TWI711063B - Optical keyswitch - Google Patents

Abstract

An optical keyswitch includes a housing having a movable portion, a key shaft movable disposed on the housing, a resilient member disposed in the housing and a switch module including a circuit board, an emitter, and a receiver. The key shaft is selectively in a non-pressed position and a pressed position. The emitter emits an optical signal along a light path to the receiver. When the key shaft is in the non-pressed position, the movable portion has a first spatial relation with the light path and the receiver receives the optical signal of a first intensity. When the key shaft moves, in response to a pressing force, from the non-pressed position to the pressed position, the key shaft compresses the resilient member and pushes the movable portion to move, so the optical signal received by the receiver has a second intensity different from the first intensity and the switch module is triggered to generate a triggering signal.

Description

Optical switch button

The present invention generally relates to an optical switch button. Specifically, the present invention relates to an optical switch button that activates a switch in response to a pressing action that changes the receiving state of an optical signal.

Membrane switch keys and mechanical keys are commonly used key types in conventional keyboards. The main difference between membrane switch buttons and mechanical buttons is the circuit structure that generates signals. Generally speaking, a membrane switch button uses a membrane circuit layer as a switch element for signal generation. When the membrane circuit layer is triggered by pressing the keycap, the upper circuit layer deforms so that the switch contacts of the upper circuit layer contact the corresponding switch contacts of the lower circuit layer. At this point, the membrane switch is turned on to generate a signal. However, the film circuit layer is easily damaged after frequent use or improper force, and it is difficult to repair, and when the user presses the keycap to trigger the film circuit layer, there is a lack of clear feedback of the gap, resulting in a poor pressing feel and cannot satisfy the use The operator’s sense of manipulation.

The mechanical key is a switch element that uses the conduction of the metal sheet and the metal contact as a signal generation. However, metal sheets and metal contacts are prone to wear due to impacts, which affects the service life of the keys. Water vapor may also cause corrosion of the metal sheets or metal contacts, resulting in poor conduction and affecting the stability of the keys. Furthermore, the conventional mechanical keys are generally not suitable for use in portable electronic devices, such as notebook computers, which require high thinning due to their complicated structure and large volume.

One object of the present invention is to provide an optical switch button, which uses a light emitter A switch module composed of a light receiver and a switch module, and changes the receiving state of the light signal with the pressing stroke through the parts in the button, providing a fast and accurate trigger function.

Another object of the present invention is to provide an optical switch key, which integrates the key structure of the optical switch in a low space, and utilizes a movable member or movable part that can be laterally displaced to selectively change the receiving intensity of the optical signal to reduce the vertical direction The space requirement is suitable for portable electronic devices.

In one embodiment, the optical switch button of the present invention includes a housing, a movable shaft, an elastic member, and a switch module. The housing has a deformable part; the movable shaft is movably disposed on the housing, and in response to the pressing force, the movable shaft It can move up and down in the unpressed position and the pressed position along the movement path; the elastic member is arranged in the housing, and the elastic member is coupled to the movable shaft. When the pressing force is removed, the elastic member returns the movable shaft to the unpressed position ; The switch module includes a circuit board, a light transmitter and a light receiver, the light transmitter and the light receiver are electrically connected to the circuit board, and the light transmitter emits light signals, and the light signals reach the light receiver along the light transmission path. When the movable shaft is in the unpressed position, the deformable part and the light transmission path have a first spatial relationship, and the light signal received by the light receiver is the first intensity; when the movable shaft moves from the unpressed position to the pressed position in response to the pressing force When the movable shaft moves along the movement path to compress the elastic member and push the deformable part to move, so that the deformable part and the light transmission path no longer have the first spatial relationship, so that the optical signal received by the light receiver is the second Intensity, and the second intensity is different from the first intensity to trigger the switch module to generate a trigger signal.

In one embodiment, when the movable shaft is in the unpressed position, the deformable portion enters the light transmission path less, the amount of the deformable portion blocking the light signal is lower, and the light signal received by the light receiver is the first intensity; When the shaft is at the pressing position, the deformable part moves laterally away from the movement path, the deformable part enters the light transmission path more, and the deformable part blocks the light signal with a higher amount of light. The optical signal received by the receiver has a second intensity, so that the second intensity is less than the first intensity.

In one embodiment, the movable shaft has an action part, which protrudes along the movement path and corresponds to the deformable part. When the movable shaft is in the unpressed position, the action part and the deformable part at least partially overlap in the direction of the parallel movement path; When the shaft moves along the movement path and pushes against the deformable part to move laterally, the acting part and the deformable part are at least partially contacted in the direction perpendicular to the movement path.

In one embodiment, the acting portion has a first inclined surface, and the deformable portion has a second inclined surface. The first inclined surface corresponds to the second inclined surface. When the movable shaft moves along the movement path, the first inclined surface moves relative to the second inclined surface, so that the The deformed part moves sideways.

In one embodiment, the circuit board further has a avoidance space. When the movable shaft is at the pressing position, the end of the acting part exceeds the deformable part and enters the avoidance space.

In one embodiment, the housing is formed by a combination of an upper housing and a lower housing. The upper housing has a through hole and an upper engaging portion. The movable shaft is movably inserted into the through hole to position the elastic member. The deformable portion It is arranged on the lower shell, and the lower shell has a lower engaging portion for engaging with the upper engaging portion so that the upper shell is connected to the lower shell.

In one embodiment, the housing is formed by a combination of an upper housing and a lower housing. The upper housing has a through hole and an upper engaging portion. The movable shaft is movably inserted into the through hole to position the elastic member. The deformable portion It is arranged on the upper casing, and the lower casing has a lower clamping portion for clamping with the upper clamping portion so that the upper casing is connected to the lower casing.

In one embodiment, the housing further has a grating portion, the grating portion has a grating hole and is located between the light emitter and the light receiver, and the deformable portion has a horizontal extension axis. When the movable axis is in the unpressed position, the horizontal extension axis does not pass Grating hole; when the deformable part moves laterally away from the motion path, the horizontal extension axis passes through the grating hole.

In one embodiment, the circuit board further has a positioning hole, the lower casing has a positioning post, and the positioning post is inserted into the positioning hole to position the casing on the circuit board.

In one embodiment, the light switch button of the present invention further includes a light guide rod and a backlight light source, wherein the light guide rod corresponding to the elastic member is disposed in the housing, and the backlight light source corresponding to the light guide rod is electrically connected to the circuit board to provide light emitting toward the movable axis.

In another embodiment, the optical switch button of the present invention includes a housing, a movable shaft, an elastic member, a switch module, and a shielding member. The movable shaft is movably disposed on the housing, and the movable shaft can be along the The movement path moves up and down at the unpressed position and the pressed position; the elastic member is arranged in the housing, and the elastic member is coupled to the movable shaft. When the pressing force is removed, the elastic member returns the movable shaft to the unpressed position; The group includes a circuit board, a light transmitter and a light receiver, the light transmitter and the light receiver are electrically connected to the circuit board, and the light transmitter emits light signals, and the light signals reach the light receiver along the light transmission path; the shielding member is arranged at case. When the movable shaft is in the unpressed position, the shielding member and the light transmission path have a first spatial relationship, and the light signal received by the light receiver is the first intensity; when the movable shaft moves from the unpressed position to the pressed position in response to the pressing force , The movable shaft moves along the movement path to compress the elastic member and drive the shielding member to move, so that the shielding member and the light transmission path no longer have the first spatial relationship, so that the light signal received by the light receiver is of the second intensity, and The second intensity is different from the first intensity, and the trigger switch module is used to generate a trigger signal.

In one embodiment, when the movable shaft is in the unpressed position, the shielding member enters the light transmission path less, and the shielding member blocks the light signal to a lower amount, and the light signal received by the light receiver is the first intensity; when the movable shaft is located When the position is pressed, the shielding member moves laterally away from the movement path, and the shielding member enters the light transmission path more. The shielding member blocks a higher amount of light signals. The light signal received by the light receiver is of the second intensity, making the second intensity less than The first strength.

In one embodiment, when the movable shaft is in the unpressed position, the shield is located in the light transmission path, the shield blocks the light signal, and the light signal received by the light receiver is the first intensity; when the movable shaft is in the pressed position, the shield The component moves laterally away from the light transmission path, and the light signal received by the light receiver has the second intensity, so that the second intensity is greater than the first intensity.

In one embodiment, the housing is formed by a combination of an upper housing and a lower housing, the upper housing has a through hole and an upper engaging portion, the movable shaft is movably inserted in the through hole to position the elastic member, and the lower housing It has a lower engaging portion for engaging with the upper engaging portion so that the upper shell is connected to the lower shell, and the shell further has a grating part, which has a grating hole and is located between the light emitter and the light receiver The shielding member has a shielding part, and the shielding part selectively shields the grating hole with respect to the light emitting part corresponding to the movement of the movable shaft.

In another embodiment, the optical switch button of the present invention includes a keycap, a supporting mechanism, a recovery mechanism, and a switch module, wherein the supporting mechanism is arranged under the keycap and supports the up/down movement of the keycap; the recovery mechanism is arranged under the keycap , To provide a restoring force to make the keycap return to the position before it is pressed. The restoring mechanism includes a housing and an elastic member. The elastic member is arranged in the housing and the housing has a deformable part; the switch module includes a circuit board, The optical transmitter and the optical receiver, the optical transmitter and the optical receiver are electrically connected to the circuit board, and the optical transmitter emits optical signals corresponding to the optical receiver. When the key cap is not pressed, the light signal received by the light receiver is the first intensity; when the key cap is pressed, the key cap drives the support mechanism to move, so that the elastic member is compressed and the protrusion moves against the deformable part to change the light. The optical signal received by the receiver has a second intensity, and the second intensity is different from the first intensity, and the switch module is triggered to generate a trigger signal.

In one embodiment, the supporting mechanism includes an inner bracket and an outer bracket. The inner bracket is pivotally connected to the inner side of the outer bracket to form a scissor-type supporting mechanism, and the supporting mechanism has a protrusion that extends from the inner bracket toward the inner side of the inner bracket. .

In one embodiment, when the support mechanism is moved by pressing the keycap, the protrusion moves against the deformable portion to at least partially block the light signal, so that the second intensity is less than the first intensity.

In one embodiment, when the keycap is not pressed, the protrusion and the deformable part at least partially overlap in a direction parallel to the movement direction of the keycap; when the keycap is pressed, the protrusion pushes against the deformable part to move laterally, and the protrusion At least partly in contact with the deformable portion in the direction of movement of the vertical keycap.

In one embodiment, the protruding portion has a first inclined surface, and the deformable portion has a second inclined surface. The first inclined surface corresponds to the second inclined surface. When the keycap drives the support mechanism to move, the first inclined surface moves relative to the second inclined surface to make the The deformed part moves sideways.

In one embodiment, the housing further has a grating part, which is located between the light emitter and the light receiver. When the key cap is pressed, the support mechanism pushes the deformable part to move to change the relative position of the deformable part and the grating part .

Compared with the prior art, the optical switch button of the present invention uses the optical transmitter and the optical receiver as the switch signal, and the receiving state of the optical signal is changed by any suitable part of the button according to the pressing stroke to achieve a fast and accurate pressing signal , And can be applied to various key structures for portable electronic devices. Furthermore, the optical switch button of the present invention can have a grating structure to avoid interference from external light to improve the accuracy of operation, and can control the trigger position when pressed to reduce the trigger point error. In addition, the optical switch button of the present invention utilizes a laterally-displaceable shielding member (or a deformable part) to selectively change the receiving intensity of the optical signal, so as to reduce the space requirement in the vertical direction.

10, 10’, 11, 11’‧‧‧Optical switch button

100, 100’‧‧‧Shell

110, 110’‧‧‧ lower shell

111‧‧‧Deformable part

1111‧‧‧Second Incline

1112‧‧‧Connecting part

1113‧‧‧Blocking part

112‧‧‧Lower card joint

113‧‧‧Positioning column

114‧‧‧Positioning Department

1141‧‧‧Containing Department

115‧‧‧Limiting part

116‧‧‧Impact Department

117‧‧‧Open

118‧‧‧Grating Department

1181‧‧‧Grating hole

120、120’‧‧‧Upper shell

121‧‧‧Through hole

122‧‧‧Upper card joint

123‧‧‧Deformable part

1231‧‧‧Second Incline

1232‧‧‧Connecting part

1233‧‧‧Blocking part

130‧‧‧Activity axis

131‧‧‧Action Department

1311‧‧‧First Incline

132‧‧‧ Actuation Department

133‧‧‧Limiting part

134‧‧‧Joint

140‧‧‧Elastic parts

141‧‧‧Spring body

142‧‧‧Positioning Department

143‧‧‧Extension arm

150‧‧‧Switch Module

151‧‧‧Circuit board

152‧‧‧Light Transmitter

153‧‧‧Optical Receiver

154‧‧‧Jack

155‧‧‧Avoidance Space

160‧‧‧Backlight unit

161‧‧‧Light Guide

162‧‧‧Backlight

170‧‧‧Shield

171‧‧‧Positioning part

172‧‧‧Force part

1721‧‧‧Slope

173‧‧‧Shadow

20‧‧‧Optical switch button

200‧‧‧Shell

210‧‧‧Lower shell

211a, 211b‧‧‧Card slot

30, 30’, 31, 31’‧‧‧Optical switch button

310‧‧‧Keycap

320‧‧‧Supporting mechanism

321‧‧‧Inner Stent

322‧‧‧Outer bracket

323‧‧‧Protrusion

3231‧‧‧First Incline

330‧‧‧Response agency

331、331’‧‧‧Shell

332‧‧‧Elastic parts

333‧‧‧Deformable part

3331‧‧‧Second Incline

3332‧‧‧Connecting part

3333‧‧‧Blocking part

334、334’‧‧‧Upper shell

3341‧‧‧Through hole

3342‧‧‧Upper card joint

3343‧‧‧Notch

3344‧‧‧Notch

3345‧‧‧Left arm

3346‧‧‧right arm

335、335’‧‧‧Lower shell

3351‧‧‧Lower clamping part

3352‧‧‧Positioning part

3353, 3354‧‧‧Supporting Department

336‧‧‧Activities Department

3361‧‧‧Limiting part

3362‧‧‧ Actuation Department

337‧‧‧Grating Department

338‧‧‧Deformable part

3381‧‧‧Second Incline

3382‧‧‧Connecting part

3383‧‧‧Blocking part

340‧‧‧Switch Module

341‧‧‧Circuit board

3411‧‧‧Open

3412‧‧‧Avoid Space

342‧‧‧Optical Transmitter

343‧‧‧Optical Receiver

350‧‧‧Bottom plate

351、352‧‧‧Connector

360‧‧‧Backlight

370‧‧‧Hand feeling elastic

371‧‧‧Positioning Department

372‧‧‧Extension Arm

400, 400’‧‧‧Shell

410, 410’‧‧‧ lower shell

420‧‧‧Upper shell

421‧‧‧Deformation Department

4211‧‧‧Connecting part

4212‧‧‧Blocking part

411‧‧‧Deformable part

4111‧‧‧Connecting part

4112‧‧‧Blocking part

530, 530’‧‧‧Response agency

531、531’‧‧‧Shell

534‧‧‧Upper shell

535、535’‧‧‧Lower shell

533‧‧‧Deformable part

5331‧‧‧Connecting part

5332‧‧‧Blocking part

538‧‧‧Deformable part

5381‧‧‧Connecting part

5382‧‧‧Shadow

L‧‧‧Horizontal extension axis

1A and 1B are respectively exploded schematic diagrams of the optical switch button of the first embodiment of the present invention at different viewing angles.

