CN1841288A - Light guide structure for optical pen - Google Patents
Light guide structure for optical pen Download PDFInfo
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- CN1841288A CN1841288A CNA2005100597969A CN200510059796A CN1841288A CN 1841288 A CN1841288 A CN 1841288A CN A2005100597969 A CNA2005100597969 A CN A2005100597969A CN 200510059796 A CN200510059796 A CN 200510059796A CN 1841288 A CN1841288 A CN 1841288A
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Abstract
The guide light structure of an optical pen comprises: a light source to emit light beam outward, a light sensor to acquire a beam reflected on outside surface, and a guide light assembly with an incidence surface near the source, an extend part to extend a given distance paralleled reverse direction of defined acquisition light on reflection beam path, and an emission surface on further end of the extend part. Wherein, the slope angle of emission light is less than 50deg. This invention can improve contrast and resolution of reflected video light.
Description
Technical field
The invention relates to a kind of light guide structure of optical pen, refer to especially a kind ofly integrate optical mouse and handwriting identification function and light can be shone at a predetermined angle to extraneous surface, to obtain the optical pen of preferable image identification function by light guide structure.
Background technology
For desktop or mobile computer, personal digital assistant (Personal Digital Assistant; Be called for short PDA), with the various electronic information aids that great mass of data input demand is often arranged such as intelligent mobile phone (Smart Phone), hand input device conveniently selection of another except that mouse and keyboard beyond doubt.
At present the hand input device of prior art can be divided three classes, a kind of touch control screen that needs to cooperate pressure sensitive uses, a kind of be that the digitizing tablet of electromagnetic induction uses, also has a kind of optical pen that just is to use.Because it is relatively low and be suitable on any surface the characteristic that operation is write that optical pen has cost, therefore become among the present various hand input device more general relatively a kind of.
Seeing also Fig. 1, is the synoptic diagram of a prior art optical pen 10.By and large, optical pen 10 can be described as the optical mouse of a penholder shape in fact.Body 11 persons of being easy to use of its penholder shape grip and write, and are positioned at the light source 12 and the optical inductor 13 of body 11 lower ends, and then fechtable is positioned at the reflected image light of the position, zonule 16 near the nib 14 the extraneous surface 15.When optical pen 10 moved, institute's picked image light can produce continuity and directive variation, can detect direction and speed that optical pen 10 moves whereby.After this information sent to electronic information aid that optical pen 10 connected and handle, just can reach the purpose of handwriting input.
Yet prior art optical pen 10 as shown in Figure 1 has a distinct disadvantage, owing to be subject to the very thin size of nib 14, its light source 12 can't be directly arranged near the nib 14, but need be arranged in the penholder body 11 of extraneous surface 15 1 segment distances.Yet the light and the angle theta between the extraneous surface 15 1 that so but cause light source 12 to be shone are general all greater than more than the 70 degree angles.And when user's custom is carried out the operation of optical pen 10 with the posture that vertically holds a pen, the value of this θ 1 angle even an angle of 90 degrees that can level off to.And under the wide-angle direct irradiation of this kind light source 12, will reduce by the correlative value of the extraneous surface 15 image light that reflected, make optical inductor 13 accept the signal deficiency, and therefore increase the degree of difficulty and the fault rate of image identification.So, the prior art optical pen 10 that is sold on the market at present, mat applying or the desktop that is printed with special figure line (pattern) of all need arranging in pairs or groups uses, and improving the success ratio of image identification, yet but therefore limited activity and the convenience that the user operates prior art optical pen 10.
United States Patent (USP) US Pat.No.6433780 case once disclosed a kind of optical mouse, its by light source incline is arranged at the side that is close to extraneous surface and with the mode of optical inductor at a distance of a suitable width, reaching the light that makes light source can the extraneous surperficial purpose of an angle of inclination directive.Yet because the revealer of US Pat.No.6433780 institute is an optical mouse, it has relatively large width and length dimension, so can be arranged on and optical inductor width position far away apart in the inclination mode for light source.Yet in optical pen 10 technical fields that the present invention was suitable for, the body of its optical pen 10 all is to present elongated penholder shape structure.This light source 12 and the optical inductor 13 that are positioned at body 11 lower ends almost are to be provided with in the mode that abuts against together, and can not be arranged on pen tip position to press close to extraneous surface.That is to say at all, the optical pen 10 of prior art can not be shown in US Pat.No.6433780 as with light source to tilt and to be provided with at a distance of the suitable mode of width with optical inductor.So the disclosed technology of US Pat.No.6433780 also can't directly be used on the structure of optical pen 10.
