CN105006396A - Switch module of ultrathin reflective computer input equipment - Google Patents

Switch module of ultrathin reflective computer input equipment Download PDF

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Publication number
CN105006396A
CN105006396A CN201510412638.0A CN201510412638A CN105006396A CN 105006396 A CN105006396 A CN 105006396A CN 201510412638 A CN201510412638 A CN 201510412638A CN 105006396 A CN105006396 A CN 105006396A
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CN
China
Prior art keywords
reflecting surface
light
set casing
switch module
keycap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510412638.0A
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Chinese (zh)
Inventor
郎欢标
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MIKOLTA OPTOELECTRONIC TECHNOLOGY Co Ltd
Original Assignee
MIKOLTA OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MIKOLTA OPTOELECTRONIC TECHNOLOGY Co Ltd filed Critical MIKOLTA OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority to CN201510412638.0A priority Critical patent/CN105006396A/en
Priority to PCT/CN2015/088047 priority patent/WO2017008372A1/en
Publication of CN105006396A publication Critical patent/CN105006396A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/06—Reflector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/002—Calculator, computer

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

The invention relates to a switch module of ultrathin reflective computer input equipment, and particularly to a push button switch of a computer input keyboard and a push button switch of a computer mouse. The switch module comprises a light transmitting device and a light receiving device. An optical path channel is formed between the light transmitting device and the light receiving device through at least one reflecting surface. The reflecting surface is integrated on a button switch, a button cap or a fixed housing. When the push button is pressed down or released, vertical movement of partial reflecting surface makes the optical path be on or off, thereby triggering on and off of a circuit which is connected with the light receiving device. The invention further discloses a button cap character illuminating system which comprises the components of a single-color LED or multi-color LED illuminating light source which is arranged on a PCB, and an optical device which is arranged on an upper fixing housing for light distribution. The switch module of the ultrathin reflective computer input equipment has advantages of simple structure, low cost, convenient assembly, low height, etc. Furthermore the height of the switch module is only 1/3-1/4 of that of a traditional mechanical keyboard.

Description

A kind of switch module of computer input apparatus of super thin reflective
Technical field
The present invention relates to the technical field of electronic installation input equipment, particularly a kind of switch module of computer input apparatus of super thin reflective.
Background technology
Mechanical keyboard is the main flow in current computor-keyboard market, its on-off principle is: when button pressed with when loosening, the hard contact be positioned on mechanical keys axle contacts with the metal clips be fixed on housing with non-contact action thus the conducting of realizing circuit and disconnection, this mechanical contact structure easily produces fatigability infringement, easily wear and tear in shell fragment and contact, thus occurring that switch control rule lost efficacy or misoperation controls, life of product falls short of; Its two, metal clips and contact easily by environment for use affect cause oxidation and aging, cause conducting contact bad, cause switch control rule lost efficacy or misoperation control.In addition, the button aspect ratio of mechanical axis keyboard is higher, when button loosen, spring upspring time, be 16mm ~ 19mm from the height of keycap top to below pcb board (printed circuit board (PCB)), button pressed on earth time height also have 12mm ~ 15mm.
Photoelectric key board is technology emerging at present, technically main way is the basic structure retaining traditional mechanical type keyboard switch module at present, comprise key axle, spring, upper-lower casing substantially constant, and just change the hard contact of original mechanical keyboard switch module and shell fragment into light shutter device, increase a light emitting devices and a light receiving element (light-sensitive element) simultaneously.When button pressed or when rising, light shutter device is switched on or cut off, thus triggers the logical and disconnected of the circuit that light receiving element connects.The advantage of photoelectric key board is: the impact controlling accurately, switching over action is faster, highly sensitive, feel better, can not be subject to contact wear and deterioration by oxidation, and long service life, can meet high-frequency and apply for a long time; And there is not the jitter problem of Mechanical Contact, odds and ends news, switch motion time zero postpone, and operates sensitiveer, quick and accurate etc.But because photoelectric key board prior art passes on from originally traditional mechanical keyboard switch module, its button aspect ratio is higher, volume ratio is comparatively large, compares and is applicable to desk-top input equipment, be not suitable for being integrated on notebook computer and miniature portable digital equipment.
Summary of the invention
First object of the present invention is that the shortcoming overcoming prior art is with not enough, provides a kind of switch module of computer input apparatus of super thin reflective.
Another object of the present invention is, provides a kind of keycap character illuminator coordinating the switch module of the computer input apparatus of super thin reflective to use.
First object of the present invention is achieved through the following technical solutions:
A kind of switch module of computer input apparatus of super thin reflective, comprise keycap, key axle, spring, upper set casing, lower set casing, pcb board, described super thin reflective PKB photoelectric keyboard switch module also comprises a light emitting devices and a light receiving element, path channels is formed by the reflecting surface of at least one between light emitting devices and light receiving element, described reflecting surface, it is integrated in keycap, key axle, on upper set casing or lower set casing, when button pressed or when loosening, moving up and down of part reflecting face makes light path be switched on or cuts off, thus trigger the logical and disconnected of the circuit that connects of light receiving element.
Further, described light emitting devices and described light receiving element are all arranged on described pcb board, described lower set casing is provided with the first through hole and the second through hole, and described first through hole is positioned at above described light emitting devices, described second through hole is positioned at above described light receiving element.
Further, described path channels comprises the second reflecting surface be positioned at below key axle, and the first reflecting surface be positioned at below stationary housing and the 3rd reflecting surface,
From the light that light emitting devices sends, incide on the first reflecting surface below upper set casing after the first through hole on lower set casing, when button pressed, described second reflecting surface on key axle just in time aims at described first reflecting surface be positioned at below set casing, the collimated ray of coming from described first reflecting surface incidence reflects by it, reflection ray incides on described 3rd reflecting surface of opposite side below set casing, incident ray is converged to through the second through hole of lower set casing the light receiving element being positioned at pcb board by described 3rd reflecting surface again, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, key axle and described first reflecting surface move up together, and the second reflecting surface be positioned on key axle staggers with the first reflecting surface be positioned at below set casing, and light path is cut off, and the circuit be connected is in off-state.
Further, described in the first reflecting surface be positioned at below set casing be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be pure-surface, or the compound curved surfaces of multiple compositions; Described the 3rd reflecting surface being positioned at opposite side below set casing, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, is the compound curved surfaces of multiple compositions; The first described reflecting surface is coupled with the 3rd reflecting surface light path by the reflection of the second reflecting surface.
Further, the first described reflecting surface and the second reflecting surface and the 3rd reflecting surface are arranged relative to key axle Central Symmetry, also can be asymmetric setting.
Further, described path channels comprises and is positioned at the 5th reflecting surface below key axle and the 6th reflecting surface, and the 4th reflecting surface be positioned at below stationary housing and the 7th reflecting surface,
From the light that light emitting devices sends, incide on the 4th reflecting surface below upper set casing after the first through hole on lower set casing, when button pressed, described 5th reflecting surface on key axle just in time aims at described 4th reflecting surface be positioned at below set casing, the collimated ray of coming from described 4th reflecting surface incidence reflects by it, reflection ray incides on described 6th reflecting surface of the opposite side be positioned at equally on key axle, through secondary reflection again, reflection ray to incide below set casing on the 7th reflecting surface described in another, incident ray is converged to through the second through hole of lower set casing the light receiving element being positioned at pcb board by described 7th reflecting surface again, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, key axially moves, key axle and described 5th, the 6th reflecting surface move up together, the 5th reflecting surface be positioned on key axle staggers with the 4th reflecting surface be positioned at below set casing, simultaneously, the 6th reflecting surface be positioned on key axle staggers with the 7th reflecting surface be positioned at below set casing, and light path is cut off, and the circuit be connected is in off-state.
Further, described in the 4th reflecting surface be positioned at below set casing be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be pure-surface, or the compound curved surfaces of multiple compositions.Described the 7th reflecting surface being positioned at opposite side below set casing, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.The 4th described reflecting surface is coupled with the 7th reflecting surface light path by the reflection of the 5th reflecting surface and the 6th reflecting surface.
Further, the 4th described reflecting surface and the 5th reflecting surface and the 6th reflecting surface and the 7th reflecting surface are arranged relative to key axle Central Symmetry, also can be asymmetric setting.
Further, described path channels comprises and is positioned at the 9th reflecting surface below key axle and the tenth reflecting surface, be positioned at the 8th reflecting surface below stationary housing and the 11 reflecting surface, and be positioned at the collimating lens of lower set casing first lead to the hole site or/and the condenser lens of the second lead to the hole site
From the light that light emitting devices sends, incide on the 8th reflecting surface below upper set casing after the collimating lens of the first lead to the hole site on lower set casing, when button pressed, described 9th reflecting surface on key axle just in time aims at described 8th reflecting surface be positioned at below set casing, the collimated ray of coming from described 8th reflecting surface incidence reflects by it, reflection ray incides on described tenth reflecting surface of the opposite side be positioned at equally on key axle, through secondary reflection again, reflection ray to incide below set casing on the 11 reflecting surface described in another, the condenser lens of incident ray second lead to the hole site on lower set casing is converged to the light receiving element being positioned at pcb board by described 11 reflecting surface again, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, key axially moves, key axle and described 9th, the tenth reflecting surface move up together, the 9th reflecting surface be positioned on key axle staggers with the 8th reflecting surface be positioned at below set casing, simultaneously, the tenth reflecting surface be positioned on key axle staggers with the 11 reflecting surface be positioned at below set casing, and light path is cut off, and the circuit be connected is in off-state.
Further, described in the 8th reflecting surface be positioned at below set casing be the plane of inclination 45 degree, also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be the compound curved surface formed by multiple;
Described the 11 reflecting surface being positioned at opposite side below set casing, its reflecting surface is the plane of inclination 45 degree, also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it also can be the compound curved surface formed by multiple;
The 8th described reflecting surface is coupled with the 11 reflecting surface light path by the reflection of the 9th reflecting surface and the tenth reflecting surface.
Further, the 8th described reflecting surface and the 9th reflecting surface and the tenth reflecting surface and the 11 reflecting surface are arranged relative to key axle Central Symmetry, also can be asymmetric setting.
Further, described path channels comprises the 12 reflecting surface be positioned at below keycap and the 13 reflecting surface being positioned at set casing,
From the light that light emitting devices sends, incide on the 12 reflecting surface below keycap after the first lead to the hole site on lower set casing, when button pressed, described 12 reflecting surface below keycap just in time aims at described 13 reflecting surface of set casing, the light of coming from described 12 reflecting surface incidence carries out collimating or partly collimating injection by it, the light of injection is down transferred through described 13 reflecting surface and assembles again, light after convergence second through hole on lower set casing focuses on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pull-off spring is returned to original position, the 12 reflecting surface be positioned at below keycap staggers completely with the 13 reflecting surface be positioned on set casing, and light path is cut off, and the circuit be connected is in off-state.
Further, described the 13 reflecting surface being positioned at the 12 reflecting surface below keycap and being positioned at set casing is all off axis paraboloid mirrors, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions.
Further, described path channels comprise be positioned at lower set casing first lead to the hole site collimating lens, be positioned at the 14 reflecting surface below keycap and be positioned at free form surface the 15 reflecting surface of set casing,
From the light that light emitting devices sends, on the 14 reflecting surface after the collimating lens of the first lead to the hole site on lower set casing below collimated incident to keycap, when button pressed, described 14 reflecting surface below keycap just in time aims at described 15 reflecting surface of set casing, the light of coming from described 14 reflecting surface incidence is carried out collimation injection by it, the light of injection is down transferred through described 15 reflecting surface and assembles again, light after convergence second through hole on lower set casing focuses on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pull-off spring is returned to original position, the 14 reflecting surface be positioned at below keycap staggers completely with the 15 reflecting surface be positioned on set casing, and light path is cut off, and the circuit be connected is in off-state.
Further, described the 14 reflecting surface be positioned at below keycap is clinoplain, described the 15 reflecting surface being positioned at set casing is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
Further, described path channels comprise be positioned at lower set casing first lead to the hole site collimating lens, be positioned at the 16 reflecting surface below keycap, be positioned at the 17 speculum of set casing and be positioned at the collector lens composition of lower set casing second lead to the hole site
From the light that light emitting devices sends, on the 16 reflecting surface after the collimating lens of the first lead to the hole site on lower set casing below collimated incident to keycap, when button pressed, described 16 reflecting surface below keycap just in time aims at described 17 reflecting surface of set casing, the light of coming from described 16 reflecting surface incidence is carried out collimation injection by it, the light of injection is down transferred through described 17 reflecting surface again, then after the Fresnel light condensing lens of lower set casing second lead to the hole site is assembled, focus on the light receiving element of pcb board, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, the 16 reflecting surface be positioned at below keycap staggers completely with the 17 reflecting surface be positioned on set casing, and light path is cut off, and the circuit be connected is in off-state.
Further, describedly be positioned at the 14 reflecting surface below keycap and described the 17 reflecting surface be positioned on set casing is clinoplain, also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, or be the compound curved surfaces of multiple compositions.
Further, described path channels comprises the eighteen incompatibilities be positioned at below keycap and penetrates face and be positioned at the first refractive prism of lower set casing second lead to the hole site,
From the light that light emitting devices sends, after the first through hole on lower set casing, collimated incident is penetrated on face to the eighteen incompatibilities be positioned at below keycap, when button pressed, described eighteen incompatibilities below keycap are penetrated face and are just in time aimed at the first refractive prism being positioned at lower set casing second lead to the hole site, the light sent from light emitting devices carries out collimating or partly collimating and rear injection of transferring by it, the light of injection carries out total reflection convergence through described first refractive prism again, and toward below turnover, ray cast after refractive power is to the light receiving element of pcb board, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, the eighteen incompatibilities be positioned at below keycap are penetrated face and are staggered completely with the first refractive prism being positioned at lower set casing second lead to the hole site, and light path is cut off, and the circuit be connected is in off-state.
Further, described in the eighteen incompatibilities be positioned at below keycap penetrate that face is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or be multiple the compound curved surfaces formed;
Described the first refractive prism being positioned at lower set casing second lead to the hole site, it penetrates side, face near eighteen incompatibilities a perpendicular, and it is input face; It penetrates away from eighteen incompatibilities the freely curved face total reflection face that there is an inclination side, face, and it can be off axis paraboloid mirror, from axle quadratic surface or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions; Have the transmission plane of a level below it, it is output face.
Further, described path channels comprises the 3rd refractive prism being positioned at first gear mating plate below keycap, being positioned at the second refractive prism on lower set casing first lead to the hole site and being positioned on lower set casing second lead to the hole site, and second, third refractive prism described is all with the promising reflecting curved surface for light refraction;
Described second refractive prism is aimed at mutually with described 3rd refractive prism, when button loosens, through the light that light emitting devices sends, after luxuriant and rich with fragrance alunite face below described second refractive prism, collimated incident is on the fully reflecting surface of described second refractive prism inclined upward, export from perpendicular on the right of described second refractive prism after the turnover of its fully reflecting surface, the light exported is in described 3rd refractive prism of opposite side, after the fully reflecting surface turnover of its inclined upward, converge on the light receiving element of pcb board by the Fresnel surface below it again, thus circuits for triggering conducting,
When button pressed, the first gear mating plate be positioned at below keycap moves down, and the light between described second refractive prism and described 3rd refractive prism blocks by completely, and light path is cut off, and the circuit be connected is in off-state.
Further, the top of described second refractive prism and described 3rd refractive prism for be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions, is Fresnel surface below it.
Further, described path channels comprises the 20 reflecting surface being positioned at second gear mating plate below keycap, being positioned at the 19 reflecting surface on set casing and being positioned at equally on set casing,
Described 19 reflecting surface is aimed at mutually with described 20 reflecting surface, when button loosens, through the light that light emitting devices sends, through being positioned on set casing for collimate and light path of transferring the 19 reflective surface after, the light of collimation injection is down transferred through described 20 reflecting surface again, then converge on the light receiving element of pcb board through lower set casing second through hole, thus circuits for triggering conducting; When button pressed, the second gear mating plate be positioned at below keycap moves down, and the light between described 19 reflecting surface and described 20 reflecting surface blocks by completely, and light path is cut off, and the circuit be connected is in off-state.