Fig. 1C is a schematic top view of the optical switch button of Fig. 1A without showing the upper shell assembly.

FIG. 1D is a schematic cross-sectional view including the upper casing along the tangent line AA of FIG. 1C.

2A and 2B are schematic diagrams of the lower casing of an embodiment of the present invention from different viewing angles.

Fig. 2C is a schematic diagram showing the relative positions of the lower housing and the optical transmitter and the optical receiver in Fig. 2B.

3A to 3D are cross-sectional schematic diagrams of the optical switch button along the tangent line BB of FIG. 1C including the upper housing at different stroke positions.

4A and 4B are respectively exploded schematic diagrams of the optical switch button of the second embodiment of the present invention at different viewing angles.

4C is a schematic cross-sectional view of the optical switch key of the second embodiment of the present invention.

5A to 5D are schematic cross-sectional views of the optical switch button of FIG. 4A at different stroke positions.

6A and 6B are respectively exploded schematic diagrams of the optical switch button in different viewing angles according to the third embodiment of the present invention.

FIG. 6C is a schematic top view of the optical switch button of FIG. 6A without showing the combination of the upper casing.

6D is a perspective schematic view of the optical switch button of FIG. 6A without showing a partial hollow out of the upper casing.

FIG. 7 is a schematic diagram of assembling the housing and the shielding member under an embodiment of the present invention.

8A and 8B are schematic partial top views of the optical switch button at the unpressed position and the pressed position, respectively.

9A and 9B are schematic partial top views of the optical switch button in the unpressed position and the pressed position of the fourth embodiment of the present invention, respectively.

Fig. 10 is an exploded schematic diagram of the optical switch button of the fifth embodiment of the present invention.

11A and 11B are schematic diagrams of the upper shell and the lower shell of the optical switch button of FIG. 10, respectively.

12A and 12B are the top view and three-dimensional schematic diagram of the optical switch button of FIG. 10 without showing the keycap Figure.

Fig. 13 is an exploded schematic diagram of the optical switch button of the sixth embodiment of the present invention.

14A and 14B are schematic diagrams of the upper housing of the optical switch button of FIG. 13 in different viewing angles.

15A and 15B are a top view and a three-dimensional schematic diagram of the optical switch button of FIG. 13 without the keycap.

16A and 16B are respectively exploded schematic diagrams of the optical switch button in different viewing angles according to the seventh embodiment of the present invention.

16C is a schematic top view of the optical switch button of FIG. 16A without showing the combination of the upper casing.

16D is a schematic cross-sectional view including the upper casing along the tangent line CC of FIG. 16C.

17A and FIG. 17B are schematic diagrams of the lower casing of an embodiment of the present invention from different viewing angles.

18A and 18B are cross-sectional schematic diagrams of the optical switch button along the tangent line DD of FIG. 16C including the upper housing at the unpressed position and the pressed position.

19A and 19B are respectively exploded diagrams of the optical switch button of the eighth embodiment of the present invention at different viewing angles.

19C is a schematic top view of the optical switch button of FIG. 19A without showing the combination of the upper casing.

Fig. 19D is a schematic cross-sectional view taken along the tangent line EE of Fig. 19C.

20A and 20B are schematic diagrams of the upper case from different viewing angles according to an embodiment of the present invention.

21A and 21B are cross-sectional schematic diagrams of the optical switch button along the tangent line FF of FIG. 19C including the upper casing at the unpressed position and the pressed position.

Fig. 22 is an exploded schematic diagram of the optical switch button of the ninth embodiment of the present invention.

FIG. 23 is a schematic diagram of the lower case of the optical switch button of FIG. 22.

24A and 24B are the top view and three-dimensional schematic diagram of the optical switch button of FIG. 22 without showing the keycap Figure.

Fig. 25 is an exploded schematic diagram of the optical switch button of the tenth embodiment of the present invention.

Fig. 26 is a schematic diagram of the upper housing of the optical switch button of Fig. 25;

27A and 27B are a top view and a three-dimensional schematic diagram of the optical switch button of FIG. 25 without the keycap.

The present invention provides an optical switch button, which can be applied to any push-type input device (such as a keyboard), or integrated in any suitable electronic device (such as a portable electronic device key or a notebook computer keyboard) to provide fast It has precise trigger function and is suitable for a variety of key structure designs. The structure and operation of the components of the optical switch button of the embodiment of the present invention will be described in detail later with reference to the drawings.

Figures 1A to 5D are schematic diagrams of the first embodiment of the present invention, in which Figure 1A and Figure 1B are respectively exploded schematic views of the optical switch button of the first embodiment of the present invention at different viewing angles, and Figure 1C is the optical switch button of Figure 1A The combined top view schematic diagram of the upper casing is not shown, and FIG. 1D is a schematic cross-sectional view including the upper casing along the tangent line AA of FIG. 1C. As shown in FIGS. 1A to 1D, the optical switch button 10 of the first embodiment of the present invention includes a housing 100, a movable shaft 130, an elastic member 140 and a switch module 150. The housing 100 has a deformable portion 111. The movable shaft 130 can be movably disposed on the housing 100, and in response to the pressing force, the movable shaft 130 can move up and down along the movement path between the unpressed position and the pressed position. The elastic member 140 is disposed in the housing 100, and the elastic member 140 is coupled to the movable shaft 130. When the pressing force is removed, the elastic member 140 restores the movable shaft 130 to the unpressed position. The switch module 150 includes a circuit board 151, an optical transmitter 152 and an optical receiver 153. The optical transmitter 152 and the optical receiver 153 are electrically connected to the circuit board 151, and the optical transmitter 152 emits optical signals, and the optical signals reach the optical connection along the optical transmission path. 收器153. When the movable shaft 130 is at the unpressed position, the deformable portion 111 has a first spatial relationship with the light transmission path, and the light signal received by the light receiver interface 153 has the first intensity. When the movable shaft 130 moves from the unpressed position to the pressed position in response to the pressing force, the movable shaft 130 moves along the movement path to compress the elastic member 140 and push the deformable part 111 to move, so that the deformable part 111 is not in line with the light transmission path. There is also a first spatial relationship, so that the optical signal received by the optical receiver 153 has a second intensity, and the second intensity is different from the first intensity, so that the switch module 150 is triggered to generate a trigger signal.

In addition, the optical switch button 10 may optionally include a backlight unit 160 for generating light to form a light-emitting button. For example, the backlight unit 160 includes a light guide rod 161 and a backlight light source 162, wherein the light guide rod 161 corresponds to the elastic member 140 and is disposed in the housing 100, and the backlight light source 162 corresponds to the light guide rod 161 and is electrically connected to the circuit board 151 to provide light.

The housing 100 is preferably formed by a combination of an upper housing 120 and a lower housing 110 to form an accommodating space inside for arranging other components of the optical switch button 10 (for example, the elastic member 140, the light guide post 161, etc.). In this embodiment, the upper housing 120 has a through hole 121 and an upper engaging portion 122. The movable shaft 130 can be movably inserted into the through hole 121 to position the elastic member 140. The lower housing 110 has a lower engaging portion 112 for engaging with the upper engaging portion 122, so that the upper housing 120 is connected to the lower housing 110 to form a housing 100 with an accommodating space therein for accommodating elastic elements 140, light guide 161 and so on. For example, the upper engaging portions 122 are preferably grooves formed on opposite sides of the upper housing portion 120, and the lower engaging portions 112 are hooks corresponding to the grooves, but not limited to this. According to practical applications, the upper engaging portion 122 may be a hook formed on the upper housing portion 120, and the lower engaging portion 112 may be a groove corresponding to the hook.

Furthermore, the housing 100 can be positioned on the lower board (for example, the circuit board 151 or the bottom plate (not shown)) by means such as clamping, locking, adhesion, bearing, etc. In this embodiment, the housing 100 is preferably disposed on the circuit board 151, but it is not limited to this. In other embodiments, the housing 100 is disposed at the bottom In the case of a board, the circuit board 151 can be selectively disposed above or below the bottom board according to actual applications. In one embodiment, the housing 100 is preferably positioned on the circuit board 151 by a positioning mechanism. For example, the lower housing 110 may have a positioning post 113, and the circuit board 151 has a socket 154 corresponding to the positioning post 113, so that the housing 100 can be fixed to the circuit by inserting the positioning post 113 of the lower housing 110 into the socket 154 Board 151, but not limited to this. In other embodiments, the positions of the positioning post and the socket can also be interchanged according to actual applications.

The through hole 121 of the upper housing 120 preferably has a shape corresponding to the top of the movable shaft 130, so that the movable shaft 130 can movably pass through the through hole 121 of the upper housing 120 from below the upper housing 120, and the movable shaft 130 The top part of the through hole 121 protrudes. The movable shaft 130 preferably has an acting portion 131, an actuating portion 132, a limiting portion 133 and an engaging portion 134. For example, the movable shaft 130 is preferably sleeve-shaped, the acting portion 131, the actuating portion 132 and the limiting portion 133 are preferably arranged along the periphery of the lower end of the movable shaft 130, and the engaging portion 134 is preferably arranged on the top of the movable shaft 130 .

Specifically, the acting portion 131 protrudes along the movement path (for example, a path parallel to the Z-axis direction) and corresponds to the deformable portion 111. For example, the acting portion 131 may be a convex post or a bump extending downward along the Z-axis direction to correspond to the deformable portion 111 of the housing 100. In one embodiment, the acting portion 131 preferably has a first inclined surface 1311. In this embodiment, the first inclined surface 1311 is preferably formed at the free end (ie, the lower end) of the acting portion 131 and is inclined inward along the movement path. For example, the first inclined surface 1311 preferably extends downward along the Z-axis direction and is inclined toward the inner side of the movable shaft 130. The actuating portion 132 is disposed corresponding to the extension arm 143 of the elastic member 140, and the actuating portion 132 is preferably in the form of a bump (for example, an angular block) to interfere with the extension arm 143 of the elastic member 140 to provide a pressing feel. The limiting portion 133 is preferably a cylindrical body protruding radially from both sides of the movable shaft 130, so that the distance between the two cylindrical bodies is greater than the diameter of the through hole 121 of the upper housing 120, thereby avoiding the movable shaft 130 relative to The lower housing 110 is separated from the upper housing 120 when moving in the through hole 121. The engaging portion 134 may be, for example, a cross-shaped engaging post formed on the top of the movable shaft 130 for Engage with the key cap (not shown), but not limited to this. In other embodiments, the engaging portion 134 may be in other forms (such as engaging holes, bumps) to engage or abut against the key cap.

In this embodiment, the elastic member 140 preferably includes a spring body 141, a positioning portion 142 and an extension arm 143, and the positioning portion 142 is connected to the spring body 141 and the extension arm 143. For example, the positioning portion 142 and the extension arm 143 are preferably formed by bending a rod extending from one end (such as the lower end) of the spring body 141, and the positioning portion 142 and the extension arm 143 are used as the optical switch button 10 Feel elastic, but not limited to this. In this embodiment, the positioning portion 142 preferably extends horizontally from one end of the spring body 141 and then is bent substantially upward in the Z-axis direction, and the extension arm 143 is bent and extended relative to the positioning portion 142. In this embodiment, the angle between the extension arm 143 and the positioning portion 142 is preferably not greater than 120 degrees. In another embodiment, the elastic member 140 may be implemented as a spring structure having only the spring body 141 without the positioning portion 142 and the extension arm 143, and the optical switch button 10 may additionally include a hand-feeling elastic member separated from the spring body 141 (eg A torsion spring) to provide a pressing feel with the actuating portion 132 corresponding to the movable shaft 130. In yet another embodiment, the elastic member 140 may only have the spring body 141, and the optical switch button 10 may not additionally provide a hand-feeling elastic member, so the movable shaft 130 may not include the corresponding actuating portion 132. In addition, although the elastic member 140 is implemented as a spring in this embodiment, it is not limited to this. In other embodiments, the elastic member 140 may be implemented as an elastic body and located between the lower housing 110 and the movable shaft 130 to provide a restoring force after pressing.

2A and 2B together, the structure details of the lower casing 110 and the arrangement relationship of various components in the lower casing 110 will be described in detail. Corresponding to the elastic member 140, the lower housing 110 further has a positioning portion 114 so that the spring body 141 can be positioned on the positioning portion 114. For example, the positioning portion 114 is an annular wall protruding from the bottom of the lower housing 110 toward the upper housing 120, so that one end of the spring body 141 can be sleeved on the annular wall, and the other end of the spring body 141 abuts against the movable shaft 130 The underside, and make the activity The top of the shaft 130 protrudes from the through hole 121 of the upper housing 120. Thereby, when a pressing force is applied to the key cap so that the movable shaft 130 moves from the unpressed position to the lower housing 110 to the pressed position, the movable shaft 130 compresses the spring body 141. When the pressing force is released, the spring body 141 can provide an elastic restoring force so that the movable shaft 130 moves away from the lower housing 110 to the unpressed position. Furthermore, the lower housing 110 preferably has a limited portion 115 to correspond to the positioning portion 142 of the elastic member 140. The positioning portion 142 is positioned on the lower housing 110 by the limiting portion 115, and the extension arm 143 extends corresponding to the actuation portion 132. The limiting portion 115 preferably corresponds to the upper section of the positioning portion 142 (that is, the upright portion adjacent to the extension arm 143 ), and is used to limit the displacement of the positioning portion 142. Specifically, when the spring body 141 is sleeved on the positioning portion 114 of the lower housing 110, the positioning portion 142 of the elastic member 140 preferably extends horizontally to the limiting portion 115, so that the upright upper section of the positioning portion 142 passes through the limiting portion. 115 is positioned, and the extension arm 143 extends below the actuating portion 132 relative to the positioning portion 142. For example, the limiting portion 115 may be a groove formed on the wall surface of the lower housing 110, or a wall surface that the connecting portion of the positioning portion 142 and the extension arm 143 can bear. In addition, the lower housing 110 may optionally further have an impact part 116. When the movable shaft 130 moves toward the lower housing 110 in response to the pressing force, the actuating portion 132 generates a relative displacement with the extension arm 143 as the movable shaft 130 moves downward, so that the user's fingers first feel a greater resistance and then extend the arm When the 143 is released from the depression of the actuating portion 132, the user's finger feels resistance is greatly reduced, which provides the user with a sense of step difference in pressing and tactility, and the extension arm 143 can generate a sound by rebounding and striking the striking portion 116. When the pressing force is released, the elastic body 141 provides a restoring force to make the movable shaft 130 move upward, driving the actuating portion 132 to move upward, and the extension arm 143 slides down relative to the actuating portion 132 to return to the original position.