Summary of the invention
Fundamental purpose of the present invention provides a kind of light guide structure of optical pen, and by the setting of leaded light component, the light that light source is sent can shine to extraneous surface, to obtain preferable reflected image light by a predetermined angular that tilt.
For reaching above-mentioned purpose, the light guide structure of optical pen of the present invention can comprise: a light source, an optical inductor and a leaded light component.Light source can send light directive one extraneous surface, and by the reflected image light of optical inductor acquisition by this surface, external world, and the direction that this reflected image light is advanced defines acquisition light direction (so-called acquisition light direction is meant the direct of travel of the reflected image light that is captured by optical inductor).Leaded light component is constituted and is had an incidence surface, an extension, an and exiting surface with the leaded light material.Incidence surface is adjacent to this light source.Extension is to extend a preset distance along the direction parallel and opposite with the acquisition light direction substantially from incidence surface.Exiting surface is to be positioned at the end of extension away from incidence surface, and promptly this exiting surface is adjacent to a precalculated position on extraneous surface, and the light that light source sends can be penetrated by exiting surface after this incidence surface is injected leaded light component again.
The light that sends by light source can be after the guiding of leaded light component again with should surface, the external world less than the angle of inclination directive at 50 degree angles, with improve reflected image light to recognition rate when.
Wherein, light source can be light emitting diode (LED) or miniature traditional osram lamp; Optical inductor can be field-effect transistor optical inductor (CMOS Sensor) or Charged Coupled Device optical inductor (CCD); Leaded light component is a solid long and narrow awl column structure, is made of for example transparent acryl (polyacrylic acid resinoid), PC plastics (polycarbonate), glass or quartz etc. the leaded light material.
The preferably, the light that is penetrated by this leaded light component is good with the angle between the extraneous surface between 21～50 degree angles, and can have better image identification effect when its angle when 25～40 spend angles.
The preferably, an area of section of this extension of this leaded light component is to dwindle gradually towards the direction of exiting surface from incidence surface.
The preferably is provided with an excision part in this leaded light component away from the part of light source, so that the shape of leaded light component is just like the nib structure of general pen.
The preferably more be arranged with the end of a wear-resisting headgear with the protection leaded light component in the leaded light component outside, and this wear-resisting headgear equally also is provided with a perforate with respect to the position of exiting surface.
Description of drawings
Fig. 1 is the synoptic diagram of a prior art optical pen;
Fig. 2 is the first preferred embodiment synoptic diagram of the light guide structure of optical pen of the present invention;
Fig. 3 is the second preferred embodiment synoptic diagram of the light guide structure of optical pen of the present invention;
Fig. 4 is the 3rd a preferred embodiment synoptic diagram of the light guide structure of optical pen of the present invention;
Fig. 5 is the 4th a preferred embodiment synoptic diagram of the light guide structure of optical pen of the present invention;
Fig. 6 is the 5th a preferred embodiment synoptic diagram of the light guide structure of optical pen of the present invention;
Fig. 7 A is the schematic appearance of the 6th preferred embodiment of the light guide structure of optical pen of the present invention;
Fig. 7 B is the diagrammatic cross-section of the 6th preferred embodiment of the light guide structure of optical pen of the present invention.
Drawing reference numeral explanation: 10 optical pen; 11 bodies; 12 light sources; 13 optical inductors; 14 nibs; 15 extraneous surfaces; Position, 16 zonule; 20,20a, 20b, 20c optical pen; 21,21a, 21b, 21c penholder; 22,22a, 22b, 22c light source; 23,23a, 23b, 23c lens; 24,24a, 24b, 24c optical inductor; 25,25a, 25b, 25c control module; 26 buttons; 27,27c axis direction; 28,28a, 28c acquisition light direction; 29 catoptrons; 30,30a, 30b, 30c light guide structure; 31,31a, 31b, 31c leaded light component; 32 through holes; 33,33b, 33c incidence surface; 34,34a, 34b, 34c extension; 35,35a, 35b exiting surface; 36 kinks; 37,37a light direction; 38 leaded light bridge constructions; 39 extension zones; 50,70 optical pen; 51,71 penholders; 52 nibs; 53,72 light sources; 55,73 lens; 56,74 optical inductors; 57,81 leaded light components; 571 oblique vertebra faces; 572 cut-outs; 62,82 axis directions; 64 optical paths; 69,89 wear-resisting headgears; 91,91a, 91c, 63 extraneous surfaces; 92,631 precalculated positions; 75 control modules; 76 buttons; 77 elastic partss; 78 pressure inductors; 79 acquisition light directions; 80 locating racks; 801,802 pilot holes; 83 incidence surfaces; 84 reflectings surface; 85 exiting surfaces; 891 openings.