Further, described 19 reflecting surface and described 20 reflecting surface be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
Further, described path channels comprises and is positioned at third gear mating plate below keycap, is positioned at for the 4th refractive prism of light path of transferring and the 21 reflecting surface that is positioned at for light path of transferring on upper set casing on lower set casing first lead to the hole site,
Described 4th refractive prism is aimed at mutually with described 21 reflecting surface, when button loosens, through the light that light emitting devices sends, after the fully reflecting surface reflection of described 4th refractive prism, the light of refractive power injection is down transferred through described 21 reflecting surface again, then converge on the light receiving element of pcb board through lower set casing second through hole, thus circuits for triggering conducting;
When button pressed, the third gear mating plate be positioned at below keycap moves down, and the light between described 4th refractive prism and described 21 reflecting surface blocks by completely, and light path is cut off, and the circuit be connected is in off-state.
Further, the top of described 3rd refractive prism is the fully reflecting surface of inclination curved form, and it is from the parabola of axle, from axle quadratic surface or polynomial surface, and it also can be inclination pure-surface, or be the compound curved surface of multiple compositions, be Fresnel surface below it;
Described 21 reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
Further, described path channels comprises and being positioned at fourth gear mating plate below keycap, being positioned on lower set casing on the first lead to the hole site for collimating and the 5th refractive prism of light path of transferring and the 6th refractive prism that is positioned at equally for light path of transferring on the second lead to the hole site on lower set casing
Described 5th refractive prism is aimed at mutually with described 6th refractive prism, when button loosens, through the light that light emitting devices sends, after the fully reflecting surface reflection of described 5th refractive prism, the light of collimation injection down reflects turnover through the fully reflecting surface of described 6th refractive prism again, converge on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pressed, the fourth gear mating plate be positioned at below keycap moves down, and the light between described 5th refractive prism and described 6th refractive prism blocks by completely, and light path is cut off, and the circuit be connected is in off-state.
Further, the top of the described 5th and the 6th refractive prism is the fully reflecting surface of inclination curved form, and it is from the parabola of axle, from axle quadratic surface or polynomial surface, and it can be also inclination pure-surface, or is the compound curved surface of multiple compositions; The below of the described 5th and the 6th refractive prism is Fresnel surface.
Further, described path channels comprises and is positioned at the 22 reflecting surface below keycap and the 23 reflecting surface, the collimation Fresnel Lenses be positioned on lower set casing first lead to the hole site, the fifth gear mating plate that is positioned at the light-focusing Fresnel lens on lower set casing second lead to the hole site and is positioned on pcb board
Described 22 reflecting surface is aimed at mutually with described 23 reflecting surface, when button loosens, through the light that light emitting devices sends, after being positioned at and lower set casing collimating Fresnel Lenses collimation, incide on described 22 reflecting surface that is positioned at below keycap, light ray bending after reflection, reenter and be mapped to opposite side, be positioned at described 23 reflecting surface below keycap equally, after secondary reflection again, light incides the light-focusing Fresnel lens being arranged in lower set casing downwards, converge on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pressed, the light between described 22 reflecting surface and described 23 reflecting surface blocks by fifth gear mating plate on pcb board completely, and light path is cut off, and the circuit be connected is in off-state.
Further, described 22 reflecting surface and the 23 reflecting surface are clinoplain, and it also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, or is the compound curved surfaces of multiple compositions.
Further, described path channels comprises and is positioned at the first right-angle prism below keycap and the second right-angle prism, the collimation Fresnel Lenses be positioned on lower set casing first lead to the hole site, the sixth gear mating plate that is positioned at the light-focusing Fresnel lens on lower set casing second lead to the hole site and is positioned on pcb board
Described first right-angle prism and described second right-angle prism are aimed at mutually, when button loosens, through the light that light emitting devices sends, after being positioned at and lower set casing collimating Fresnel Lenses collimation, incide described first right-angle prism be positioned at below keycap, after the reflective surface above it, light ray bending incides opposite side, be positioned at described second right-angle prism below keycap equally, after the reflecting surface above it again secondary reflection, light incides the light-focusing Fresnel lens being arranged in lower set casing downwards, converge on the light receiving element of pcb board, thus circuits for triggering conducting,
When button pressed, the light between described first right-angle prism and described second right-angle prism blocks by sixth gear mating plate on pcb board completely, and light path is cut off, and the circuit be connected is in off-state.
Further, reflecting surface above described first right-angle prism and described second right-angle prism is fully reflecting surface, and being clinoplain, it also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, or is the compound curved surfaces of multiple compositions.
Further, described path channels comprises the 7th light barrier being positioned at the 24 reflecting surface below keycap and the 25 reflecting surface and being positioned on pcb board,
Described 24 reflecting surface and described 25 reflecting surface are aimed at mutually, when button loosens, through the light that light emitting devices sends, described 24 reflecting surface be positioned at below keycap is incided through being positioned at the first through hole on lower set casing, after reflection ray cast to opposite side, be positioned at below keycap the 25 reflecting surface equally on, after secondary reflection again, transfer below light directive, converge on the light receiving element of pcb board through the second through hole be positioned on lower set casing, thus circuits for triggering conducting;
When button pressed, the light between described 24 reflecting surface and described 25 reflecting surface blocks by the 7th light barrier on pcb board completely, and light path is cut off, and the circuit be connected is in off-state.
Further, described 24 reflecting surface and described 25 reflecting surface be all off axis paraboloid mirrors, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
Further, described light emitting devices is vertically arranged on fixed shell, and described light receiving element is arranged on described pcb board, and described lower set casing is provided with the second through hole, and described second through hole is positioned at above described light receiving element.
Further, the 27 reflecting surface that described path channels comprises the collimation Fresnel Lenses being arranged at set casing, the 26 reflecting surface being positioned at key axle and is positioned at below set casing,
From the light that light emitting devices sends, after the collimation Fresnel Lenses on upper set casing, collimated incident is on described 26 reflecting surface of key axle, when button pressed, described 26 reflecting surface of key axle just in time aims at described 27 reflecting surface below set casing, the light of coming from described 26 reflecting surface incidence is carried out turnover injection by it, the light of injection focuses on the light receiving element of pcb board after lower set casing second lead to the hole site, thus circuits for triggering conducting;
When button pull-off spring is returned to original position, described 26 reflecting surface and described 27 reflecting surface stagger completely, and light path is cut off, and the circuit be connected is in off-state.
Further, described 27 reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
Further, described path channels comprises the collimation Fresnel Lenses being arranged at set casing, the 7th refractive prism being positioned at the 8th light barrier below keycap and being positioned on lower set casing second lead to the hole site,
The described collimation Fresnel Lenses and described 7th refractive prism that are arranged at set casing are aimed at mutually, when button loosens, through the light that light emitting devices sends, through the injection of described collimation Fresnel Lenses collimation, described 7th refractive prism under light to being arranged in of opposite side on set casing second lead to the hole site, after the fully reflecting surface turnover of its inclined upward, condensation Fresnel plane below described 7th refractive prism converges on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pressed, the light between described collimation Fresnel Lenses and described 7th refractive prism blocks by the 8th light barrier below keycap completely, and light path is cut off, and the circuit be connected is in off-state.
Further, the top of described 7th refractive prism is the reflecting surface tilted, this reflecting surface is from the parabola of axle, free form surface from axle quadratic surface or polynomial surface form, it also can be inclination pure-surface, or be the compound curved surface of multiple compositions, the below of described 7th refractive prism is condensation Fresnel face.
Further, described path channels comprises the collimation Fresnel Lenses being arranged at set casing, the second eighteen incompatibilities being positioned at the 9th light barrier below keycap and being positioned at set casing penetrate face,
Be arranged at the described collimation Fresnel Lenses of set casing and described second eighteen incompatibilities to penetrate face and mutually aim at, when button loosens, through the light that light emitting devices sends, through the injection of described collimation Fresnel Lenses collimation, light penetrates face to second eighteen incompatibilities being positioned at upper set casing of opposite side, after its reflection turnover, converge on the light receiving element of pcb board through the second through hole be positioned on lower set casing, thus circuits for triggering conducting;
When button pressed, the light that described collimation Fresnel Lenses and described second eighteen incompatibilities are penetrated between face blocks by the 9th light barrier below keycap completely, and light path is cut off, and the circuit be connected is in off-state.
Further, described second eighteen incompatibilities penetrate that face is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
Further, described path channels comprises the collimation Fresnel Lenses being arranged at set casing, the 8th refractive prism being positioned at the tenth light barrier below keycap and being positioned on lower set casing second lead to the hole site,
The described collimation Fresnel Lenses and described 8th refractive prism that are arranged at set casing are aimed at mutually, when button loosens, through the light that light emitting devices sends, through the injection of described collimation Fresnel Lenses collimation, described 8th refractive prism under light to being arranged in of opposite side on set casing second lead to the hole site, after the fully reflecting surface turnover of its inclined upward, then the transmission plane below it converges on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pressed, the light between described collimation Fresnel Lenses and described 8th refractive prism blocks by the tenth light barrier below keycap completely, and light path is cut off, and the circuit be connected is in off-state.
Further, the top of described 8th refractive prism is the reflecting surface tilted, this reflecting surface is from the parabola of axle, free form surface from axle quadratic surface or polynomial surface form, it also can be inclination pure-surface, or be the compound curved surface of multiple compositions, the below of described 8th refractive prism is transmission plane.
Further, described light receiving element is vertically arranged on fixed shell, and described light emitting devices is arranged on described pcb board, and described lower set casing is provided with the first through hole, and described first through hole is positioned at above described light emitting devices.
Further, described path channels comprises and is arranged at the 29 reflecting surface, the 30 reflecting surface be positioned on key axle below set casing, is positioned at the 31 reflecting surface of opposite side on key axle and is positioned at the light-focusing Fresnel lens of set casing,
From the light that light emitting devices sends, described 29 reflecting surface after the first through hole on lower set casing below collimated incident to upper set casing, when button pressed, described 30 reflecting surface on key axle just in time aims at described 29 reflecting surface below set casing, the light of coming from described 29 reflecting surface incidence is carried out turnover injection by it, then described 31 reflecting surface of the opposite side be positioned at equally on key axle is incided, after again reflecting turnover, the light receiving element of set casing is focused on after re-shooting the light-focusing Fresnel lens being positioned at set casing opposite side, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, described 30 reflecting surface and described 29 reflecting surface stagger completely, described 31 reflecting surface also staggers completely with described light-focusing Fresnel lens simultaneously, and light path is cut off, and the circuit be connected is in off-state.
Further, described 29 reflecting surface is from the parabola of axle, free form surface from axle quadratic surface or polynomial surface form, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
Further, described path channels comprises the light-focusing Fresnel lens be positioned on set casing being positioned at described 11 light barrier below keycap, being positioned at described 9th refractive prism on lower set casing and described 11 light barrier opposite side,
Described 9th refractive prism is aimed at mutually with the described light-focusing Fresnel lens being arranged at upper set casing, when button loosens, from the light that light emitting devices sends, after the first through hole on lower set casing, collimated incident is to described 9th refractive prism, after its collimation and turnover, what incide opposite side is arranged in light-focusing Fresnel lens described in set casing, then converges to the light receiving element of set casing, thus circuits for triggering conducting;
When button pressed, the light between described collimation Fresnel Lenses and described 9th refractive prism blocks by described 11 light barrier below keycap completely, and light path is cut off, and the circuit be connected is in off-state.
Further, the top of described 9th refractive prism is the reflecting surface tilted, this reflecting surface is from the parabola of axle, free form surface from axle quadratic surface or polynomial surface form, it also can be inclination pure-surface, or be the compound curved surface of multiple compositions, the below of described 9th refractive prism is transmission plane.
Further, described light receiving element is vertically arranged on described keycap, and described light emitting devices is arranged on described pcb board, and described lower set casing is provided with the first through hole, and described first through hole is positioned at above described light receiving element.
Further, described path channels comprises and is positioned at the collimation Fresnel Lenses on lower set casing first lead to the hole site, the 12 light barrier be fixed on described pcb board, is fixed on below keycap and lays respectively at the 32 reflecting surface and light-focusing Fresnel lens of described 12 light barrier both sides
Described 32 reflecting surface is aimed at mutually with the described light-focusing Fresnel lens be fixed on below keycap, when button loosens, from the light that light emitting devices sends, after the collimation Fresnel Lenses on lower set casing first lead to the hole site, collimated incident is to described 32 reflecting surface, after its turnover, incide in the described light-focusing Fresnel lens being fixed on below keycap of opposite side, then converge to the light receiving element be fixed on equally below keycap, thus circuits for triggering conducting;
When button pressed, the light between described light-focusing Fresnel lens and described 32 reflecting surface blocks by the 12 light barrier completely that be fixed on described pcb board, and light path is cut off, and the circuit be connected is in off-state.
Further, described light-focusing Fresnel lens and described light receiving element are fixed on below keycap by the mode of buckle.
Further, described 32 reflecting surface is clinoplain.
Further, described path channels comprises and is positioned at the collimation Fresnel Lenses on lower set casing first lead to the hole site, the 13 light barrier be fixed on described pcb board, is fixed on below keycap and lays respectively at the 3rd right-angle prism and light-focusing Fresnel lens of described 12 light barrier both sides
Described 3rd right-angle prism is aimed at mutually with the described light-focusing Fresnel lens be fixed on below keycap, when button loosens, from the light that light emitting devices sends, after the collimation Fresnel Lenses on lower set casing first lead to the hole site, collimated incident is to described 3rd right-angle prism, after the reflecting surface of its clinoplain launches turnover, incide in the described light-focusing Fresnel lens being fixed on below keycap of opposite side, converge to the light receiving element be fixed on equally below keycap again, thus circuits for triggering conducting;
When button pressed, the light between described light-focusing Fresnel lens and described 3rd right-angle prism blocks by the 13 light barrier completely that be fixed on described pcb board, and light path is cut off, and the circuit be connected is in off-state.
Further, described light-focusing Fresnel lens, described light receiving element and described 3rd right-angle prism are all fixed on below keycap by the mode of buckle.
Further, the top of described 3rd right-angle prism is the reflecting surface of clinoplain.
Further, described reflecting surface is high reflectance surface, and its reflection coefficient is more than 80%, and it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Further, described light emitting devices is SMD IR infrared diode or laser diode, and described light receiving element is that SMD PT manages.
Further, described light barrier is the material of black light-absorbing, and itself and described keycap are adopted the method injection mo(u)lding of double-shot moulding or combined by the mode of buckle, or are arranged on above described pcb board by the mode of buckle.
Another object of the present invention is achieved through the following technical solutions:
A kind of keycap character illuminator, the switch module of the computer input apparatus of power super thin reflective is coordinated to use, described keycap character illuminator comprises: the optics being arranged on the lighting source on described pcb board and being positioned at for luminous intensity distribution on fixed shell, wherein said lighting source is monochromatic LED chip or multi-colored led chip, the expanding sheet of the inside doping diffusion particle that described optics is trapezoidal reflector, square reflector, spreadlight lens, total reflection lens, compound lens or be used for does mixed light process.
Preferably, described optics is trapezoidal reflector or square reflector, its light sent by described lighting source carries out luminous intensity distribution, be assigned to required illumination zone, its reflecting surface is high reflectance surface, its reflection coefficient is more than 80%, and it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Preferably, described optics is decentered lens, and its top-surface camber is eccentric, asymmetrical free form surface.
Preferably, described optics is total reflection lens, and it comprises middle refracted portion and the total reflection part of outer ring.
Preferably, described optics is compound lens, its lower surface is zigzag Fresnel surface, it can collect the light of wide-angle, and collimate, reenter after collimation and be mapped on its upper surface, its upper surface is convex surface, is used for the light that lower surface collimated incident is come to be assigned to required field of illumination.
Preferably, described lighting source is multi-colored led chip, and described optics is the expanding sheet of the inside doping diffusion particle for doing mixed light process.