In addition, the lower housing 110 preferably has a receiving portion 1141 to correspond to the backlight unit 160. For example, the accommodating portion 1141 may be a space surrounded by the annular wall of the positioning portion 114 for accommodating the light guide post 161. That is, the light guide post 161 is arranged inside the positioning portion 114, and the spring The body 141 is sleeved on the outside of the positioning portion 114. Furthermore, the lower housing 110 preferably forms an opening corresponding to the bottom of the accommodating portion 1141, and the light source 162 is correspondingly disposed under the light guide post 161 to emit light toward the light guide post 161. In this embodiment, the light source 161 is preferably a light emitting diode, but it is not limited thereto.

As shown in the figure, in this embodiment, the deformable portion 111 is disposed on the lower housing 110 to correspond to the acting portion 131 of the movable shaft 130. Specifically, the deformable portion 111 is an elastic arm provided on the lower housing 110, so that the deformable portion 111 can be displaced (or elastically deformed) in response to the movement of the acting portion 131, thereby changing the deformable portion 111 relative to the light emitting portion. The spatial relationship (or relative position) of the light transmission path between the 152 and the light receiving portion 153 is used to trigger the switch unit 150 to generate a trigger signal. In this embodiment, the deformable portion 111 is preferably integrally formed with the lower housing 110. For example, the bottom of the lower housing 110 has an opening 117, and the deformable portion 111 extends from a wall surface adjacent to the opening 117 toward the opposite side of the opening 117. In other words, the deformable portion 111 is preferably disposed in the opening 117, and one end of the deformable portion 111 is connected to the wall portion of the lower housing 110 that defines the opening 117, and the opposite end of the deformable portion 111 is a free end located in the opening 117 . The deformable portion 111 preferably extends horizontally in the opening 117 substantially parallel to the bottom of the lower housing 110 so that the deformable portion 111 has a horizontal extension axis L. In other words, the horizontal extension axis L is preferably the long axis from the connecting end to the free end of the deformable portion 111. In this embodiment, the deformable portion 111 is preferably an L-shaped elastic arm including a connecting portion 1112 and a shielding portion 1113, wherein the long axis of the L-shaped elastic arm is preferably parallel to the connecting portion 1112 at the bottom of the lower housing 110, and is L-shaped The short axis of the extension arm is a shielding portion 1113 protruding from the free end of the deformable portion 111 toward the bottom of the lower housing 110. In other words, one end of the connecting portion 1112 of the deformable portion 111 is connected to the lower housing 110, and the other end of the connecting portion 1112 is connected to the shielding portion 1113.

It should be noted here that although the shielding portion 1113 is shown to extend downward from the connecting portion 1112 in this embodiment, it is not limited thereto. In other embodiments, the shielding portion 1113 may extend upward from the connecting portion 1112 according to actual applications. Furthermore, in this embodiment, although the connecting portion 1112 is shown as a parallel lower shell The connecting arm extending straight from the bottom of 110, but not limited to this. In other embodiments, depending on actual applications, the connecting portion 1112 may be a rod-shaped portion or an arm-shaped portion having any suitable shape to serve as an arm for elastic deformation (or displacement) of the deformable portion 111. In addition, as shown in FIG. 2C, the light transmitter 152 and the light receiver 153 are preferably arranged on opposite sides of the shielding portion 1113 of the deformable portion 111, and are preferably located below the connecting portion 1112, so that the deformable portion 111 is deformed. During displacement, the optical transmitter 152 (or the optical receiver 153) will not hinder the lateral displacement of the connecting portion 1112 and the shielding portion 1113.

In this embodiment, the deformable portion 111 preferably has a second inclined surface 1111 to correspond to the first inclined surface 1311 of the acting portion 131, so that when the movable shaft 130 moves along the movement path, the first inclined surface 1311 moves relative to the second inclined surface 1111. In order to move the deformable portion 111 sideways. Specifically, the second inclined surface 1111 is preferably the inner surface of the shielding portion 1113 (that is, the side surface facing the direction of the movable axis 130), and extends downward along the Z-axis direction and is inclined outward, so that the second inclined surface 1111 corresponds to The first slope 1311.

Furthermore, the housing 100 preferably further has a grating portion 118. The grating portion 118 has a grating hole 1181 and is located between the light emitter 152 and the light receiver 153. Specifically, in this embodiment, the grating portion 118 is disposed on the lower housing 110, and the grating portion 118 is disposed corresponding to the light transmitter 152 or the light receiver 153 to define the stroke of the trigger signal generated by pressing the keycap. That is, the grating portion 118 may be a gate structure having a grating hole 1181, and is preferably disposed between the light transmitter 152 and the light receiver 153 and adjacent to the transmitting end of the light transmitter 152 or the receiving end of the light receiver 153. The grating part 118 can control the trigger position of pressing by controlling the size and corresponding position of the grating hole 1181, thereby reducing the trigger error. For example, the possible trigger error during pressing is about the thickness of the light emitter 152 or the light receiver 153, which can be reduced by correspondingly controlling the size of the grating hole 1181 to be smaller than the thickness of the light emitter 152 or the light receiver 153 Trigger error. In one embodiment, the grating portion 118 of the lower housing 110 is disposed at The proximity of the optical receiver 153 can make the optical signal less susceptible to external light interference at the receiving end, and more effectively reduce the possibility of false triggering, but not limited to this. According to practical applications, in accordance with the design of the circuit board 151, the positions of the optical transmitter 152 and the optical receiver 153 can be interchanged, so that the grating portion 118 is adjacent to the optical transmitter 152. Furthermore, corresponding to the grating portion 118, the deformable portion 111 is located on one side of the grating portion 118, so that when the deformable portion 111 deforms and displaces relative to the lower housing 110 in response to the movement of the acting portion 131, it selectively changes and The relative position of the grating hole 1181 further changes the intensity of the optical signal received by the optical receiver 153. For example, the width and length of the shielding portion 1113 of the deformable portion 111 are preferably greater than or equal to the width and length of the grating hole 1181, so that when the deformable portion 111 is displaced in response to the movement of the acting portion 131, the shielding portion 1113 can be selectively Block the grating hole 1181.

The light transmitter 152 and the light receiver 153 are disposed on the circuit board 151 and electrically connected to the circuit board 151. Specifically, the circuit board 151 preferably has a switch circuit, and the light transmitter 152 and the light receiver 153 are electrically connected to the switch circuit of the circuit board 151, so that the light transmitter 152 can emit light signals to the light receiver 153, and when When the intensity of the optical signal received by the optical receiver 153 changes, the trigger switch module 150 generates a trigger signal. For example, the light transmitter 152 can be any transmitter that can emit light signals with a suitable wavelength, and the light signals emitted by the light transmitter 152 can include electromagnetic waves, infrared rays or visible light. The optical receiver 153 is any suitable receiver that can receive the corresponding optical signal. The light transmitter 152 and the light receiver 153 are preferably arranged in a straight line, so that the light transmission path is a straight path. The circuit board 151 preferably has an escape space 155, and the escape space 155 communicates with the opening 117. When the movable shaft 130 is at the pressing position, the end of the acting portion 131 preferably enters the avoiding space 155 to increase the pressing stroke and increase the operating feel. For example, the avoiding space 155 can be a avoiding slot (or avoiding hole) opened on the circuit board 151, and the light emitter 152 and the light receiver 153 are disposed on opposite sides of the avoiding slot.

In addition, corresponding to the setting of the backlight light source 162, the circuit board 151 preferably has a driver The light source circuit of the backlight light source 162. The backlight light source 162 may be disposed on the circuit board 151 and electrically connected to the light source circuit of the circuit board 151 to provide light entering the light guide post 161 and then emitting from the keycap of the optical switch button 10. In one embodiment, the backlight light source 162 is preferably a light emitting diode, and the wavelength of the light emitted by the backlight light source 162 is preferably different from the wavelength of the light signal emitted by the light emitter 152 to reduce interference, but it is not limited thereto.

The operation of the optical switch button 10 of FIG. 1A will be described later with reference to FIGS. 3A to 3D. FIGS. 3A to 3D are cross-sectional schematic diagrams of the optical switch button 10 along the tangent line BB of FIG. 1C including the upper housing 120 at different stroke positions, for example 3A, 3B, 3C, and 3D are cross-sectional schematic diagrams of the optical switch button 10 in the unpressed position, the contact position of the acting part 131 and the deformable part 111, the trigger position and the lowest position, respectively. As shown in FIG. 3A, when the movable shaft 130 is in the unpressed position, the acting portion 131 preferably at least partially overlaps the deformable portion 111 in the direction of the parallel movement path. For example, when the movable shaft 130 is in the unpressed position, the acting portion 131 and the deformable portion 111 preferably at least partially overlap in the Z-axis direction, that is, the vertical projection of the acting portion 131 and the deformable portion 111 on the lower housing 110 is at least Partially overlapped. Furthermore, when the movable shaft 130 is at the unpressed position, the deformable portion 111 has a first spatial relationship with the light transmission path, and the light signal received by the light receiver 153 has a first intensity. In this embodiment, when the movable shaft 130 is in the unpressed position, the deformable portion 111 enters the light transmission path less, the deformable portion 111 blocks the light signal with a lower amount, and the optical receiver receives the second light signal received by the optical receiver 153. One is strong. For example, when the movable shaft 130 is at the unpressed position, the horizontal extension axis L of the deformable portion 111 preferably does not pass through the grating hole 1181, that is, the deformable portion 111 is preferably located at the light emitter 152, the grating hole 1181 and the light The side of the virtual connection (that is, the optical transmission path) of the receiver 153 makes the optical signal emitted by the optical transmitter 152 preferably not blocked by the deformable portion 111 and is received by the optical receiver 153, so that the intensity of the optical signal is relatively Stronger (such as unobstructed/attenuated optical signal intensity).

As shown in FIGS. 3B to 3D, when the movable shaft 130 moves from the unpressed position to the pressed position in response to the pressing force, the movable shaft 130 moves along the movement path to compress the elastic member 140 and push against the deformable portion 111 to move, so that The deformable portion 111 and the light transmission path no longer have the first spatial relationship, so that the light signal received by the light receiver 153 has the second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module 150 to generate a trigger Signal. In other words, when the movable shaft 130 moves along the movement path toward the bottom of the lower housing 110 to the pressing position, the acting portion 131 pushes the deformable portion 111 to move, so as to change the spatial relationship between the deformable portion 111 and the light transmission path, thereby changing the light receiving The intensity of the light signal received by the sensor 153 triggers the switch module 150 to generate a trigger signal. In this embodiment, the first spatial relationship represents that the deformable portion 111 is far away from the light transmission path, and the deformable portion 111 does not substantially change the intensity of the light signal received by the light receiver 153. When the deformable portion 111 and the light transmission path no longer have the first spatial relationship, it means that the deformable portion 111 enters the light transmission path, and the deformable portion 111 attenuates the intensity of the light signal received by the light receiver 153, so that the second intensity is less than In the first intensity, the trigger switch module 150 generates a trigger signal.

Specifically, as shown in FIG. 3B, when the keycap is pressed to drive the movable shaft 130 to move toward the bottom of the lower housing 110, the acting part 131 moves downward along the moving path with the movable shaft 130, so that the end of the acting part 131 (Ie, the lower end) abuts the deformable portion 111. For example, the acting portion 131 and the deformable portion 111 at least partially overlap in the direction of the parallel movement path (such as the Z axis direction), that is, the deformable portion 111 is partially located on the movement path of the acting portion 131, so the acting portion 131 moves downward At this time, the end of the acting portion 131 (for example, the first inclined surface 1311) abuts the top of the deformable portion 111 (for example, the second inclined surface 1111).

As shown in FIG. 3C, when the movable shaft 130 continues to move along the movement path toward the bottom of the lower housing 110 to the trigger position, the first inclined surface 1311 of the acting portion 131 is opposite to the second inclined surface 1311 of the deformable portion 111. The inclined surface 1111 moves to move the deformable part 111 laterally, thereby changing the spatial relationship between the deformable part 111 and the light transmission path, thereby changing the intensity of the light signal received by the light receiver 153 to trigger the switch module 150 to generate a trigger signal . For example, when the movable shaft 130 continues to move along the movement path toward the bottom of the lower housing 110 to the trigger position, the deformable portion 111 moves laterally away from the movement path, the deformable portion 111 enters the light transmission path more, and the deformable portion The amount of blocked light signal 111 is relatively high, and the light signal received by the light receiver 153 has a relatively small second intensity (that is, the second intensity is less than the first intensity), and the switch module 150 is triggered to generate a trigger signal. Specifically, when the acting portion 131 abuts the deformable portion 111 and moves downward, the acting portion 131 and the deformable portion 111 are at least partially contacted in the direction of the vertical movement path, that is, the first inclined surface 1311 is in contact with and is opposite to the second inclined surface 1111. Move downward and generate a lateral component force to push the deformable portion 111 and move laterally away from the acting portion 131, for example, toward the light transmission path. In one embodiment, when the deformable portion 111 moves laterally away from the movement path, the horizontal extension axis L preferably passes through the grating hole 1181, so that the deformable portion 111 substantially completely shields the light signal emitted by the light emitter 152 (that is, the light receiving The light signal is not received by the device 153, and the second intensity is zero). It should be noted here that by changing the circuit design of the circuit board 151, the switch module 150 can generate a trigger signal according to the change in the amount of light received by the optical receiver 153, or whether the optical receiver 153 receives an optical signal To generate a trigger signal.

Furthermore, as shown in FIG. 3D, when the movable shaft 130 is at the pressing position (for example, the lowest position), the end of the acting portion 131 exceeds the deformable portion 111 and enters the avoiding space 155. Specifically, when the movable shaft 130 continues to move down from the trigger position to the lowest position, the acting portion 131 protrudes from the bottom of the lower housing 110 through the opening 117 and enters the avoiding space 155 of the circuit board 151 to make the pressing stroke Increase and improve the operating feel. When the pressing force is released, the movable shaft 130 can return to the unpressed position as shown in FIG. 3A by the restoring force provided by the elastic member 140 (ie, the spring body 141), and The deformable part 111 is driven back to the original position.

4A to 5D are schematic diagrams of the second embodiment of the present invention, in which Fig. 4A and Fig. 4B are respectively exploded schematic diagrams of the optical switch button of the second embodiment of the present invention in different viewing angles, and Fig. 4C is the second embodiment of the present invention The cross-sectional schematic diagram of the optical switch button. As shown in FIGS. 4A to 4C, the optical switch button 10' of the second embodiment of the present invention includes a housing 100', a movable shaft 130, an elastic member 140, and a switch module 150, and the optical switch button 10' can be selectively changed The backlight unit 160 is included. The difference between the optical switch button 10' of FIG. 4A and the optical switch button 10 of FIG. 1A is that the lower housing 110' does not have the deformable portion 111, but the deformable portion 123 is provided on the upper housing 120'. Therefore, the structural details and connection relations of the remaining components of the optical switch button 10' (such as the movable shaft 130, the elastic member 140, the switch module 150, the backlight unit 160, etc.), and the corresponding structural details of the housing 100' and the housing 100 Please refer to the related description of the optical switch button 10 of the first embodiment, which will not be repeated here. In the following, the difference between this embodiment and the first embodiment will be emphatically explained.

