CN202257476U

CN202257476U - Optical lens module for dust-proof input device

Info

Publication number: CN202257476U
Application number: CN2011203476488U
Authority: CN
Inventors: 郑国书
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2012-05-30
Anticipated expiration: 2021-09-16

Abstract

The utility model discloses an optical lens module for a dust-proof input device. The optical lens module comprises a base, an optical lens unit and an optical shield, wherein the base is provided with a light inlet/outlet hole; the optical lens unit is arranged on the base and comprises a first lens; and the optical shield is arranged between the base and the optical lens unit and provided with a diaphanous head part corresponding to the light inlet/outlet hole, and the head part is in close fit with the light inlet/outlet hole and provided with a second lens corresponding to the first lens. In the utility model, the optical shield allowing light to penetrate is arranged in the light inlet/outlet hole of the base of an optical mouse and other input devices, so that the optical input devices can induce and identify reflected light without influences; and the optical shield closes the light inlet/outlet hole to prevent dust, foreign objects or liquid from entering the input devices.

Description

Dust protected input media optical lens module

Technical field

The utility model relates to a kind of being used in such as input medias such as computer mouses, has the optical lens module that prevents that dust foreign matter or liquid from infiltrating.

Background technology

The traditional optical mouse is irradiate light one surface that utilizes the LED emission, and the light of responding to this surface reflection by the sense electronics optical assembly calculates its displacement, and then signal is passed to central processing unit (CPU) with the slider position on the reaction and display device.

General optical mouse is provided with optical lens element and light transmit/receive module in its enclosure; After the light transmit/receive module is controlled at least one led light source emission boundling light; After via most catoptrons of optical lens element this light being carried out the reflection of multiple angles; Light is fallen within on the surface through the light manhole appendix of outer casing base; By this surface the light reflection is got into enclosure through this light manhole appendix again, by the induction of the sense electronics optical assembly in the light transmit/receive module, with the displacement of computing mouse.

Said light manhole appendix is a kind of through hole of being located at outer casing base; General optical mouse all is that its base contact is moved on desktop, mouse pad or other object surfaces; Therefore; After using a period of time, attached to the dust on desktop, mouse pad or other body surface, hair, scurf ... etc. fine content be easy to be deposited in light manhole appendix edge, and then the turnover of disturbance causes the interpretation that influences displacement; The necessary periodic cleaning of user bothers in the use.In addition, the light manhole appendix that runs through also provides liquid to get in the mouse case, causes the chance of intraware fault.

The utility model content

The purpose of the utility model is the weak point to prior art; A kind of dust protected input media optical lens module is provided; To solve the convention optical mouse; Its light manhole appendix of being located at base is open through hole, does not prevent that dust and liquid from getting into the problem of enclosure so that do not possess.

For achieving the above object, the utility model adopts following technical scheme:

A kind of dust protected input media optical lens module includes: a base has a light manhole appendix; One optical lens element is located at this base, and this optical lens element includes one first lens; One optics guard shield; Be located between this base and this optical lens element, this optics guard shield have a pair of should the light manhole appendix and the head of light-permeable, make this head driving fit in this light manhole appendix; This head has second lens, and these second lens are to should first lens.

As preferably, said second lens are transparent for fully.

As preferably, said second lens are optical filtering.

As preferably, said second lens are convex lens.

As preferably, said second lens are concavees lens.

As preferably, said second lens are aspheric surface.

Further, said first lens are covered by in the head of this optics guard shield.

As preferably, have sinking space above the said base, the top of said light manhole appendix is formed with inward flange, and the head of said optics guard shield is formed with outward flange, and this head driving fit is when this light manhole appendix, and said outward flange receives this inward flange supporting.

As preferably, after said head is combined in this light manhole appendix, has a distance between the surface of these second lens and the lower surface of this base.