The present invention has following advantage and effect relative to prior art:
1) PKB photoelectric keyboard of super thin reflective disclosed by the invention is opened the light module, it has that structure is simpler, cost is lower, assemble the features such as more aspect, switch module height are low, it highly only has 1/3 ~ 1/4 of traditional mechanical axle key dish, than being more suitable for keyboard for computer, palm formula flat board mobile device, computer mouse device and Digit Control Machine Tool input equipment.
2) PKB photoelectric keyboard of super thin reflective disclosed by the invention is opened the light module, adopt disconnection and the path of pure photoelectric device control switch, without the need to mechanical type hard contact, its switch life can reach 100,000,000 times, the wearing and tearing of traditional mechanical axis Metal Contact shell fragment fatigability can not occur and be oxidized the quality problem such as long verdigris.
Accompanying drawing explanation
Fig. 1 is the decomposition chart such as axle side such as grade of the switch module of the computer input apparatus of super thin reflective disclosed in the present embodiment 1;
Fig. 2 is the exploded front structure chart of the switch module of the computer input apparatus of super thin reflective disclosed in the present embodiment 1;
Fig. 3 is its profile along A-A direction under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 1;
Fig. 4 (a) is its profile along A-A direction under the state pressed of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 1;
Fig. 4 (b) be under the state pressed of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 1 its along the profile that arrow T direction in Fig. 1 is looked;
Fig. 5 is its profile along D-D direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 2;
Fig. 6 (a) is its profile along D-D direction in Fig. 1 under the state pressed of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 2;
Fig. 6 (b) be under the state pressed of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 2 its along the profile that arrow T direction in Fig. 1 is looked;
Fig. 7 is its profile along D-D direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 3;
Its profile along D-D direction in Fig. 1 under the state that Fig. 8 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 3;
Fig. 9 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 4;
Its profile along B-B direction in Fig. 1 under the state that Figure 10 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 4;
Figure 11 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 5;
Its profile along B-B direction in Fig. 1 under the state that Figure 12 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 5;
Figure 13 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 6;
Its profile along B-B direction in Fig. 1 under the state that Figure 14 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 6;
Figure 15 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 7;
Its profile along B-B direction in Fig. 1 under the state that Figure 16 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 7;
Figure 17 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 8;
Its profile along B-B direction in Fig. 1 under the state that Figure 18 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 8;
Figure 19 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 9;
Its profile along B-B direction in Fig. 1 under the state that Figure 20 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 9;
Figure 21 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 10;
Its profile along B-B direction in Fig. 1 under the state that Figure 22 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 10;
Figure 23 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 11;
Its profile along B-B direction in Fig. 1 under the state that Figure 24 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 11;
Figure 25 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 12;
Its profile along B-B direction in Fig. 1 under the state that Figure 26 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 12;
Figure 27 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 13;
Its profile along B-B direction in Fig. 1 under the state that Figure 28 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 13;
Figure 29 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 14;
Its profile along B-B direction in Fig. 1 under the state that Figure 30 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 14;
Figure 31 is its profile along D-D direction in Fig. 1 under the state pressed of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 15;
Figure 32 be under the state pressed of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 15 its along the profile that arrow T direction in Fig. 1 is looked;
Figure 33 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 16;
Its profile along B-B direction in Fig. 1 under the state that Figure 34 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 16;
Figure 35 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 17;
Its profile along B-B direction in Fig. 1 under the state that Figure 36 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 17;
Figure 37 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 18;
Its profile along B-B direction in Fig. 1 under the state that Figure 38 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 18;
Figure 39 is its profile along D-D direction in Fig. 1 under the state pressed of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 19;
Figure 40 be under the state pressed of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 19 its along the profile that arrow T direction in Fig. 1 is looked;
Figure 41 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 20;
Its profile along B-B direction in Fig. 1 under the state that Figure 42 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 20;
Figure 43 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 21;
Its profile along B-B direction in Fig. 1 under the state that Figure 44 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 21;
Figure 45 is its profile along B-B direction in Fig. 1 under the state loosened of the switch module button of the computer input apparatus of super thin reflective disclosed in the present embodiment 22;
Its profile along B-B direction in Fig. 1 under the state that Figure 46 is the switch module button pressed of the computer input apparatus of super thin reflective disclosed in the present embodiment 22;
Figure 47 is disclosed its profile along C-C direction in Fig. 1 of keycap character illuminator for PKB photoelectric keyboard switch module of the present embodiment 23;
Figure 48 is the disclosed design principle figure for the keycap character illuminator of PKB photoelectric keyboard switch module of the present embodiment 23;
Figure 49 is disclosed its profile along C-C direction in Fig. 1 of keycap character illuminator for PKB photoelectric keyboard switch module of the present embodiment 24;
Figure 50 is disclosed its profile along C-C direction in Fig. 1 of keycap character illuminator for PKB photoelectric keyboard switch module of the present embodiment 25;
Figure 51 is disclosed its profile along C-C direction in Fig. 1 of keycap character illuminator for PKB photoelectric keyboard switch module of the present embodiment 26;
Figure 52 is disclosed its profile along C-C direction in Fig. 1 of keycap character illuminator for PKB photoelectric keyboard switch module of the present embodiment 27.
Embodiment
For making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the decomposition chart such as axle side such as grade of its specific embodiment one as shown in Figure 1, exploded front structure chart as shown in Figure 2, it is by keycap 11, key axle 12, spring 13, upper set casing 14, lower set casing 15, pcb board (printed circuit board (PCB)) 16 bottom, SMD (Surface Mounted Devices surface mount device) IR manages (Infrared Radiation infrared ray) 17 (surface mount infrared diodes, or infra-red laser diode), SMD PT (Phototransistor phototriode) 18 (surface-pasted phototriode), and form for the SMD LED 19 (surface-pasted light-emitting diode) of keycap character illumination.Described SMD IR pipe 17, it is light emitting devices.Described SMD PT pipe 18, it is light receiving element.In this concrete enforcement one, along the profile through the A-A direction of SMD IR pipe 17 light-emitting area central point Ji Jianzhou center O point as shown in Figure 3; Described key axle 12, there is a second reflecting surface 12-1 in the outside below it; Described upper set casing 14, below it, medial surface has two the first reflecting surface 14-2 for key switch control channel and the 3rd reflecting surface 14-3, has one for the trapezoidal reflector 14-1 of keycap character illuminating light distribution on the right side of it; Described lower set casing 15, it has a first through hole 15-1 above SMD IR pipe 17, and its opposite side has another second through hole 15-2 above SMD PT pipe 18.
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the operation principle of its specific embodiment one is as shown in Fig. 3 and Fig. 4 (a), (b), Fig. 3 is the state of button when loosening, shown in Fig. 4 (a), (b) be button pressed time state, Fig. 4 (a) is the index path along A-A section in Fig. 1, Fig. 4 (b) is for upwards watching the index path of upper set casing 14 and key axle 12 along arrow T direction in Fig. 1, it is corresponding with the index path along A-A section of Fig. 4 (a).From the light that the center P point of SMD IR pipe 17 sends, incide on the first reflecting surface 14-2 below upper set casing 14 after the first through hole 15-1 of lower set casing, the first described reflecting surface 14-2, it is free form surface, it can be off axis paraboloid mirror, from axle 2 curved surfaces or polynomial surface, it is by the collimate light of incidence, penetrates after collimation toward the direction at Jian Zhou 12 center.When button pressed is to 1.85mm, the second reflecting surface 12-1 be positioned on key axle 12 just in time aims at the first reflecting surface 14-2 be positioned at below set casing 14, and its collimated ray of incidence being come, reflects.After the second reflecting surface 12-1 on key axle 12 reflects, light after reflection is shown in shown in Fig. 4 (b), it incides on the 3rd reflecting surface 14-3 of opposite side below set casing 14,3rd reflecting surface 14-3 after the second through hole 15-2 on lower set casing 15, incident ray is converged to again be positioned at SMD PT pipe 18 center Q point on, thus circuits for triggering conducting.When button loosen, spring-return to original position time, key axially moves, the second reflecting surface 12-1 on key axle 12 is driven to move up together, the the second reflecting surface 12-1 be now positioned on key axle 12 staggers completely with the first reflecting surface 14-2 be positioned at below set casing 14, light path is cut off, SMD PT pipe 18 does not have trigger current, and connected circuit is in off-state, as shown in Figure 3.
Described the first reflecting surface be positioned at below set casing is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it also can be pure-surface, or the compound curved surfaces of multiple compositions; Described the 3rd reflecting surface being positioned at opposite side below set casing, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, is the compound curved surfaces of multiple compositions; The first described reflecting surface is coupled with the 3rd reflecting surface light path by the reflection of the second reflecting surface.
The first described reflecting surface and the second reflecting surface and the 3rd reflecting surface are arranged relative to key axle Central Symmetry, also can be asymmetric setting.
The second reflecting surface 12-1 on key axle 12 described in this specific embodiment one, it is high reflectance surface, and its reflection coefficient is more than 80%.The 3rd reflecting surface 14-3 being positioned at the first reflecting surface 14-2 below set casing 14 and opposite side described in this specific embodiment one, it is also high reflectance surface, its reflection coefficient is more than 80%, described high reflectance surface, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.。
Embodiment two
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its reflecting surface be positioned on key axle can be set to multiple reflectings surface of more than 2 or 2.Specific embodiment two is the structure of a kind of light path control reflecting surface be positioned on key axle being set to 2 reflectings surface.Its operation principle as shown in Figure 5 and Figure 6.Fig. 5 is the profile of this specific embodiments along D-D direction in Fig. 1, and its operating state is the state that button loosens, spring is upspring.Fig. 6 (a) and (b) are respectively this specific embodiments along D-D directional profile in Fig. 1 and along the index path that arrow T direction is looked, its state pressed down for button is in, the control principle of its key switch is: as button pressed 1.85mm, from the light that the center P point of SMD IR pipe 17 sends, incide on the 4th reflecting surface 24-2 that is positioned at below upper set casing 24 after the first through hole 15-1 on lower set casing 15, the 4th described reflecting surface 24-2, it is free form surface, it can be off axis paraboloid mirror, from axle 2 curved surfaces or polynomial surface, it is by the collimate light of incidence, toward the direction injection of left side level after collimation.The 5th reflecting surface 22-1 be positioned on key axle 22 just in time aims at the 4th reflecting surface 24-2 be positioned at below set casing 24, and its collimated ray of incidence being come, reflects.By the light that the 5th reflecting surface 22-1 reflects, as shown in Fig. 6 (b) (in Fig. 1, set casing 24 and key axle 22 being looked upper in arrow T direction), light transfers 90 degree clockwise, incide on another the 6th reflecting surface 22-2 of being positioned at equally on key axle 22, after secondary reflection again, incide to the right again and be positioned on the 7th reflecting surface 24-3 of opposite side below set casing 24,7th reflecting surface 24-3 again the second through hole 15-2 of incident ray on lower set casing 15 is converged to be positioned at SMD PT pipe 18 center Q point on, thus circuits for triggering conducting.When button loosen, spring-return to original position time, key axially moves, the 5th reflecting surface 22-1 on key axle 22 and the 6th reflecting surface 22-2 is driven to move up together, the 5th reflecting surface 22-1 be positioned on key axle 22 staggers completely with the 4th reflecting surface 24-2 be positioned at below set casing 24, be positioned at simultaneously the 6th reflecting surface 22-2 on key axle 22 also with upper set casing 24 below the 7th reflecting surface 24-3 being used for assembling stagger, now light path is cut off, SMD PT pipe 18 do not have trigger current, the circuit be connected is in off-state, as shown in Figure 5.7th reflecting surface 24-3 of opposite side below upper set casing 24 described in this specific embodiment two, itself and the 4th reflecting surface 24-2 are relative to key axle Central Symmetry, and its shape is just the same.In like manner, the 6th reflecting surface 22-2 of opposite side on the key axle 22 described in this specific embodiment two, itself and the 5th reflecting surface 22-1 are relative to key axle 22 Central Symmetry, and its shape is just the same.
Described the 4th reflecting surface 24-2 be positioned at below set casing 24, it is free form surface, and it can be off axis paraboloid mirror, from axle 2 curved surfaces or polynomial surface, it is by the collimate light of incidence, toward the direction injection of left side level after collimation.Described the 7th reflecting surface 24-3 be positioned at below set casing 24, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be inclination pure-surface, for the compound curved surface of multiple compositions, it is by the collimate light of incidence, assemble toward below, the light after convergence focuses on the SMD PT 18 below it.
The 5th reflecting surface 22-1 on key axle 22 described in this specific embodiment two and the 6th reflecting surface 22-2 of opposite side, be high reflectance surface, its reflection coefficient is more than 80%.The 6th reflecting surface 24-3 being positioned at the 5th reflecting surface 24-2 below set casing 24 and opposite side described in this specific embodiment two, it is also high reflectance surface, its reflection coefficient is more than 80%, described high reflectance surface, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment three
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its structure that collimation/condenser lens can be adopted to combine with reflecting surface.Its path channels by the multiple reflectings surface be positioned on key axle 32, be positioned at the multiple reflecting surface below upper set casing and be positioned at lower set casing first through hole or/and the collimation/condenser lens of the second lead to the hole site forms, shown in the specific embodiments 3 as described in Fig. 7 and Fig. 8.Fig. 7 is the profile of this specific embodiments along D-D direction in Fig. 1, its state loosened for button is in.Fig. 8 is the index path of this specific embodiments along D-D directional profile in Fig. 1, its state pressed down for button is in.In this specific embodiments, on keycap and key axle, reflecting surface is arranged, have employed the structure identical with specific embodiment two, reflecting surface 34-2 below upper stationary housing 34 then have employed the plane of inclination 45 degree, first through hole 15-1 position of lower stationary housing 35 placed a collimation Fresnel Lenses 35-1, it has larger numerical aperture, more light can be collected, the ray-collecting of SMD IR pipe 17 first gets up and collimates by it, and the eight reflecting surface 34-2 of the light after collimation again below upper stationary housing 34 reflects.When button pressed, be positioned at the 9th reflecting surface 32-1 on key axle 32 and just in time aim at the 8th reflecting surface 34-2 be positioned at below stationary housing 34, incident light of coming after the 8th reflecting surface 34-2 reflection is carried out secondary reflection again by it, the light of secondary reflection is through being positioned at the tenth reflecting surface of key axle 32 opposite side and being positioned at the 11 reflecting surface secondary reflection again of opposite side below upper stationary housing 34 again, the last focusing Fresnel Lenses again through being positioned at another the second through hole 15-2 position of lower stationary housing 35 is assembled, light focusing after convergence is in SMD PT pipe 18, conducting light paths.When button rises, be positioned at the 9th reflecting surface 32-1 and the tenth reflecting surface 34-2 be positioned at below stationary housing 34 on key axle 32 and stagger completely, incident ray can not be reflected by it, and light path is cut off.
Described the 8th reflecting surface 34-2 be positioned at below set casing 34, it is the plane of inclination 45 degree, also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it also can be the compound curved surface formed by multiple; It is by the collimate light of incidence, toward the direction injection of left side level after collimation.Described the 11 reflecting surface 34-3 be positioned at below set casing 34, it is the plane of inclination 45 degree, also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it also can be the compound curved surface formed by multiple; It is by the collimate light of incidence, and assemble toward below, the light after convergence focuses on the SMD PT 18 below it.The 8th described reflecting surface is coupled with the 11 reflecting surface light path by the reflection of the 9th reflecting surface and the tenth reflecting surface, and the 8th described reflecting surface and the 9th reflecting surface and the tenth reflecting surface and the 11 reflecting surface are arranged relative to key axle Central Symmetry, also can be asymmetric setting.
The 9th reflecting surface 32-1 on key axle 32 described in this specific embodiments, be positioned at the reflecting surface of the 8th reflecting surface 34-2 below set casing 34 and other position, it is all high reflectance surface, its reflection coefficient is more than 80%, described high reflectance surface, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment four
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its reflecting surface controlling key switch can integrate with keycap, and its path channels can be made up of the 12 reflecting surface 41-1 of the free form surface be positioned at below keycap and free form surface the 13 reflecting surface 44-2 be positioned on upper set casing.