In this embodiment, the housing 100' is formed by combining the upper housing 120' and the lower housing 110', and the deformable portion 123 is preferably an elastic arm extending downward from the lower surface of the upper housing 120', and The deformed portion 123 corresponds to the opening 117 of the lower housing 110'. Specifically, the deformable portion 123 is preferably an L-shaped elastic arm including a connecting portion 1232 and a shielding portion 1233, wherein one end of the connecting portion 1232 of the deformable portion 123 is connected to the upper housing 120', and the other end of the connecting portion 1232 Connect the shielding portion 1233. Specifically, the connecting portion 1232 preferably extends parallel to the movement path of the acting portion 131 and does not interfere with the movement path, and the shielding portion 1233 is the free end of the deformable portion 123, and is preferably parallel to the lower end from the end of the connecting portion 1232. The bottom surface of the housing 110' extends. The shielding portion 1233 preferably corresponds to the acting portion 131 and is located in the opening 117 (or above the opening 117) of the lower housing 110'. Furthermore, the width and length of the shielding portion 1233 are preferably greater than or equal to the width and length of the grating hole 1181, so that the deformable portion 123 responds to the movement of the acting portion 131. During displacement, the shielding portion 1233 can selectively shield the grating hole 1181. It should be noted here that although the deformable portion 123 is illustrated as an L-shaped elastic arm including the connecting portion 1232 and the shielding portion 1233 in this embodiment, it is not limited thereto. In other embodiments, according to practical applications, the deformable portion 123 can be an elastic arm having any suitable shape, so that the deformable portion 123 has a free end corresponding to the acting portion 131 and a connecting end connected to the upper housing 120', and is free The end can be displaced (or elastically deformed) relative to the connecting end by being pushed by the acting part 131.

Furthermore, the deformable portion 123 preferably has a second inclined surface 1231 to correspond to the first inclined surface 1311 of the acting portion 131. Specifically, the second inclined surface 1231 is preferably the inner surface of the shielding portion 1233 (that is, the side surface facing the direction of the movable axis 130), and extends downward along the Z-axis direction and is inclined outward, so that the second inclined surface 1231 corresponds to The first slope 1311.

The operation of the optical switch button 10' of FIG. 4A will be described later with reference to FIGS. 5A to 5D, wherein FIGS. 5A, 5B, 5C, and 5D show the optical switch button 10' in the unpressed position, the acting portion 131 and the deformable A schematic cross-sectional view of the contact position, the trigger position and the lowest position of the portion 123. As shown in FIG. 5A, when the movable shaft 130 is in the unpressed position, the acting portion 131 and the deformable portion 123 preferably at least partially overlap in the direction of the parallel movement path. For example, when the movable shaft 130 is located at the unpressed position, the acting portion 131 and the shielding portion 1233 of the deformable portion 123 preferably at least partially overlap in the Z-axis direction, that is, the acting portion 131 and the shielding portion 1233 are on the lower housing 110' The vertical projections of at least partially overlap. Furthermore, when the movable shaft 130 is at the unpressed position, the deformable portion 123 has a first spatial relationship with the light transmission path, and the light signal received by the light receiver 153 is the first intensity. In this embodiment, when the movable shaft 130 is in the unpressed position, the shielding portion 1233 of the deformable portion 123 enters the light transmission path less, and the deformable portion 123 blocks the light signal with a lower amount, and the light receiver 153 receives The first intensity of the light signal is stronger. For example, when the movable shaft 130 is located at the unpressed position, the level of the shielding portion 1233 is The extension axis (that is, the extension axis that is substantially parallel to the direction of the light transmission path) preferably does not pass through the grating hole 1181, that is, the deformable portion 123 is preferably located at the virtual connection of the light emitter 152, the grating hole 1181 and the light receiver 153 (ie Light transmission path), so that the optical signal emitted by the optical transmitter 152 is preferably received by the optical receiver 153 without being blocked by the deformable portion 123, so that the optical signal intensity is relatively strong (for example, unblocked/attenuated Light signal intensity).

As shown in FIGS. 5B to 5D, when the movable shaft 130 moves from the unpressed position to the pressed position in response to the pressing force, the movable shaft 130 moves along the motion path to compress the elastic member 140 and push against the deformable part 123 to move, so that The deformable portion 123 and the light transmission path no longer have the first spatial relationship, so that the light signal received by the light receiver 153 has the second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module 150 to generate a trigger Signal. In other words, when the movable shaft 130 moves along the movement path toward the bottom of the lower housing 110' to the pressing position, the acting portion 131 pushes the deformable portion 123 to move, so as to change the spatial relationship between the deformable portion 123 and the light transmission path, thereby changing the light The intensity of the light signal received by the receiver 153 triggers the switch module 150 to generate a trigger signal. In this embodiment, the first spatial relationship represents that the shielding portion 1233 of the deformable portion 123 is far away from the light transmission path, and the shielding portion 1233 of the deformable portion 123 does not substantially change the light signal intensity received by the light receiver 153. When the shielding portion 1233 of the deformable portion 123 and the light transmission path no longer have the first spatial relationship, it means that the shielding portion 1233 of the deformable portion 123 enters the light transmission path, and the deformable portion 123 attenuates the light received by the light receiver 153 The signal intensity is such that the second intensity is less than the first intensity, so that the switch module 150 is triggered to generate a trigger signal.

Specifically, as shown in FIG. 5B, when the keycap is pressed to drive the movable shaft 130 to move toward the bottom of the lower housing 110', the action portion 131 moves downward along the movement path with the movable shaft 130, so that the action portion 131 The end (ie, the lower end) abuts against the shielding portion 1233 of the deformable portion 123. For example, make The use portion 131 and the shielding portion 1233 of the deformable portion 123 at least partially overlap in the direction of the parallel movement path (for example, the Z-axis direction), that is, the shielding portion 1233 of the deformable portion 123 is partially located on the movement path of the acting portion 131, so the acting portion When the 131 moves downward, the end of the acting portion 131 (for example, the first inclined surface 1311) abuts the top end of the shielding portion 1233 of the deformable portion 123 (for example, the second inclined surface 1231).

As shown in FIG. 5C, when the movable shaft 130 continues to move along the movement path toward the bottom of the lower housing 110' to the trigger position, the first inclined surface 1311 of the acting portion 131 moves relative to the second inclined surface 1231 of the deformable portion 123, so that The deformable portion 123 moves laterally to change the spatial relationship between the deformable portion 123 and the light transmission path, thereby changing the intensity of the light signal received by the light receiver 153 to trigger the switch module 150 to generate a trigger signal. For example, when the movable shaft 130 continues to move along the movement path toward the bottom of the lower housing 110' to the trigger position, the shielding portion 1233 of the deformable portion 123 moves laterally away from the movement path, and the shielding portion 1233 of the deformable portion 123 enters the light There are many transmission paths, the deformable portion 123 blocks a high amount of light signals, and the light signal received by the light receiver 153 has a relatively small second intensity (that is, the second intensity is less than the first intensity) to trigger the switch module 150 generates a trigger signal. Specifically, when the acting portion 131 abuts the shielding portion 1233 of the deformable portion 123 and moves downward, the acting portion 131 and the shielding portion 1233 of the deformable portion 123 at least partially contact in the direction of the vertical movement path (for example, the Y-axis direction), For example, the first inclined surface 1311 contacts and moves downward relative to the second inclined surface 1231 and generates a lateral component force to push the deformable portion 123 to move laterally away from the acting portion 131, for example, toward the light transmission path. In one embodiment, when the deformable portion 123 moves laterally away from the movement path, the horizontal extension axis of the shielding portion 1233 preferably passes through the grating hole 1181, so that the deformable portion 123 substantially completely shields the light signal emitted by the light emitter 152 ( That is, the optical receiver 153 does not receive the optical signal, and the second intensity is zero).

Furthermore, as shown in FIG. 5D, when the movable shaft 130 is at the pressing position, the end of the acting portion 131 exceeds the deformable portion 123 and enters the escape space 155 of the circuit board 151. in particular, When the movable shaft 130 continues to move down to the lowest position from the trigger position, the acting portion 131 protrudes from the bottom of the lower housing 110' through the opening 117, and enters the escape space 155 of the circuit board 151, so that the pressing stroke increases and thus lifts Operating feel. When the pressing force is released, the movable shaft 130 can return to the unpressed position as shown in FIG. 5A by the restoring force provided by the elastic member 140 (ie, the spring body 141), and drive the deformable portion 123 back to the original position.

It should be noted here that in the foregoing embodiment, although the deformable portion (for example, 111 or 123) is pushed into the light transmission path by the acting portion 131 as an example, it is not limited thereto. In other embodiments, the design of the deformable portion 111 or 123 and the acting portion 131 can be changed, so that when the movable shaft 130 is in the unpressed position, the deformable portion 111 or 123 enters and blocks more light signals and moves When the shaft 130 is at the pressing position, the deformable portion 111 or 123 is pushed by the acting portion 131 and displaced laterally, so that the deformable portion 111 or 123 blocks less light signals, thereby increasing the intensity of the light signals received by the light receiver 153 Is stronger (that is, the second intensity is greater than the first intensity), and the trigger switch module 150 generates a trigger signal. Furthermore, in the foregoing embodiment, the deformable portion 111 or 123 is preferably formed integrally with the lower housing 110 or the upper housing 120', but it is not limited thereto. In other embodiments, the deformable portion 111 or 123 can be provided on the lower housing 110 or the upper housing 120' by suitable joining means (such as adhesion, clamping, locking, etc.).

6A to 8B are schematic diagrams of the third embodiment of the present invention, in which FIGS. 6A and 6B are respectively exploded schematic views of the optical switch button of the third embodiment of the present invention in different viewing angles, and FIG. 6C is the optical switch button of FIG. 6A. A schematic top view of the combination of the upper casing is shown, and FIG. 6D is a perspective schematic view of a partial hollow out of the upper casing of the optical switch button of FIG. 6A without showing. As shown in FIGS. 6A to 6D, the optical switch button 20 of the third embodiment of the present invention includes a housing 200, a movable shaft 130, an elastic member 140, a switch module 150, and a shielding member 170. The movable shaft 130 can be movably disposed on the housing 200, and in response to the pressing force, the movable shaft 130 can move up and down along the movement path between the unpressed position and the pressed position. Elastic 140 is disposed in the housing 200, and the elastic member 140 is coupled to the movable shaft 130. When the pressing force is removed, the elastic member 140 restores the movable shaft 130 to the unpressed position. The switch module 150 includes a circuit board 151, an optical transmitter 152 and an optical receiver 153. The optical transmitter 152 and the optical receiver 153 are electrically connected to the circuit board 151, and the optical transmitter 152 emits optical signals, and the optical signals reach the optical receiver 153 along the optical transmission path. The shielding member 170 is disposed in the housing 200. When the movable shaft 130 is in the unpressed position, the shielding member 170 has a first spatial relationship with the light transmission path, and the light signal received by the light receiver 153 is at the first intensity; When the shaft 130 moves from the unpressed position to the pressed position in response to the pressing force, the movable shaft 130 moves along the movement path to compress the elastic member 140 and drive the shielding member 170 to move, so that the shielding member 170 and the light transmission path no longer have the first space Therefore, the optical signal received by the optical receiver 153 has the second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module 150 to generate the trigger signal.

It should be noted here that similar to the foregoing embodiment, the optical switch button 20 may optionally further have a backlight unit 160 including a light guide 161 and a backlight light source 162, and the movable shaft 130 of the optical switch button 20, the elastic member 140, and the switch module 150 and the backlight unit 160 may have the same or similar structural details and connection relationship as the foregoing embodiments (for example, the optical switch buttons 10, 10'), and reference may be made to the relevant description of the foregoing embodiment, which will not be repeated here.

In this embodiment, the housing 200 is formed by combining the upper housing 120 and the lower housing 210, and the shielding member 170 is disposed in the lower housing 210. It should be noted here that the structural details of the upper housing 120 (such as the through hole 121 and the upper engaging portion 122) and some structural details of the lower housing 210 (such as the lower engaging portion 112, the positioning post 113, the positioning portion 114, the container For the setting portion 1141, the limiting portion 115, the opening 117, etc., please refer to the related description of the embodiment in FIG. 1A, which will not be repeated here. With reference to FIG. 7 at the same time, the details of the structure of the shielding member 170 and the connection relationship with the lower casing 210 will be emphatically described. As shown in Figures 6C-6D and Figure 7, the shield 170 It is preferably in the form of shrapnel, such as metal shrapnel or plastic shrapnel. In one embodiment, the shielding member 170 includes a positioning portion 171, a force receiving portion 172, and a shielding portion 173. The positioning portion 171 and the force receiving portion 172 are disposed at opposite ends of the shielding member 170, and the shielding portion 173 is connected to the force receiving portion 172. . The positioning portion 171 is used to connect the lower housing 210 so that the shield 170 is positioned on the lower housing 210. Specifically, the positioning portion 171 is located at the connecting end of the shield 170, and the force receiving portion 172 and the shielding portion 173 are located at the free end of the shield 170. The force receiving portion 172 corresponds to the acting portion 131 of the movable shaft 130 to move relative to the acting portion 131 in response to the up and down movement of the movable shaft 130, thereby changing the spatial relationship (or relative position) between the shielding portion 173 and the light transmission path. For example, in this embodiment, the shielding member 170 can be formed by bending a metal sheet similar to a T-shape, wherein the horizontal top of the T-shaped metal elastic sheet is bent into an L shape, and the opposite ends of the T-shaped metal elastic sheet are respectively the positioning portions 171 and The force receiving portion 172 is adjacent to two adjacent sides of the lower housing 210. That is, the positioning portion 171 and the force receiving portion 172 are connected in an arc shape or an L shape. The upright lower portion of the T-shaped metal elastic sheet serves as the shielding portion 173, and the shielding portion 173 is preferably connected under the force receiving portion 172.

Corresponding to the positioning portion 171 of the shielding member 170, the lower housing 210 has grooves 211a, 211b, and the shielding member 170 can be fixed to the lower housing 210 by inserting the positioning portion 171 into the grooves 211a, 211b. In turn, the force receiving portion 172 and the shielding portion 173 form free ends that can move or bend and deform relative to the positioning portion 171. Corresponding to the acting portion 131, the force receiving portion 172 preferably has an inclined surface 1721, so that the acting portion 131 can move along the inclined surface 1721 to drive the force receiving portion 172 and the shielding portion 173 to move. In this embodiment, the inclined surface 1721 is preferably provided on the top of the force receiving portion 172 and is inclined toward the acting portion 131 and extends downward. Furthermore, the shielding portion 173 is preferably at least partially bent and extended relative to the force receiving portion 172, so that at least part of the shielding portion 173 can selectively interfere with the light transmission path. For example, the shielding portion 173 is at least partially bent and extended in a direction approaching the acting portion 131, so that when the force receiving portion 172 is driven by the acting portion 131 to move relatively, the force receiving portion 172 drives the shielding portion 173 to enter or move away. From the light transmission path. In another embodiment, according to actual applications, the shielding portion 173 may be designed to be bent and extended at least partially in a direction away from the acting portion 131. In addition, in this embodiment, although the shielding member 170 is bent so that the positioning portion 171 and the force receiving portion 172 correspond to the adjacent two sides of the lower housing 210, it is not limited thereto. In other embodiments, the positioning portion 171 and the force receiving portion 172 of the shield 170 can be arranged in a straight line, that is, the positioning portion 171 and the force receiving portion 172 are connected in a straight line to correspond to the same side of the lower housing 210. For example, the shield 170 can be The above-mentioned horizontal top has no bent T-shaped shrapnel.

