CN211015427U

CN211015427U - Photoelectric input device and photoelectric input equipment

Info

Publication number: CN211015427U
Application number: CN201922184437.6U
Authority: CN
Inventors: 隰佳杰
Original assignee: Beijing Singularity Jump Technology Co ltd
Current assignee: Beijing Singularity Jump Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-07-14
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a photoelectric input device and photoelectric input equipment, wherein, photoelectric input device includes the casing, sensitization module and processing module all set up inside the casing, the casing includes first work contact surface, first work contact surface is provided with light transmission area, sensitization module includes the sensitization face, the sensitization face corresponds the setting with light transmission area, and contained angle α between sensitization face and the first work contact surface is the acute angle, sensitization module includes the image information output, processing module includes image information receiving terminal and displacement signal output, image information receiving terminal and image information output are connected, displacement signal output is connected with the treater.

Description

Photoelectric input device and photoelectric input equipment

Technical Field

The embodiment of the utility model provides a relate to electronic equipment technical field, especially relate to a photoelectric input device and photoelectric input equipment.

Background

An optical mouse detects relative movement of the mouse with respect to a surface by means of a light emitting diode and a photodiode, and unlike a mechanical mouse, obtains the position of the movement of the mouse by driving rotation of two mutually perpendicular axes by rotation of a mouse ball.

In the design of most of optical mice, the photoelectric device is required to be parallel to the bottom sensing surface, and a certain distance is kept between the sensing surface and the photoelectric device, so that the highest sensing precision can be ensured. However, such a fixed parallel design is not accurate enough for use in equipment that can be used both horizontally and at a certain inclination. Specifically, under the condition that the equipment is horizontal, if the photoelectric device is horizontal to the desktop, the equipment is in the optimal induction state, and the induction precision is highest; however, when the device is tilted, the photoelectric device will form a certain angle with the desktop, and at this time, the photoelectric device may have two situations: 1. movement can be perceived, but the movement experience is much lower than for horizontal use. 2. The movement cannot be sensed, and the photoelectric device cannot sense the movement of the equipment due to the overlarge inclination angle.

SUMMERY OF THE UTILITY MODEL

The utility model provides a photoelectric input device and photoelectric input equipment to the homoenergetic normal work under realization level and tilt state.

In a first aspect, an embodiment of the present invention provides an optoelectronic input device, including:

the device comprises a shell, a photosensitive module and a processing module, wherein the photosensitive module and the processing module are arranged in the shell;

the shell comprises a first working contact surface, and the first working contact surface is provided with a light transmission area;

the photosensitive module comprises a photosensitive surface, the photosensitive surface is arranged corresponding to the light transmission area, and an included angle α between the photosensitive surface and the first working contact surface is an acute angle;

the photosensitive module comprises an image information output end, the processing module comprises an image information receiving end and a displacement signal output end, the image information receiving end is connected with the image information output end, and the displacement signal output end is connected with the processor. Optionally, the photosensitive module includes: the device comprises a light source, an emission lens, a photosensitive chip and a receiving lens; the photosensitive surface is arranged on the receiving lens;

the light source is used for emitting a first light beam to the working surface;

the emission lens is positioned on the propagation path of the first light beam and is used for diverging the first light beam to obtain a divergent light beam;

the divergent light beam is reflected by the working surface to obtain a second light beam;

the receiving lens is positioned on the propagation path of the second light beam and used for focusing the second light beam on the photosensitive chip;

and the photosensitive chip is used for acquiring the image information of the working surface based on the second light beam imaging.

Optionally, an included angle α between the photosensitive surface and the first working contact surface is equal to or larger than-35 degrees and equal to or smaller than α degrees and smaller than 0 degree;

or the included angle α between the photosensitive surface and the first working contact surface is more than or equal to 0 degree and less than or equal to α degrees and less than or equal to 35 degrees;

wherein α < 0 ° and α > 0 ° indicate different clockwise directions from the photosensitive surface toward the first working contact surface.

Optionally, the distance between the center of the photosensitive surface and the working surface is D, wherein D is greater than or equal to 2mm and less than or equal to 3 mm.

Optionally, the transmitting lens and the receiving lens are integrally disposed in the same lens module.

Optionally, the photosensitive module further includes a package cover plate;

the packaging cover plate is located between the light source and the emitting lens and between the photosensitive chip and the receiving lens, and is used for packaging the light source and the photosensitive chip.

Optionally, the housing further comprises a non-first working interface connected to the first working interface;

the light transmission area is located at the junction of the first working contact surface and the non-first working contact surface, and the light transmission area extends to the non-first working contact surface.