The 12 reflecting surface 41-1 controlling key switch is arranged on the below of keycap by specific embodiments 4, and key axle 42 does not arrange reflecting surface, and its switch control rule principle as shown in Figure 9 and Figure 10.Fig. 9 is the profile of this specific embodiments along B-B direction in Fig. 1, and its button is in the state loosened.Figure 10 is the index path of this specific embodiments along B-B directional profile in Fig. 1, and its button is in the state pressed down.The control principle of its key switch is: when button pressed, the 12 reflecting surface 41-1 be positioned at below keycap 41 just in time aligns with the 13 reflecting surface 44-2 be positioned on upper set casing 44, from the light that SMD IR pipe 17 sends, the collimation injection of backward the right is reflected through the 12 reflecting surface 41-1, the light of injection is down transferred through the 13 reflecting surface 44-2 and assembles again, light after convergence focuses on SMD PT pipe 18, thus triggering SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.When button loosen, spring-return to original position time, the 12 reflecting surface 41-1 be positioned at below keycap 41 staggers completely with the 13 reflecting surface 44-2 be positioned on set casing 44, light can not be assembled by the 13 reflecting surface 44-2, thus can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.
Described the 12 reflecting surface 41-1 be positioned at below keycap 41, and the 13 reflecting surface 44-2 be positioned on set casing 44, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be inclination pure-surface, is the compound curved surface of multiple compositions.Described the 12 reflecting surface 41-1 be positioned at below keycap 41, and the 13 reflecting surface 44-2 be positioned on set casing 44, it is high reflectance surface, its reflection coefficient is more than 80%, described high reflectance surface, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.。
Embodiment five
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, free form surface the 15 reflecting surface 54-2 that the control optical routing of the key switch of its specific embodiments is positioned at clinoplain the 14 reflecting surface 51-1 below keycap, be positioned at the collimating lens 55-1 of lower set casing first lead to the hole site and be positioned at set casing forms, and its switch control rule principle as is illustrated by figs. 11 and 12.Figure 11 is the profile of this specific embodiments along B-B direction in Fig. 1, and its button is in the state loosened.Figure 12 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: when button pressed, clinoplain the 14 reflecting surface 51-1 be positioned at below keycap 51 just in time aligns with free form surface the 15 reflecting surface 54-2 be positioned on upper set casing 54, from the light that SMD IR pipe 17 sends, after Fresnel collimating lens 55-1 through being positioned at lower set casing 55 first lead to the hole site collimates, re-shoot on clinoplain the 14 reflecting surface 51-1 that is positioned at below keycap 51, the collimation injection of backward the right is reflected through clinoplain the 14 reflecting surface 51-1, the light of injection is down transferred through free form surface the 15 reflecting surface 54-2 and assembles again, light after convergence focuses on SMD PT pipe 18, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.When button loosen, spring-return to original position time, clinoplain the 14 reflecting surface 51-1 be positioned at below keycap 51 is staggered with free form surface the 15 reflecting surface 54-2 be positioned on set casing 54, light can not be assembled by free form surface the 15 reflecting surface 54-2, thus can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.
Described clinoplain the 14 reflecting surface 51-1 be positioned at below keycap 51, and free form surface the 15 reflecting surface 54-2 be positioned on set casing 54, it is high reflectance surface, its reflection coefficient is more than 80%, described high reflectance surface, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment six
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the control optical routing of the key switch of its specific embodiments is positioned at clinoplain the 16 reflecting surface 61-1 below keycap, be positioned at the collimating lens 65-1 of lower set casing first lead to the hole site, be positioned at clinoplain the 17 speculum 64-2 of set casing and be positioned at lower set casing second lead to the hole site collector lens 65-2 and form, and its switch control rule principle as shown in Figure 13 and Figure 14.Figure 13 is the profile of this specific embodiments along B-B direction in Fig. 1, its state loosened for button is in.Figure 14 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: when button pressed, clinoplain the 16 reflecting surface 61-1 be positioned at below keycap 61 just in time aligns with clinoplain the 17 reflecting surface 64-2 be positioned on upper set casing 64, from the light that SMD IR pipe 17 sends, after Fresnel collimating lens 65-1 through being positioned at lower set casing 65 first lead to the hole site collimates, re-shoot on clinoplain the 16 reflecting surface 61-1 that is positioned at below keycap 61, the collimation injection of backward right side is reflected through clinoplain the 16 reflecting surface 61-1, the light of injection is again after being positioned at the reflection of clinoplain the 17 reflecting surface 64-2 on set casing 64, light beam is down transferred, then assembled by the Fresnel light condensing lens 65-2 being positioned at lower another the second lead to the hole site of set casing 65, light after convergence focuses on SMD PT pipe 18, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.When button loosen, spring-return to original position time, clinoplain the 16 reflecting surface 61-1 be positioned at below keycap 61 staggers completely with clinoplain the 17 reflecting surface 64-2 be positioned on set casing 64, light can not be transferred by clinoplain reflecting surface 64-2, thus can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.
Described clinoplain the 16 reflecting surface 61-1 be positioned at below keycap 61, and clinoplain the 17 reflecting surface 64-2 be positioned on set casing 64, it is oblique 45 degree of reflectings surface, high reflectance surface, its reflection coefficient is more than 80%, described high reflectance surface, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment seven
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, first refractive prism 75-2 of the free form surface that the eighteen incompatibilities of the free form surface that the control optical routing of the key switch of its specific embodiments is positioned at below keycap are penetrated face 71-1 and are positioned at lower set casing second lead to the hole site forms, and its switch control rule principle as shown in Figure 15 and Figure 16.Figure 15 is the profile of this specific embodiments along B-B direction in Fig. 1, its state loosened for button is in.Figure 16 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: when button pressed, the eighteen incompatibilities being positioned at the free form surface below keycap 71 are penetrated face 71-1 and are just in time aligned with the first refractive prism 75-2 of the free form surface being positioned at lower set casing 75 lead to the hole site, from the light that SMD IR pipe 17 sends, after the first through hole being positioned at lower set casing 75, the eighteen incompatibilities inciding the free form surface be positioned at below keycap 71 are penetrated on the 71-1 of face, eighteen incompatibilities are penetrated face 71-1 and are carried out collimating and transferring by incident ray, toward the injection of right level, the light of injection carries out total reflection convergence through the first refractive prism 75-2 of the free form surface being positioned at lower set casing 75 lead to the hole site again, and toward below turnover, light after convergence focuses on SMD PT pipe 18, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.When button loosen, spring-return to original position time, the eighteen incompatibilities being positioned at the free form surface below keycap 71 are penetrated face 71-1 and are staggered completely with the first refractive prism 75-2 of the free form surface being positioned at lower set casing 75 lead to the hole site, light can not be assembled by the first refractive prism 75-2 of free form surface, thus can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.
The eighteen incompatibilities of the free form surface below described keycap 71 penetrate face 71-1, it can be off axis paraboloid mirror, from axle quadratic surface or polynomial surface, it is high reflectance surface, its reflection coefficient is more than 80%, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.First refractive prism 75-2 of the free form surface of set casing 75 second lead to the hole site under described being positioned at, it penetrates 71-1 side, face near eighteen incompatibilities a perpendicular, and it is input face; It penetrates away from eighteen incompatibilities the freely curved face total reflection face that there is an inclination 71-1 side, face, and it can be off axis paraboloid mirror, from axle quadratic surface or polynomial surface; Have the plane of a level below it, it is output face.
Embodiment eight
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the control optical routing of the key switch of its specific embodiments is positioned at first gear mating plate 81-1 below keycap, be positioned on lower set casing 85 first lead to the hole site for collimate and light path of transferring free form surface the second refractive prism 85-1 and be positioned at for transfer and the 3rd refractive prism 85-2 of free form surface of Path of Convergent Rays forms on lower set casing 85 second lead to the hole site, its switch control rule principle is as shown in Figure 17 and Figure 18.The state of its key switch conducting and disconnection is arranged conversely, and it is in off-state for light path when light path when button loosens is in conducting state, button pressed.
Figure 17 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 18 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned on lower set casing 85 for collimate and the second refractive prism 85-1 of free form surface of light path of transferring is positioned on lower set casing 85 for transfer and the 3rd refractive prism 85-2 of free form surface of Path of Convergent Rays aims at mutually with same, when button loosens, light barrier 81-1 below keycap 81 does not keep off in the light path between free form surface refractive prism 85-1 and free form surface refractive prism 85-2, from the light that SMD IR pipe 17 sends, after luxuriant and rich with fragrance alunite face below the second refractive prism 85-1 of free form surface, collimated incident is on the fully reflecting surface of the second refractive prism 85-1 inclined upward of free form surface, after the turnover of its fully reflecting surface, perpendicular injection on the right of it, because light barrier 81-1 does not stop light, the light that perpendicular exports on the right of the second refractive prism 85-1 of free form surface being arranged in equally lower set casing 85 for transferring and the 3rd refractive prism 85-2 of free form surface of Path of Convergent Rays to opposite side, after the fully reflecting surface turnover of its inclined upward, converge on SMD PT pipe 18 by the Fresnel surface below it again, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.When button pressed, the first gear mating plate 81-1 be positioned at below keycap 81 moves down, and the light between the second refractive prism 85-1 of free form surface and the 3rd refractive prism 85-2 of free form surface blocks by completely.Can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
First gear mating plate 81-1 below described keycap 81, it is the material of black light-absorbing, and itself and keycap adopt the method injection mo(u)lding of double-shot moulding.Under described being positioned on set casing 85 for collimate and the first refractive prism 85-1 of free form surface of light path of transferring is positioned on lower set casing 85 for transferring and the second refractive prism 85-2 of free form surface of Path of Convergent Rays with same, the plane of inclination is, even Fresnel surface below it above it.
Embodiment nine
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the control optical routing of the key switch of its specific embodiments is positioned at second gear mating plate 91-1 below keycap, be positioned on set casing 94 for collimate and light path of transferring the 19 reflecting surface 94-1 and be positioned at equally on upper set casing 94 for transfer and the 20 reflecting surface 94-2 of Path of Convergent Rays forms.Its switch control rule principle as illustrated in figures 19 and 20.The state of its key switch conducting and disconnection is arranged conversely, and it is in off-state for light path when light path when button loosens is in conducting state, button pressed.
Figure 19 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 20 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned on set casing 94 for collimate and the 19 reflecting surface 94-1 of light path of transferring is positioned on upper set casing 94 for transfer and the 20 reflecting surface 94-2 of Path of Convergent Rays aims at mutually with same, when button loosens, the second gear mating plate 91-1 be positioned at below keycap 91 does not block the light path of the 19 reflecting surface 94-1 and the 20 reflecting surface 94-2, from the light that SMD IR pipe 17 sends, through being positioned on set casing 94 for collimate and light path of transferring the 19 reflecting surface 94-1 reflect after, light collimates injection to the right, because second gear mating plate 91-1 does not stop light, the light reflected back from the 19 speculum 94-1 reenters and is mapped to being positioned at equally upper set casing 94 for transferring and the 20 speculum 94-2 of Path of Convergent Rays of opposite side, after reflection, finally converge on the SMD PT pipe 18 of below, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.And when button pressed, the second gear mating plate 91-1 be positioned at below keycap 91 moves down, the light between the 19 speculum 94-1 and the 20 speculum 94-2 blocks by completely.Can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
Light barrier 91-1 below described keycap 91, it is the material of black light-absorbing, and itself and keycap adopt the method injection mo(u)lding of double-shot moulding.Described be positioned on set casing 94 for collimate and light path of transferring the 19 reflecting surface 94-1 and be positioned at equally on upper set casing 94 for transferring and the 20 reflecting surface 94-2 of Path of Convergent Rays, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be inclination pure-surface, for the compound curved surface of multiple compositions, it is high reflectance surface, its reflection coefficient is more than 80%, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment ten
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the control optical routing of the key switch of its specific embodiments is positioned at third gear mating plate 101-1 below keycap, be positioned on lower set casing 105 first lead to the hole site for collimate and light path of transferring free form surface the 4th refractive prism 105-1 and be positioned at for transfer and free form surface the 21 reflecting surface 104-2 of Path of Convergent Rays forms on upper set casing 104, its switch control rule principle is as shown in figure 21 and figure.The state of its key switch conducting and disconnection is arranged conversely, and when when namely button loosens, light path is in conducting state, button pressed, light path is in off-state.
Figure 21 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 22 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned on lower set casing 105 for collimate and light path of transferring free form surface the 4th refractive prism 105-1 be positioned on upper set casing 104 for transfer and the 21 reflecting surface 104-2 of free form surface of Path of Convergent Rays aims at mutually, when button loosens, the third gear mating plate 101-1 be arranged in below keycap 101 does not keep off the light path at the 4th refractive prism 105-1 of free form surface and the 21 reflecting surface 104-2 of free form surface, from the light that SMD IR pipe 17 sends, through being positioned on lower set casing 105 for collimate and light path of transferring free form surface the 4th refractive prism 105-1 above fully reflecting surface reflection after, light collimates injection to the right from the perpendicular on the right of it, because third gear mating plate 101-1 does not stop light, the light reflected back from the 4th refractive prism 105-1 of free form surface being positioned at upper set casing 104 for transferring and the 21 reflecting surface 104-2 of free form surface of Path of Convergent Rays to opposite side, after reflection, converge on the SMD PT pipe 18 of below, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.And when button pressed, the third gear mating plate 101-1 be positioned at below keycap 101 moves down, the light between the 3rd refractive prism 105-1 of free form surface and the 21 reflecting surface 104-2 of free form surface blocks by completely.Can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
Third gear mating plate 101-1 below described keycap 101, it is the material of black light-absorbing, and itself and keycap adopt the method injection mo(u)lding of double-shot moulding.Under described being positioned on set casing 105 for collimate and the 3rd refractive prism 105-1 of free form surface of light path of transferring, its fully reflecting surface are the inclination curved surface of top, it is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be inclination pure-surface, is the compound curved surface of multiple compositions.Described to be positioned on set casing 104 for transferring and the 21 reflecting surface 104-2 of free form surface of Path of Convergent Rays, it is from the parabola of axle, from axle quadratic surface or for polynomial surface, it is high reflectance surface, its reflection coefficient is more than 80%, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment 11
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the control optical routing of the key switch of its specific embodiments is positioned at fourth gear mating plate 111-1 below keycap, be positioned on lower set casing 115 first lead to the hole site for collimate and light path of transferring free form surface the 5th refractive prism 115-1 and be positioned at equally on lower set casing 115 second lead to the hole site for transfer and the 6th refractive prism 115-2 of free form surface of Path of Convergent Rays forms, its switch control rule principle as shown in figure 23 and figure 24.The state of its key switch conducting and disconnection is arranged conversely, and when when namely button loosens, light path is in conducting state, button pressed, light path is in off-state.
Figure 23 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 24 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned on lower set casing 115 for collimate and the 5th refractive prism 115-1 of free form surface of light path of transferring is positioned on lower set casing 115 for transfer and the 6th refractive prism 115-2 of free form surface of Path of Convergent Rays aims at mutually with same, when button loosens, fourth gear mating plate 111-1 below keycap 111 does not keep off between the 5th refractive prism 115-1 of free form surface and the light path of the 6th refractive prism 115-2 of free form surface, from the light that SMD IR pipe 17 sends, through being positioned on lower set casing 115 for collimate and light path of transferring free form surface the 5th refractive prism 115-1 above fully reflecting surface reflection after, light collimates injection to the right from the perpendicular on the right of it, because fourth gear mating plate 111-1 does not stop light, the light reflected back from the 5th refractive prism 115-1 of free form surface reenters and is mapped to being arranged in equally lower set casing 115 for transferring and the 6th refractive prism 115-2 of free form surface of Path of Convergent Rays of opposite side, after its total reflection camber reflection, finally converge on the SMD PT pipe 18 of below, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.And when button pressed, the fourth gear mating plate 111-1 be positioned at below keycap 111 moves down, the light between the 5th refractive prism 115-1 of free form surface and the 6th refractive prism 115-2 of free form surface blocks by completely.Can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
Fourth gear mating plate 111-1 below described keycap 111, it is the material of black light-absorbing, and itself and keycap adopt the method injection mo(u)lding of double-shot moulding.Under described being positioned on set casing 115 for collimate and light path of transferring free form surface the 5th refractive prism 115-1 and be positioned at equally on lower set casing 115 for transferring and the 6th refractive prism 115-2 of free form surface of Path of Convergent Rays, inclination curved surface above it is all off axis paraboloid mirrors, free form surface from axle 2 curved surfaces or polynomial surface, it also can be inclination pure-surface, is the compound curved surface of multiple compositions.