Embodiment
See also Fig. 2, it is the first preferred embodiment synoptic diagram of the light guide structure of optical pen 70 of the present invention.First preferred embodiment of optical pen 70 of the present invention can include: a penholder 71, a light source 72, lens 73, an optical inductor 74, a control module 75, a button 76, an elastic parts 77, a pressure inductor 78 and a light guide structure.In this preferred embodiment, this light guide structure includes a locating rack 80 and a leaded light component 81.This locating rack 80 is provided with the pilot hole 801,802 of reservation shape for holding and positioned light source 72, leaded light component 81 and lens 73.And this leaded light component 81 is positioned at penholder 71 ends (lower end) and constitutes the nib part of optical pen 70.
This penholder 71 constitutes the body of optical pen 70 each assembly for ccontaining optical pen 70.In present embodiment, this penholder 71 is long and narrow penholder shape assemblies and is substantially predetermined length and the width that is suitable for the staff gripping.
This light source 72 is in order to produce a precalculated position 92 places of rayed near the extraneous surface 91 of one these penholder 71 ends (lower end), for the reflected image light in the precalculated position, a zonule 92 that obtains this surface, external world 91.In present embodiment, this light source 72 can be a light emitting diode (LED) or miniature traditional osram lamp.And the direction that this reflected image light is advanced defines acquisition light direction 79, and in this preferred embodiment, this acquisition light direction 79 is that the bearing of trend with long and narrow penholder 71 is parallel to each other substantially but does not overlap.
These lens 73 are located at before the optical inductor 74, and it can be a single lens or a lens combination.These lens 73 can be assembled reflected image light and be imaged on the optical inductor 74.
This optical inductor 74 is in order to the reflected image light of acquisition near this precalculated position 92 penholder 71 ends (lower end), and is converted into an electrical signal.In present embodiment, this optical inductor 74 can be field-effect transistor optical inductor (CMOS Sensor) or Charged Coupled Device optical inductor (CCD), and is to be located on this acquisition light direction 79.
This control module 75 is connected in this light source 72 and this optical inductor 74, can accept this electrical signal from optical inductor 74, and in addition after the calculation process, produce the first corresponding controlling signal, send the extraneous electronic information aid (not shown) that optical pen 70 connected to wired or wireless mode and do further calculation process, to carry out first predetermined function, for example control the mobile and location of cursor position or carry out hand-write input function.
This button 76 is to be connected in this control module 75.Can make control module 75 produce the second corresponding controlling signal by pushing this button 76, send the extraneous electronic information aid that is connected to through control module 75 and do further calculation process, to carry out second predetermined function, for example carry out cursor position pairing execution merit able one (function of just similar conventional mouse button).
This elastic parts 77 is to be resisted against between locating rack 80 and penholder 71 interior wall constructions.Elastic parts 77 can provide a back stretch, makes locating rack 80 can carry out the compression displacement up and down with respect to (about 0.5～5mm distance) a little of penholder 71 together with assemblies such as light source 72, leaded light component 81 and lens 73.Elastic parts 77 other ends are connected with this pressure inductor 78.Elastic parts 77 pressure that pressure inductor 78 is produced in the time of can detecting because of locating rack 80 (together with light source 72, leaded light component 81 and lens 73) compression displacement change, and the 3rd controlling signal that produces correspondence passes to control module 75 to carry out the 3rd predetermined function, for example, can change stroke weight according to the pressure size when carrying out handwriting input, and reach the function of printing calligraphy.
