JP3118803U - Optical mouse and optical device - Google Patents

Abstract

An optical mouse capable of enhancing the sensitivity and enhancing the sensing performance of the optical mouse is provided.
The optical mouse includes a case and an optical device. The optical device is provided at the bottom of the case, and further includes a light guide element 2, a first circuit board 3 installed on the light guide element, a first optical sensor 4 installed on the light guide element, The LED light-emitting element 5 installed on one side of the light guide element and electrically connected to the first circuit board, and installed on the first circuit board, the first inclined surface and the second inclined surface are A fixed seat 6, a second circuit board 7 installed on the second inclined surface, and a laser installed on the first inclined surface and electrically connected to the second circuit board A light emitting element 8 and a second photosensor 9 electrically connected to the second circuit board are included. Thereby, this optical mouse can be applied on various surfaces.
[Selection] Figure 3

Description

  The present invention relates to an optical mouse and an optical device thereof, and the optical mouse has two sets of optical devices that sense different light sources, and the optical mouse can be operated on various surfaces.

  In the technical area of the optical mouse, which is a conventional technique, the principle is that incident light is projected onto the table surface or the mouse pad using a light source device (for example, a light emitting diode), and the reflected light generated on the use plane is absorbed. By determining the “unevenness” or subtle unevenness of the surface, the operating state of the optical mouse can be controlled.

  In light of the prior art pointed out in Taiwan Patent No. 504638, FIG. 1 shows a local exploded view of an optical device in a conventional optical mouse. The optical device of the conventional optical mouse includes a bottom case 1a having an opening 10a, a light guide element 2a having a lens 20a, a first reflecting surface 22a, and a second reflecting surface 24a installed in the opening 10a of the bottom case 1a. And a circuit board 3a provided on the light guide element 2a. The circuit board 3a has a hole 30a on the lens 20a, and the optical sensor 4a is installed on the hole 30a of the circuit board 3a. The optical sensor 4a can obtain an image of a plane on which the optical mouse has moved, and can analyze the screen obtained by the optical sensor 4a using an electric circuit (not shown) to determine the displacement of the optical mouse. The light emitting diode 5a is installed on the circuit board 3a. The light emitting diode 5a is used for the light source of the light sensor 4a, and the first reflecting surface 22a protrudes out of the hole 30a, so that the first reflecting surface 22a is positioned between the light emitting diode 5a and the light sensor 4a. Finally, the light cover 6a is also installed on the circuit board 3a, so that the light emitted from the light-emitting diode 5a can be prevented from directly entering the optical sensor 4a.

  FIG. 2 is a cross-sectional view of the optical device in FIG. The light beam 11a is emitted by the light emitting diode 5a, and a part of the light beam 11a is blocked by the light cover 6a, but most of the light beam 11a is directly emitted in the direction facing the light emitting diode 5a. As long as the direction in which the light emitting diode 5a faces is the first reflecting surface 22a, most of the light beam 11a is emitted toward the first reflecting surface 22a and is directed downward by the first reflecting surface 22a. The light ray 11a reaches the opening 10a of the bottom case 1a and shines brightly on the flat surface 13a. The light beam 11a incident on the flat surface 13a is modulated and reflected by the surface characteristics of the flat surface 13a to become a reflected light beam 12a. Subsequently, the reflected light beam 12a is directly focused on the optical sensor 4a by the lens 20a, and the optical sensor 4a can obtain a screen of the plane 13a continuously by using the reflected light beam 12a, and analyze this continuous screen. Thus, the moving direction and distance of the optical mouse can be determined.

  After the light signal of the light emitting diode 5a is emitted radially, it is transmitted to the optical sensor 4a only through the first reflecting surface 22a, the second reflecting surface 24a, and the lens 20a. Therefore, a part of the optical signal is transmitted. Disappear during the process. In other words, the optical signal emitted from the light emitting diode 5a is not completely transmitted to the optical sensor 4a. When the optical signal is weak, the sensitivity and analysis level of the optical sensor 4a are reduced, which affects the performance of the optical mouse.

  Also, when using a traditional optical mouse on a smooth surface, it is usually quite difficult to use, and the movement of the mouse cannot be accurately positioned following the transmitted optical image of a personal computer.

  Thus, the traditional optical mouse still has drawbacks to be solved and methods for improvement.

  Therefore, based on a wealth of practical experience over many years, the inventor devoted himself to the application of research and science, and finally showed the present invention that is rational in design and effective in improving the defects of the prior art. .