Embodiment 12
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the control optical routing of the key switch of its specific embodiments be positioned at the 22 reflecting surface 121-1 of the clinoplain below keycap and clinoplain the 23 reflecting surface 121-2, be positioned on lower set casing 125 first lead to the hole site for collimate Fresnel Lenses 125-1, be positioned on lower set casing 125 second lead to the hole site and form for the Fresnel Lenses 125-2 of optically focused and the fifth gear mating plate 126-1 be positioned on pcb board (printed circuit board (PCB)) equally.Its switch control rule principle as illustrated in figs. 25 and 26.The state of its key switch conducting and disconnection is arranged conversely, and when when namely button loosens, light path is in conducting state, button pressed, light path is in off-state.
Figure 25 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 26 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: when button loosens, when spring-return is to original position, be positioned at the fifth gear mating plate 126-1 on below pcb board (printed circuit board (PCB)) 126, do not have to keep off between the 22 reflecting surface 121-1 of clinoplain below keycap and the 23 reflecting surface 121-2 of clinoplain, from the light that SMD IR pipe 17 sends, after being positioned at lower set casing 125 collimate for the Fresnel Lenses 125-1 that collimates, incide on the 22 reflecting surface 121-1 of the clinoplain below keycap, light is transferred to the right after reflection, reenter and be mapped to opposite side, be positioned at the 23 reflecting surface 121-2 of the clinoplain below keycap equally, after secondary reflection again, light incides the light-focusing Fresnel lens 125-2 being arranged in lower set casing 125 downwards, finally converge on the SMD PT pipe 18 below it, thus trigger generation current in SMD PT pipe 18, the circuit be attached thereto is in conducting state.
And when button pressed, keycap together with clinoplain the 22 reflecting surface 121-1 and the 23 reflecting surface 121-2 of clinoplain move down, at this moment the fifth gear mating plate 126-1 on pcb board 126 by the 22 reflecting surface 121-1 and the 23 reflecting surface 121-2 between light block completely, light is not received in SMD PT pipe 18, can not trigger current, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
The described fifth gear mating plate 126-1 be positioned on pcb board 126, it is the material of black light-absorbing, and it is fixed on pcb board by the method for buckle.Described is positioned at the 22 reflecting surface 121-1 of the clinoplain below keycap and the 23 reflecting surface 121-2 of clinoplain, it is high reflectance surface, its reflection coefficient is more than 80%, and it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment 13
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the control optical routing of the key switch of its specific embodiments is positioned at the first right-angle prism 131-1 below keycap and the second right-angle prism 131-2, be positioned on lower set casing 135 for collimate Fresnel Lenses 135-1, be positioned on lower set casing 135 and form for the Fresnel Lenses 135-2 of optically focused and the sixth gear mating plate 136-1 be positioned on pcb board (printed circuit board (PCB)) equally.Its switch control rule principle is as shown in Figure 27 and Figure 28.The state of its key switch conducting and disconnection is arranged conversely, and when when namely button loosens, light path is in conducting state, button pressed, light path is in off-state.
Figure 27 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 28 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: when button loosens, when spring-return is to original position, be positioned at the sixth gear mating plate 136-1 on below pcb board (printed circuit board (PCB)) 136, between the first right-angle prism 131-1 kept off below keycap and the second right-angle prism 131-2, from the light that SMD IR pipe 17 sends, after being positioned at lower set casing 135 collimate for the Fresnel Lenses 135-1 that collimates, reenter the first right-angle prism 131-1 be mapped to below keycap, after the reflective surface above it, light is transferred to the right, incide opposite side, be arranged in the second right-angle prism 131-2 below keycap equally, after the reflecting surface above it again secondary reflection, the light-focusing Fresnel lens 135-2 of lower set casing 135 is arranged in below light directive, last convergence of rays is on the SMD PT pipe 18 of below, thus trigger generation current in SMD PT pipe 18, the circuit be attached thereto is in conducting state.
And when button pressed, keycap moves down together with the first right-angle prism 131-1 and the second right-angle prism 131-2, light between first right-angle prism 131-1 and the second right-angle prism 131-2 blocks by sixth gear mating plate 136-1 on pcb board 136 completely, light is not received in SMD PT pipe 18, can not trigger current, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
The described sixth gear mating plate 136-1 be positioned on pcb board 136, it is the material of black light-absorbing, and it is fixed on pcb board by the method for buckle.Described be positioned at the first right-angle prism 131-1 below keycap and the second right-angle prism 131-2, above it, be the reflecting surface of clinoplain.
Embodiment 14
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, the control optical routing of the key switch of its specific embodiments is positioned at the 24 reflecting surface 141-1 of the free form surface below keycap and the 25 reflecting surface 141-2 of free form surface and the 7th light barrier 146-1 be positioned on pcb board (printed circuit board (PCB)) forms.Its switch control rule principle as shown in Figure 29 and Figure 30.The state of its key switch conducting and disconnection is arranged conversely, and when when namely button loosens, light path is in conducting state, button pressed, light path is in off-state.
Figure 29 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 30 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: when button loosens, when spring-return is to original position, be positioned at the 7th light barrier 146-1 on below pcb board (printed circuit board (PCB)) 146, do not have to keep off between the 24 reflecting surface 141-1 of free form surface below keycap and the 25 reflecting surface 141-2 of free form surface, from the light that SMD IR pipe 17 sends, incide on the 24 reflecting surface 141-1 of the free form surface below keycap, light is collimated and directive right after reflection, incide opposite side, be positioned on the 25 reflecting surface 141-2 of the free form surface below keycap equally, after secondary reflection again, transfer below light directive and assemble, finally focus on the SMD PT pipe 18 of below, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.And when button pressed, keycap moves down together with the 24 reflecting surface 141-1 of free form surface and the 25 reflecting surface 141-2 of free form surface, light between 24 reflecting surface 141-1 of free form surface and the 25 reflecting surface 141-2 of free form surface blocks by the 7th light barrier 146-1 on pcb board 146 completely, light is not received in SMD PT pipe 18, can not trigger current, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
Described the 7th light barrier 146-1 be positioned on pcb board 146, it is the material of black light-absorbing, and it is fixed on pcb board by the method for buckle.Described is positioned at the 24 reflecting surface 141-1 of the free form surface below keycap and the 25 reflecting surface 141-2 of free form surface, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be inclination pure-surface, for the compound curved surface of multiple compositions, it is high reflectance surface, its reflection coefficient is more than 80%, and it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment 15
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its SMD IR pipe 17 can be vertically placed in set casing 154, the control principle of the key switch of specific embodiments is basically identical with the scheme specifically implementing, just in this specific embodiments, SMD IR pipe 17 is vertically placed in upper set casing 154, and is collimated by a Fresnel collimating lens 154-2.Its optical routing be arranged at set casing position collimation Fresnel Lenses 154-2, be positioned at the 26 reflecting surface 152-1 on key axle and the 27 reflecting surface 154-3 of free form surface that is positioned at below set casing 154 and form.
The control principle of its key switch is as shown in Figure 31 and Figure 32, state when it is button pressed, conducting light paths, wherein Figure 31 is the index path along A-A section in Fig. 1, Figure 32 is the index path upwards watching upper set casing 154 and key axle 152 in Fig. 1 along arrow T direction, and it is corresponding with the index path along A-A section of Figure 31.Its SMD IR pipe 17 is for being vertically placed in upper set casing 154, from the light that the center P point of SMD IR pipe 17 sends, after collimation Fresnel Lenses 154-2 through being positioned at set casing position collimates, incide on the 26 reflecting surface 152-1 be positioned at below key axle 152 toward the direction at Jian Zhou 152 center.When button pressed is to 1.85mm, the 26 reflecting surface 152-1 be positioned on key axle 152 just in time aims at the collimation Fresnel Lenses 154-2 being positioned at set casing 154 position completely, and its collimated ray of incidence being come, reflects.After the 26 reflecting surface 152-1 below key axle 152 reflects, light path after reflection is shown in shown in Figure 31, it incides on the 27 reflecting surface 154-3 of opposite side below set casing 154, incident ray carries out assembling and transferring by the 27 reflecting surface 154-3 again, finally converge on the Q point at SMD PT pipe 18 center being positioned at pcb board, thus circuits for triggering conducting.When button loosen, spring-return to original position time, key axially moves, the reflecting surface 152-1 below key axle 152 is driven to move up together, the 26 reflecting surface 152-1 be now positioned at below key axle 152 staggers completely with the collimation Fresnel Lenses 154-2 being positioned at set casing 154 position, light path is cut off, SMD PT pipe 18 does not have trigger current, and connected circuit is in off-state.
The 27 reflecting surface 154-3 being positioned at the free form surface of opposite side below set casing 154 described in this specific embodiments, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be inclination pure-surface, for the compound curved surface of multiple compositions, its reflection coefficient is more than 80%, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.。
Embodiment 16
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its SMD IR pipe 17 can be vertically placed in set casing, in specific embodiment 16 the control optical routing of the key switch of scheme be positioned at the 8th light barrier 161-1 below keycap, be positioned at set casing is used for collimated light path collimation Fresnel Lenses 164-1 and be positioned on lower set casing 165 for transfer and the 7th refractive prism 165-2 of free form surface of Path of Convergent Rays forms.Its switch control rule principle as shown in figs. 33 and 34.The state of its key switch conducting and disconnection is arranged conversely, and it is in off-state for light path when light path when button loosens is in conducting state, button pressed.
Figure 33 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 34 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned on set casing 164 for the collimation Fresnel Lenses 164-1 of collimated light path be positioned on lower set casing 165 for transfer and the 7th refractive prism 165-2 of free form surface of Path of Convergent Rays aims at mutually, when button loosens, the 8th light barrier 161-1 below keycap 161 does not keep off in the light path between collimation Fresnel Lenses 164-1 and the 7th refractive prism 165-2 of free form surface, from the light that the SMD IR pipe 17 being vertically placed on upper set casing position sends, after collimation Fresnel Lenses 164-1 collimation, perpendicular injection on the right of it, because the 8th light barrier 161-1 does not stop light, the light that perpendicular exports on the right of collimation Fresnel Lenses 164-1 to set casing 165 under being arranged in of opposite side for transferring and the 7th refractive prism 165-2 of free form surface of Path of Convergent Rays, after the fully reflecting surface turnover of its inclined upward, converge on SMD PT pipe 18 by the focusing Fresnel surface below it again, thus trigger SMD PT pipe 18 generation current, the circuit be attached thereto is in conducting state.When button pressed, the 8th light barrier 161-1 be positioned at below keycap 161 moves down, its by collimation Fresnel Lenses 164-1 and free form surface the 7th refractive prism 165-2 between light block completely.Can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
The 8th light barrier 161-1 below described keycap 161, it is the material of black light-absorbing, and itself and keycap adopt the method injection mo(u)lding of double-shot moulding.Under described being positioned on set casing 165 for transferring and the 7th refractive prism 165-2 of free form surface of Path of Convergent Rays, being the plane of inclination above it, is Fresnel surface below it.
Embodiment 17
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its SMD IR pipe 17 can be vertically placed in set casing, in specific embodiment 17 the control optical routing of the key switch of scheme be positioned at the 9th light barrier 171-1 below keycap, be positioned at set casing is used for collimated light path collimation Fresnel Lenses 174-1 and be positioned at set casing 174 for transfer and second eighteen incompatibilities of free form surface of Path of Convergent Rays are penetrated face 174-2 and formed.Its switch control rule principle is as shown in Figure 35 and Figure 36.The state of its key switch conducting and disconnection is arranged conversely, and it is in off-state for light path when light path when button loosens is in conducting state, button pressed.
Figure 35 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 36 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned on set casing 174 for the collimation Fresnel Lenses 174-1 of collimated light path be positioned on upper set casing 174 for transfer and second eighteen incompatibilities of free form surface of Path of Convergent Rays are penetrated face 174-2 and mutually aimed at, when button loosens, the 9th light barrier 171-1 below keycap 171 does not keep off and penetrates in the light path between the 174-2 of face in the second eighteen incompatibilities of collimation Fresnel Lenses 174-1 and free form surface, from the light that the SMD IR pipe 17 being vertically placed on upper set casing position sends, after collimation Fresnel Lenses 174-1 collimation, perpendicular injection on the right of it, because the 9th light barrier 171-1 does not stop light, being arranged in upper set casing 174 for transfer and second eighteen incompatibilities of free form surface of Path of Convergent Rays penetrate face 174-2 from the light of collimation Fresnel Lenses 174-1 injection to opposite side, after the convergence of its reflecting surface and turnover, last convergence of rays is on SMD PT pipe 18, thus trigger generation current in SMD PT pipe 18, the circuit be attached thereto is in conducting state.When button pressed, the 9th light barrier 171-1 be positioned at below keycap 171 moves down, and the light that the second eighteen incompatibilities of Fresnel Lenses 174-1 and free form surface are penetrated between the 174-2 of face blocks by completely.Can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
Described the 9th light barrier 171-1 be positioned at below keycap 171, it is the material of black light-absorbing, and itself and keycap adopt the method injection mo(u)lding of double-shot moulding.Described to be positioned on set casing 174 for transfer and second eighteen incompatibilities of free form surface of Path of Convergent Rays penetrate face 174-2, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it also can be inclination pure-surface, for the compound curved surface of multiple compositions, it is high reflectance surface, its reflection coefficient is more than 80%, and it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment 18
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its SMD IR pipe 17 can be vertically placed in set casing, in specific embodiment 18 the control optical routing of the key switch of scheme be positioned at the tenth light barrier 181-1 below keycap, be positioned at set casing is used for collimated light path collimation Fresnel collimating lens 184-1 and be positioned on lower set casing 185 second lead to the hole site for transfer and the 8th refractive prism 185-2 of free form surface of Path of Convergent Rays forms.Its switch control rule principle is as shown in Figure 37 and Figure 38.The state of its key switch conducting and disconnection is arranged conversely, and it is in off-state for light path when light path when button loosens is in conducting state, button pressed.
Figure 37 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 38 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned on set casing 184 for the collimation Fresnel Lenses 184-1 of collimated light path be positioned on lower set casing 185 for transfer and the 8th refractive prism 185-2 of free form surface of Path of Convergent Rays aims at mutually, when button loosens, the tenth light barrier 181-1 below keycap 181 does not keep off in the light path between collimation Fresnel Lenses 184-1 and the 8th refractive prism 185-2 of free form surface, from the light that the SMD IR pipe 17 being vertically placed on upper set casing position sends, after collimation Fresnel Lenses 184-1 collimation, perpendicular injection on the right of it, because the tenth light barrier 181-1 does not stop light, on the right of collimation Fresnel Lenses 184-1 the light of perpendicular injection to set casing 185 under being arranged in of opposite side for transferring and the tenth refractive prism 185-2 of free form surface of Path of Convergent Rays, after the turnover of the freely curved face total reflection face of its inclined upward and assembling, last convergence of rays is on the SMD PT pipe 18 of below, thus trigger generation current in SMD PT pipe 18, the circuit be attached thereto is in conducting state.When button pressed, the tenth light barrier 181-1 be positioned at below keycap 181 moves down, and the light between the 8th refractive prism 185-2 of Fresnel Lenses 184-1 and free form surface blocks by completely.Can not trigger current in SMD PT pipe 18, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
The tenth light barrier 181-1 below described keycap 181, it is the material of black light-absorbing, and itself and keycap adopt the method injection mo(u)lding of double-shot moulding.Under described being positioned on set casing 185 for transferring and the 8th refractive prism 165-2 of free form surface of Path of Convergent Rays, the total reflection curved surface of its inclined upward be tilt off axis paraboloid mirror, from axle 2 curved surfaces or be polynomial surface, also can be inclination pure-surface, or be the compound curved surface of multiple compositions, be plane below it.
