Optical potential device

Abstract

The invention discloses an optical potential device which comprises a light-emitting element and a light-sensitive element, and a peep-proof membrane is arranged between the light-emitting element and the light-sensitive element. Compared with the prior art, the peep-proof optical potential device has the advantages that the peep-proof membrane is adopted to replace a shading plate of an existing optical potential device, and the louver type light-transmitting unit is arranged on the peep-proof membrane, so that when the peep-proof membrane is overturned, the intensity of light passing through the light-transmitting unit can be stably and uniformly changed; therefore, the resistance value generated by the photosensitive element can be correspondingly and stably changed, and the condition that the resistance value is instantly increased or decreased is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a potential device, in particular to an optical potential device. BACKGROUND

[0002] At present, the existing optical potential device is generally composed of a light-emitting element, a light-sensitive element and a shielding plate between the two, and is realized by shielding or transmitting light. When the shielding mode is used, the amount of light passing through the edge of the shielding plate is changed by swinging or rotating the shielding plate, so as to change the amount of light received by the light-sensitive element, thereby forming different resistance values. When the transmitting light mode is used, a light-transmitting hole with gradually changing size at both ends needs to be arranged on the shielding plate, and the amount of light passing through the light-transmitting hole is changed by moving, swinging or rotating the shielding plate, so as to change the amount of light received by the light-sensitive element, thereby forming different resistance values. However, since the light beam emitted by the existing light-emitting element is actually cone-shaped and divergent, the central light is relatively strong, and the peripheral light is relatively weak, resulting in that although the shielding area of the shielding plate changes gradually and smoothly from large to small or from small to large during the flipping process, the amount of light passing through the edge of the shielding plate or the light-transmitting hole will appear unsmoothly and gradually. Figure 15 As shown in the working principle diagram of the optical potential device using the shielding mode, a is the initial position of the shielding plate B, b is the direction of the shielding amount change, and c is the direction of the shielding amount change. When the shielding plate B is flipped from a to b, a large amount of central light of the light-emitting element 1 is blocked instantaneously, and vice versa, when the shielding plate B is flipped from a to c, a large amount of central light of the light-emitting element 1 is released instantaneously, so that the resistance value generated by the light-sensitive element 2 changes instantaneously. When this optical potential device is applied to the game handle button, the corresponding game action force will change instantaneously, which cannot accurately and stably control the game action. Therefore, it is urgent for the technical personnel in the field to develop an optical potential device. SUMMARY

[0003] The present application is to solve the above problems, and provides an optical potential device.

[0004] The above-mentioned purpose of the present application is realized by the following technical scheme: an optical potential device, comprising a light-emitting element and a light-sensitive element, and a privacy film arranged between the light-emitting element and the light-sensitive element.

[0005] Further, the privacy film comprises a substrate layer, and a privacy structure layer arranged on the substrate layer, the privacy structure layer comprises shielding units and light-transmitting units arranged alternately and in parallel, forming a louver structure.

[0006] Further, the cross section of the light-transmitting unit is isosceles trapezoidal, but is not limited to isosceles trapezoidal.

[0007] Further, the interval between the lower bases of the adjacent light transmission units is 5-80um, which is obviously smaller than the beam diameter of the light emitting element.

[0008] Further, the upper base width of the light transmission unit is 15-50um, the lower base width is 20-75um, and the height is 25-100um.

[0009] Further, the privacy film is placed between the light emitting element and the photosensitive element in an inclined manner.

[0010] Further, the optical potential device comprises a shell, a rotating shaft is arranged on the shell, the privacy film is fixed on the rotating shaft, a circuit board is arranged in the shell, and the light emitting element and the photosensitive element are connected with the circuit board. Thus, a modular structure is formed, which is convenient for application in a potential meter, including but not limited to a key potential meter, a knob potential meter and a rocker potential meter.

[0011] Further, a privacy film fixing frame is arranged on the rotating shaft, and the privacy film is fixed on the privacy film fixing frame.

[0012] Compared with the prior art, the privacy film is used to replace the light shielding plate of the optical potential device. When the privacy film is turned over, the light intensity through the light transmission units can change smoothly and uniformly, so that the resistance value generated by the photosensitive element can change smoothly and correspondingly, and the resistance value will not change suddenly. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of one side of the first embodiment of the present application.

[0014] Figure 2 is a structural schematic diagram of the other side of the first embodiment of the present application.

[0015] Figure 3 is a planar structural schematic diagram of one side of the first embodiment of the present application.

[0016] Figure 4 is a structural schematic diagram of the privacy film in the present application.

[0017] Figure 5 is a demonstration diagram of the privacy film in the present application being turned over to one side.

[0018] Figure 6 is a demonstration diagram of the privacy film in the present application being turned over to the other side.

[0019] Figure 7 is an exploded structural schematic diagram of one side of the second embodiment of the present application.

[0020] Figure 8This is an exploded structural diagram of the other side of the second embodiment of the present invention.

[0021] Figure 9 This is a schematic diagram of the external structure of one side of the second embodiment of the present invention.

[0022] Figure 10 This is a schematic diagram of the external structure of the other side of the second embodiment of the present invention.

[0023] Figure 11 This is a schematic diagram of the present invention applied to a common button potentiometer.

