Optical potential device

Abstract

The utility model 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 diaphragm 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 diaphragm, so that when the peep-proof diaphragm is overturned, the intensity of light passing through the light-transmitting unit can be stably and uniformly changed, and the peep-proof diaphragm is prevented from being damaged. 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 utility model relates to a potential device, in particular to an optical potential device. Background Art

[0002] At present, the existing optical potential devices generally consist of a light-emitting element, a photosensitive element, and a shielding flat plate therebetween, and are realized by means of light shielding or light transmission. When the light shielding method is adopted, the amount of light passing over the edge of the shielding flat plate is changed by swinging or rotating the light shielding plate, so as to change the amount of light received by the photosensitive element, thereby forming different resistance values. When the light transmission method is adopted, a light-transmitting hole with gradually changing sizes at both ends needs to be provided on the shielding flat plate, and the amount of light passing through the light-transmitting hole is changed by moving, swinging or rotating the light shielding plate, so as to change the amount of light received by the photosensitive element, thereby forming different resistance values. However, since the light beam emitted by the existing light-emitting element is actually in a conical divergent shape, the light intensity in the middle is strong while the light intensity around is weak. Although the shielding area of the shielding flat plate changes smoothly in a gradual manner from large to small or from small to large during the flipping process, the amount of light passing over the edge of the shielding flat plate or passing through the light-transmitting hole will show an unstable gradual change. As Figure 15 shown in the schematic diagram of the working principle of the optical potential device adopting the light shielding method, the position a is the initial position of the shielding flat plate B, the position b is the direction of increasing light shielding amount, and the position c is the direction of decreasing light shielding amount. When the shielding flat plate B is flipped from the position a to the position b, a large amount of central light of the light-emitting element 1 will be blocked instantly. On the contrary, when the shielding flat plate B is flipped from the position a to the position c, a large amount of central light of the light-emitting element 1 will be released instantly, resulting in an instant increase or instant decrease in the resistance value generated by the photosensitive element 2. When this optical potential device is applied to the game handle button, the corresponding game action strength in the game will instantaneously increase or instantaneously decrease, and the game action cannot be accurately and stably controlled. Therefore, researching and developing an optical potential device has become an urgent problem for those skilled in the art. Content of the Utility Model

[0003] The utility model is to solve the above deficiencies and provides an optical potential device.

[0004] The above object of the utility model is achieved by the following technical solutions: an optical potential device, comprising a light-emitting element and a photosensitive element, and an anti-peeping diaphragm is arranged between the light-emitting element and the photosensitive element.

[0005] Further, the anti-peeping diaphragm includes a base material layer, and an anti-peeping structure layer is provided on the base material layer. The anti-peeping structure layer includes a light shielding unit and a light transmission unit which are alternately arranged in parallel in sequence, forming a louver structure.

[0006] Further, the cross-section of the light transmission unit is an isosceles trapezoid, but is not limited to an isosceles trapezoid.

[0007] Further, the distance between the lower bases of adjacent light-transmitting units is 5 - 80 μm, which is significantly smaller than the beam diameter of the light-emitting element.

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

[0009] Further, the anti-peeping film is placed obliquely between the light-emitting element and the photosensitive element.

[0010] Further, the optical potentiometer device includes a housing, on which a rotating shaft is provided. The anti-peeping film is fixed on the rotating shaft, and a circuit board is provided inside the housing. The light-emitting element and the photosensitive element are connected to the circuit board. Thus, a modular structure is formed, which is convenient for application to potentiometers, including but not limited to button potentiometers, knob potentiometers, and rocker potentiometers.

[0011] Further, an anti-peeping film fixing bracket is provided on the rotating shaft, and the anti-peeping film is fixed on the anti-peeping film fixing bracket.

[0012] The advantages of the present utility model compared with the prior art are as follows: The present utility model uses an anti-peeping film to replace the light-shielding plate of the existing optical potentiometer device. Since the anti-peeping film has light-transmitting units in the form of louvers, when the anti-peeping film is flipped, the intensity of the light passing through the light-transmitting units can change smoothly and evenly, enabling the resistance value generated by the photosensitive element to change correspondingly smoothly without sudden increase or decrease. Description of the Drawings

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

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

[0015] Figure 3 is a schematic plan view of one side of the first embodiment of the present utility model.

[0016] Figure 4 is a schematic structural diagram of the anti-peeping film in the present utility model.

[0017] Figure 5 is a demonstration diagram of the anti-peeping film flipping to one side in the present utility model.

[0018] Figure 6 is a demonstration diagram of the anti-peeping film flipping to the other side in the present utility model.

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

[0020] Figure 8 It is a schematic exploded view of the other side of the second embodiment of the present utility model.

[0021] Figure 9 It is a schematic external structure view of one side of the second embodiment of the present utility model.

[0022] Figure 10 It is a schematic external structure view of the other side of the second embodiment of the present utility model.

[0023] Figure 11 It is a schematic view of the present utility model applied to an ordinary button potentiometer.

[0024] Figure 12 It is a schematic view of the present utility model applied to a trigger key potentiometer.