Embodiment 19
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its SMD PT pipe 18 can be vertically placed in set casing 194, in specific embodiment 19 control principle of the key switch of scheme and specific embodiment two basically identical, just in this specific embodiments, SMD PT pipe 18 is vertically placed in upper set casing 194, and places a light-focusing Fresnel lens 194-3 in its front and assemble.The light-focusing Fresnel lens 194-3 that its optical routing is positioned over the 29 reflecting surface 194-2 of the free form surface of set casing position, the 30 reflecting surface 192-1 be positioned on key axle, be positioned at the 31 reflecting surface 192-2 of opposite side on key axle and be positioned at set casing 194 opposite side forms.
Figure 39 and Figure 40 presses down 1.85mm for its key switch, be in index path during conducting state, its Figure 39 is the index path along D-D section in Fig. 1, Figure 40 is the index path upwards watching upper set casing 194 and key axle 192 in Fig. 1 along arrow T direction, and it is corresponding along the index path of A-A section with upper figure.The control principle of its key switch is: as button pressed 1.85mm, from the light that the center P point of SMD IR pipe 17 sends, incide after the first through hole 15-1 of lower set casing on the 29 reflecting surface 194-2 be positioned at below upper set casing 194, the 29 described reflecting surface 194-2, it is free form surface, it can be off axis paraboloid mirror, from axle 2 curved surfaces or polynomial surface, it is by the collimate light of incidence, toward the direction injection of left side level after collimation.The 30 reflecting surface 192-1 be positioned on key axle 192 just in time aims at the 29 reflecting surface 194-2 be positioned at below set casing 194 completely, and its collimated ray of incidence being come, reflects.By the light that the 30 reflecting surface 192-1 reflects, as shown in Figure 40 (arrow T direction being looked upper set casing 194 and X-type shape key axle 192 in Fig. 1), light is transferred clockwise 90 degree and is reflected to opposite side, then incide on another the 31 reflecting surface 192-2 of being positioned at equally on key axle 192, after again reflecting turnover, incide the light-focusing Fresnel lens 194-3 being arranged in set casing 194 opposite side more to the right, after light-focusing Fresnel lens 194-3 assembles, light finally focuses on the Q point at SMD PT pipe 18 center being vertically placed on set casing 194, thus circuits for triggering conducting.
When button loosens, when spring-return is to original position, key axially moves, the 30 reflecting surface 192-1 on key axle 192 and the 31 reflecting surface 192-2 is driven to move up together, the 30 reflecting surface 192-1 be positioned on key axle 192 staggers completely with the 29 reflecting surface 194-2 be positioned at below set casing 194, the 31 reflecting surface 192-2 be simultaneously positioned on key axle 192 also staggers completely with the light-focusing Fresnel lens 194-3 being positioned at upper set casing 194 opposite side, now light path is cut off, SMD PT pipe 18 do not have trigger current, the circuit be connected is in off-state.
The 30 reflecting surface 192-1 on key axle 192 described in this specific embodiments and the 31 reflecting surface 192-2, it is high reflectance surface, and its reflection coefficient is more than 80%.The reflecting surface 194-2 be positioned at below set casing 194 described in this specific embodiments, it is also high reflectance surface, and its reflection coefficient is more than 80%, and described high reflectance is surperficial, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
Embodiment 20
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its SMD PT pipe 18 can be vertically placed in set casing 204, and in specific embodiment 20, the control optical routing of the key switch of scheme is positioned at the 11 light barrier 201-1 below keycap, is positioned at and lower set casing 205 is used for collimate and the 9th refractive prism 205-1 of free form surface of turnover light path and being positioned on set casing 204 of the 11 light barrier opposite side form for the light-focusing Fresnel lens 204-1 of Path of Convergent Rays.Its switch control rule principle is as shown in Figure 41 and Figure 42.The state of its key switch conducting and disconnection is arranged conversely, and it is in off-state for light path when light path when button loosens is in conducting state, button pressed.
Figure 41 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 42 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned on lower set casing 205 for collimate and the 9th refractive prism 205-1 of free form surface of light path of transferring aims at mutually with the light-focusing Fresnel lens 204-1 that described 11 light barrier opposite side is positioned at for Path of Convergent Rays on upper set casing 204, when button loosens, the 11 light barrier 201-1 below keycap 201 does not keep off in the light path between free form surface the 9th full refractive prism 205-1 and light-focusing Fresnel lens 204-1, be positioned at the light that the SMD IR pipe 17 on pcb board 16 sends from below, after the 9th refractive prism 205-1 of free form surface collimates and transfers, perpendicular collimation injection on the right of it, because the 11 light barrier 201-1 does not stop light, the light that perpendicular collimation penetrates on the right of the 9th refractive prism 205-1 of free form surface is to the light-focusing Fresnel lens 204-1 be arranged in for Path of Convergent Rays upper set casing 204 of opposite side, finally focus on after assembling on the SMD PT pipe 18 being positioned at equally and upper set casing 204 is vertically placed, thus trigger generation current in SMD PT pipe 18, the circuit be attached thereto is in conducting state.
When button pressed, the 11 light barrier 201-1 be positioned at below keycap 201 moves down, and the light between the 9th refractive prism 205-1 of free form surface and light-focusing Fresnel lens 204-1 blocks by completely.Can not trigger current in the SMD PT pipe 18 of vertical placement, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
The 11 light barrier 201-1 below described keycap 201, it is the material of black light-absorbing, and itself and keycap adopt the method injection mo(u)lding of double-shot moulding.Under described being positioned on set casing 205 for collimating and the 9th refractive prism 205-1 of free form surface of light path of transferring, the total reflection curved surface of its inclined upward be tilt off axis paraboloid mirror, from axle 2 curved surfaces or be polynomial surface, also can be inclination pure-surface, or be the compound curved surface of multiple compositions, be plane below it.
Embodiment 21
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its SMD PT pipe 18 can be vertically placed on the below of keycap 211, the 32 reflecting surface 211-1 of its clinoplain for light path of transferring, light-focusing Fresnel lens 211-2 also can be fixed on below keycap 211, and other 12 light barrier 216-1 can be fixed on the pcb board 216 bottom module.
The control optical routing of the key switch of the scheme of specific embodiment 21 is positioned at clinoplain the 32 reflecting surface 211-1, light-focusing Fresnel lens 211-2 for light path of transferring below keycap, be positioned at the collimation Fresnel Lenses 215-1 that lower set casing 215 first lead to the hole site is used for collimate and the 12 light barrier 216-1 be positioned on pcb board 216 forms.Its key switch control principle is as shown in Figure 43 and Figure 44.The state of its key switch conducting and disconnection is arranged conversely, and it is in off-state for light path when light path when button loosens is in conducting state, button pressed.
Figure 43 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 44 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned at below keycap and be used for the light-focusing Fresnel lens 211-2 of converging ray for clinoplain the 32 reflecting surface 211-1 of light path of transferring below keycap align with same being positioned at, when button loosens, when spring-return is to original position, the 12 light barrier 216-1 bottom button module on pcb board 216 does not keep off between the 32 reflecting surface 211-1 and Fresnel light condensing lens 211-2 of clinoplain, the light sent from SMD IR pipe 17 is through being positioned at after the collimation Fresnel Lenses 215-1 lower set casing 215 first lead to the hole site collimates, incide on the 32 reflecting surface 211-1 of the clinoplain be positioned at below keycap, collimated ray is transferred to the right after reflection, reenter and be mapped in light-focusing Fresnel lens 211-2, finally focus on after assembling on the SMD PT pipe 18 vertically placed, thus trigger generation current in SMD PT pipe 18, the circuit be attached thereto is in conducting state.
When button pressed, light between 32 reflecting surface 211-1 of clinoplain and light-focusing Fresnel lens 211-2 stops by the 12 light barrier 216-1 bottom button module on pcb board 216 completely, being vertically placed in the SMD PT pipe 18 below keycap can not trigger current, and the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
Described the 12 light barrier 216-1 be positioned on pcb board 216, it is the material of black light-absorbing, and it is fixed on pcb board by the method for buckle.Described the 32 reflecting surface 211-1 being positioned at the clinoplain below keycap, it is high reflectance surface, and its reflection coefficient is more than 80%, and it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
The described SMD PT pipe 18 being positioned at the light-focusing Fresnel lens 211-2 below keycap and vertically placing, it can be fixed on below keycap by the method for buckle.
Embodiment 22
The switch module of the computer input apparatus of a kind of super thin reflective involved in the present invention, its SMD PT pipe 18 can be vertically placed on the below of keycap 211, its the 3rd right-angle prism 221-1, light-focusing Fresnel lens 221-2 for light path of transferring also can be fixed on below keycap 221, and other 13 light barrier 226-1 can be fixed on the pcb board 226 bottom module.
In specific embodiment 22, the control optical routing of the key switch of scheme is positioned at the 3rd right-angle prism 221-1, light-focusing Fresnel lens 221-2 for light path of transferring below keycap, is positioned at and lower set casing 225 first lead to the hole site is used for the Fresnel Lenses 225-1 of collimated light path and the 13 light barrier 226-1 be positioned on pcb board 226 and forms.Its switch control rule principle is as shown in Figure 45 and Figure 46.The state of its key switch conducting and disconnection is arranged conversely, and it is in off-state for light path when light path when button loosens is in conducting state, button pressed.
Figure 45 is the index path of this specific embodiments along B-B directional profile in Fig. 1, its state loosened for button is in.Figure 46 is the profile of this specific embodiments along B-B direction in Fig. 1, its state pressed down for button is in.The control principle of its key switch is: be positioned at below keycap and be used for the light-focusing Fresnel lens 221-2 of converging ray for the 3rd right-angle prism 221-1 of light path of transferring below keycap align with same being positioned at, when button loosens, when spring-return is to original position, the 13 light barrier 226-1 bottom button module on pcb board 226 does not keep off between the 3rd right-angle prism 221-1 and light-focusing Fresnel lens 221-2, the light sent from SMD IR pipe 17 is through being positioned at after the collimation Fresnel Lenses 225-1 lower set casing 225 first lead to the hole site collimates, incide the 3rd right-angle prism 221-1 be arranged in below keycap, after its clinoplain total reflection, collimated ray is transferred to the right, reenter and be mapped in light-focusing Fresnel lens 221-2, finally converge on the SMD PT pipe 18 of vertically placement, thus trigger generation current in SMD PT pipe 18, the circuit be attached thereto is in conducting state.
When button pressed, light between 3rd right-angle prism 221-1 and light-focusing Fresnel lens 221-2 stops by the 13 light barrier 226-1 bottom button module on pcb board 226 completely, can not trigger current in the SMD PT pipe 18 of vertical placement, the circuit be attached thereto is in off-state.The control light path of the key switch therefore described in the present embodiment, the state of its conducting and disconnection is completely contrary with the state in specific embodiments 1 ~ 7.
Described the 13 light barrier 226-1 be positioned on pcb board 226, it is the material of black light-absorbing, and it is fixed on the pcb board of below by the method for buckle.The described SMD PT pipe 18 being positioned at the 3rd right-angle prism 221-1, the light-focusing Fresnel lens 221-2 below keycap and vertically placing, it can be fixed on below keycap by the method for buckle.
The top of described 3rd right-angle prism 221-1 is the reflecting surface of clinoplain.
Embodiment 23
Present embodiment discloses a kind of keycap character illuminator coordinating the switch module of the computer input apparatus of super thin reflective to use, its lighting source is the SMD LED (surface-pasted light-emitting diode) be arranged on pcb board, it is single colored chip or the LED for red, green, blue and white polychrome chip, the optics for luminous intensity distribution is had above it, its light that SMD LED19 is sent, carry out luminous intensity distribution, be assigned to the scope of required illumination.The described optics for luminous intensity distribution is positioned at upper set casing 234, and it can be the expanding sheet of trapezoidal reflector, square reflector, free form surface spreadlight lens or the inside doping diffusion particle being used for doing mixed light process.No matter be trapezoidal reflector or square reflector, its reflecting surface is high reflectance surface, and its reflection coefficient is more than 80%, and it can be white or bright silver.Trapezoidal reflector is adopted for the optics of luminous intensity distribution in the present embodiment.
Embodiment 24
Present embodiment discloses a kind of keycap character illuminator coordinating the switch module of the computer input apparatus of super thin reflective to use, its lighting source is the SMD LED (surface-pasted light-emitting diode) be arranged on pcb board, it is single colored chip or the LED for red, green, blue and white polychrome chip, the optics for luminous intensity distribution is had above it, its light that SMD LED19 is sent, carry out luminous intensity distribution, be assigned to the scope of required illumination.
As shown in figure 49, it is in FIG along the profile in C-C direction to the luminous intensity distribution principle of described keycap character illuminator.In figure, the top of SMD LED (surface-pasted light-emitting diode) 19 is a decentered lens 244-1, it is positioned at the top of lower set casing 245, its light sent by SMD LED19, carries out asymmetric light distribution, light secundly, is assigned to the scope of required illumination.Described decentered lens 244-1, its top-surface camber is eccentric, asymmetrical free form surface, and it can solve the illuminated situation of keycap character not directly over light source.
Embodiment 25
Present embodiment discloses a kind of keycap character illuminator coordinating the switch module of the computer input apparatus of super thin reflective to use, its lighting source is the SMD LED (surface-pasted light-emitting diode) be arranged on pcb board, it is single colored chip or the LED for red, green, blue and white polychrome chip, the optics for luminous intensity distribution is had above it, its light that SMD LED19 is sent, carry out luminous intensity distribution, be assigned to the scope of required illumination.
As shown in figure 50, it is in FIG along the profile in C-C direction to the luminous intensity distribution principle of described keycap character illuminator.In figure, the top of SMD LED (surface-pasted light-emitting diode) 19 is a total reflection lens 254-1, and it is positioned at the top of lower set casing 255, its light sent by SMD LED19, carries out luminous intensity distribution.Described total reflection lens 254-1, it is made up of the refracted portion of centre, the total reflection part of outer ring, and it has higher optical efficiency, and it can collect the nearly all light sent from SMD LED19, and optical efficiency can reach more than 80%.
Embodiment 26
Present embodiment discloses a kind of keycap character illuminator coordinating the switch module of the computer input apparatus of super thin reflective to use, its lighting source is the SMD LED (surface-pasted light-emitting diode) be arranged on pcb board, it is single colored chip or the LED for red, green, blue and white polychrome chip, the optics for luminous intensity distribution is had above it, its light that SMD LED19 is sent, carry out luminous intensity distribution, be assigned to the scope of required illumination.
As shown in figure 51, it is in FIG along the profile in C-C direction to the luminous intensity distribution principle of described keycap character illuminator.In figure, the top of SMD LED (surface-pasted light-emitting diode) 19 is the illuminator adopting compound lens 264-1, described compound lens 264-1, its lower surface is zigzag Fresnel surface, it can collect the light of wide-angle, and collimate, reenter after collimation and be mapped on upper surface, its upper surface is convex surface, it is used for luminous intensity distribution, and the light that lower surface collimated incident is come is assigned to required field of illumination by it.As shown in figure 51, it is in FIG along the profile in C-C direction to the luminous intensity distribution principle of this compound lens.In figure, the top of SMD LED (surface-pasted light-emitting diode) 19 is a compound lens 264-1, and it is positioned at the top of lower set casing 265, its light sent by SMD LED19, carries out luminous intensity distribution.
Embodiment 27
Present embodiment discloses a kind of keycap character illuminator coordinating the switch module of the computer input apparatus of super thin reflective to use, its lighting source is the SMD LED (surface-pasted light-emitting diode) be arranged on pcb board, it is single colored chip or the LED for red, green, blue and white polychrome chip, the optics for luminous intensity distribution is had above it, its light that SMD LED19 is sent, carry out luminous intensity distribution, be assigned to the scope of required illumination.