Optionally, the optoelectronic input device further includes a battery, a circuit board and an interface;

the battery, the interface, the photosensitive module and the processing module are all electrically connected with the circuit board;

the circuit board is used for bearing the photosensitive module, the processing module and the interface; the battery is used for supplying power to the photosensitive module and the processing module;

the interface comprises a charging interface and/or a data transmission interface, the charging interface is electrically connected with an external power supply so that the external power supply charges the battery, and the data transmission interface is in communication connection with external display equipment so that the displacement signal is input to the external display equipment.

Optionally, the photosensitive module is electrically connected to the circuit board through a flexible circuit board.

In a second aspect, the embodiment of the present invention further provides an optoelectronic input device, including: a hand rest and any of the optoelectronic input devices of the first aspect;

the hand support is detachably connected with the photoelectric input device;

the hand support comprises a connecting contact surface and a second working contact surface, the first working contact surface is in contact with the connecting contact surface, and the second working contact surface is in contact with the working surface;

the utility model provides a technical scheme, through make the contained angle α between the photosurface of sensitization module and the first work contact surface be the acute angle for photoelectric input device is when being on a parallel with the working face and the state that inclines at the working face, all can normally work, need not to increase other extra devices in the photoelectric input device, save device space and cost.

Drawings

Fig. 1 is a schematic structural diagram of an optical-electrical input device according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an internal structure of an optoelectronic input device according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along A-A of FIG. 2;

fig. 4 is a schematic diagram of an internal structure of another optoelectronic input device according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an embodiment of an optical-electrical input device according to the present invention when tilted;

fig. 6 is a schematic structural diagram of a photosensitive module according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another photosensitive module according to an embodiment of the present invention;

FIG. 8 is an image of the working surface at different distances from the photosensitive surface;

FIG. 9 is an image of a work surface at an angle α between the light-sensing surface and the work surface;

fig. 10 is a schematic diagram of an internal structure of another optoelectronic input device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of an optical-electrical input device according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of an optoelectronic input device provided in an embodiment of the present invention, fig. 2 is a schematic structural diagram of an internal structure of an optoelectronic input device provided in an embodiment of the present invention, fig. 3 is a schematic sectional diagram of fig. 2 along a-a direction, as shown in fig. 1-3, an optoelectronic input device provided in an embodiment of the present invention includes a housing 11, a photosensitive module 12 and a processing module 13, the photosensitive module 12 and the processing module 13 are both disposed inside the housing 11, the housing 11 includes a first working contact surface 111, the first working contact surface 111 is provided with a light transmission region 21, the photosensitive module 12 includes a photosensitive surface 121, the photosensitive surface 121 corresponds to the light transmission region 21, and an included angle α between the photosensitive surface 121 and the first working contact surface 111 is an acute angle, the photosensitive module 12 includes an image information output end 71, the processing module 13 includes an image information receiving end 72 and a displacement signal output end (not shown in the figure), the image information receiving end 72 is connected to the image information output end 71, and the displacement signal output end is connected.

The photosensitive module 12 is used for acquiring image information of the working surface 22 during the movement of the photoelectric input device on the working surface 22; the processing module 13 is connected to the photosensitive module 12, and is configured to determine a displacement signal of the photoelectric input device on the plane where the working surface 22 is located according to the image information, and transmit the displacement signal to the processor, where the processor may be a wireless transmission module arranged inside the photoelectric input device or a processor implementing other functions, or may be a processor outside the photoelectric input device, such as a computer or a display device, and the displacement signal output end may be electrically connected to the processor or may be in wireless communication connection with the processor, and those skilled in the art may design the displacement signal according to actual requirements. Processing module 13 can be a Digital Signal Processing (DSP), and Processing module 13 can be integrated with photosensitive module 12, exemplarily, fig. 4 is an internal structure schematic diagram of another kind of optical input device provided by the embodiment of the present invention, as shown in fig. 4, Processing module 13 is integrated with photosensitive module 12 to form photodetector 10, and photodetector 10 can directly output a displacement signal, thereby completing the positioning of the cursor. In the process that the photoelectric input device moves on the working surface 22, the photosensitive module 12 images the working surface 22, the moving track of the photoelectric input device is recorded as a group of consecutive images shot at a high speed, finally, the processing module 13 is used for analyzing and processing a series of images shot on the moving track, the moving direction and the moving distance of the photoelectric input device are judged by analyzing the change of the positions of the characteristic points on the images, and the displacement signal of the photoelectric input device on the plane where the working surface 22 is located is determined, so that the positioning of a cursor is completed.