  The main object of the present invention is to provide an optical device for an optical mouse. The optical mouse has an optical device for sensing two different light sources, thereby enhancing the sensing performance of the optical mouse and increasing the sensitivity. That is.

  Another object of the present invention is to provide an optical mouse, particularly an optical mouse that can be operated on a variety of different surfaces.

  In order to achieve the above object, the present invention provides an optical mouse and an optical device thereof, the optical mouse including an upper lid and a bottom case, and the bottom case includes a first opening and a second opening. A case in which two open ports are installed and an optical device installed on the bottom case. The optical device includes a light guide element installed on the first opening, a third opening, and a fourth opening, the third opening corresponding to the light guide element, Four open ports are installed on one side of the light guide element, the first circuit board corresponding to the second open port, the first optical sensor installed on the third open port, and the above An LED light emitting element electrically connected on the first circuit board, and installed at the upper end of the fourth open port, and having a first inclined surface and a second inclined surface, the second inclined surface and the above A fixed seat having an obtuse angle formed by the first inclined surface, a second seat that is installed at the upper end of the second inclined surface, has a fifth opening, and the fifth opening corresponds to the second inclined surface. A circuit board and a laser which is installed at the upper end of the first inclined surface and is electrically connected to the second circuit board A light emitting element and the second light sensor installed at the fifth opening and electrically connected to the second circuit board are provided, and the mouse moves the incident light emitted from the laser light emitting element. After being modulated by planar reflection of the path, the light is received by the second photosensor. Therefore, the optical mouse can be applied on various surfaces.

  In order that the features and technical contents of the present invention may be further understood, a detailed description of the present invention and the accompanying drawings are shown below, but the attached drawings are only used for reference and explanation and do not limit the present invention. .

  FIG. 3 and FIG. 4 are an exploded perspective view and an inclined assembly view of an optimal embodiment of the optical mouse according to the present invention. The present invention provides an optical mouse having a case 1 and an optical device 100.

  The case 1 includes an upper lid 11 and a bottom case 12. A first opening 121 and a second opening 122 are installed on the bottom case 12.

  The optical device 100 is installed on the bottom case 12, and the optical device 100 includes a light guide element 2, a first circuit board 3, a first light sensor 4, a light emitting diode element 5, and a fixed seat 6. The second circuit board 7, the laser light emitting element 8, the second light sensor 9 and the display lamp 10 are included.

  The light guide element 2 is installed on the first opening 121. The light guide element 2 includes a lens 20 and a light guide part 21, and each side surface facing the lens 20 corresponds to the light sensor 4 and the first opening 121, and one side of the light guide part 21 is This corresponds to the LED light emitting element 5.

  The first circuit board 3 has a third opening 31 and a fourth opening 32, the third opening 31 corresponds to the light guide element 2, and the fourth opening 32 is the second opening. Corresponds to the mouth 122.

  The first light sensor 4 is installed on the third opening 31.

  The LED light emitting element 5 is installed on one side of the light guide element 2 and is electrically connected to the first circuit board 3.

  As shown in FIG. 6, the light emitted from the LED light emitting element 5 passes through the light guide 21 of the light guide element 2 and is incident on the plane of the path traveled by the mouse. After reflection modulation, the light guide element again. 2 passes through the second lens 20 and is then absorbed by the first optical sensor 4. Accordingly, the LED light emitting element 5 projects incident light on the table surface or the mouse pad, and absorbs the reflected light generated on the use plane, thereby determining the uneven surface roughness of the optical mouse. The operating state can be controlled.

  The fixed seat 6 is installed on the fourth opening 32. The fixed seat 6 has a first inclined surface 61 and a second inclined surface 62, and an obtuse angle γ (see FIG. 5) is formed by the second inclined surface 62 and the first inclined surface 61. The obtuse angle γ is most preferably 150 ° ± 1 °. The fixed seat 6 is integrally formed. A cavity 63 is formed inside the fixed seat 6.

  The fixing seat 6 includes a base portion 64, a projection portion 66 and at least one second fixing portion 68. Further, the first fixing portion 65 is extended upward from one side of the base portion 64. The protrusion 66 protrudes above the base 64, the first inclined surface 61 and the second inclined surface 62 are formed at the apex of the protrusion 66, and the cavity 63 is formed on the first inclined surface 61. A fitting groove 67 communicated vertically is provided, the second inclined surface 62 is a transparent surface, and the transparent surface allows light reflected from the surface of the path traveled by the mouse to pass therethrough. The at least one second fixing portion 68 is installed at the apex of the protruding portion 66, and each of the second fixing portion 68 and the first fixing portion 65 is fixed to both opposing ends of the second circuit board 7. Further, a claw portion 69 is provided at each of the bottom portions of both ends of the base portion 64, and the fixing seat 6 is fixed to the first circuit board 3 by the claw portion 69.