More be arranged with a wear-resisting headgear 89 in leaded light component 81 outsides with the protection nib.Because leaded light component 81 is made of materials such as transparent plastics, its least significant end nib partly needs easily to produce loss with the 91 long-term frictions of extraneous surface.So, this preferred embodiment is set up especially and is put a wear-resisting headgear 89 and be sheathed on leaded light component 81, and, allow light get to extraneous surperficial 91 precalculated position 92 by low angle in nib designed openings 891 near least significant end, make optical inductor 74 can more know pick-up image.
As shown in Figure 2, this leaded light component 81 of the present invention is supported by locating rack 80 and is to be positioned at this end (lower end) of this penholder 71 and a nib structure of formation and this penholder 71.And this leaded light component 81 is that solid long and narrow its definition of awl column structure has a nib axis direction 82, passes through for this reflected image light.In this preferred embodiment, this leaded light component 81 is constituted (for example transparent acryl, PC plastics, glass or quartz etc.) and is had an incidence surface 83, a reflecting surface 84, an and exiting surface 85 with the leaded light material.This incidence surface 83 is adjacent to this light source 72.In this preferred embodiment, this incidence surface 83 is that design is a convex configuration, it can be assembled the diverging light that sends that scattered by light source 72, and the light that light source 72 is sent can become the directional light of advancing along nib axis direction 82 substantially after injecting leaded light component 81.83 of the interior incidence surfaces without leave of this leaded light component 81 are to dwindle gradually and become a long and narrow awl column structure along nib axis direction 82, and the leaded light component 81 of the long and narrow awl column structure of this kind can provide the effect of an optically focused to the light of its inside.85 of this reflecting surface 84 and this exiting surfaces are to be positioned at the end (bottom) of leaded light component 81 away from incidence surface 83, and the position of exiting surface 85 is these 92 places, precalculated position that are adjacent to extraneous surface 91.
The leaded light material of this leaded light component 81 has predetermined optical refractive index, make the light of advancing in leaded light component 81 inside, as long as the angle between its light direct of travel and leaded light component 81 surfaces is during less than a predetermined angular, this light just can be reflected by leaded light component 81 surfaces, therefore can provide photoconduction to draw function.For example, when this preferred embodiment selected to be the material of leaded light component 81 with transparent PC plastics, as long as when the light direct of travel is spent the left and right sides, angle with the angle between leaded light component 81 surfaces less than about 37, light just can carry out total reflection in leaded light component 81 inside.Relatively, if when the angle between light direct of travel and leaded light component 81 surfaces is above greater than 37 degree angles, light will penetrate and penetrate leaded light component 81.By the reflective character of this kind leaded light material, the light guide structure of optical pen of the present invention is set up corresponding to the side in addition of this exiting surface 85 at the end of leaded light component 81 especially and is put a reflecting surface 84.The angle that has a predetermined angular between this reflecting surface 84 and this nib axis direction 82.The angle of this predetermined angular is an acute angle, and its angle that can make the directional light directive reflecting surface 84 of advancing along nib axis direction 82 is less than 37 degree angles.Thus, 84 total reflections of face and those directional lights of leaded light component 81 inside will be reflected, and change this exiting surface 85 of directive.And those be reflected light that face 84 reflected and the angles between the exiting surface 85 will be because of penetrating leaded light component 81 surfaces greater than 37 degree angles, and and then this 92 places, precalculated position on the extraneous surface 91 of directive.In this preferred embodiment, exiting surface 85 emitted light and the angle theta between this surface, external world 91 from leaded light component 81 can be between 21～50 degree angles, this moment, the correlative value by the extraneous surface 91 reflected image light that reflected will existent technique more as shown in Figure 1 significantly increase, therefore 74 picked image qualities of optical inductor of optical pen 70 of the present invention and discrimination power also will show and improving, even but also proper operation and use not on being printed on the mat applying of special pattern the time.In addition, learn through the present invention experiment, if the value of aforesaid angle theta when 25～40 degree angles, 74 picked image qualities of optical inductor and discrimination power can further improve.
In another preferred embodiment of the present invention, also this reflecting surface 84 of leaded light component 81 can be designed to an arc surface or spherical structure, the directional light of leaded light component 81 inside is brought into play the effect of optically focused, make 92 places, precalculated position can accept higher relatively luminance brightness.