The photosensitive surface 121 of the photosensitive module 12 is generally parallel to the working surface 22, and the working surface 22 is spaced from the optoelectronic device to ensure the highest sensing accuracy. Such a fixed parallel design is not accurate enough for use in equipment that can be used both horizontally and at a certain inclination. However, when the photosensitive module 12 performs imaging, the distance between the working surface 22 and the photosensitive surface 121 has a certain redundant value, that is, when the distance between the working surface 22 and the photosensitive surface 121 is greater than or less than an optimal value, the imaging of the working surface 22 by the photosensitive module 12 may appear a certain blur, but if the distance does not exceed a limit value, image determination may still be performed, and a displacement signal of the photoelectric input device on the plane where the working surface 22 is located is determined. Similarly, when the photosensitive module 12 has a certain inclination, although the image of the working surface 22 formed by the photosensitive module 12 is blurred to a certain extent, the image of the working surface 22 can be determined, and a displacement signal of the photoelectric input device on the plane where the working surface 22 is located can be determined.

Fig. 5 is a schematic diagram of an embodiment of the present invention when an optoelectronic input device tilts, as shown in fig. 5, based on the above working principle, when the optoelectronic input device is required to tilt, assuming that the required tilt angle is-2 α, the light sensing module 12 can be tilted α in advance, when the optoelectronic input device tilts as a whole at-2 α, the tilt angle of the light sensing module 12 is- α, although there is a certain tilt angle, for the light sensing of the light sensing module 12, the smaller tilt angle does not affect the normal operation of the optoelectronic input device, and in the process of the optoelectronic input device working from horizontal to overall tilt at-2 α, the included angle between the light sensing module 12 and the working surface is from α to- α, the optical performance of the light sensing module 12 is consistent, it is ensured that the consistency of the usage experience after the state switching of the optoelectronic input device.

The embodiment of the utility model provides a photoelectric input device is the acute angle through the contained angle α between the photosurface 121 that makes photosensitive module 12 and first work contact surface 111 for photoelectric input device is when being in a state that is on a parallel with working face 22 and inclines in working face 22, and homoenergetic normally works, need not to increase other extra devices among the photoelectric input device, save device space and cost.

Optionally, the included angle α between the photosensitive surface 121 and the first working contact surface 111 satisfies-35 ° or more and α or less than 0 °, or the included angle α between the photosensitive surface 121 and the first working contact surface 111 satisfies 0 ° or more and α or more and 35 °, where α or less than 0 ° and α or more than 0 ° indicate that the directions from the photosensitive surface 121 to the first working contact surface 111 are different hour directions.

Illustratively, as shown in fig. 3, α is 18 °, the photosensitive surface 121 is oriented clockwise with respect to the first working contact surface 111. optionally, the included angle α between the photosensitive surface 121 and the first working contact surface 111 satisfies-13 ° ≦ α < 0 °, alternatively, the included angle α between the photosensitive surface 121 and the first working contact surface 111 satisfies 0 ° ≦ α ≦ 13 °, wherein the performance of the optical input device in both horizontal and tilted states is ensured by providing the appropriate included angle α.

Fig. 6 is a schematic structural diagram of a photosensitive module according to an embodiment of the present invention, as shown in fig. 6, optionally, the photosensitive module 12 includes: the light source 122, the emitting lens 123, the light sensing chip 124 and the receiving lens 125, and the light sensing surface 121 is disposed on the receiving lens 125. The light source 122 is configured to emit a first light beam 41 toward the working surface 22, the emitting lens 123 is located on a propagation path of the first light beam 41 and configured to diverge the first light beam 41 to obtain a divergent light beam 42, the divergent light beam 42 is reflected by the working surface 22 to obtain a second light beam 43, and the receiving lens 125 is located on a propagation path of the second light beam 43 and configured to focus the second light beam 43 on the photosensitive chip. The photosensitive chip 124 is used for acquiring image information of the working surface 22 based on the second light beam imaging.

The first light beam 41 emitted from the light source 122 is diverged and refracted by the emitting lens 123 to illuminate the working surface 22, the second light beam 43 reflected by the working surface 22 is optically sensed by the photosensitive chip 124, a frame of picture is obtained each time, the processing module 13 performs picture characteristic comparison, and then a displacement signal of the photoelectric input device on the plane where the working surface 22 is located is obtained.

With continued reference to fig. 6, optionally, the transmit lens 123 and the receive lens 125 are integrally disposed in the same lens module, thereby reducing the space occupied by the lenses.