  The second circuit board 7 is installed on the second inclined surface 62. The second circuit board 7 has a fifth opening 71, and the fifth opening 71 corresponds to the second inclined surface 62. The fifth open port 71 and the second inclined surface 62 are parallel to each other so that the second optical sensor 9 on the second circuit board 7 can receive the plane reflected light of the path traveled directly by the mouse.

  As shown in FIG. 5, the laser light emitting element 8 is installed on the first inclined surface 61 and is electrically connected to the second circuit board 7. The laser light emitting element 8 emits light at a preset incident angle α. This incident angle is determined by the designer. The designer can select the incident angle according to the protruding object surface characteristics, and make the incident light stand out according to the material surface characteristics, and the degree to which the reflected light is modulated by the surface characteristics of the object is further increased. , Can increase the sensitivity of the optical mouse. Incident light illuminates the surface on which the optical mouse has moved, and then is directly incident on the second optical sensor 9 at a reflection angle β. The optical device 100 of the optical mouse can increase the sensitivity of the optical mouse to the object surface by using the laser light emitting element 8 as a light source. Therefore, even if the optical mouse moves on a smooth surface, accurate displacement is achieved. Information can be transmitted to a personal computer. When the optical mouse moves on a smooth surface, the optical device 100 can be automatically or manually switched to a model using the laser light emitting element 8 as a light source, thereby improving the sensing performance of the optical mouse and increasing the sensitivity. Can be increased. As a result, the user can operate on a variety of different surfaces.

  The second light sensor 9 is installed in the fifth opening 71 and is electrically connected to the second circuit board 7. The incident light emitted from the laser light emitting element 8 is a path traveled by the mouse. Is received by the second optical sensor 9 after being modulated by plane reflection. Thereby, as described above, the optical mouse can be applied to various surfaces.

  The present invention further includes a display lamp 10 electrically connected to the first circuit board 3, and the display lamp 10 is used to display a state in which the laser light emitting element 8 is in operation.

  In this way, the optical device 100 can sense images of various surfaces that have moved accurately and sensitively, and can accurately sense various surfaces.

  In summary, the present invention provides an optical mouse having the laser light emitting element 8 and the LED light emitting element 5 at the same time, and can increase the sensitivity of the optical mouse to the object surface. Even when moving on a smooth surface, accurate displacement information can be transmitted to a personal computer.

  The foregoing description is merely the preferred embodiment of the present invention and is not intended to limit the present invention. It goes without saying that various modifications can be made without departing from the scope of the claims of the present invention. Accordingly, the invention is limited only by the following claims.

It is a local exploded view which shows the optical apparatus in the optical mouse concerning a prior art. It is sectional drawing which shows the optical apparatus in FIG. It is a three-dimensional exploded view showing an optimal embodiment of the optical mouse according to the present invention. It is a three-dimensional assembly diagram showing an optimal embodiment of the optical mouse according to the present invention. It is sectional drawing which shows the optimal Example of the optical apparatus of the optical mouse which concerns on this invention. FIG. 6 is another cross-sectional view showing an optimum embodiment of the optical device of the optical mouse according to the present invention.

Explanation of symbols

[Conventional]
DESCRIPTION OF SYMBOLS 1a Bottom case 10a Open port 11a Light beam 12a Reflected light beam 13a Plane 2a Light guide element 20a Lens 22a First reflective surface 24a Second reflective surface 3a Circuit board 30a Hole 4a Optical sensor 5a Light emitting diode 6a Optical cover
[Invention]
DESCRIPTION OF SYMBOLS 1 Case 11 Upper lid 12 Bottom case 121 1st opening 122 Second opening 100 Optical apparatus 2 Light guide element 20 Lens 21 Light guide 3 First circuit board 31 Third opening 32 Fourth opening 4 First light Sensor 5 LED light emitting element 6 Fixed seat 61 First inclined surface 62 Second inclined surface 63 Cavity body 64 Base portion 65 First fixing portion 66 Projection portion 67 Fitting groove 68 Second fixing portion 69 Claw portion 7 Second circuit board 71 Fifth Open port 8 Laser light emitting element 9 Second optical sensor 10 Display lamp α Incident angle β Reflection angle γ Obtuse

Claims (14)