See also Fig. 3, it is the second preferred embodiment synoptic diagram of the light guide structure 30 of optical pen 20 of the present invention.Second preferred embodiment of optical pen 20 of the present invention includes equally: a penholder 21, a light source 22, lens 23, an optical inductor 24, a control module 25, a button 26 and a light guide structure 30.In this preferred embodiment, this light guide structure 30 includes a leaded light component 31 equally, and this leaded light component 31 is positioned at penholder 21 ends (lower end) equally and constitutes the nib part of optical pen 20 equally.
This penholder 21 constitutes the body of optical pen 20 each assembly for ccontaining optical pen 20.In present embodiment, this penholder 21 is to be a long and narrow penholder shape assembly and is to extend a predetermined length along an axis direction 27 substantially.Therefore, in this second preferred embodiment, the nib of optical pen 20 (it is made of leaded light component 31) has identical axis direction 27 with penholder 21.
This light source 22 is sentenced for obtaining reflected image light in order to produce the precalculated position 92 of rayed near the extraneous surface 91 of one these penholder 21 ends (lower end).The direction system definition that this reflected image light is advanced has an acquisition light direction 28, and in this preferred embodiment, this acquisition light direction 28 is to overlap mutually with this axis direction 27.
These lens 23 are located at before the optical inductor 24, and it can be assembled reflected image light and image on the optical inductor 24.
This optical inductor 24 is from the reflected image light in this precalculated position 92 and be converted into an electrical signal in order to acquisition.In present embodiment, this optical inductor 24 is to be located on this axis direction 27.
This control module 25 is to be connected in this light source 22 and this optical inductor 24, can accept this electrical signal from optical inductor 24, and in addition after the calculation process, produces the first corresponding controlling signal.This button 26 is to be connected in this control module 25.Can make control module 25 produce the second corresponding controlling signal by pushing this button 26.
As shown in Figure 3, this leaded light component 31 of the present invention is to be positioned at this end (lower end) of this penholder 21 and a nib structure of formation and these penholder 21 coaxial hearts.And this leaded light component 31 is to be a hollow ring column structure, and it is provided with a through hole 32 that extends along this acquisition light direction, passes through for this reflected image light.This leaded light component 31 has an incidence surface 33, an extension 34, reaches an exiting surface 35.This incidence surface 33 is to be adjacent to this light source 22.This extension 34 is to extend a preset distance from these incidence surface 33 cardinal principles along the direction opposite with this acquisition light direction 28.This exiting surface 35 is to be positioned at terminal and be this precalculated position 92 that is adjacent to extraneous surface 91 away from incidence surface 33 of extension 34.The light that is sent by light source 22 is at a predetermined angle after this incidence surface 33 is injected leaded light component 31, can leaded light component 31 inside carry out one or repeatedly total internal reflection after, and guided by leaded light component 31 and penetrate by exiting surface 35, to reach the function of guide lights course.
In this second preferred embodiment, this extension 34 of leaded light component 31 also has the kink 36 towards 28 bendings of this acquisition light direction in the position near exiting surface 35.And this exiting surface 35 of this leaded light component 31 is the plane (but it also can be an arc surface or sphere) of cutting sth. askew, and the angle theta 2 between this exiting surface 35 and this acquisition light direction 92 is between 21～50 degree angles.That is to say, when this optical pen 20 is that mode with near vertical is when standing on this surface, external world 91, by with the defined light direction 37 of these exiting surface 35 mutually perpendicular directions, it will equate the angle of θ 2 in principle with the angle theta 3 between this surface, external world 91, just equally between 21～50 degree angle persons.When θ 2 or the angle of θ 3 when 21～50 spend, correlative value by the extraneous surface 91 reflected image light that reflected will prior art more as shown in Figure 1 significantly increase, and therefore 24 picked image qualities of optical inductor of optical pen 20 of the present invention and discrimination power also will show and improve.
In addition, the light guide structure 30 of optical pen 20 of the present invention, the value of the angle theta 2 between its exiting surface 35 and this acquisition light direction 28 more can between 25 degree between the 40 degree angles for better.Not only the value when angle theta 2 of the present invention can obtain preferable relatively reflected image quality and discrimination power when 25 degree are between 40 degree angles, and, even the user grips and when operating this optical pen 20 with an angle of inclination (being approximately 5 degree to 15 angles of inclination of degree between the angles), the value of the angle theta 3 between light direction 37 and this surface, external world 91 can not obtain good reflected image quality and discrimination power greater than 55 degree angles equally yet.