The utility model is the optics guard shield that the light manhole appendix setting at the base of input medias such as optical mouse can supply light to pass, thereby does not influence induction and the interpretation of optical input device to reflection ray; This optics guard shield seals said light manhole appendix, makes dust, foreign matter or liquid can't get into input media inside.

Description of drawings

Fig. 1 is for showing the utility model optical lens module structure, and with the embodiment three-dimensional exploded view of light transmit/receive module matching relationship.

Fig. 2 cooperates the embodiment stereographic map of back for showing the utility model optical lens module structure with the light transmit/receive module.

Fig. 3 cooperates the embodiment planimetric map of back for showing the utility model optical lens module structure with the light transmit/receive module.

Fig. 4 cooperates the embodiment section plan of back for showing the utility model optical lens module structure with the light transmit/receive module.

Among the figure: the 1-optical lens module; The 11-base; The 110-sinking space; 111-light manhole appendix; The 112-inward flange; The 12-optical lens element; The 120-pedestal; 121-goes into optical lens; 122-first catoptron; 123-second catoptron; 124-the 3rd catoptron; 125-first lens; 13-optics guard shield; The 131-head; 132-second lens; The 133-fastener; The 134-outward flange; 2-light transmit/receive module; The 21-circuit board; The 22-light source; 23-sense electronics optical assembly; 24-light source holder.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done more detailed explanation, have the knack of this art and after studying this instructions carefully, can implement according to this in order to do making.

Fig. 1 and Fig. 2 show the stereographic map and the three-dimensional exploded view of the utility model dust protected input media optical lens module 1 preferred embodiment respectively; It includes a base 11, an optical lens element 12 and an optics guard shield 13; Wherein, Base 11 is the assembly that is used for being installed on the outer casing bottom of input media; Be provided with sinking space 110 above it; The appropriate location, bottom surface of this sinking space 110 is provided with the light manhole appendix 111 that vertically runs through, and the lower surface system of base 11 is used for the plane that contacts with desktop, mouse pad or other object; The preferably, the upper end periphery of light manhole appendix 111 forms inward flange 112.

Cooperate Fig. 3 and shown in Figure 4 again; Said optical lens element 12 be adopt material with good leaded light character (for example acryl, glass ... etc.) moulding processes; This optical lens element 12 has the pedestal 120 of the sinking space 110 that is positioned at below and corresponding base 11; The top of pedestal 120 is a body; One side of this body has into optical lens 121, with respect to a side of going into optical lens 121 be provided with one tilt suitable angle first catoptron 122, and intrinsic diverse location be provided with respectively one tilt suitable angle second catoptron 123 and the 3rd catoptron 124; And axial first vertical lens 125 are set in body, accomplish the combination of optical lens element 12 and base 11 by the sinking space 110 of pedestal 120 being inserted base 11.

The optics guard shield 13 that the utility model provides; System is formed with a main body; This main body be provided with one possess second lens 132 head 131; The external diameter of head 131 is slightly larger than the internal diameter of the light manhole appendix 111 of base 11, and the external diameter of head 131 is provided with outward flange 134, and the top of main body is provided with a plurality of fasteners 133; Unassembled before base 11 at optical lens element 12; Earlier optics guard shield 13 is combined on the base 11; Make head 131 be packed in light manhole appendix 111, make outward flange 134 simultaneously, avoid head 131 excessively to expose base 11 lower surfaces by inward flange 112 supporting location; And make between the lower surface of surface and base 11 of second lens 132 to have a distance, light manhole appendix 111 is then by head 131 sealings; After optics guard shield 13 is combined in base 11; Again the pedestal 120 of optical lens element 12 is inserted the sinking space 110 of base 11; And then make each fastener 133 be fastened on the intrinsic embedded hole (not shown) of optical lens element 12 and fix; Make the lens 125 of winning, second lens 132 axially corresponding, promptly accomplish the optical lens module 1 of the utility model with light manhole appendix 111.