An optical device for an optical mouse, installed on the bottom case of the optical mouse, wherein the bottom case has a first open port and a second open port,
A light guide element installed on the first opening;
A first circuit board having a third opening and a fourth opening, the third opening corresponding to the light guide element, and the fourth opening corresponding to the second opening;
A first light sensor installed on the third opening;
An LED light emitting element installed on one side of the light guide element and electrically connected on the first circuit board;
A fixed seat that is installed at the upper end of the fourth opening and has a first inclined surface and a second inclined surface, and an obtuse angle is formed by the second inclined surface and the first inclined surface;
A second circuit board installed at the upper end of the second inclined surface, having a fifth opening, wherein the fifth opening corresponds to the second inclined surface;
A laser emitting element installed at the upper end of the first inclined surface and electrically connected to the second circuit board;
The second photosensor installed at the fifth opening and electrically connected to the second circuit board,
An optical device for an optical mouse, wherein the incident light emitted from the laser light emitting element is received by the second optical sensor after being modulated by plane reflection along a path along which the mouse has moved.   The light guide element further includes a lens and a light guide part, and each side surface facing the lens corresponds to the light sensor and the first opening, and one side of the light guide part corresponds to the LED light emitting element. 2. The optical device of an optical mouse according to claim 1, wherein the optical device is an optical device.   2. The optical device of an optical mouse according to claim 1, wherein the obtuse angle γ is 150 ° ± 1 °.   The optical device for an optical mouse according to claim 1, wherein the fixed seat is integrally formed. A cavity is formed inside the fixed seat, and the fixed seat further includes a base portion from which the first fixed portion extends upward,
Protruding upward from the base, the first inclined surface and the second inclined surface are formed at the apex, and a fitting groove that communicates perpendicularly to the cavity is provided on the first inclined surface, A projecting portion whose two inclined surfaces are transparent surfaces;
5. The optical device according to claim 4, further comprising: at least one second fixing portion that is installed at an apex of the protruding portion and is fixed to both opposing ends of the second circuit board together with the first fixing portion. Mouse optical device.   6. The optical device of an optical mouse according to claim 5, wherein a claw portion is provided on each of the bottom portions of both ends of the base portion.   2. The optical system according to claim 1, further comprising a display lamp electrically connected to the first circuit board, wherein the display lamp is used to display a state in which the laser light emitting element is in operation. Mouse optical device. An optical mouse, including a top lid and a bottom case, and a case in which a first opening and a second opening are installed in the bottom case;
An optical device installed on the bottom case,
The optical device further includes
A light guide element installed on the first opening;
A first circuit board having a third opening and a fourth opening, the third opening corresponding to the light guide element, and the fourth opening corresponding to the second opening;
A first light sensor installed on the third opening;
An LED light emitting element installed on one side of the light guide element and electrically connected on the first circuit board;
A fixed seat that is installed at the upper end of the fourth opening and has a first inclined surface and a second inclined surface, and an obtuse angle is formed by the second inclined surface and the first inclined surface;
A second circuit board installed at the upper end of the second inclined surface, having a fifth opening, wherein the fifth opening corresponds to the second inclined surface;
A laser emitting element installed at the upper end of the first inclined surface and electrically connected to the second circuit board;
The second photosensor installed at the fifth opening and electrically connected to the second circuit board,
The optical mouse, wherein the incident light emitted from the laser light emitting element is received by the second optical sensor after being modulated by plane reflection along a path along which the mouse is moved.   The light guide element further includes a lens and a light guide part, each of the side surfaces facing the lens corresponds to the light sensor and the first opening, and one side of the light guide part corresponds to the LED light emitting element. The optical mouse according to claim 8, wherein:   The optical mouse according to claim 8, wherein the obtuse angle γ is 150 ° ± 1 °.   The optical mouse according to claim 8, wherein the fixed seat is integrally formed. A cavity is formed inside the fixed seat, and the fixed seat further includes a base portion from which the first fixed portion extends upward,
Protruding upward from the base, the first inclined surface and the second inclined surface are formed at the apex, and a fitting groove that communicates perpendicularly to the cavity is provided on the first inclined surface, A projecting portion whose two inclined surfaces are transparent surfaces;
The optical mouse according to claim 11, further comprising: at least one second fixing portion that is installed at an apex of the protruding portion and is fixed to both opposite ends of the circuit board together with the first fixing portion.   The optical mouse according to claim 12, wherein a claw portion is provided on each of the bottom portions at both ends of the base portion.   The optical system according to claim 8, further comprising a display lamp electrically connected to the first circuit board, wherein the display lamp is used to display a state in which the laser light emitting element is in operation. mouse.

Images