In other preferred embodiment of the present invention of the following stated, because most of assembly is the same as or similar to aforesaid embodiment.So identical or similar assembly will give identical numeral number and component Name and repeat no more its detailed formation, and only be after former numeral number, to increase by an English alphabet as a means of difference.
As shown in Figure 4, be the 3rd preferred embodiment synoptic diagram of the light guide structure 30b of optical pen 20b of the present invention.The optical pen 20b of the 3rd preferred embodiment has a penholder 21b, a light source 22b, a lens 23b, an optical inductor 24b, a control module 25b and a light guide structure 30b (leaded light component 31b) equally.Its difference is:
The area of section of this extension 34b of this leaded light component 31b is to dwindle gradually towards the direction of exiting surface 35b from incidence surface 33b, and becomes a cone shape structure that comes to a point gradually.And, be provided with two or more light source 22b to improve brightness in the incidence surface 33b of leaded light component 34b.In Fig. 4, the angle of θ 3 is equally between 21～50 degree.
As shown in Figure 5, be the 4th preferred embodiment synoptic diagram of the light guide structure 30c of optical pen 20c of the present invention.The optical pen 20c of the 4th preferred embodiment has a penholder 21c, a light source 22c, a lens 23c, an optical inductor 24c, a control module 25c and a light guide structure 30c (comprising leaded light component 31c) equally.Its difference is:
In the incidence surface 33c of this leaded light component 31c is the structure that is designed to widen increasing, injects among the leaded light component 31c from incidence surface 33c in order to the light of light source 22c.And, zone, stage casing in extension 34c is provided with leaded light bridge construction 38, make the light among the leaded light component 31c have part to shine so that make extraneous surperficial 91c can obtain uniform light from light source 22c another extension zone 39 far away by directive via the guiding of leaded light bridge construction 38.In addition, more have additional a catoptron 29, can change acquisition light direction 28c, optical inductor 24c can be arranged on this axis direction 27c in optical pen 20c inside.In Fig. 5, the angle of θ 3 is equally between 21～50 degree.
As shown in Figure 6, be the 5th preferred embodiment synoptic diagram of the light guide structure of optical pen 50 of the present invention.In this preferred embodiment, this optical pen 50 can include equally: a penholder 51, a nib 52, a light source 53, lens 55, an optical inductor 56, an and leaded light component 57.Its difference is:
These leaded light component 57 upper ends are to be adjacent to light source 53, the other end then to approach these nib 52 places and be provided with an oblique vertebra face 571.Can form a reflecting surface in this oblique vertebra face 571, for example can apply light reflecting material, or make the light source of leaded light component 57 inside reflected by oblique vertebra face 571 with the arrangement of suitable angle merely and be folded at its outer surface.By the setting of this leaded light component 57, make light source 53 light that produces to be guided and, reach the effect that light is concentrated to concentrate near the precalculated position 631 contiguous nib 52 on the extraneous surface 63 between 21～inclination of 50 degrees angle.And the optical path 64 of this reflected image light is to be coaxial (that is overlapping mutually) with the axis direction 62 of penholder 51.
In addition, include an excision part 572 in this leaded light component 57 away from light source 53 and than part (that is lower right corner part of leaded light component 57 shown in Figure 6) near precalculated position 631.The shape that this cut-out 572 can make leaded light component 57 is just like as the nib structure of general pen, can have more sharp-pointed relatively nib 52 and write in order to the user.
Shown in Fig. 7 A and Fig. 7 B, be respectively the schematic appearance and the diagrammatic cross-section of the 6th preferred embodiment of the light guide structure of optical pen 50 of the present invention.In this preferred embodiment, this optical pen 50 can include equally: a penholder 51, a nib 52, a light source 53, lens 55, an optical inductor 56, an and leaded light component 57.Its difference is:
More be arranged with a wear-resisting headgear 69 in leaded light component 57 outsides with protection nib 52.Since leaded light component 57 can transparent plastic etc. material constitute, its nib 52 parts need rub for a long time with extraneous surface 63 and easily produce loss.So, this preferred embodiment is set up especially and is put a wear-resisting headgear 69 and be sheathed on leaded light component 57, and equally also excised to stay a perforate in this cut-out 572 near nib 52, allow light get to 63 precalculated positions 631, extraneous surface, make optical inductor 56 can more know pick-up image between the low angle of 21～50 degree near nib 52.
