CN100337182C

CN100337182C - Optical mechanism improvement for optical mouse

Info

Publication number: CN100337182C
Application number: CNB031251374A
Authority: CN
Inventors: 王庆彬; 曾立文
Original assignee: Sunplus Technology Co Ltd
Current assignee: Sunplus Technology Co Ltd
Priority date: 2003-05-12
Filing date: 2003-05-12
Publication date: 2007-09-12
Anticipated expiration: 2023-05-12
Also published as: CN1549195A

Abstract

The present invention relates to an improved optical mechanism for an optical mouse, which is assembled in the inner space of the optical mouse. The surface of the position adjacent to the periphery of a light sensor is coated with a layer of black paint or is treated by a surface treatment process to form a light absorbing layer used for absorbing reflecting light sources which are not directly projected on the light sensor, so that the light sensor can receive light shadows with relative high spots to obtain high bright positions and low dim positions to increase contrast, and the image judgment efficiency of the optical mouse is improved indeed.

Description

The optical facilities of optical mouse

Technical field

The invention relates to the improvement of a kind of mouse mechanism, refer to a kind of optical facilities that are applicable to optical mouse especially.

Background technology

In existing optical mouse technology field, its principle mainly is by judging the formed inhomogeneous or protruding action situation of judging optical mouse of nick in using planar (for example desktop or mouse pad) surface.

See also existing optical facilities and the one-tenth phase synoptic diagram thereof that is mounted on the optical mouse inner space of Fig. 1 and Fig. 2, show that the optical facilities in the existing optical mouse 5 mainly include a light supply apparatus 51, a guiding device 52 and an OPTICAL SENSORS 53.Light supply apparatus 51 can project an incident light source I ₂To first lens 521 of guiding device 52, and, be projected on the reflecting surface 6 with the opening 50 that passes optical mouse 5 bottoms via the reflection of first prism 523 and second prism 524.Because reflecting surface 6 is uneven, so incident light source I ₂After touching reflecting surface 6, formed reflection source R ₂To all the winds reflect, and come back reflective on guiding device 52 formed cavity 525 surfaces and 6 of reflectings surface.Wherein, reflex to the reflection source R of second lens 522 ₂Will be led to OPTICAL SENSORS 53, judge the state of reflecting surface 6, and then confirm optical mouse 5 action situations for OPTICAL SENSORS 53.

Yet, in the optical facilities of above-mentioned existing optical mouse, because reflection source R ₂Can in cavity 525, come back reflective, so OPTICAL SENSORS 53 received light sources are not incident light source I ₂The reflection source R that is produced when touching reflecting surface 6 for the first time ₂, also be included in cavity 525 surfaces and constantly reflect the light source that is produced with reflecting surface 6.Thus, will make the brightness contrast of the light source that OPTICAL SENSORS 53 is received reduce, and cause optical mouse 5 to find the inhomogeneous of reflecting surface 6 or the existence that nick is protruding than difficulty.More than be not very good.

The inventor whence is because of in this, and originally in the spirit of positive invention, the utmost point is thought a kind of " optical facilities of optical mouse " that can address the above problem, and several times research experiment is eventually to the invention of finishing this Jiahui common people.

Summary of the invention

Fundamental purpose of the present invention is that a kind of optical facilities of optical mouse are being provided, and with can highlight the plane more and had inhomogeneous or characteristic that nick is protruding, judges usefulness in order to the image of promoting optical mouse.

Another object of the present invention is that a kind of optical facilities of optical mouse are being provided, and is that utilization lighting skill is to produce the shadow of high relatively point, so that highlighted hanging down secretly contrasts more obvious.

For reaching above-mentioned purpose, the optical facilities of optical mouse proposed by the invention be the inner space that is mounted on an optical mouse, and the bottom of optical mouse offer an opening.Above-mentioned optical facilities improvement mainly includes a light supply apparatus, a guiding device, an OPTICAL SENSORS and a light-absorption layer.Light supply apparatus is in order to project an incident light source; Guiding device then can be guided incident light source, uses so that the opening of incident light source bottom optical mouse is projected to a reflecting surface; OPTICAL SENSORS is installed in the opening top, in order to receive the reflection source that incident light source is produced on reflecting surface; Light-absorption layer then is coated with/adheres to and is adjacent on the OPTICAL SENSORS surface on every side, in order to absorb the reflection source that directly is not projected to OPTICAL SENSORS.

Because the present invention constructs novelty, can provide on the industry and utilize, and truly have the enhancement effect, so apply for patent of invention in accordance with the law.

Description of drawings

Fig. 1 is the cut-open view of existing optical mouse inner space;

Fig. 2 is the one-tenth phase synoptic diagram of incident light source in the optical facilities of existing optical mouse;

Fig. 3 is the cut-open view that the embodiment of the invention is applied to optical mouse inside;

Fig. 4 is the cut-open view of embodiment of the invention guiding device;

Fig. 5 is the one-tenth phase synoptic diagram of incident light source in the optical facilities of the embodiment of the invention.

Embodiment

See also the enforcement state of Fig. 3 to Fig. 5 preferred embodiment of the present invention.Wherein, the bottom of Fig. 3 display optical mouse 1 offers an opening 10, and the inner space group is provided with one group of optical facilities, and the optical facilities of present embodiment include a light supply apparatus 11, a guiding device 12, an OPTICAL SENSORS 13 and a light-absorption layer 14.Wherein, light supply apparatus 11 is preferably a LED crystal particle (LED Die), or can be other equivalent luminophors; Light-absorption layer 14

Being preferably blackwash, is the surface that direct coating/adhere to desire absorbs light source, also can see through certainly on the surface that desire absorbs light source carry out the surface-treated program, to form light-absorption layer 14.