In addition, similar to the foregoing embodiment, the shielding portion 173 of the shielding member 170 preferably corresponds to the opening 117 of the lower housing 210, for example, is located in the opening 117. When the movable shaft 130 moves from the unpressed position to the pressed position in response to the pressing force, the action portion 131 of the movable shaft 130 drives the shielding portion 173 of the shield 170 to move in the opening 117 to change the position relative to the light transmission path.

The operation of the optical switch button 20 in FIG. 6A will be described later with reference to FIGS. 8A and 8B. FIGS. 8A and 8B are partial top views of the optical switch button 20 at the unpressed position and the pressed position, respectively. As shown in FIG. 8A, when the movable shaft 130 is in the unpressed position, the action portion 131 preferably at least partially overlaps the shielding member 170 in the direction of the parallel movement path, and the shielding member 170 has a first spatial relationship with the light transmission path. The optical signal received by the optical receiver 153 is the first intensity. For example, when the movable shaft 130 is in the unpressed position, the acting portion 131 and the force receiving portion 172 preferably at least partially overlap in the Z-axis direction, that is, the vertical projection of the acting portion 131 and the force receiving portion 172 on the lower housing 210 is at least Part of the overlap, or the force receiving portion 172 is partially located on the movement path of the acting portion 131. Furthermore, in this embodiment, when the movable shaft 130 is in the unpressed position, the shielding member 170 enters the light transmission path less, the shielding member 170 blocks the light signal with a lower amount, and the light signal received by the light receiver 153 One is strong. That is, when the movable shaft 130 is in the unpressed position, the shielding portion 173 of the shielding member 170 enters the light transmission path less, the shielding portion 173 blocks the light signal with a lower amount, and the light receiver interface 153 receives The first intensity of the light signal is stronger. In one embodiment, when the movable shaft 130 is in the unpressed position, the shielding portion 173 preferably does not substantially enter the light transmission path (or does not shield the aforementioned grating hole 1181), that is, the shielding portion 173 is preferably located at the light emitter 152 and One side of the light transmission path of the light receiver 153 enables the light signal emitted by the light transmitter 152 to be received by the light receiver 153 without being blocked by the shielding portion 173, so that the light signal intensity is relatively strong (for example, unblocked) /Attenuated light signal intensity).

As shown in FIG. 8B, when the movable shaft 130 moves from the unpressed position to the pressed position in response to the pressing force, the movable shaft 130 moves along the motion path to compress the elastic member 140 and drive the shielding member 170 to move, so that the shielding member 170 and the light transmit The path system no longer has the first spatial relationship, so that the optical signal received by the optical receiver 153 has a second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module 150 to generate a trigger signal. In this embodiment, the first spatial relationship represents that the force-receiving portion 172 of the shielding member 170 and the acting portion 131 are substantially non-functional (or non-contact), and the shielding portion 173 of the shielding member 170 does not substantially change the light received by the light receiver 153 The intensity of the received light signal. When the shielding portion 173 of the shielding member 170 and the light transmission path no longer have the first spatial relationship, it means that the force receiving portion 172 and the acting portion 131 are relatively displaced so that the shielding portion 173 enters the light transmission path, and the shielding portion 173 attenuates the light receiver 153. The intensity of the received optical signal is such that the second intensity is less than the first intensity to trigger the switch module 150 to generate a trigger signal.

Specifically, when the movable shaft 130 is at the pressing position, the shielding member 170 moves laterally away from the movement path, the shielding member 170 enters the light transmission path more, the shielding member 170 blocks a higher amount of light signals, and the light receiver 153 receives The light signal is a weaker second intensity (that is, the second intensity is less than the first intensity). In other words, when the movable shaft 130 moves along the movement path from the unpressed position toward the bottom of the lower housing 210 to the pressed position, the acting portion 131 pushes the force receiving portion 172 and moves laterally away from the movement path, driving the shielding portion under the force receiving portion 172 173 moves into the light transmission path more parts, making The shielding portion 173 blocks a relatively high amount of light signals, and the light signal received by the light receiver 153 has a relatively weak second intensity, and the switch module 150 is triggered to generate a trigger signal. In one embodiment, when the acting portion 131 moves downward to push the force receiving portion 172, the first inclined surface 1311 of the acting portion 131 contacts and moves downward relative to the inclined surface 1721 of the force receiving portion 172 and generates a lateral component of force, so that the force is received The portion 172 drives the shielding portion 173 to deform laterally relative to the positioning portion 171, so that the shielding portion 173 substantially completely shields the light signal emitted by the light transmitter 152 (for example, shields the aforementioned grating hole 1181), so that the light receiver 153 does not receive Light signal (ie, the second intensity is zero). Furthermore, similarly, when the movable shaft 130 is at the pressing position, the end of the acting portion 131 can pass through the opening 117 of the lower housing 210 and enter the escape space 155 of the circuit board 151, so that the pressing stroke increases and the operating feel is improved. When the pressing force is released, the movable shaft 130 can return to the unpressed position as shown in FIG. 8A by the restoring force provided by the elastic member 140 (such as the spring body 141), and drive the shielding member 170 back to the original position (or shape) ).

It should be noted here that in the third embodiment, although the shielding member 170 is pushed by the action portion 131 to cause the shielding portion 173 to enter and block the light signal as an example, it is not limited to this. In other embodiments, the design of the shielding member 170 and the acting portion 131 can be changed so that the shielding member 170 is driven by the acting portion 131 to keep the shielding portion 173 away from the light transmission path. 9A and 9B are schematic partial top views of the optical switch button in the unpressed position and the pressed position of the fourth embodiment of the present invention, respectively. As shown in FIG. 9A, when the movable shaft 130 is at the unpressed position, the shielding member 170 is located in the light transmission path, the shielding member 170 blocks the light signal, and the light signal received by the light receiver 153 has a weaker first intensity. Specifically, when the movable shaft 130 is at the unpressed position, the acting portion 131 abuts against the force receiving portion 172 of the shield 170, so that the force receiving portion 172 is elastically deformed in a direction away from the acting portion 131 relative to the positioning portion 171, thereby The shielding portion 173 under the driving force receiving portion 172 is located in the light transmission path, for example, substantially shielding the grating hole 1181, so that the light receiver 153 does not receive the light signal (that is, the first intensity is zero). As shown in Figure 9B It is shown that when the movable shaft 130 is at the pressing position, the shielding member 170 moves laterally away from the light transmission path, and the light signal received by the light receiver 153 has a stronger second intensity (that is, the second intensity is greater than the first intensity). The trigger switch module 150 generates a trigger signal. Specifically, when the movable shaft 130 moves from the unpressed position to the pressed position, the acting portion 131 moves relative to the force receiving portion 172 of the shield 170 and passes over the force receiving portion 172 (for example, moves below the force receiving portion 172), so that The force receiving portion 172 is no longer pushed by the acting portion 131 and rebounds relative to the positioning portion 171 in the direction approaching the acting portion 131, thereby driving the shielding portion 173 to move away from the light transmission path (that is, the portion where the shielding portion 173 enters the light transmission path). The grating hole 1181 is less or substantially not blocked, so that the light receiver 153 can receive the light signal transmitted by the light transmitter 152 along the light transmission path to trigger the switch module 150 to generate a trigger signal.

It should be noted here that in the embodiments of FIGS. 9A and 9B, the inclined surface of the force receiving portion 172 is preferably arranged below the force receiving portion 172, and extends from top to bottom and is inclined in a direction away from the acting portion 131. Thereby, when the pressing force is released, the movable shaft 130 can move the action portion 131 upward along the slope of the force receiving portion 172 by the restoring force provided by the elastic member 140, and return to the action portion 131 shown in FIG. 9A to resist the force. The portion 172 blocks the unpressed position of the light signal. Furthermore, in the embodiments of FIGS. 8A-8B and FIGS. 9A-9B, the optical switch button generates a trigger signal by changing the intensity of the optical signal received by the optical receiver 153 through the shielding member 170 disposed on the housing 200, so only The shading effect of the shading member 170 needs to be considered, and the material and color of the housing 200 may not be restricted by shading requirements.

10 to 12B are schematic diagrams of the fifth embodiment of the present invention, in which FIG. 10 is an exploded view of the optical switch button of the fifth embodiment of the present invention, and FIG. 11A and FIG. 11B are respectively the upper housing of the optical switch button of FIG. 10 And a schematic diagram of the lower housing, and FIGS. 12A and 12B are a top view and a three-dimensional schematic diagram of the optical switch button of FIG. 10 without showing the keycap. As shown in FIGS. 10 to 12B, the optical switch button 30 of the fifth embodiment of the present invention includes a key cap 310, a support mechanism 320, a return mechanism 330, and a switch module 340 And the bottom plate 350. The supporting mechanism 320 is disposed under the key cap 310 and supports the key cap 310 to move up/down, and the supporting mechanism 320 has a protrusion 323. The restoring mechanism 330 is disposed under the key cap 310 to provide a restoring force to restore the key cap 310 to the position before the key cap 310 is pressed. The recovery mechanism 330 includes a housing 331 and an elastic element 332. The elastic element 332 is disposed in the housing 331 and the housing 331 has a deformable portion 333. The switch module 340 includes a circuit board 341, an optical transmitter 342, and an optical receiver 343. The optical transmitter 342 and the optical receiver 343 are electrically connected to the circuit board 341, and the optical transmitter 342 corresponds to the optical receiver 343 to emit optical signals. When the keycap 310 is not pressed, the light signal received by the light receiver 343 is the first intensity; when the keycap 310 is pressed, the keycap 310 drives the supporting mechanism 320 to move, so that the elastic member 332 is compressed and the protrusion 321 is pushed against The deformable portion 333 moves to change the light signal received by the light receiver 343 to a second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module 340 to generate a trigger signal.

Specifically, the keycap 310 may be, for example, an injection-molded rectangular keycap, and the lower surface of the keycap 310 has a coupling member (not shown) for coupling with the supporting mechanism 320. The coupling member may be a coupling structure having a shaft hole or a sliding groove. Furthermore, according to actual applications, the keycap 310 may be a light-transmitting keycap with a light-transmitting portion, so as to be applied to a light-emitting keyboard. For example, the light-transmitting part may be in the form of characters to indicate commands input by keys.

The bottom plate 350 can be used as a structural strength support plate of the optical switch button 30 and has connectors 351 and 352 connected to the support mechanism 320. In one embodiment, the bottom plate 350 is preferably formed by stamping a metal plate. The connecting members 351 and 352 are preferably hook-type connecting members bent and protruding from the surface of the bottom plate 350 toward the keycap 310. It should be noted here that when the circuit board 341 has sufficient structural strength, the connecting members 351 and 352 can be selectively disposed on the circuit board 341, and the use of the bottom plate 350 is eliminated.

The supporting mechanism 320 preferably includes an inner bracket 321 and an outer bracket 322, and the inner bracket 321 It is pivotally connected to the inner side of the outer bracket 322 to form a scissor type supporting mechanism. The inner bracket 321 and the outer bracket 322 are preferably, for example, injection-molded rectangular frames, and the inner bracket 321 and the outer bracket 322 may be rotatably connected by, for example, a pivot and a shaft hole mechanism. For example, the opposite side of the middle section of the inner bracket 322 has a pivot protruding outward, and the inner side of the outer bracket 322 has a shaft hole corresponding to the pivot, so that the middle section of the inner bracket 321 and the middle section of the outer bracket 322 are coupled to each other. In addition, both ends of the inner bracket 321 and the outer bracket 322 are movably connected to the keycap 310 and the bottom plate 350 respectively. For example, the key cap end of the inner bracket 321 can be rotatably connected with the coupling member of the key cap 310, and the bottom plate end of the inner bracket 321 can be movably connected with the connector 351 of the bottom plate 350. Similarly, the key cap end of the outer bracket 322 can be movably connected to the coupling member of the key cap 310, and the bottom plate end of the outer bracket 322 can be movably connected to the connector 352 of the bottom plate 350. Thereby, the supporting mechanism 320 can support the keycap 310 to move up/down relative to the bottom plate 350 smoothly.

The protrusion 323 is disposed on the inner bracket 321 and extends from the inner bracket 321 toward the inner side of the inner bracket 321. For example, the protruding portion 321 is preferably disposed on the inner side of the key cap end of the inner bracket 321, and the protruding portion 323 preferably has a first inclined surface 3231. In this embodiment, the first inclined surface 3231 of the protrusion 323 is disposed at the end of the protrusion 323 (that is, away from the free end of the inner bracket 321), and preferably faces from the end of the protrusion 323 toward the connecting end of the inner bracket 321. Tilt downward to face the deformable part 333 of the housing 331.

The circuit board 341 is preferably disposed on the bottom plate 350, and the circuit board 341 has an opening 3411 to allow the connecting members 351 and 352 of the bottom plate 350 to pass through to connect to the supporting mechanism 320. The light transmitter 342 and the light receiver 342 are disposed on the circuit board 341 and electrically connected to the circuit board 341. Specifically, the circuit board 341 preferably has a switch circuit, and the optical transmitter 342 and the optical receiver 343 are electrically connected to the switch circuit of the circuit board 341, so that the optical transmitter 342 can emit optical signals toward the optical receiver 343, and when When the intensity of the optical signal received by the optical receiver 343 changes, the trigger switch module 340 generates a trigger signal. In other words, the operation of the switch module 340 to generate the trigger signal is similar to that of the switch module 150 in the foregoing embodiment. The circuit board 341 preferably has an escape space 3412 for accommodating part of the protrusion 333 (for example, the end of the protrusion 333). For example, the avoiding space 3412 may be an avoiding slot opened on the circuit board 341, and the light transmitter 342 and the light receiver 343 are disposed on opposite sides of the avoiding slot.

In addition, the light switch button 30 can optionally have a backlight light source 360. The circuit board 341 preferably has a light source circuit for driving the backlight light source 360. The backlight light source 360 can be disposed on the circuit board 341 and electrically connected to the light source circuit of the circuit board 341 to provide light emitted toward the light-transmitting part of the key cap 310. The backlight source 360 is preferably disposed on the opposite side of the light emitter 342 and the light receiver 343, and preferably both are located in the vertical projection area of the inner bracket 321 on the bottom plate 350. For example, the light emitter 342 and the light receiver 343 are preferably provided corresponding to the protrusion 323 at the key cap end adjacent to the inner bracket 321, and the backlight light source 360 is correspondingly provided at the bottom plate end adjacent to the inner bracket 321.