But above-described embodiment shall not be applied to restriction range of application of the present invention, and protection scope of the present invention should be based on claims institute's definition techniques spirit of the present invention and the impartial scope that is included that changes thereof.Promptly the equalization of doing according to claim of the present invention generally changes and modifies, and will not lose main idea of the present invention place, does not also break away from the spirit and scope of the present invention, and the former capital should be considered as further enforcement situation of the present invention.
Claims (10)
1, a kind of light guide structure of optical pen, described optical pen comprise a light source and an optical inductor, and this light source can send the extraneous lip-deep pre-position of light directive one, and capture the reflected image light in this precalculated position by optical inductor, it is characterized in that:
This light guide structure includes a leaded light component, this leaded light component is constituted with the leaded light material, and have an incidence surface and an exiting surface, this incidence surface is adjacent to this light source, this exiting surface is adjacent to this precalculated position on extraneous surface, and the light that light source sends can be penetrated by exiting surface after this incidence surface is injected leaded light component again.
2, the light guide structure of optical pen as claimed in claim 1, wherein, this light guide structure defines a light direction that has light to penetrate this exiting surface, and the angle between this light direction and this surface, external world is between 21～50 degree angles.
3, the light guide structure of optical pen as claimed in claim 2, wherein, this light guide structure defines a light direction that has light to penetrate this exiting surface, and the angle between this light direction and this surface, external world is between 25～40 degree angles.
4, the light guide structure of optical pen as claimed in claim 1, wherein, this leaded light component is a solid long and narrow awl column structure, be provided with a reflecting surface of predetermined angular corresponding to the side in addition of this exiting surface in leaded light component, the reflecting surface of this predetermined angular can make the face institute total reflection that can be reflected of the light of leaded light component inside, and change this exiting surface of directive, and penetrate outside the leaded light component by exiting surface.
5, the light guide structure of optical pen as claimed in claim 1, wherein, this incidence surface design is a convex configuration, it can be assembled the light that is sent by light source, and the light that light source is sent can become the directional light of advancing along the leaded light component bearing of trend substantially after injecting leaded light component through incidence surface; And an area of section of this leaded light component is to dwindle gradually towards the direction of exiting surface from incidence surface.
6, the light guide structure of optical pen as claimed in claim 1, wherein, incidence surface in this leaded light component is the structure that is designed to widen increasing, light in order to light source is injected in the leaded light component from incidence surface, and, zone, a stage casing in leaded light component also is provided with a leaded light bridge construction, make light in the leaded light component have part can be via the guiding of this leaded light bridge construction directive from light source another extension zone far away.
7, the light guide structure of optical pen as claimed in claim 1, wherein, this optical pen also includes a long and narrow penholder that extends along an axis direction, this leaded light component is to be positioned at a terminal also formation of this penholder and the nib structure of the coaxial heart of this penholder, and, this leaded light component is to be a hollow ring column structure it is provided with the through hole that extends along this acquisition light direction, passes through for this reflected image light.
8, the light guide structure of optical pen as claimed in claim 1, wherein, this optical pen also comprises:
One control module is connected in this light source and this optical inductor, can accept the electrical signal from optical inductor, and in addition after the calculation process, produces the first corresponding controlling signal;
One button is connected in this control module, can make control module produce the second corresponding controlling signal by pushing this button;
One elastic parts, interlock are in this leaded light component, and elastic parts can provide back stretch to make leaded light component can carry out compression displacement a little;
One pressure inductor is connected in elastic parts, and the pressure that can detect elastic parts changes and produce the 3rd controlling signal of correspondence; And,
One lens, be located at optical inductor before, reflected image light can be imaged on the optical inductor.
9, the light guide structure of optical pen as claimed in claim 1 wherein, also be arranged with the end of a wear-resisting headgear with the protection leaded light component in the leaded light component outside, and this wear-resisting headgear is provided with a perforate with respect to the position of the exiting surface of this leaded light component.