[0025] Figure 13 It is a schematic view of the present utility model applied to a rotary potentiometer.

[0026] Figure 14 It is a schematic view of the present utility model applied to a joystick potentiometer.

[0027] Figure 15 It is a schematic diagram of the working principle of an existing optical potentiometer device using a light-shielding method. Detailed implementation mode

[0028] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1: As shown in Figure 1 , Figure 2 and Figure 3 , an optical potentiometer device includes a light-emitting element 1 and a photosensitive element 2, and an anti-peeping diaphragm 3 is provided between the light-emitting element 1 and the photosensitive element 2. As shown in Figure 4 , the anti-peeping diaphragm 3 includes a base material layer 301, and an anti-peeping structure layer 302 is provided on the base material layer 301. The anti-peeping structure layer 302 includes light-shielding units 302-1 and light-transmitting units 302-2 that are alternately arranged in parallel in sequence, forming a louver structure. The light-transmitting unit 302-2 is a light-transmitting micro-gap, and the cross-section of the light-transmitting unit 302-2 is an isosceles trapezoid, but is not limited to an isosceles trapezoid, and may also be a rectangle or a triangle, etc. The distance between the lower bases of adjacent light-transmitting units 302-2 is 5-80 um, which is 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 um, the lower base width is 20-75 um, and the height is 25-100 um. At the same time, the anti-peeping diaphragm 3 is placed obliquely between the light-emitting element 1 and the photosensitive element 2.

[0030] As shown in Figure 5 , Figure 6As shown in the figure, the working principle of the present utility model is as follows: The initial position of the anti-peeping diaphragm 3 is placed obliquely and centered between the light-emitting element 1 and the photosensitive element 2, so that light cannot reach the photosensitive element 2 through the periphery of the anti-peeping diaphragm 3. At the same time, it is ensured that the light-shielding unit 302-1 and the light-transmitting unit 302-2 arranged in parallel are parallel to the flipping axis direction of the anti-peeping diaphragm 3. Only when the anti-peeping diaphragm 3 rotates can the light amount passing through the anti-peeping diaphragm 3 be changed by using its shutter structure. When the anti-peeping diaphragm 3 flips to one side, the light passing through the light-transmitting unit 302-2 of the anti-peeping diaphragm 3 smoothly and evenly increases from less to more. When the anti-peeping diaphragm 3 flips to the other side, the light passing through the light-transmitting unit 302-2 of the anti-peeping diaphragm 3 smoothly and evenly decreases from more to less. Thus, the resistance value generated by the photosensitive element changes smoothly accordingly, without instantaneous increase or decrease.

[0031] Embodiment 2: As Figures 7 to 10 shown, an optical potential device includes a light-emitting element 1, a photosensitive element 2, an anti-peeping diaphragm 3, and a housing 4. A shaft mounting hole 401 is provided on the housing 4, and a shaft 5 is installed. An anti-peeping diaphragm fixing frame 6 is provided on the shaft 5, and the anti-peeping diaphragm 3 is fixed to the anti-peeping diaphragm fixing frame 6. A circuit board 7 is further provided inside the housing 4, and the light-emitting element 1 and the photosensitive element 2 are connected to the circuit board 7. Thus, a modular structure is formed, which is convenient for application to a potentiometer. The potentiometer includes, but is not limited to, a button potentiometer (including a common button and a trigger button, as shown in Figure 11 , Figure 12 respectively), a rotary potentiometer (as shown in Figure 13 ), and a rocker potentiometer (as shown in Figure 14 ).

[0032] In actual application, it is determined whether a reset torsion spring is provided between the shaft 5 and the housing 4 according to actual needs. That is, when the external structure does not have a reset mechanism, a reset device needs to be provided between the shaft 5 and the housing 4. When the external structure has a reset mechanism, there is no need to provide a reset device between the shaft 5 and the housing 4. The reset device can adopt a torsion spring or a pair of magnetic components that are respectively installed on the housing 4 and the shaft and can attract each other.

[0033] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An optical potential device, comprising a light-emitting element and a photosensitive element, characterized in that: A privacy filter film is provided between the light-emitting element and the photosensitive element.

2. The optical potential device according to claim 1, wherein: The privacy filter film includes a substrate layer, and a privacy protection structure layer is provided on the substrate layer. The privacy protection structure layer includes a light-shielding unit and a light-transmitting unit that are alternately arranged in parallel in sequence to form a louver structure.

3. An optical potential device according to claim 2, characterized in that: The cross-section of the light-transmitting unit is an isosceles trapezoid.

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

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

6. An optical potential device according to claim 1, characterized in that: The privacy filter film is placed obliquely between the light-emitting element and the photosensitive element.

7. An optical potential device according to claim 1, characterized in that: The optical potential device includes a housing, and a rotating shaft is provided on the housing. The privacy filter film is fixed to the rotating shaft, and a circuit board is provided inside the housing. The light-emitting element and the photosensitive element are connected to the circuit board.

8. An optical potential device according to claim 7, wherein: A privacy filter film fixing bracket is provided on the rotating shaft, and the privacy filter film is fixed to the privacy filter film fixing bracket.

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