As shown in figure 51, it is in FIG along the profile in C-C direction to the luminous intensity distribution principle of described keycap character illuminator.In the present embodiment 27, the illuminator of keycap character is the additive colo(u)r system adopting diffusion sheet, and its lighting source is the SMD LED of red, green, blue and white polychrome chip.Described keycap character illuminator, as shown in figure 51, it is in FIG to its luminous intensity distribution principle, along the profile in C-C direction.Described SMD LED 19, it is a multi-chip (such as being red, green, blue and white 4 color chip), can sends the surface mount LED of different colours, the diffusion sheet 274-1 that a slice has colour mixture function is placed with above it, the many micron-sized smooth granule proliferations of its inner doping, it is positioned on the top of lower set casing 275, the light of its different colours sent by SMD LED19, carries out colour mixture, reaches the effect of Uniform Illumination keycap character.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (63)

1. the switch module of the computer input apparatus of a super thin reflective, comprise keycap, key axle, spring, upper set casing, lower set casing, pcb board, it is characterized in that, described super thin reflective PKB photoelectric keyboard switch module also comprises a light emitting devices and a light receiving element, path channels is formed by the reflecting surface of at least one between light emitting devices and light receiving element, described reflecting surface, it is integrated in keycap, key axle, on upper set casing or lower set casing, when button pressed or when loosening, moving up and down of part reflecting face makes light path be switched on or cuts off, thus trigger the logical and disconnected of the circuit that connects of light receiving element.
2. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 1, it is characterized in that, described light emitting devices and described light receiving element are all arranged on described pcb board, described lower set casing is provided with the first through hole and the second through hole, and described first through hole is positioned at above described light emitting devices, described second through hole is positioned at above described light receiving element.
3. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 2, it is characterized in that, described path channels comprises the second reflecting surface be positioned at below key axle, and the first reflecting surface be positioned at below stationary housing and the 3rd reflecting surface
From the light that light emitting devices sends, incide on the first reflecting surface below upper set casing after the first through hole on lower set casing, when button pressed, described second reflecting surface on key axle just in time aims at described first reflecting surface be positioned at below set casing, the collimated ray of coming from described first reflecting surface incidence reflects by it, reflection ray incides on described 3rd reflecting surface of opposite side below set casing, incident ray is converged to through the second through hole of lower set casing the light receiving element being positioned at pcb board by described 3rd reflecting surface again, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, key axle and described first reflecting surface move up together, and the second reflecting surface be positioned on key axle staggers with the first reflecting surface be positioned at below set casing, and light path is cut off, and the circuit be connected is in off-state.
4. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 3, is characterized in that,
Described the first reflecting surface be positioned at below set casing is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it also can be pure-surface, or the compound curved surfaces of multiple compositions; Described the 3rd reflecting surface being positioned at opposite side below set casing, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, is the compound curved surfaces of multiple compositions; The first described reflecting surface is coupled with the 3rd reflecting surface light path by the reflection of the second reflecting surface.
5. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 4, is characterized in that, the first described reflecting surface and the second reflecting surface and the 3rd reflecting surface are arranged relative to key axle Central Symmetry, also can be asymmetric setting.
6. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 2, it is characterized in that, described path channels comprises and is positioned at the 5th reflecting surface below key axle and the 6th reflecting surface, and the 4th reflecting surface be positioned at below stationary housing and the 7th reflecting surface
From the light that light emitting devices sends, incide on the 4th reflecting surface below upper set casing after the first through hole on lower set casing, when button pressed, described 5th reflecting surface on key axle just in time aims at described 4th reflecting surface be positioned at below set casing, the collimated ray of coming from described 4th reflecting surface incidence reflects by it, reflection ray incides on described 6th reflecting surface of the opposite side be positioned at equally on key axle, through secondary reflection again, reflection ray to incide below set casing on the 7th reflecting surface described in another, incident ray is converged to through the second through hole of lower set casing the light receiving element being positioned at pcb board by described 7th reflecting surface again, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, key axially moves, key axle and described 5th, the 6th reflecting surface move up together, the 5th reflecting surface be positioned on key axle staggers with the 4th reflecting surface be positioned at below set casing, simultaneously, the 6th reflecting surface be positioned on key axle staggers with the 7th reflecting surface be positioned at below set casing, and light path is cut off, and the circuit be connected is in off-state.
7. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 6, is characterized in that,
Described the 4th reflecting surface be positioned at below set casing is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it also can be pure-surface, or the compound curved surfaces of multiple compositions.Described the 7th reflecting surface being positioned at opposite side below set casing, its reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.The 4th described reflecting surface is coupled with the 7th reflecting surface light path by the reflection of the 5th reflecting surface and the 6th reflecting surface.
8. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 7, it is characterized in that, the 4th described reflecting surface and the 5th reflecting surface and the 6th reflecting surface and the 7th reflecting surface are arranged relative to key axle Central Symmetry, also can be asymmetric setting.
9. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 2, it is characterized in that, described path channels comprises and is positioned at the 9th reflecting surface below key axle and the tenth reflecting surface, be positioned at the 8th reflecting surface below stationary housing and the 11 reflecting surface, and be positioned at the collimating lens of lower set casing first lead to the hole site or/and the condenser lens of the second lead to the hole site
From the light that light emitting devices sends, incide on the 8th reflecting surface below upper set casing after the collimating lens of the first lead to the hole site on lower set casing, when button pressed, described 9th reflecting surface on key axle just in time aims at described 8th reflecting surface be positioned at below set casing, the collimated ray of coming from described 8th reflecting surface incidence reflects by it, reflection ray incides on described tenth reflecting surface of the opposite side be positioned at equally on key axle, through secondary reflection again, reflection ray to incide below set casing on the 11 reflecting surface described in another, the condenser lens of incident ray second lead to the hole site on lower set casing is converged to the light receiving element being positioned at pcb board by described 11 reflecting surface again, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, key axially moves, key axle and described 9th, the tenth reflecting surface move up together, the 9th reflecting surface be positioned on key axle staggers with the 8th reflecting surface be positioned at below set casing, simultaneously, the tenth reflecting surface be positioned on key axle staggers with the 11 reflecting surface be positioned at below set casing, and light path is cut off, and the circuit be connected is in off-state.
10. the switch module of the computer input apparatus of a kind of super thin reflective according to claim 9, is characterized in that,
Described the 8th reflecting surface be positioned at below set casing is the plane of inclination 45 degree, also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it also can be the compound curved surface formed by multiple;
Described the 11 reflecting surface being positioned at opposite side below set casing, its reflecting surface is the plane of inclination 45 degree, also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it also can be the compound curved surface formed by multiple;
The 8th described reflecting surface is coupled with the 11 reflecting surface light path by the reflection of the 9th reflecting surface and the tenth reflecting surface.
The switch module of the computer input apparatus of 11. a kind of super thin reflectives according to claim 10, it is characterized in that, the 8th described reflecting surface and the 9th reflecting surface and the tenth reflecting surface and the 11 reflecting surface are arranged relative to key axle Central Symmetry, also can be asymmetric setting.
The switch module of the computer input apparatus of 12. a kind of super thin reflectives according to claim 2, is characterized in that, described path channels comprises the 12 reflecting surface be positioned at below keycap and the 13 reflecting surface being positioned at set casing,
From the light that light emitting devices sends, incide on the 12 reflecting surface below keycap after the first lead to the hole site on lower set casing, when button pressed, described 12 reflecting surface below keycap just in time aims at described 13 reflecting surface of set casing, the light of coming from described 12 reflecting surface incidence carries out collimating or partly collimating injection by it, the light of injection is down transferred through described 13 reflecting surface and assembles again, light after convergence second through hole on lower set casing focuses on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pull-off spring is returned to original position, the 12 reflecting surface be positioned at below keycap staggers completely with the 13 reflecting surface be positioned on set casing, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 13. a kind of super thin reflectives according to claim 12, it is characterized in that, described the 13 reflecting surface being positioned at the 12 reflecting surface below keycap and being positioned at set casing is all off axis paraboloid mirrors, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions.
The switch module of the computer input apparatus of 14. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprise be positioned at lower set casing first lead to the hole site collimating lens, be positioned at the 14 reflecting surface below keycap and be positioned at free form surface the 15 reflecting surface of set casing
From the light that light emitting devices sends, on the 14 reflecting surface after the collimating lens of the first lead to the hole site on lower set casing below collimated incident to keycap, when button pressed, described 14 reflecting surface below keycap just in time aims at described 15 reflecting surface of set casing, the light of coming from described 14 reflecting surface incidence is carried out collimation injection by it, the light of injection is down transferred through described 15 reflecting surface and assembles again, light after convergence second through hole on lower set casing focuses on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pull-off spring is returned to original position, the 14 reflecting surface be positioned at below keycap staggers completely with the 15 reflecting surface be positioned on set casing, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 15. a kind of super thin reflectives according to claim 14, is characterized in that,
Described the 14 reflecting surface be positioned at below keycap is clinoplain, described the 15 reflecting surface being positioned at set casing is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions.
The switch module of the computer input apparatus of 16. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprise be positioned at lower set casing first lead to the hole site collimating lens, be positioned at the 16 reflecting surface below keycap, be positioned at the 17 speculum of set casing and be positioned at the collector lens composition of lower set casing second lead to the hole site
From the light that light emitting devices sends, on the 16 reflecting surface after the collimating lens of the first lead to the hole site on lower set casing below collimated incident to keycap, when button pressed, described 16 reflecting surface below keycap just in time aims at described 17 reflecting surface of set casing, the light of coming from described 16 reflecting surface incidence is carried out collimation injection by it, the light of injection is down transferred through described 17 reflecting surface again, then after the Fresnel light condensing lens of lower set casing second lead to the hole site is assembled, focus on the light receiving element of pcb board, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, the 16 reflecting surface be positioned at below keycap staggers completely with the 17 reflecting surface be positioned on set casing, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 17. a kind of super thin reflectives according to claim 16, it is characterized in that, describedly be positioned at the 14 reflecting surface below keycap and described the 17 reflecting surface be positioned on set casing is clinoplain, also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, or be the compound curved surfaces of multiple compositions.
The switch module of the computer input apparatus of 18. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprises the eighteen incompatibilities be positioned at below keycap and penetrates face and be positioned at the first refractive prism of lower set casing second lead to the hole site
From the light that light emitting devices sends, after the first through hole on lower set casing, collimated incident is penetrated on face to the eighteen incompatibilities be positioned at below keycap, when button pressed, described eighteen incompatibilities below keycap are penetrated face and are just in time aimed at the first refractive prism being positioned at lower set casing second lead to the hole site, the light sent from light emitting devices carries out collimating or partly collimating and rear injection of transferring by it, the light of injection carries out total reflection convergence through described first refractive prism again, and toward below turnover, ray cast after refractive power is to the light receiving element of pcb board, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, the eighteen incompatibilities be positioned at below keycap are penetrated face and are staggered completely with the first refractive prism being positioned at lower set casing second lead to the hole site, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 19. a kind of super thin reflectives according to claim 18, it is characterized in that, the described eighteen incompatibilities be positioned at below keycap penetrate that face is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions;
Described the first refractive prism being positioned at lower set casing second lead to the hole site, it penetrates side, face near eighteen incompatibilities a perpendicular, and it is input face; It penetrates away from eighteen incompatibilities the freely curved face total reflection face that there is an inclination side, face, and it can be off axis paraboloid mirror, from axle quadratic surface or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions; Have the transmission plane of a level below it, it is output face.
The switch module of the computer input apparatus of 20. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprises the 3rd refractive prism being positioned at first gear mating plate below keycap, being positioned at the second refractive prism on lower set casing first lead to the hole site and being positioned on lower set casing second lead to the hole site, and second, third refractive prism described is all with the promising reflecting curved surface for light refraction;
Described second refractive prism is aimed at mutually with described 3rd refractive prism, when button loosens, through the light that light emitting devices sends, after luxuriant and rich with fragrance alunite face below described second refractive prism, collimated incident is on the fully reflecting surface of described second refractive prism inclined upward, export from perpendicular on the right of described second refractive prism after the turnover of its fully reflecting surface, the light exported is in described 3rd refractive prism of opposite side, after the fully reflecting surface turnover of its inclined upward, converge on the light receiving element of pcb board by the Fresnel surface below it again, thus circuits for triggering conducting,
When button pressed, the first gear mating plate be positioned at below keycap moves down, and the light between described second refractive prism and described 3rd refractive prism blocks by completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 21. a kind of super thin reflectives according to claim 20, is characterized in that,
The top of described second refractive prism and described 3rd refractive prism for be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or be multiple the compound curved surfaces formed, and is Fresnel surface below it.
The switch module of the computer input apparatus of 22. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprises the 20 reflecting surface being positioned at second gear mating plate below keycap, being positioned at the 19 reflecting surface on set casing and being positioned at equally on set casing
Described 19 reflecting surface is aimed at mutually with described 20 reflecting surface, when button loosens, through the light that light emitting devices sends, through being positioned on set casing for collimate and light path of transferring the 19 reflective surface after, the light of collimation injection is down transferred through described 20 reflecting surface again, then converge on the light receiving element of pcb board through lower set casing second through hole, thus circuits for triggering conducting; When button pressed, the second gear mating plate be positioned at below keycap moves down, and the light between described 19 reflecting surface and described 20 reflecting surface blocks by completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 23. a kind of super thin reflectives according to claim 22, is characterized in that,
Described 19 reflecting surface and described 20 reflecting surface be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
The switch module of the computer input apparatus of 24. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprises and is positioned at third gear mating plate below keycap, is positioned on lower set casing first lead to the hole site for the 4th refractive prism of light path of transferring and the 21 reflecting surface that is positioned at for light path of transferring on upper set casing
Described 4th refractive prism is aimed at mutually with described 21 reflecting surface, when button loosens, through the light that light emitting devices sends, after the fully reflecting surface reflection of described 4th refractive prism, the light of refractive power injection is down transferred through described 21 reflecting surface again, then converge on the light receiving element of pcb board through lower set casing second through hole, thus circuits for triggering conducting;
When button pressed, the third gear mating plate be positioned at below keycap moves down, and the light between described 4th refractive prism and described 21 reflecting surface blocks by completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 25. a kind of super thin reflectives according to claim 24, is characterized in that,
The top of described 3rd refractive prism is the fully reflecting surface of inclination curved form, and it is from the parabola of axle, from axle quadratic surface or polynomial surface, and it can be also inclination pure-surface, or is the compound curved surface of multiple compositions, is Fresnel surface below it;
Described 21 reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, and it can be also inclination pure-surface, or be multiple the compound curved surfaces formed.
The switch module of the computer input apparatus of 26. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprises and being positioned at fourth gear mating plate below keycap, being positioned on lower set casing on the first lead to the hole site for collimating and the 5th refractive prism of light path of transferring and the 6th refractive prism that is positioned at equally for light path of transferring on the second lead to the hole site on lower set casing
Described 5th refractive prism is aimed at mutually with described 6th refractive prism, when button loosens, through the light that light emitting devices sends, after the fully reflecting surface reflection of described 5th refractive prism, the light of collimation injection down reflects turnover through the fully reflecting surface of described 6th refractive prism again, converge on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pressed, the fourth gear mating plate be positioned at below keycap moves down, and the light between described 5th refractive prism and described 6th refractive prism blocks by completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 27. a kind of super thin reflectives according to claim 26, is characterized in that,
The top of the described 5th and the 6th refractive prism is the fully reflecting surface of inclination curved form, and it is from the parabola of axle, from axle quadratic surface or polynomial surface, and it can be also inclination pure-surface, or is the compound curved surface of multiple compositions; The below of the described 5th and the 6th refractive prism is Fresnel surface.
The switch module of the computer input apparatus of 28. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprises and is positioned at the 22 reflecting surface below keycap and the 23 reflecting surface, the collimation Fresnel Lenses be positioned on lower set casing first lead to the hole site, the fifth gear mating plate that is positioned at the light-focusing Fresnel lens on lower set casing second lead to the hole site and is positioned on pcb board
Described 22 reflecting surface is aimed at mutually with described 23 reflecting surface, when button loosens, through the light that light emitting devices sends, after being positioned at and lower set casing collimating Fresnel Lenses collimation, incide on described 22 reflecting surface that is positioned at below keycap, light ray bending after reflection, reenter and be mapped to opposite side, be positioned at described 23 reflecting surface below keycap equally, after secondary reflection again, light incides the light-focusing Fresnel lens being arranged in lower set casing downwards, converge on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pressed, the light between described 22 reflecting surface and described 23 reflecting surface blocks by fifth gear mating plate on pcb board completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 29. a kind of super thin reflectives according to claim 28, it is characterized in that, described 22 reflecting surface and the 23 reflecting surface are clinoplain, it also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, or is the compound curved surfaces of multiple compositions.