Another assembling mode of the utility model; Also can be unassembled before base 11 at optical lens element 12, earlier optics guard shield 13 is combined on the optical lens element 12, make each fastener 133 be fastened on the intrinsic embedded hole (not shown) of optical lens element 12 and fix; Again the optical lens element 12 and the assembly of optics guard shield 13 are inserted the sinking space 110 of base 11; And make head 131 be packed in light manhole appendix 111, and make outward flange 124 by inward flange 112 supporting location simultaneously, excessively expose base 11 lower surfaces to avoid head 131; And make between the lower surface of surface and base 11 of second lens 132 and have a distance; Light manhole appendix 111 is then by head 131 sealing, makes the lens 125 of winning, second lens 132 axial corresponding with light manhole appendix 111, promptly accomplishes the optical lens module 1 of the utility model.

The lens 132 of the optics guard shield 13 of the utility model can be complete transparent lens, also can be a kind of optical filterings; These lens can be convex lens or concavees lens.

The optical lens module 1 and the light transmit/receive module 2 of the utility model are installed in the shell such as input medias such as mouses together; Said smooth transmit/receive module 2 includes a circuit board 21, is electrically connected with an at least one light source 22 and a sense electronics optical assembly 23 on the circuit board 21; The preferably, said light source 22 is a kind of light emitting diode (LED), and by a light source holder 24 is fixed on the circuit board 21 that light source 22 is fixing.After optical lens module 1 and light transmit/receive module 2 are installed in the shell of input media together; What light source 22 was a straight line corresponding to optical lens element 12 goes into optical lens 121; When light source 22 is energized when luminous; The light straight line reflexes to second catoptron 123 after being projected to first catoptron 122 again, and then reflexes to the 3rd catoptron 124, second lens 132 that first lens 125 and optics guard shield 13 are passed in reflection at last fall within body surface (as desktop, mouse pad ... etc.); Body surface again second lens 132 is passed in the light reflection and first lens 125 get in the input media by 23 inductions of sense electronics optical assembly, to calculate the displacement of interpretation input media.

Behind the light manhole appendix 111 of the utility model by head 131 closed base 11 of optics guard shield 13; Can avoid dust, hair, foreign matter even liquid to get in the shell fully; Ensure the interpretation accuracy of optical input device, and reduced the trouble that input media need be cleared up.

The above person is merely in order to explain the preferred embodiment of the utility model; Be not that the attempt tool is to do any formal restriction to the utility model; Be with; All have in following any modification or change of making relevant the utility model of identical utility model spirit, all must be included in the category of the utility model intention protection.

Claims

1. a dust protected input media optical lens module is characterized in that, includes:

One base has a light manhole appendix;

One optical lens element is located at this base, and this optical lens element includes one first lens;

One optics guard shield; Be located between this base and this optical lens element, this optics guard shield have a pair of should the light manhole appendix and the head of light-permeable, make this head driving fit in this light manhole appendix; This head has second lens, and these second lens are to should first lens.

2. dust protected input media optical lens module according to claim 1 is characterized in that said second lens are transparent for fully.

3. dust protected input media optical lens module according to claim 1 is characterized in that said second lens are optical filtering.

4. dust protected input media optical lens module according to claim 1 is characterized in that said second lens are convex lens.

5. dust protected input media optical lens module according to claim 1 is characterized in that said second lens are concavees lens.

6. dust protected input media optical lens module according to claim 1 is characterized in that said second lens are aspheric surface.

7. dust protected input media optical lens module according to claim 1 is characterized in that said first lens are covered by in the head of this optics guard shield.

8. dust protected input media optical lens module according to claim 1; It is characterized in that; Have sinking space above the said base, the top of said light manhole appendix is formed with inward flange, and the head of said optics guard shield is formed with outward flange; This head driving fit is when this light manhole appendix, and said outward flange receives this inward flange supporting.

9. dust protected input media optical lens module according to claim 1 is characterized in that, after said head is combined in this light manhole appendix, has a distance between the surface of these second lens and the lower surface of this base.