As shown in Figure 3, the incident light source I that projected of present embodiment light supply apparatus 11 ₁Be to be set in parallel with reflecting surface 2, and incident light source I ₁First lens, 121, the first lens 121 that just can corresponding be projected to guiding device 12 can be with incident light source I ₁After the focusing, see through the reflection of first prism 123 and second prism 124, with incident light source I ₁Accurately guide, make its opening 10 to be projected on the reflecting surface 2 by optical mouse 1.Wherein, be noted that light supply apparatus 11 also can be arranged at the guiding device top, only guiding device need be done appropriateness and adjust design, is beneficial to receive incident light source I ₁, and with incident light source I ₁Led and be projected to reflecting surface 2; Certain light supply apparatus 11 also tiltable is arranged at optical mouse 1 inside, in order to incident light source I ₁Directly (or via after lens focus) be projected on the reflecting surface 2.

Because reflecting surface 2 has the characteristic that a little notes of the ancient Chinese are inhomogeneous or nick is protruding, therefore as parallel incident light source I ₁After touching reflecting surface 2, will produce the reflection source R that complex trace reflexes to different directions ₁In the 4th figure, the light-absorption layer 14 that can find out present embodiment is to be coated with/to adhere in the cavity 125 of guiding device 12, be adjacent on the surface of second lens 124.Next see also Fig. 5, show that all directly are not projected to the reflection source R of second lens 122 ₁Applied/light-absorption layer 14 of adhering to cavity 125 surfaces of guiding device 12 is absorbed, so can not produce any reflex again; And reflex to the reflection source R of second lens 122 ₁, then will be focused on the back, be projected to OPTICAL SENSORS 13 via second lens 122.Thus, OPTICAL SENSORS 13 can receive the shadow with high relatively point by this lighting skill, and low spot is darker so that high point is brighter, and make the light contrast more obvious, and more can highlight the protruding characteristic of nick that reflecting surface 2 is had, thereby can improve the image judgement usefulness of optical mouse 1.

In addition, when the optical facilities improvement group of present embodiment was located at optical mouse 1 inner space, the opening of cavity 125 was the openings 10 that are right against optical mouse 1 bottom, and second lens 122 are to be coaxial setting with OPTICAL SENSORS 13.And in the above-described embodiments, because reflection source R ₁First surface that touches is exactly cavity 125 surfaces, so light-absorption layer 14 is to be coated with/to adhere to cavity 125 surfaces; If, cause reflection source R along with guiding device 12 or other mechanisms of optical mouse 1 improves to some extent ₁Can not be projected to cavity 125 surfaces, then light-absorption layer 14 will be coated with/adhere to reflection source R ₁On first surface that touches, be generally on the surface that is adjacent to around the OPTICAL SENSORS 13, in order to guarantee directly not to be projected to the reflection source R of OPTICAL SENSORS 13 ₁Can be absorbed by light-absorption layer 14 fully.

To sum up institute is old, and no matter the present invention all shows it totally different in the feature of prior art with regard to purpose, means and effect, in fact is one to have the invention of practical value, earnestly asks your juror to perceive, and grants quasi patent early, so that Jiahui society, the true feeling moral just.Only it should be noted that above-mentioned many embodiment only give an example for convenience of explanation, the interest field that the present invention advocated is as the criterion from stating with the claim folding, but not only limits to the foregoing description.

Claims

1. the optical facilities of an optical mouse are mounted on the inner space of an optical mouse, and the bottom of this optical mouse offers an opening, and above-mentioned optical facilities is characterized in that, comprising:

One light supply apparatus is in order to project an incident light source;

One guiding device, comprise one first lens, one second lens, and at least one prism, and be formed with a cavity in the bottom, these first lens are in order to after this incident light source is focused on, see through this prism and be projected to a reflecting surface, these second lens are to be arranged in this cavity, in order to this incident light source is projected to an OPTICAL SENSORS after the reflection source that is produced on this reflecting surface focuses on, and in these optical facilities are mounted on this optical mouse the time, the opening of this cavity is the opening that is right against this optical mouse bottom, and these second lens are to be coaxial setting with this OPTICAL SENSORS, in order to guide this incident light source, so that the opening of this incident light source bottom this optical mouse is projected to this reflecting surface;

One OPTICAL SENSORS is installed in above the opening of this optical mouse bottom, in order to receive this reflection source; And

One light-absorption layer is coated with/adheres on contiguous this OPTICAL SENSORS surface on every side, in order to absorb the reflection source that directly is not projected to this OPTICAL SENSORS.

2. the optical facilities of optical mouse as claimed in claim 1, it is characterized in that, wherein, this light-absorption layer is coated with/adheres in the cavity of this guiding device on the surface around contiguous these second lens, in order to absorb the reflection source that directly is not projected to these second lens.

3. the optical facilities of optical mouse as claimed in claim 1 is characterized in that, wherein, this light supply apparatus is a LED crystal particle.

4. the optical facilities of optical mouse as claimed in claim 1 is characterized in that, wherein, this light-absorption layer is a blackwash.

5. the optical facilities of optical mouse as claimed in claim 1 is characterized in that, wherein, this light-absorption layer produces via the surface treatment program is carried out on the surface around this OPTICAL SENSORS.