[0024] Figure 12 This is a schematic diagram of the present invention applied to a trigger key potentiometer.

[0025] Figure 13 This is a schematic diagram of the present invention applied to a rotary potentiometer.

[0026] Figure 14 This is a schematic diagram of the present invention applied to a rocker potentiometer.

[0027] Figure 15 This is a schematic diagram illustrating the working principle of an existing optical potential device that uses a light-shielding method. Detailed Implementation

[0028] The invention will now be described in further detail with reference to the accompanying drawings.

[0029] Example 1: As Figure 1 , Figure 2 and Figure 3 As shown, an optical potential device includes a light-emitting element 1 and a photosensitive element 2, with a privacy film 3 disposed between the light-emitting element 1 and the photosensitive element 2. Figure 4 As shown, the privacy film 3 includes a substrate layer 301, on which a privacy structure layer 302 is provided. The privacy structure layer 302 includes light-blocking units 302-1 and light-transmitting units 302-2 arranged alternately and parallel to each other, forming a venetian blind structure. The light-transmitting unit 302-2 is a light-transmitting micro-slit. The cross-section of the light-transmitting unit 302-2 is an isosceles trapezoid, but is not limited to an isosceles trapezoid; it can also be rectangular or triangular, etc. The distance between the lower bases of adjacent light-transmitting units 302-2 is 5-80 μm, significantly smaller than the beam diameter of the light-emitting element 1. The upper base width of the light-transmitting unit 302-2 is 15-50 μm, the lower base width is 20-75 μm, and the height is 25-100 μm. Simultaneously, the privacy film 3 is placed at an angle between the light-emitting element 1 and the photosensitive element 2.

[0030] like Figure 5 , Figure 6As shown, the working principle of this invention is as follows: The initial position of the privacy film 3 is tilted and centrally placed between the light-emitting element 1 and the photosensitive element 2, preventing light from reaching the photosensitive element 2 through the periphery of the privacy film 3. Simultaneously, it ensures that the parallel light-blocking unit 302-1 and light-transmitting unit 302-2 are parallel to the rotation axis of the privacy film 3. Only when the privacy film 3 rotates can its louver structure alter the amount of light passing through it. When the privacy film 3 rotates to one side, the light passing through the light-transmitting unit 302-2 smoothly and evenly increases from less to more; when the privacy film 3 rotates to the other side, the light passing through the light-transmitting unit 302-2 smoothly and evenly decreases from more to less. This causes the resistance value generated by the photosensitive element to change smoothly accordingly, without any sudden increases or decreases.

[0031] Example 2: As Figures 7 to 10 As shown, an optical potentiometer includes a light-emitting element 1, a photosensitive element 2, a privacy film 3, and a housing 4. The housing 4 has a pivot mounting hole 401 and a pivot 5 is mounted thereon. A privacy film mounting bracket 6 is mounted on the pivot 5, and the privacy film 3 is fixed to the privacy film mounting bracket 6. A circuit board 7 is also provided inside the housing 4, and the light-emitting element 1 and the photosensitive element 2 are connected to the circuit board 7. This forms a modular structure, facilitating its application in potentiometers, including but not limited to button potentiometers (including ordinary buttons and trigger buttons, respectively as shown in the image). Figure 11 , Figure 12 As shown), rotary potentiometer (such as...) Figure 13 (as shown) and rocker potentiometer (as shown) Figure 14 (As shown).

[0032] In practical applications, whether or not a reset torsion spring is provided between the rotating shaft 5 and the housing 4 depends on actual needs. That is, when the external structure does not have a reset mechanism, a reset device needs to be provided between the rotating shaft 5 and the housing 4; when the external structure has a reset mechanism, a reset device is not needed between the rotating shaft 5 and the housing 4. The reset device can be a torsion spring or a pair of magnetic attracting elements respectively mounted on the housing 4 and the rotating shaft.

[0033] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An optical potential device comprising a light emitting element and a light sensitive element, characterized by: The light emitting element and the light sensitive element are provided with a privacy film.

2. An optical potential device according to claim 1, characterized in that: The privacy film comprises a substrate layer, and a privacy structure layer provided on the substrate layer, the privacy structure layer comprises light shielding units and light transmitting units arranged alternately and in parallel, forming a louver structure.

3. An optical potential device according to claim 2, wherein: The cross section of the light transmitting unit is isosceles trapezoidal.

4. An optical potential device according to claim 2, wherein: The distance between the lower bases of adjacent light transmitting units is 5-80um, which is obviously smaller than the beam diameter of the light emitting element.

5. An optical potential device according to claim 2, wherein: The upper base width of the light transmitting unit is 15-50um, the lower base width is 20-75um, and the height is 25-100um.

6. An optical potential device according to claim 1, wherein: The privacy film is placed between the light emitting element and the light sensitive element in an inclined manner.

7. An optical potential device according to claim 1, wherein: The optical potential device comprises a shell, a rotating shaft provided on the shell, a privacy film fixed on the rotating shaft, a circuit board provided in the shell, and the light emitting element and the light sensitive element connected with the circuit board.

8. An optical potential device according to claim 7, wherein: The rotating shaft is provided with a privacy film fixing frame, and the privacy film is fixed on the privacy film fixing frame.

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