Fig. 7 is a schematic structural view of another photosensitive module according to an embodiment of the present invention, as shown in fig. 7, optionally, the distance between the center of the photosensitive surface 121 and the working surface 22 is D, where D is greater than or equal to 2mm and less than or equal to 3 mm.

For example, the light sensing surface 121 is disposed on the receiving lens 125, as shown in fig. 7, the receiving lens 125 is a convex lens, the light sensing surface 121 is a surface of the receiving lens 125 close to the working surface 22, and the distance D between the center of the light sensing surface 121 and the working surface 22 has an optimal value, for example, 2.4mm, fig. 8 is an image of the working surface when the light sensing surface and the working surface are at different distances, as shown in fig. 8, when the light sensing surface 121 is parallel to the working surface 22, the image is sharpest when D is 2.4mm, the image is weaker when D is 2.6mm, and the sharpness is worst when D is 2.8mm, D has little influence on the quality of the image when D is within the interval of 2.3-2.5mm, the optoelectronic input device can still accurately obtain a displacement signal of the optoelectronic input device on the plane where the working surface 22 is located according to the obtained image information of the working surface 22, fig. 9 is an angle α between the light sensing surface and the working surface 22, and the optoelectronic input device is inclined at a certain distance from the working surface 22, and the image of the working surface 22, thereby ensuring that the optoelectronic input device is inclined at a proper angle, and the optical image of the working surface is horizontal range of the working surface 121.

With continued reference to fig. 7, optionally, the distance between the center of the photo sensor chip 124 and the working surface 22 is Y, wherein Y is 5.72mm ≦ Y ≦ 5.98mm, and for example, Y ≦ 5.85mm, and the performance of the optoelectronic input apparatus in the horizontal and inclined states is ensured by maintaining the proper distance between the center of the photo sensor chip 124 and the working surface 22.

With continued reference to fig. 7, optionally, the distance between the center of the photo-sensing chip 124 and the optical axis of the receiving lens 125 in the direction parallel to the optical axis of the receiving lens 125 is X, where X is less than or equal to 0.076mm, and the performance of the optoelectronic input device in the horizontal and inclined states is ensured by maintaining a proper distance between the center of the photo-sensing chip 124 and the optical axis of the receiving lens 125.

With continued reference to fig. 7, optionally, the light sensing module 12 further includes a package cover 126, which is located between the light source 122 and the emission lens 123, and is also located between the light sensing chip 124 and the receiving lens 125, for packaging the light source 122 and the light sensing chip 124.

Fig. 7 is a schematic cross-sectional view, which does not show the light source 122 and the emission lens 123, and the light source 122 and the photosensitive chip 124 are packaged by the package cover 126, so that the light source 122 and the photosensitive chip 124 are protected, and the interference of the light source 122 on the photosensitive chip 124 is avoided.

Fig. 10 is a schematic diagram of an internal structure of another optoelectronic input device according to an embodiment of the present invention, as shown in fig. 10, and optionally, the housing 11 further includes a non-first working contact surface 112 connected to the first working contact surface 111. The light-transmitting region 21 is located at the boundary between the first working contact surface 111 and the non-first working contact surface 112, and the light-transmitting region 21 extends to the non-first working contact surface 112.

Wherein, extending the light-transmitting region 21 to the non-first working contact surface 112 can improve the working performance of the optoelectronic input device when the optoelectronic input device is inclined at a large angle.

As shown in fig. 2, optionally, the optoelectronic input device provided in the embodiment of the present invention further includes a battery 131, a circuit board 132, and an interface 133. The battery 131, the interface 133, the photosensitive module 12, and the processing module 13 are all electrically connected to the circuit board 132. The circuit board 132 is used for carrying the photosensitive module 12, the processing module 13 and the interface 133, and the battery 131 is used for supplying power to the photosensitive module 12 and the processing module 13. The interface 133 includes a charging interface for electrically connecting to an external power source to charge the battery 131, and/or a data transmission interface for communicating with an external display device to input a displacement signal to the external display device.

The thickness of the circuit board 132 may be 1.6mm, and the circuit board is not too thick and heavy while ensuring strength. The photoelectric input device can not include a data transmission interface, and the displacement signal is wirelessly transmitted to the external display device by arranging the WIFI module and/or the Bluetooth module in the photoelectric input device.

Alternatively, the photosensitive module 12 is electrically connected to the circuit board 132 through the flexible circuit board 23.