10, a kind of light guide structure of optical pen, this optical pen includes a light source and an optical inductor, and this light source can send light, and by optical inductor acquisition by a reflected image light that this light caused, and the definition of the direction that this reflected image light is advanced system has an acquisition light direction, it is characterized in that:
This light guide structure includes a leaded light component, this leaded light component is constituted and is had an incidence surface, a reflecting surface, an and exiting surface with the leaded light material, this incidence surface is to be adjacent to this light source, this reflecting surface and exiting surface are to be positioned at leaded light component terminal and its both corresponding mutually away from incidence surface, make light that light source sends can be after this incidence surface be injected leaded light component, penetrate from exiting surface via the reflection of reflecting surface again;
Wherein, the arrangement angles of this reflecting surface, can make light that light source sends after injecting leaded light component via incidence surface, with relative this reflecting surface of small incident degree directive, thereby the face total reflection in addition that can be reflected, and change, and then light can be penetrated outside the leaded light component by this exiting surface with a relatively large incident angle directive exiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100597969A CN1841288A (en) | 2005-04-01 | 2005-04-01 | Light guide structure for optical pen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100597969A CN1841288A (en) | 2005-04-01 | 2005-04-01 | Light guide structure for optical pen |
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| CN1841288A true CN1841288A (en) | 2006-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2005100597969A Pending CN1841288A (en) | 2005-04-01 | 2005-04-01 | Light guide structure for optical pen |
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| CN (1) | CN1841288A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102103421A (en) * | 2009-12-17 | 2011-06-22 | 索尼公司 | Operation input device and method, program, and electronic apparatus |
| CN102346626A (en) * | 2010-08-05 | 2012-02-08 | 中国移动通信有限公司 | Running program control method, device and system and light ray emission method and device |
| CN101751161B (en) * | 2009-12-23 | 2012-10-17 | 明基电通有限公司 | Optical pen, optical pen position decision method and interactive display system |
| CN102737213A (en) * | 2011-03-30 | 2012-10-17 | 凌通科技股份有限公司 | Optical identification module apparatus and optical reader possessing optical identification module |
| TWI471766B (en) * | 2012-12-04 | 2015-02-01 | Uc Logic Technology Corp | A light-piercing pen tip element, and a light-sensitive stylus pen for the optical touch device comprising the polished pen tip element |
| TWI505150B (en) * | 2014-01-22 | 2015-10-21 | Kye Systems Corp | Pen-shape optical sensing device |
| CN108983999A (en) * | 2017-06-05 | 2018-12-11 | 奇象光学有限公司 | Digital pen |
| CN112965615A (en) * | 2021-02-05 | 2021-06-15 | 维沃移动通信有限公司 | Writing device and electronic equipment |
| WO2023005070A1 (en) * | 2021-07-30 | 2023-02-02 | 深圳市众鑫创展科技有限公司 | Integrated oid nib code scanning apparatus, light guide method, and talking pen |
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- 2005-04-01 CN CNA2005100597969A patent/CN1841288A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103421A (en) * | 2009-12-17 | 2011-06-22 | 索尼公司 | Operation input device and method, program, and electronic apparatus |
| CN102103421B (en) * | 2009-12-17 | 2014-05-07 | 索尼公司 | Operation input device and method, program, and electronic apparatus |
| CN101751161B (en) * | 2009-12-23 | 2012-10-17 | 明基电通有限公司 | Optical pen, optical pen position decision method and interactive display system |
| CN102346626A (en) * | 2010-08-05 | 2012-02-08 | 中国移动通信有限公司 | Running program control method, device and system and light ray emission method and device |
| CN102737213A (en) * | 2011-03-30 | 2012-10-17 | 凌通科技股份有限公司 | Optical identification module apparatus and optical reader possessing optical identification module |
| TWI471766B (en) * | 2012-12-04 | 2015-02-01 | Uc Logic Technology Corp | A light-piercing pen tip element, and a light-sensitive stylus pen for the optical touch device comprising the polished pen tip element |
| TWI505150B (en) * | 2014-01-22 | 2015-10-21 | Kye Systems Corp | Pen-shape optical sensing device |
| CN108983999A (en) * | 2017-06-05 | 2018-12-11 | 奇象光学有限公司 | Digital pen |
| CN112965615A (en) * | 2021-02-05 | 2021-06-15 | 维沃移动通信有限公司 | Writing device and electronic equipment |
| CN112965615B (en) * | 2021-02-05 | 2023-03-14 | 维沃移动通信有限公司 | Writing device and electronic equipment |
| WO2023005070A1 (en) * | 2021-07-30 | 2023-02-02 | 深圳市众鑫创展科技有限公司 | Integrated oid nib code scanning apparatus, light guide method, and talking pen |
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