The switch module of the computer input apparatus of 30. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprises and is positioned at the first right-angle prism below keycap and the second right-angle prism, the collimation Fresnel Lenses be positioned on lower set casing first lead to the hole site, the sixth gear mating plate that is positioned at the light-focusing Fresnel lens on lower set casing second lead to the hole site and is positioned on pcb board
Described first right-angle prism and described second right-angle prism are aimed at mutually, when button loosens, through the light that light emitting devices sends, after being positioned at and lower set casing collimating Fresnel Lenses collimation, incide described first right-angle prism be positioned at below keycap, after the reflective surface above it, light ray bending incides opposite side, be positioned at described second right-angle prism below keycap equally, after the reflecting surface above it again secondary reflection, light incides the light-focusing Fresnel lens being arranged in lower set casing downwards, converge on the light receiving element of pcb board, thus circuits for triggering conducting,
When button pressed, the light between described first right-angle prism and described second right-angle prism blocks by sixth gear mating plate on pcb board completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 31. a kind of super thin reflectives according to claim 30, it is characterized in that, reflecting surface above described first right-angle prism and described second right-angle prism is fully reflecting surface, and be clinoplain, it also can be off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, or is the compound curved surfaces of multiple compositions.
The switch module of the computer input apparatus of 32. a kind of super thin reflectives according to claim 2, it is characterized in that, described path channels comprises the 7th light barrier being positioned at the 24 reflecting surface below keycap and the 25 reflecting surface and being positioned on pcb board
Described 24 reflecting surface and described 25 reflecting surface are aimed at mutually, when button loosens, through the light that light emitting devices sends, described 24 reflecting surface be positioned at below keycap is incided through being positioned at the first through hole on lower set casing, after reflection ray cast to opposite side, be positioned at below keycap the 25 reflecting surface equally on, after secondary reflection again, transfer below light directive, converge on the light receiving element of pcb board through the second through hole be positioned on lower set casing, thus circuits for triggering conducting;
When button pressed, the light between described 24 reflecting surface and described 25 reflecting surface blocks by the 7th light barrier on pcb board completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 33. a kind of super thin reflectives according to claim 32, it is characterized in that, described 24 reflecting surface and described 25 reflecting surface be all off axis paraboloid mirrors, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions.
The switch module of the computer input apparatus of 34. a kind of super thin reflectives according to claim 1, it is characterized in that, described light emitting devices is vertically arranged on fixed shell, described light receiving element is arranged on described pcb board, described lower set casing is provided with the second through hole, and described second through hole is positioned at above described light receiving element.
The switch module of the computer input apparatus of 35. a kind of super thin reflectives according to claim 34, it is characterized in that, the 27 reflecting surface that described path channels comprises the collimation Fresnel Lenses being arranged at set casing, the 26 reflecting surface being positioned at key axle and is positioned at below set casing
From the light that light emitting devices sends, after the collimation Fresnel Lenses on upper set casing, collimated incident is on described 26 reflecting surface of key axle, when button pressed, described 26 reflecting surface of key axle just in time aims at described 27 reflecting surface below set casing, the light of coming from described 26 reflecting surface incidence is carried out turnover injection by it, the light of injection focuses on the light receiving element of pcb board after lower set casing second lead to the hole site, thus circuits for triggering conducting;
When button pull-off spring is returned to original position, described 26 reflecting surface and described 27 reflecting surface stagger completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 36. a kind of super thin reflectives according to claim 35, it is characterized in that, described 27 reflecting surface is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions.
The switch module of the computer input apparatus of 37. a kind of super thin reflectives according to claim 34, it is characterized in that, described path channels comprises the collimation Fresnel Lenses being arranged at set casing, the 7th refractive prism being positioned at the 8th light barrier below keycap and being positioned on lower set casing second lead to the hole site
The described collimation Fresnel Lenses and described 7th refractive prism that are arranged at set casing are aimed at mutually, when button loosens, through the light that light emitting devices sends, through the injection of described collimation Fresnel Lenses collimation, described 7th refractive prism under light to being arranged in of opposite side on set casing second lead to the hole site, after the fully reflecting surface turnover of its inclined upward, condensation Fresnel plane below described 7th refractive prism converges on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pressed, the light between described collimation Fresnel Lenses and described 7th refractive prism blocks by the 8th light barrier below keycap completely, and light path is cut off, and the circuit be connected is in off-state.
38. according to the switch module of the computer input apparatus of a kind of super thin reflective according to claim 37, it is characterized in that, the top of described 7th refractive prism is the reflecting surface tilted, this reflecting surface is from the parabola of axle, free form surface from axle quadratic surface or polynomial surface form, it also can be inclination pure-surface, or be the compound curved surface of multiple compositions, the below of described 7th refractive prism is condensation Fresnel face.
The switch module of the computer input apparatus of 39. a kind of super thin reflectives according to claim 34, it is characterized in that, described path channels comprises the collimation Fresnel Lenses being arranged at set casing, the second eighteen incompatibilities being positioned at the 9th light barrier below keycap and being positioned at set casing penetrate face
Be arranged at the described collimation Fresnel Lenses of set casing and described second eighteen incompatibilities to penetrate face and mutually aim at, when button loosens, through the light that light emitting devices sends, through the injection of described collimation Fresnel Lenses collimation, light penetrates face to second eighteen incompatibilities being positioned at upper set casing of opposite side, after its reflection turnover, converge on the light receiving element of pcb board through the second through hole be positioned on lower set casing, thus circuits for triggering conducting;
When button pressed, the light that described collimation Fresnel Lenses and described second eighteen incompatibilities are penetrated between face blocks by the 9th light barrier below keycap completely, and light path is cut off, and the circuit be connected is in off-state.
40. according to the switch module of the computer input apparatus of a kind of super thin reflective according to claim 39, it is characterized in that, described second eighteen incompatibilities penetrate that face is off axis paraboloid mirror, free form surface from axle 2 curved surfaces or polynomial surface, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions.
The switch module of the computer input apparatus of 41. a kind of super thin reflectives according to claim 34, it is characterized in that, described path channels comprises the collimation Fresnel Lenses being arranged at set casing, the 8th refractive prism being positioned at the tenth light barrier below keycap and being positioned on lower set casing second lead to the hole site
The described collimation Fresnel Lenses and described 8th refractive prism that are arranged at set casing are aimed at mutually, when button loosens, through the light that light emitting devices sends, through the injection of described collimation Fresnel Lenses collimation, described 8th refractive prism under light to being arranged in of opposite side on set casing second lead to the hole site, after the fully reflecting surface turnover of its inclined upward, then the transmission plane below it converges on the light receiving element of pcb board, thus circuits for triggering conducting;
When button pressed, the light between described collimation Fresnel Lenses and described 8th refractive prism blocks by the tenth light barrier below keycap completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 42. a kind of super thin reflectives according to claim 41, it is characterized in that, the top of described 8th refractive prism is the reflecting surface tilted, this reflecting surface is from the parabola of axle, free form surface from axle quadratic surface or polynomial surface form, it also can be inclination pure-surface, or be the compound curved surface of multiple compositions, the below of described 8th refractive prism is transmission plane.
The switch module of the computer input apparatus of 43. a kind of super thin reflectives according to claim 1, it is characterized in that, described light receiving element is vertically arranged on fixed shell, described light emitting devices is arranged on described pcb board, described lower set casing is provided with the first through hole, and described first through hole is positioned at above described light emitting devices.
The switch module of the computer input apparatus of 44. a kind of super thin reflectives according to claim 43, it is characterized in that, described path channels comprises and is arranged at the 29 reflecting surface, the 30 reflecting surface be positioned on key axle below set casing, is positioned at the 31 reflecting surface of opposite side on key axle and is positioned at the light-focusing Fresnel lens of set casing
From the light that light emitting devices sends, described 29 reflecting surface after the first through hole on lower set casing below collimated incident to upper set casing, when button pressed, described 30 reflecting surface on key axle just in time aims at described 29 reflecting surface below set casing, the light of coming from described 29 reflecting surface incidence is carried out turnover injection by it, then described 31 reflecting surface of the opposite side be positioned at equally on key axle is incided, after again reflecting turnover, the light receiving element of set casing is focused on after re-shooting the light-focusing Fresnel lens being positioned at set casing opposite side, thus circuits for triggering conducting,
When button pull-off spring is returned to original position, described 30 reflecting surface and described 29 reflecting surface stagger completely, described 31 reflecting surface also staggers completely with described light-focusing Fresnel lens simultaneously, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 45. a kind of super thin reflectives according to claim 44, it is characterized in that, described 29 reflecting surface is from the parabola of axle, free form surface from axle quadratic surface or polynomial surface form, it can be also inclination pure-surface, or is the compound curved surface of multiple compositions.
The switch module of the computer input apparatus of 46. a kind of super thin reflectives according to claim 43, it is characterized in that, described path channels comprises the light-focusing Fresnel lens be positioned on set casing being positioned at described 11 light barrier below keycap, being positioned at described 9th refractive prism on lower set casing and described 11 light barrier opposite side
Described 9th refractive prism is aimed at mutually with the described light-focusing Fresnel lens being arranged at upper set casing, when button loosens, from the light that light emitting devices sends, after the first through hole on lower set casing, collimated incident is to described 9th refractive prism, after its collimation and turnover, what incide opposite side is arranged in light-focusing Fresnel lens described in set casing, then converges to the light receiving element of set casing, thus circuits for triggering conducting;
When button pressed, the light between described collimation Fresnel Lenses and described 9th refractive prism blocks by described 11 light barrier below keycap completely, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 47. a kind of super thin reflectives according to claim 46, it is characterized in that, the top of described 9th refractive prism is the reflecting surface tilted, this reflecting surface is from the parabola of axle, free form surface from axle quadratic surface or polynomial surface form, it also can be inclination pure-surface, or be the compound curved surface of multiple compositions, the below of described 9th refractive prism is transmission plane.
The switch module of the computer input apparatus of 48. a kind of super thin reflectives according to claim 1, it is characterized in that, described light receiving element is vertically arranged on described keycap, described light emitting devices is arranged on described pcb board, described lower set casing is provided with the first through hole, and described first through hole is positioned at above described light receiving element.
The switch module of the computer input apparatus of 49. a kind of super thin reflectives according to claim 48, it is characterized in that, described path channels comprises and is positioned at the collimation Fresnel Lenses on lower set casing first lead to the hole site, the 12 light barrier be fixed on described pcb board, is fixed on below keycap and lays respectively at the 32 reflecting surface and light-focusing Fresnel lens of described 12 light barrier both sides
Described 32 reflecting surface is aimed at mutually with the described light-focusing Fresnel lens be fixed on below keycap, when button loosens, from the light that light emitting devices sends, after the collimation Fresnel Lenses on lower set casing first lead to the hole site, collimated incident is to described 32 reflecting surface, after its turnover, incide in the described light-focusing Fresnel lens being fixed on below keycap of opposite side, then converge to the light receiving element be fixed on equally below keycap, thus circuits for triggering conducting;
When button pressed, the light between described light-focusing Fresnel lens and described 32 reflecting surface blocks by the 12 light barrier completely that be fixed on described pcb board, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 50. a kind of super thin reflectives according to claim 49, is characterized in that, described light-focusing Fresnel lens and described light receiving element are fixed on below keycap by the mode of buckle.
The switch module of the computer input apparatus of 51. a kind of super thin reflectives according to claim 49, is characterized in that, described 32 reflecting surface is clinoplain.
The switch module of the computer input apparatus of 52. a kind of super thin reflectives according to claim 48, it is characterized in that, described path channels comprises and is positioned at the collimation Fresnel Lenses on lower set casing first lead to the hole site, the 13 light barrier be fixed on described pcb board, is fixed on below keycap and lays respectively at the 3rd right-angle prism and light-focusing Fresnel lens of described 12 light barrier both sides
Described 3rd right-angle prism is aimed at mutually with the described light-focusing Fresnel lens be fixed on below keycap, when button loosens, from the light that light emitting devices sends, after the collimation Fresnel Lenses on lower set casing first lead to the hole site, collimated incident is to described 3rd right-angle prism, after the reflecting surface of its clinoplain launches turnover, incide in the described light-focusing Fresnel lens being fixed on below keycap of opposite side, converge to the light receiving element be fixed on equally below keycap again, thus circuits for triggering conducting;
When button pressed, the light between described light-focusing Fresnel lens and described 3rd right-angle prism blocks by the 13 light barrier completely that be fixed on described pcb board, and light path is cut off, and the circuit be connected is in off-state.
The switch module of the computer input apparatus of 53. a kind of super thin reflectives according to claim 52, it is characterized in that, described light-focusing Fresnel lens, described light receiving element and described 3rd right-angle prism are all fixed on below keycap by the mode of buckle.
The switch module of the computer input apparatus of 54. a kind of super thin reflectives according to claim 52, is characterized in that, the top of described 3rd right-angle prism is the reflecting surface of clinoplain.
55. according to the switch module of the computer input apparatus of the arbitrary described a kind of super thin reflective of claim 1 to 54, it is characterized in that, described reflecting surface is high reflectance surface, its reflection coefficient is more than 80%, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
56. according to the switch module of the computer input apparatus of the arbitrary described a kind of super thin reflective of claim 1 to 54, and it is characterized in that, described light emitting devices is SMD IR infrared diode or laser diode, and described light receiving element is that SMD PT manages.
57. according to the switch module of the computer input apparatus of the arbitrary described a kind of super thin reflective of claim 20 to 54, it is characterized in that, described light barrier is the material of black light-absorbing, itself and described keycap are adopted the method injection mo(u)lding of double-shot moulding or are combined by the mode of buckle, or are arranged on above described pcb board by the mode of buckle.
58. 1 kinds of keycap character illuminators, the switch module of the computer input apparatus of the arbitrary described a kind of super thin reflective of claim 1 to 54 is coordinated to use, it is characterized in that, described keycap character illuminator comprises: the optics being arranged on the lighting source on described pcb board and being positioned at for luminous intensity distribution on fixed shell, wherein said lighting source is monochromatic LED chip or multi-colored led chip, described optics is trapezoidal reflector, square reflector, spreadlight lens, total reflection lens, compound lens or be used for does the expanding sheet of the inside doping diffusion particle of mixed light process.
59. a kind of keycap character illuminators according to claim 58, it is characterized in that, described optics is trapezoidal reflector or square reflector, its light sent by described lighting source carries out luminous intensity distribution, be assigned to required illumination zone, its reflecting surface is high reflectance surface, and its reflection coefficient is more than 80%, it is bright silver or is bright gold look, also can be high reflectance white or light reflected coat layer.
60. a kind of keycap character illuminators according to claim 58, it is characterized in that, described optics is decentered lens, and its top-surface camber is eccentric, asymmetrical free form surface.
61. a kind of keycap character illuminators according to claim 58, it is characterized in that, described optics is total reflection lens, and it comprises middle refracted portion and the total reflection part of outer ring.
62. a kind of keycap character illuminators according to claim 58, it is characterized in that, described optics is compound lens, its lower surface is zigzag Fresnel surface, it can collect the light of wide-angle, and collimates, and reenters and be mapped on its upper surface after collimation, its upper surface is convex surface, is used for the light that lower surface collimated incident is come to be assigned to required field of illumination.
63. a kind of keycap character illuminators according to claim 58, it is characterized in that, described lighting source is multi-colored led chip, and described optics is the expanding sheet of the inside doping diffusion particle for doing mixed light process.
CN201510412638.0A 2015-07-13 2015-07-13 Switch module of ultrathin reflective computer input equipment Pending CN105006396A (en)

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