The recovery mechanism 330 is disposed between the keycap 310 and the bottom plate 350 (or the circuit board 341), and includes a housing 331 and an elastic member 332. In this embodiment, the elastic member 332 is preferably a spring to provide a mechanical pressing operation feel, but it is not limited to this. In other embodiments, the elastic member 332 may be an elastic body to provide a restoring force after pressing. The housing 331 is formed by combining the upper housing 334 and the lower housing 335 to enclose an accommodation space for the elastic member 332. The recovery mechanism 330 further includes a movable part 336, and the movable part 336 can be movably sleeved on the upper housing 334 relative to the upper housing 334 (or the lower housing 335 ). Specifically, the elastic member 332, the upper housing 334, the lower housing 335, and the movable portion 336 constitute the restoring mechanism 330, which is similar to the housing 100 (or 100', 200), the movable shaft 130 and the elastic member in the foregoing embodiment. 140's structural details and connection relationship. For example, the upper housing 334 has a through hole 3341 and an upper engaging portion 3342 (such as a card slot). The movable portion 336 is movably inserted into the through hole 3341 from bottom to top to position the elastic member 332 and serves as an actuating member when the key cap 310 is pressed. The lower housing 335 has a lower engaging portion 3351 (for example, a hook) is used for engaging with the upper engaging portion 3342 to connect the upper housing 334 to the lower housing 335.

In this embodiment, the upper housing 334 preferably has a rectangular cover structure with a notch 3343. The upper engagement portion 3342 is preferably arranged on both sides of the notch 3343, so that the left arm portion 3345 is formed between the upper left engagement portion 3342 and the notch 3343, and the right upper engagement portion 3342 and the notch 3343 are formed between Right arm 3346. When the recovery mechanism 330 is disposed on the circuit board 341, the light transmitter 342 and the light receiver 343 are preferably covered by the housing 331 to prevent dust and reduce external light interference. For example, the light transmitter 342 and the light receiver 343 are respectively located on opposite sides of the notch portion 3343 and are covered by the upper housing portion 334. In one embodiment, the lower housing 335 preferably has a substantially U-shaped horizontal cross-section. The left arm portion 3345 and the right arm portion 3346 of the upper shell 334 protrude from the two sides of the U-shaped horizontal section toward the center of the U-shaped horizontal section opposite to each other from the lower shell 335 (that is, the left arm portion 3345 and the right arm portion 3345 of the upper shell 334). The vertical projection of the arm portion 3346 is beyond the vertical projection range of the lower casing 335) to form a notch 3343 between the left arm portion 3345 and the right arm portion 3346. The light transmitter 342 and the light receiver 343 are preferably located below the left arm portion 3345 and the right arm portion 3346, respectively, so as to achieve a dust-proof effect, but not limited thereto. Furthermore, when the keycap 310 is pressed, the protrusion 323 preferably moves outside the elastic member accommodating space enclosed by the upper shell 334 and the lower shell 325 (ie, moves in the notch 3343).

The movable portion 336 is preferably sleeve-shaped, and the movable portion 336 has a limiting portion 3361 and an actuating portion 3362 on the opposite side of the sleeve, wherein the limiting portion 3361 is used to limit the displacement of the movable portion 336 relative to the upper casing 334 , And the actuating portion 3362 cooperates with the hand-feeling elastic member (such as the extension arm 143 or the torsion spring of the elastic member 140 in the foregoing embodiment) to provide tactile feedback. It should be noted here that the structural details of the limiting portion 3361 and the actuating portion 3362 and their relationship with the upper housing 334 and the elastic handle can refer to the limiting portion 133 and the actuating portion 132 of the movable shaft 130 in the foregoing embodiment. The related description of, I will not repeat it here.

The lower housing 335 further has a positioning portion 3352 for positioning the elastic member 332. Yu Yishi In an embodiment, the positioning portion 3352 protrudes from the bottom surface of the lower casing 335 corresponding to the movable portion 336 toward the upper casing 334. When the recovery mechanism 330 is assembled, the spring-type elastic member 332 is sleeved on the outside of the positioning portion 3352 of the lower casing 335 so that the elastic member 332 is positioned between the movable portion 336 and the lower casing 335. When the keycap 310 is pressed, the movable part 336 can move downward relative to the upper housing 334 to compress the elastic member 332. When the key cap 310 is released, the elastic member 332 provides elastic force, so that the movable portion 336 drives the key cap 310 to move upward relative to the upper housing portion 334 and is positioned at the position before pressing by the limiting portion 3361.

In this embodiment, the recovery mechanism 330 can be supported and positioned on the circuit board 341 by the lower housing 335. Specifically, the lower housing 335 may include bearing portions 3353 and 3354, which are preferably disposed on opposite sides of the lower housing 335, so that the bearing portions 3353 bear on the circuit board 341 and are adjacent to the light emitter 342 and the light. The receiver 343 is located, and the supporting portion 3354 is supported by the circuit board 341 adjacent to the backlight source 360. In one embodiment, the supporting portion 3353 may be a pair of supporting arm portions extending opposite to each other from the lower housing 335, and the corresponding light emitter 342 and the light receiver 343 are respectively located on the left arm portion 3345 and the right portion of the upper housing 334. Below the arm 3346. The supporting portion 3354 may be a pair of supporting concave blocks extending and protruding from the lower housing 335 toward each other, so that the upper housing portion 334 is formed with a recess 3344 corresponding to the supporting portion 3354, and the position of the backlight light source 360 preferably corresponds to the recess.口3344. In this way, the light emitted by the backlight light source 360 is blocked by the recovery mechanism 330 to avoid affecting the intensity of the light signal received by the light receiver 343, thereby preventing the switch module 340 from incorrectly generating a trigger signal.

In this embodiment, the recovery mechanism 330 further includes a handle elastic member 370 for providing tactile feedback when pressed. For example, the handle elastic member 370 can be implemented as a torsion spring, and one end of the torsion spring is used as a positioning portion (such as 371 shown in FIG. 13), and the other end of the torsion spring is used as an extension arm 372. The lower casing 335 correspondingly has a positioning hole. When the tactile feedback element 370 is disposed on the lower casing 335, the positioning portion is coupled to the positioning hole, and the extension arm 372 corresponds to the actuating portion 3362 of the movable portion 336. When pressing the keycap 310 When the keycap 310 moves downward, the actuating portion 3362 is relatively displaced with the extension arm 372 of the torsion spring, so that the user’s fingers first feel a greater resistance, and then the extension arm 372 is released from the depression of the actuation portion 3362. The user's finger feels resistance is greatly reduced, thus providing the user with a sense of step difference in pressing and touch, and the extension arm 372 can knock the upper housing part 334 or the lower housing part 335 to produce a sound. When the key cap 310 is released, the elastic member 332 provides a restoring force to make the key cap 310 move upward, driving the actuating portion 3362 to move upward, and the extension arm 372 slides down relative to the actuating portion 3362 to return to the original position.

It should be noted here that similar to the foregoing embodiment, the housing 331 may have a grating portion 337, and the grating portion 337 is preferably disposed on the upper housing 334. For example, the grating portion 337 may be disposed on the left arm portion 3345 or the right arm portion 3346 of the upper housing 334 and adjacent to the light emitter 342, but not limited to this. According to practical applications, the grating portion 337 may be adjacent to the optical receiver 343, thereby making the optical signal less susceptible to interference from external light at the receiving end, and effectively reducing the possibility of false triggering.

As shown in FIG. 11B, in this embodiment, the deformable portion 333 of the housing 331 is disposed on the lower housing 335 to correspond to the protrusion 323 of the supporting mechanism 320. Specifically, the deformable portion 333 is an elastic arm disposed on the lower housing 335 and extending toward the key cap 310 (for example, upward), so that the deformable portion 333 can be displaced (or elastically deformed) in response to the movement of the protrusion 323 In turn, the spatial relationship (or relative position) of the deformable portion 333 with respect to the light transmission path between the light emitting portion 342 and the light receiving portion 343 is changed to trigger the switch unit 340 to generate a trigger signal. In this embodiment, the deformable portion 333 is preferably integrally formed with the lower housing 335, but it is not limited thereto. In other embodiments, the deformable portion 333 may be connected to the lower housing 335 by any suitable joining mechanism. In this embodiment, the deformable portion 333 may extend from the wall surface of the bottom end of the U-shaped horizontal section of the lower casing 335 toward the open end of the U-shaped horizontal section. In other words, one end of the deformable portion 333 is preferably connected to the lower housing 335, and the opposite end of the deformable portion 333 is a free end located in the notch 3343 of the upper housing 334. In this embodiment, the deformable portion 333 is preferably It is an elastic arm including a connecting portion 3332 and a shielding portion 3333. The connecting portion 3332 is preferably a connecting arm extending horizontally parallel to the bottom surface of the lower housing 335 to connect the lower housing 335 and the shielding portion 3333. The shielding portion 3333 extends from the connecting portion 3332 toward the keycap 310 (that is, extends upward along the Z axis direction) so as to be located in the notch portion 3343 of the upper housing 334 and corresponds to the protruding portion 323 of the supporting mechanism 320.

Furthermore, the deformable portion 333 preferably has a second inclined surface 3331 to correspond to the first inclined surface 3231 of the protrusion 323. When the keycap 310 drives the supporting mechanism 320 to move, the first inclined surface 3231 moves relative to the second inclined surface 333, so that the deformable portion 333 moves laterally. Specifically, the second inclined surface 3331 is preferably the outer surface of the shielding portion 3333 (that is, the side surface facing the direction of the protruding portion 323), and extends downward along the Z-axis direction and is inclined outward, so that the second inclined surface 3331 corresponds to The first slope 3231.

The operation of the optical switch button 30 of the fifth embodiment of the present invention will be described later with reference to FIGS. 12A and 12B. As shown in FIGS. 12A and 12B, when the keycap 310 is not pressed, the protrusion 323 and the deformable portion 333 at least partially overlap in the direction of movement of the parallel keycap 310 (for example, the Z-axis direction), and the deformable portion 333 and the light transmission The path has a first spatial relationship, and the optical signal received by the optical receiver 343 has the first intensity. When the keycap 310 is pressed, the keycap 310 drives the supporting mechanism 320 to move, so that the elastic member 332 is compressed and the protrusion 323 pushes against the deformable part 333 to move, so that the deformable part 333 and the light transmission path no longer have the first space Therefore, the optical signal received by the optical receiver 343 has the second intensity, and the second intensity is different from the first intensity, so that the switch module 340 is triggered to generate the trigger signal.

In this embodiment, the first spatial relationship represents that the deformable portion 333 is far away from the light transmission path, and the deformable portion 333 does not substantially change the intensity of the light signal received by the light receiver 343. When the deformable portion 333 and the light transmission path no longer have the first spatial relationship, it means that the deformable portion 333 enters the light transmission path, and the deformable portion 333 attenuates the intensity of the optical signal received by the light receiver 343, so that the second intensity is less than In the first intensity, the trigger switch module 340 generates a trigger signal.

Specifically, when the keycap 310 is pressed to drive the support mechanism 320 to move, the protrusion 323 moves against the deformable portion 333 to at least partially block the light signal, so that the second intensity is less than the first intensity. In one embodiment, when the keycap 310 is pressed, the protrusion 323 pushes against the deformable part 333 to move laterally, and the protrusion 323 and the deformable part 333 at least partially contact in the direction perpendicular to the movement of the keycap 310, for example, the protrusion 323 It is at least partially in contact with the deformable portion 333 in the Y-axis direction. Specifically, when the keycap 310 drives the support mechanism 320 to move, the first inclined surface 3231 of the protrusion 323 moves relative to the second inclined surface 3331 of the deformable portion 333 and generates a lateral force component, so that the deformable portion 333 is laterally Move into the light transmission path. For example, the first inclined surface 3231 of the protruding portion 323 moves relative to the second inclined surface 3331 of the deformable portion 333 and generates a lateral force component, so that the deformable portion 333 approaches the bottom end of the U-shaped horizontal section of the lower casing 335 Direction (that is, away from the connecting end of the protrusion 323 and the inner bracket 321, the direction of movement is as indicated by arrow A) to change the relative position of the deformable portion 333 and the grating portion 337 (for example, at least partially shielding the grating portion 337 Grating hole), so that the second intensity is less than the first intensity, so that the switch module 340 generates a trigger signal.

In one embodiment, when the keycap 310 is pressed to drive the protrusion 323 to move, the deformable portion 333 can preferably completely block the light signal, so that the light receiver 343 cannot receive the light signal (that is, the second intensity is zero). It should be noted here that by changing the circuit design of the circuit board 341, the switch module 340 can generate a trigger signal according to the change in the amount of light received by the optical receiver 343, or whether the optical receiver 343 receives an optical signal To generate a trigger signal.

13 to 15B are schematic diagrams of the sixth embodiment of the present invention, in which FIG. 10 is an exploded view of the optical switch button of the sixth embodiment of the present invention, and FIGS. 14A and 14B are respectively the upper housing of the optical switch button of FIG. 13 The schematic diagrams at different viewing angles, and FIGS. 15A and 15B are the top view and the three-dimensional schematic diagram of the optical switch button of FIG. 13 without showing the keycap. As shown in Figure 13 to Figure 15B, the sixth embodiment of the present invention The optical switch button 30' of the embodiment includes a keycap 310, a supporting mechanism 320, a return mechanism 330', a switch module 340, and a bottom plate 350, and the optical switch button 30' may optionally further include a backlight light source 360. The difference between the optical switch button 30' of FIG. 13 and the optical switch button 30 of FIG. 10 is that the lower housing 335' does not have the deformable portion 333, but the deformable portion 338 is provided on the upper housing 334'. Therefore, the structural details and connection relationship of the remaining components of the optical switch button 30' (for example, the keycap 310, the supporting mechanism 320, the switch module 340, the bottom plate 350, the backlight source 360, etc.), and the corresponding housing 331' and the housing 331 For the details of the structure, please refer to the related description of the optical switch button 30 of the fifth embodiment, which will not be repeated here.

In this embodiment, the casing 331' is formed by combining the upper casing 334' and the lower casing 335', and the deformable portion 338 is preferably an elastic arm extending from the upper casing 334'. Specifically, the deformable portion 338 is preferably an L-shaped elastic arm including a connecting portion 3382 and a shielding portion 3383, and is preferably provided corresponding to the opening of the notch portion 3343, wherein one end of the connecting portion 3382 is connected to the upper housing 334', and The other end of the connecting portion 3382 is connected to the shielding portion 3383. The connecting portion 3382 of the deformable portion 338 is preferably a rod-shaped portion or an arm-shaped portion having any suitable shape, wherein one end of the connecting portion 3382 is preferably connected to one of the right arm portion 3346 or the left arm portion 3345, and the connecting portion The other end of the 3382 extends in the direction of the other arm to connect to the shielding portion 3383 to form a free end of the deformable portion 338. For example, one end of the connecting portion 3382 of the deformable portion 338 is connected to the right arm portion 3346, and the other end of the connecting portion 3382 extends toward the left arm portion 3345 and partially corresponds to the opening of the notch 3343. The shielding portion 3383 preferably extends downward from the connecting portion 3382 in the Z-axis direction and corresponds to the protrusion 323. It should be noted here that although the shielding portion 3383 is shown to extend downward from the connecting portion 3332 in this embodiment, it is not limited thereto. In other embodiments, the shielding portion 3383 may extend upward from the connecting portion 3382 according to actual applications. Furthermore, according to practical applications, the deformable portion 338 can be an elastic arm having any suitable shape, so that the deformable portion 338 has a free end corresponding to the protruding portion 323 and a connecting end connected to the upper housing 334', and the free end can be Suffering The out portion 323 pushes against the displacement (or elastically deforms) relative to the connecting end.