The photosensitive module 12 is electrically connected to the circuit board 132 through the flexible circuit board 23, so as to adjust the angle of the photosensitive module 12.

The embodiment of the present invention provides a photoelectric input device, which is characterized in that the included angle α between the photosensitive surface 121 of the photosensitive module 12 and the first working contact surface 111 is an acute angle, so that the photoelectric input device can normally work when being in a state parallel to the working surface 22 and inclined to the working surface 22, and the distance D between the center of the photosensitive surface 121 and the working surface 22 is within a proper range, thereby ensuring the performance of the photoelectric input device under the horizontal and inclined states.

Based on the same inventive concept, an embodiment of the present invention further provides an optoelectronic input apparatus, including a hand rest and an optoelectronic input device provided in any of the above embodiments, and the explanation of the same or corresponding structure and terms as those of the above embodiments is not repeated herein, fig. 11 is a schematic structural diagram of an optoelectronic input apparatus provided in an embodiment of the present invention, as shown in fig. 11, the hand rest 31 is detachably connected to the optoelectronic input device 32, the hand rest 31 includes a connection contact surface 311 and a second working contact surface 312, the first working contact surface 111 is in contact with the connection contact surface 311, the second working contact surface 312 is in contact with the working surface 22, an included angle between the connection contact surface 311 and the working surface 22 is a1, an included angle between the working surface 121 and the working surface 22 is a2, wherein 0 ≦ a1 ≦ 2 α |, 0 ≦ a2 ≦ α |, a direction of the connection contact surface 311 pointing to the working surface 22 and a direction of the first working contact surface 111 pointing to the first working contact surface 121 are opposite.

In this case, for example, the included angle α between the light-sensing surface 121 and the first working contact surface 111 is-35 °, at which time, 0 ° ≦ a1 ≦ 70 °, so that-35 ° ≦ a2 ≦ 35 °, or the included angle α ° between the light-sensing surface 121 and the first working contact surface 111 is 35 °, at which time, -70 ° ≦ a1 ≦ 0 °, so that-35 ° ≦ a2 ≦ 35 °, thereby ensuring the performance of the optical-electrical input device when assembled with the hand rest.

The embodiment of the utility model provides a photoelectric input device makes the contained angle between the sensitization face of sensitization module and the first work contact surface be the acute angle, makes photoelectric input device when being in the state that is on a parallel with the working face and inclines to the working face, all can normally work to make photoelectric input device can work in two kinds of states, one kind is that the hand rest does not assemble with photoelectric input device, and photoelectric input device is small and exquisite portable; one is that the hand rest is assembled with the photoelectric input device, so that the photoelectric input device is in line with the human engineering and the burden of the hand is reduced.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. An optoelectronic input device, comprising:

the photosensitive module comprises an image information output end, the processing module comprises an image information receiving end and a displacement signal output end, the image information receiving end is connected with the image information output end, and the displacement signal output end is connected with the processor.

2. The optoelectronic input apparatus of claim 1, wherein the photosensitive module comprises: the device comprises a light source, an emission lens, a photosensitive chip and a receiving lens; the photosensitive surface is arranged on the receiving lens;

3. An optoelectronic input device as in claim 1 wherein the angle α between the light sensing surface and the first working contact surface satisfies-35 ° ≦ α ≦ 0 °;

4. An optoelectronic input device as claimed in claim 1, wherein the center of the photosensitive surface is spaced from the working surface by a distance D, wherein D is greater than or equal to 2mm and less than or equal to 3 mm.

5. An optoelectronic input device as recited in claim 2, wherein the transmit lens and the receive lens are integrally disposed in a same lens module.

6. The optoelectronic input apparatus of claim 5, wherein the photoactive module further comprises an encapsulating cover;

7. An optoelectronic input device as in claim 1, wherein the housing further comprises a non-first working contact surface coupled to the first working contact surface;

8. An optoelectronic input device as recited in claim 1, further comprising a battery, a circuit board, and an interface;

9. The input device of claim 8, wherein the photosensitive module is electrically connected to the circuit board by a flexible circuit board.

10. An optoelectronic input device, comprising: a hand rest and an optoelectronic input device as claimed in any one of claims 1 to 9;

the hand support is detachably connected with the photoelectric input device;

the included angle between the connecting contact surface and the working surface is A1, the included angle between the photosensitive surface and the working surface is A2, wherein A1 is not less than 0 and not more than 2 α, A2 is not less than 0 and not more than α, and the direction of the connecting contact surface pointing to the working surface and the direction of the photosensitive surface pointing to the first working contact surface are opposite clockwise directions.