Similarly, the deformable portion 338 preferably has a second inclined surface 3381 to correspond to the first inclined surface 3231 of the protrusion 323. Specifically, the second inclined surface 3381 is preferably the outer surface of the shielding portion 3383 (that is, the side surface facing the direction of the protrusion 323), and is adjacent to the top of the shielding portion 3383 and extends downward and inclined outward in the Z-axis direction. The second inclined surface 3381 corresponds to the first inclined surface 3231.

The operation of the optical switch button 30' of the sixth embodiment of the present invention will be described later with reference to FIGS. 15A and 15B. As shown in FIGS. 15A and 15B, when the keycap 310 is not pressed, the protrusion 323 and the deformable portion 338 at least partially overlap in the moving direction of the parallel keycap 310 (for example, the Z-axis direction), and the deformable portion 338 and the light transmission The path has a first spatial relationship, and the optical signal received by the optical receiver 343 has the first intensity. When the keycap 310 is pressed, the keycap 310 drives the support mechanism 320 to move, so that the elastic member 332 is compressed and the protrusion 323 pushes against the deformable part 338 to move, so that the deformable part 338 and the light transmission path no longer have a first space Therefore, the optical signal received by the optical receiver 343 has the second intensity, and the second intensity is different from the first intensity, so that the switch module 340 is triggered to generate the trigger signal. Similarly, in this embodiment, the first spatial relationship represents that the deformable portion 338 is far away from the light transmission path, and the deformable portion 338 does not substantially change the intensity of the light signal received by the light receiver 343. When the deformable portion 338 and the light transmission path no longer have the first spatial relationship, it means that the deformable portion 338 enters the light transmission path, and the deformable portion 338 attenuates the intensity of the light signal received by the light receiver 343, so that the second intensity is less than In the first intensity, the trigger switch module 340 generates a trigger signal.

Specifically, when the keycap 310 is pressed to drive the supporting mechanism 320 to move, the protrusion 323 pushes against the deformable portion 338 to move to at least partially block the light signal, so that the second intensity is less than the first intensity. In one embodiment, when the keycap 310 is pressed, the protrusion 323 pushes against the deformable part 338 to move laterally, and the protrusion 323 and the deformable part 338 at least partially contact in the direction perpendicular to the movement of the keycap 310. For example, the protrusion 323 and the deformable portion 338 are at least partially in contact in the Y-axis direction. Specifically, when the keycap 310 drives the support mechanism 320 to move, the first inclined surface 3231 of the protrusion 323 moves relative to the second inclined surface 3381 of the deformable portion 338 and generates a lateral force component, so that the deformable portion 338 is laterally Move into the light transmission path. For example, the first inclined surface 3231 of the protruding portion 323 moves relative to the second inclined surface 3381 of the deformable portion 338 and generates a lateral force component, so that the deformable portion 338 approaches the bottom end of the notch 3343 of the upper casing 334' The direction (that is, away from the connecting end of the protrusion 323 and the inner bracket 321, the direction of movement is shown by arrow A) laterally moves, at least partially shields the light signal, so that the second intensity is less than the first intensity, so that the switch module 340 generates Trigger signal.

In one embodiment, when the keycap 310 is pressed to drive the protrusion 323 to move, the deformable portion 338 can preferably completely block the light signal, so that the light receiver 343 cannot receive the light signal (that is, the second intensity is zero). It should be noted here that by changing the circuit design of the circuit board 341, the switch module 340 can generate a trigger signal according to the change in the amount of light received by the optical receiver 343, or whether the optical receiver 343 receives an optical signal To generate a trigger signal.

It should be noted here that in the first to sixth embodiments, the optical switch button drives the deformable portion (such as 111, 123, 333 or 338) or the shielding member 170 disposed on the housing moves substantially laterally (or horizontally) relative to the pressing direction to change the intensity of the light signal received by the light receiver (such as 153 or 343), and then trigger the switch module (such as 150 Or 340) Generate a trigger signal, thereby reducing the space requirement of the optical switch button in the Z-axis direction, and effectively reducing the button height, but not limited to this. In other embodiments, the optical switch button can be driven by the action portion 131 of the movable shaft 130 or the protrusion 323 of the support mechanism 320 to drive the deformable portion of the housing to move substantially parallel to the pressing direction (or move vertically), so that the switch module (for example, 150 or 340) is triggered.

16A to 18B are schematic diagrams of the seventh embodiment of the present invention, in which FIGS. 16A and 16B are respectively exploded diagrams of the optical switch button of the seventh embodiment of the present invention at different viewing angles, and FIG. 16C is the optical switch button of FIG. 16A The assembly diagram of the upper casing is not shown, and FIG. 16D is a schematic cross-sectional view including the upper casing along the tangent line CC of FIG. 16C. As shown in FIGS. 16A to 16D, the optical switch button 11 of the seventh embodiment of the present invention includes a housing 400, a movable shaft 130, an elastic member 140, and a switch module 150, and the optical switch button 11 may optionally further include a backlight unit 160. The difference between the optical switch button 11 in FIG. 16A and the optical switch button 10 in FIG. 1A lies in the form of the deformable portion 411 of the lower housing 410. Therefore, the structural details and connection relationship of the remaining components of the optical switch button 11 (such as the movable shaft 130, the elastic member 140, the switch module 150, the backlight unit 160, etc.), and the corresponding structural details of the housing 400 and the housing 100, can be Refer to the related description of the optical switch button 10 of the first embodiment, which will not be repeated here.

In this embodiment, the housing 400 is formed by combining the upper housing 120 and the lower housing 410, and the deformable portion 411 is preferably an elastic arm extending from the lower housing 410 in the opening 117. As shown in FIGS. 17A and 17B, the deformable portion 411 is preferably an elastic arm including a connecting portion 4111 and a shielding portion 4112, wherein the connecting portion 4111 is preferably a connecting arm extending horizontally parallel to the bottom surface of the lower casing 410 to connect The lower housing 410 and the shielding portion 4112. The shielding portion 4112 is located at the free end of the deformable portion 411 and corresponds to the action portion 131 of the movable shaft 130. The shielding portion 4112 can be pushed by the acting portion 131 so that the deformable portion 411 is bent and displaced downward. When the shielding portion 4112 is pushed by the acting portion 131, the shielding portion 4112 drives the connecting portion 4111 to elastically deform relative to the lower housing 410. In one embodiment, the shielding portion 4112 of the deformable portion 411 preferably has a size that can substantially completely shield the light signal, but it is not limited thereto. In other embodiments, the shielding portion 4112 of the deformable portion 411 at least partially shields the light signal.

The optical switch button of the seventh embodiment of the present invention will be described later with reference to FIGS. 18A and 18B. The operation of the key 11, in which FIGS. 18A and 18B are cross-sectional schematic diagrams of the optical switch key 11 along the tangent line DD of FIG. 16C including the upper casing at the unpressed position and the pressed position, respectively. As shown in FIG. 18A, when the movable shaft 130 is in the unpressed position, the acting portion 131 preferably at least partially overlaps the deformable portion 411 in the direction of the parallel movement path. For example, when the movable shaft 130 is in the unpressed position, the acting portion 131 and the deformable portion 411 preferably at least partially overlap in the Z-axis direction, that is, the vertical projection of the acting portion 131 and the deformable portion 411 on the lower housing 410 is at least Partially overlapped. Furthermore, when the movable shaft 130 is at the unpressed position, the deformable portion 411 has a first spatial relationship with the light transmission path, and the light signal received by the light receiver 153 is the first intensity. In this embodiment, when the movable shaft 130 is in the unpressed position, the deformable portion 411 enters the light transmission path less, the deformable portion 411 blocks the light signal with a lower amount, and the light receiver receives the light signal 153 One is strong. For example, when the movable shaft 130 is in the unpressed position, the deformable portion 411 is preferably located above the light transmission path, so that the light signal emitted by the light transmitter 152 is preferably received by the light without being blocked by the deformable portion 411 Receiver 153 makes the optical signal intensity relatively strong (for example, unobstructed/attenuated optical signal intensity).

As shown in FIG. 18B, when the movable shaft 130 moves from the unpressed position to the pressed position in response to the pressing force, the movable shaft 130 moves along the movement path to compress the elastic member 140 and push against the deformable portion 411 to move, so that the deformable portion 411 is moved. It no longer has the first spatial relationship with the optical transmission path, so that the optical signal received by the optical receiver 153 has a second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module 150 to generate a trigger signal. In other words, when the movable shaft 130 moves along the movement path toward the bottom of the lower housing 410 to the pressing position, the acting portion 131 pushes the deformable portion 411 and moves downward, so as to change the spatial relationship between the deformable portion 411 and the light transmission path, thereby changing The intensity of the light signal received by the light receiver 153 triggers the switch module 150 to generate a trigger signal. In this embodiment, the first spatial relationship represents that the deformable portion 411 is far away from the light transmission path, and the deformable portion 411 does not substantially change the light receiving The intensity of the optical signal received by the detector 153. When the deformable portion 411 and the light transmission path no longer have the first spatial relationship, it means that the deformable portion 411 enters the light transmission path, and the deformable portion 411 attenuates the intensity of the light signal received by the light receiver 153 so that the second intensity is less than In the first intensity, the trigger switch module 150 generates a trigger signal.

Specifically, when the keycap is pressed to drive the movable shaft 130 to move toward the bottom of the lower housing 410, the acting portion 131 moves downward along the movement path along with the movable shaft 130, so that the end (ie, the lower end) of the acting portion 131 abuts The shielding portion 4112 of the deformable portion 411 is pressed downward against the shielding portion 4112, so that the deformable portion 411 elastically deforms downward with the connecting end of the connecting portion 4111 as a fulcrum, and the shielding portion 4112 at least partially blocks the light signal (for example, at least partially The grating hole 1181) is blocked, so that the second intensity is smaller than the first intensity, so that the switch module 150 generates a trigger signal.

19A to 21B are schematic diagrams of the eighth embodiment of the present invention, in which FIGS. 19A and 19B are respectively exploded diagrams of the optical switch button of the eighth embodiment of the present invention at different viewing angles, and FIG. 19C is the optical switch button of FIG. 19A The combined top view schematic diagram of the upper casing is not shown, and FIG. 19D is a schematic cross-sectional view including the upper casing along the tangent line EE of FIG. 19C. As shown in FIGS. 19A to 19D, the optical switch button 11' of the seventh embodiment of the present invention includes a housing 400', a movable shaft 130, an elastic member 140, and a switch module 150, and the optical switch button 11' can be selectively changed The backlight unit 160 is included. The difference between the optical switch button 11' of FIG. 19A and the optical switch button 10' of FIG. 4A lies in the form of the deformable portion 421 of the upper housing 420. Therefore, the structural details and connection relations of the remaining components of the optical switch button 11' (such as the movable shaft 130, the elastic member 140, the switch module 150, the backlight unit 160, etc.), and the corresponding structures of the housing 400' and the housing 100' For details, please refer to the related descriptions of the optical switch buttons 10 and 10' of the first or second embodiment, which will not be repeated here.

In this embodiment, the housing 400' is formed by combining the upper housing 420 and the lower housing 410' Therefore, the deformable portion 421 is preferably an elastic arm extending from the upper housing 420. As shown in FIGS. 20A and 20B, the deformable portion 421 is preferably an elastic arm including a connecting portion 4211 and a shielding portion 4212. For example, the connecting portion 4211 is preferably an L-shaped connecting arm, wherein the connecting portion 4211 extends vertically downward from the lower surface of the upper housing 420 toward the lower housing 410', and then extends horizontally to connect the shielding portion 4212 and correspond to The acting part 131 of the movable shaft 130. In other words, the length of the connecting portion 4211 extending downward from the upper housing 420 is preferably such that the connecting portion 4211 extends horizontally below the acting portion 131. The shielding portion 4212 is located at the free end of the deformable portion 421, and the size of the shielding portion 4212 is preferably larger than the size of the connecting portion 4211, so that the connecting portion 4211 has a larger elastic deformation force relative to the shielding portion 4212. When the horizontal section of the connecting portion 4211 is pushed by the acting portion 131, the shielding portion 4212 is driven to elastically deform downward relative to the lower housing 410'. In one embodiment, the shielding portion 4212 of the deformable portion 421 preferably has a size that can substantially completely shield the light signal, but it is not limited thereto. In other embodiments, the shielding portion 4212 of the deformable portion 421 at least partially shields the light signal.

The operation of the optical switch button 11' of the eighth embodiment of the present invention will be described later with reference to FIGS. 21A and 21B. FIGS. 21A and 21B show the optical switch button 11' in the unpressed position and the pressed position along the tangent line FF of FIG. 19C. Schematic cross section. As shown in FIG. 21A, when the movable shaft 130 is in the unpressed position, the acting portion 131 and the deformable portion 421 preferably at least partially overlap in the direction of the parallel movement path. For example, when the movable shaft 130 is in the unpressed position, the acting portion 131 and the deformable portion 421 preferably at least partially overlap in the Z-axis direction, that is, the vertical projection of the acting portion 131 and the deformable portion 421 on the lower housing 410' At least partially overlap. Furthermore, when the movable shaft 130 is at the unpressed position, the deformable portion 421 has a first spatial relationship with the light transmission path, and the light signal received by the light receiver 153 has the first intensity. In this embodiment, when the movable shaft 130 is in the unpressed position, the deformable portion 421 enters the light transmission path less, the deformable portion 421 blocks the light signal with a lower amount, and the light receiver The first intensity of the optical signal received by 153 is stronger. For example, when the movable shaft 130 is in the unpressed position, the deformable portion 421 is preferably located above the light transmission path, so that the light signal emitted by the light emitter 152 is preferably received by the light without being blocked by the deformable portion 421 Receiver 153 makes the optical signal intensity relatively strong (for example, unobstructed/attenuated optical signal intensity).

As shown in FIG. 21B, when the movable shaft 130 moves from the unpressed position to the pressed position in response to the pressing force, the movable shaft 130 moves along the motion path to compress the elastic member 140 and push against the deformable portion 421 to move, so that the deformable portion 421 It no longer has the first spatial relationship with the optical transmission path, so that the optical signal received by the optical receiver 153 has a second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module 150 to generate a trigger signal. In other words, when the movable shaft 130 moves along the movement path toward the bottom of the lower housing 110 to the pressing position, the acting portion 131 pushes the deformable portion 421 and moves downward to change the spatial relationship between the deformable portion 421 and the light transmission path, thereby changing The intensity of the light signal received by the light receiver 153 triggers the switch module 150 to generate a trigger signal. In this embodiment, the first spatial relationship represents that the deformable portion 421 is far away from the light transmission path, and the deformable portion 421 does not substantially change the intensity of the light signal received by the light receiver 153. When the deformable portion 421 and the light transmission path no longer have the first spatial relationship, it means that the deformable portion 421 enters the light transmission path, and the deformable portion 421 attenuates the light signal intensity received by the light receiver 153, so that the second intensity is less than In the first intensity, the trigger switch module 150 generates a trigger signal.

Specifically, when the keycap is pressed to drive the movable shaft 130 to move toward the bottom of the lower housing 410', the acting portion 131 moves downward along the movement path with the movable shaft 130, so that the end (ie, the lower end) of the acting portion 131 abuts Connect and press down the deformable portion 421 (such as the horizontal section of the connecting portion 4211 or the shielding portion 4212), so that the deformable portion 421 elastically deforms downward with the connecting end of the connecting portion 4211 as a fulcrum, and at least partially blocks the light signal ( For example, at least partially shield the grating hole 1181), so that the second intensity When the intensity is less than the first intensity, the switch module 150 generates a trigger signal.

22 to 24B are schematic diagrams of the ninth embodiment of the present invention, wherein FIG. 22 is an exploded schematic view of the optical switch button of the ninth embodiment of the present invention, and FIG. 23 is a schematic diagram of the lower case of the optical switch button of FIG. 22, and 24A and 24B are a top view and a three-dimensional schematic diagram of the optical switch button of FIG. 22 without the keycap. As shown in FIGS. 22 to 24B, the optical switch button 31 of the ninth embodiment of the present invention includes a keycap 310, a supporting mechanism 320, a return mechanism 530, a switch module 340, and a bottom plate 350, and the optical switch button 31 can be selectively changed. Contains a backlight 360. The difference between the optical switch button 31 of FIG. 22 and the optical switch button 30 of FIG. 10 lies in the form of the deformable portion 533 of the lower housing 535. Therefore, the structural details and connection relationship of the remaining components of the optical switch button 31 (such as the keycap 310, the support mechanism 320, the switch module 340, the bottom plate 350, the backlight source 360, etc.), and the corresponding structures of the recovery mechanism 530 and the recovery mechanism 330 For details and connection relationship, please refer to the related description of the optical switch button 30 of the fifth embodiment, which will not be repeated here.

In this embodiment, the casing 531 is formed by combining the upper casing 334 and the lower casing 535, and the deformable portion 533 is preferably an elastic arm extending from the lower casing 535 in the notch 3343 of the upper casing 334. As shown in FIG. 23, the deformable portion 533 is preferably an elastic arm including a connecting portion 5331 and a shielding portion 5332. The connecting portion 5331 preferably extends from the wall surface of the bottom end of the U-shaped horizontal section of the lower casing 535 toward the open end of the U-shaped horizontal section, and extends upward in the direction of the upper casing 334, and then extends horizontally in the direction of the acting portion 131 to act 131 below. In this embodiment, the length of the connecting portion 5331 extending upward from the lower housing 535 is preferably such that the connecting portion 5331 partially extends horizontally above the light transmission path. The shielding portion 5332 is located at the free end of the deformable portion 533. When the horizontal section of the connecting portion 5331 is pushed by the acting portion 131, the shielding portion 5332 is driven to elastically deform downward relative to the lower housing 535. In one embodiment, the shielding portion 5332 of the deformable portion 533 preferably has a size that can substantially completely shield the light signal, but not This is limited. In other embodiments, the shielding portion 5332 of the deformable portion 533 at least partially shields the light signal.

The operation of the optical switch button 31 of the ninth embodiment of the present invention will be described later with reference to FIGS. 24A and 24B. As shown in FIGS. 24A and 24B, when the keycap 310 is not pressed, the protrusion 323 and the deformable portion 533 at least partially overlap in the direction of movement of the parallel keycap 310 (for example, the Z-axis direction), and the deformable portion 533 and the light transmission The path has a first spatial relationship, and the optical signal received by the optical receiver 343 has the first intensity. When the keycap 310 is pressed, the keycap 310 drives the support mechanism 320 to move, so that the elastic member 332 is compressed and the protrusion 323 pushes against the deformable part 533 to move, so that the deformable part 533 and the light transmission path no longer have a first space Therefore, the optical signal received by the optical receiver 343 has the second intensity, and the second intensity is different from the first intensity, so that the switch module 340 is triggered to generate the trigger signal.

In this embodiment, the first spatial relationship represents that the deformable portion 533 is far away from the light transmission path, and the deformable portion 533 does not substantially change the intensity of the light signal received by the light receiver 343. When the deformable portion 533 and the light transmission path no longer have the first spatial relationship, it means that the deformable portion 533 enters the light transmission path, and the deformable portion 533 attenuates the optical signal intensity received by the light receiver 343, so that the second intensity is less than In the first intensity, the trigger switch module 340 generates a trigger signal.

Specifically, when the keycap 310 is pressed to drive the support mechanism 320 to move, the protruding portion 323 pushes against the connecting portion 5331 or the shielding portion 5332 of the deformable portion 533, so that the shielding portion 5332 is connected to the lower housing 535 by the connecting portion 5331 The end serves as a fulcrum to elastically deform downwards, thereby at least partially blocking the light signal, so that the second intensity is less than the first intensity. In one embodiment, when the keycap 310 is pressed to drive the protrusion 323 to move, the deformable portion 533 can preferably completely block the optical signal, so that the optical receiver 343 cannot receive the optical signal (ie, the second intensity is zero). It should be noted here that by changing the circuit design of the circuit board 341, the switch module 340 can generate a trigger signal according to the change in the amount of light received by the optical receiver 343, or whether the optical receiver 343 receives an optical signal To generate a trigger signal.

FIGS. 25-27B are schematic diagrams of the tenth embodiment of the present invention, wherein FIG. 25 is an exploded diagram of the optical switch button of the tenth embodiment of the present invention, and FIG. 26 is a schematic diagram of the upper shell of the optical switch button of FIG. 25, and 27A and 27B are a top view and a three-dimensional schematic diagram of the optical switch button of FIG. 25 without the keycap. As shown in FIGS. 25-27B, the optical switch button 31' of the tenth embodiment of the present invention includes a keycap 310, a supporting mechanism 320, a return mechanism 530', a switch module 340, and a bottom plate 350, and the optical switch button 31' can Optionally, a backlight 360 is included. The difference between the optical switch button 31' of FIG. 25 and the optical switch button 30' of FIG. 13 lies in the form of the deformable portion 538 of the upper housing 534. Therefore, the structural details and connection relationships of the remaining components of the optical switch button 31' (such as the keycap 310, the support mechanism 320, the switch module 340, the base plate 350, the backlight source 360, etc.), as well as the restoration mechanism 530' and the restoration mechanism 330, For the corresponding structural details and connection relationship of 330', please refer to the relevant description of the optical switch button of the fifth or sixth embodiment, which will not be repeated here.

In this embodiment, the housing 531' is formed by combining the upper housing 534 and the lower housing 535', and the deformable portion 538 is preferably an elastic arm extending from the upper housing 534 to the notch 3343 of the upper housing 534. As shown in FIG. 26, the deformable portion 538 is preferably an elastic arm including a connecting portion 5381 and a shielding portion 5382. One end of the connecting portion 5381 is connected to the upper housing 534, and the other end of the connecting portion 5381 is connected to the shielding portion 5383. The connecting portion 5381 of the deformable portion 538 is preferably a rod-shaped portion or an arm-shaped portion having any suitable shape, wherein one end of the connecting portion 5381 is preferably connected to one of the right arm portion 3346 or the left arm portion 3345, and the connecting portion The other end of the 5381 extends in the direction of the other arm to connect to the shielding portion 5382 to form a free end of the deformable portion 538. For example, one end of the connecting portion 5381 of the deformable portion 538 is connected to the right arm portion 3346, and the other end of the connecting portion 5381 extends toward the left arm portion 3345 and partially corresponds to the opening of the notch 3343. The shielding portion 5382 is preferably connected laterally from the end of the connecting portion 5381 and extends downward along the Z-axis direction. Furthermore, according to practical applications, the deformable portion 538 can have any suitable shape. The elastic arm is shaped so that the deformable portion 538 has a free end corresponding to the protruding portion 323 and a connecting end connected to the upper housing 534, and the free end can be pushed by the protruding portion 323 to move (or elastically deform) relative to the connecting end. In one embodiment, the shielding portion 5382 of the deformable portion 538 preferably has a size that can substantially completely shield the light signal, but it is not limited thereto. In other embodiments, the shielding portion 5382 of the deformable portion 538 at least partially shields the light signal.

The operation of the optical switch button 31' of the tenth embodiment of the present invention will be described later with reference to FIGS. 27A and 27B. As shown in FIGS. 27A and 27B, when the keycap 310 is not pressed, the protrusion 323 and the deformable portion 538 at least partially overlap in the moving direction of the parallel keycap 310 (for example, the Z-axis direction), and the deformable portion 538 and the light transmission The path has a first spatial relationship, and the optical signal received by the optical receiver 343 has the first intensity. When the key cap 310 is pressed, the key cap 310 drives the support mechanism 320 to move, so that the elastic member 332 is compressed and the protrusion 323 pushes against the deformable part 538 to move, so that the deformable part 538 and the light transmission path no longer have a first space Therefore, the optical signal received by the optical receiver 343 has the second intensity, and the second intensity is different from the first intensity, so that the switch module 340 is triggered to generate the trigger signal.

In this embodiment, the first spatial relationship represents that the deformable portion 538 is far away from the light transmission path (for example, located above the light transmission path), and the deformable portion 538 does not substantially change the intensity of the light signal received by the light receiver 343. When the deformable part 538 and the light transmission path no longer have the first spatial relationship, it means that the deformable part 538 enters the light transmission path, and the deformable part 538 attenuates the intensity of the light signal received by the light receiver 343, so that the second intensity is less than In the first intensity, the trigger switch module 340 generates a trigger signal.

Specifically, when the keycap 310 is pressed to drive the support mechanism 320 to move, the protrusion 323 pushes against the connecting portion 5381 or the shielding portion 5382 of the deformable portion 538, so that the shielding portion 5382 is connected to the upper housing 534 by the connecting portion 5381 The end serves as a fulcrum to elastically deform downwards, thereby at least partially blocking The light signal makes the second intensity smaller than the first intensity. In one embodiment, when the keycap 310 is pressed to drive the protrusion 323 to move, the deformable portion 538 can preferably completely block the light signal, so that the light receiver 343 cannot receive the light signal (that is, the second intensity is zero). It should be noted here that by changing the circuit design of the circuit board 341, the switch module 340 can generate a trigger signal according to the change in the amount of light received by the optical receiver 343, or whether the optical receiver 343 receives an optical signal To generate a trigger signal.

It should be noted here that in the embodiment of FIGS. 1A to 15B, although the changing action portion 131 (or the protrusion 323) and the deformable portion have corresponding first and second inclined surfaces, so that the deformable portion is affected by The action part 131 (or the protruding part 323) pushes and displaces laterally, but not limited to this. In other embodiments, by changing the design of the acting portion 131 (or the protrusion 323) and the deformable portion, only one of the acting portion 131 (or the protrusion 323) and the deformable portion has a suitable slope, or The deformable portion and the acting portion 131 (or the protruding portion 323) move relative to each other along the inclined surface, and then push the deformable portion against lateral displacement. In the embodiment of FIGS. 16A to 27B, the acting portion 131 (or the protrusion 323) and the deformable portion do not have corresponding slopes, so that the deformable portion is pushed by the acting portion 131 or the protrusion 323 as the working portion 131 or protrusion 323 moves along the movement path. Furthermore, in the embodiment of FIGS. 16A to 27B, although the deformable portion is pushed by the acting portion 131 or the protruding portion 323 to at least block the light signal as an example, it is not limited to this. In other embodiments, the design of the deformable part and the acting part (or protrusion) can be changed so that when the optical switch button is not pressed, the deformable part enters the light transmission path more or blocks the amount of light signal When the optical switch is pressed in the pressing position, the deformable part is pushed by the acting part (or the protruding part) and shifts downward, so that the amount of light signal blocked by the deformable part is less, and the light receiver 153 receives The intensity of the light signal is relatively strong (that is, the second intensity is greater than the first intensity), and the trigger switch module 150 generates the trigger signal.

In addition, in the above fifth, sixth, ninth, and tenth embodiments, although the support The protruding part 323 of the supporting mechanism 320 pushes against the deformable part of the housing, but is not limited to this. In other embodiments, the design of the deformable portion can be changed, and the bracket of the supporting mechanism 320 is pushed against the deformable portion without providing a protrusion. Specifically, when the keycap at the position is not pressed, the deformable portion may have a length extending below the support mechanism 320, so that when the keycap is pressed, the support mechanism 320 moves downward and can push against the deformable portion to change the light receiving The intensity of the light signal received by the receiver. For example, when the key cap is not pressed, the deformable portion and the vertical projection of the key cap end of the inner bracket 321 of the support mechanism 320 on the bottom plate substantially at least partially overlap, that is, the deformable portion extends below the key cap end of the inner bracket 321 . Therefore, when the key cap is pressed and the supporting mechanism 320 moves downward, the key cap end of the inner bracket 321 can be pushed against the deformable part to move, so as to change the intensity of the light signal received by the light receiver. Furthermore, according to practical applications, the inner edge of the keycap end of the inner bracket 321 and the deformable portion may or may not have corresponding slopes, so that when the keycap is pressed, the inner bracket 321 pushes against the deformable portion for lateral displacement or straight downward displacement.

The present invention has been described by the above-mentioned embodiments, but the above-mentioned embodiments are only for illustrative purposes and not for limitation. Those skilled in the art should know that without departing from the spirit of the present invention, the embodiments specifically described herein may have other modifications to the illustrated embodiments. Therefore, the scope of the present invention also covers such modifications and is only limited by the scope of the attached patent application.

110‧‧‧Lower shell

111‧‧‧Deformable part

1111‧‧‧Second Incline

117‧‧‧Open

1181‧‧‧Grating hole

120‧‧‧Upper shell

130‧‧‧Activity axis

131‧‧‧Action Department

1311‧‧‧First Incline

132‧‧‧ Actuation Department

141‧‧‧Spring body

143‧‧‧Extension arm

151‧‧‧Circuit board

155‧‧‧Avoidance Space

161‧‧‧Light Guide

162‧‧‧Backlight

Claims (22)

An optical switch key includes: a housing with a deformable part extending from the housing to form a free end; a movable shaft movably arranged on the housing in response to a pressing force, The movable shaft can move up and down in an unpressed position and a pressed position along a moving path; an elastic member is arranged in the housing, and the elastic member is coupled to the movable shaft, when the pressing force is removed Afterwards, the elastic member returns the movable shaft to the unpressed position; and a switch module including a circuit board, a light emitter and a light receiver, the light emitter and the light receiver are electrically connected to the circuit Board, and the light transmitter emits a light signal, the light signal reaches the light receiver along a light transmission path; wherein when the movable shaft is located at the unpressed position, the deformable portion is in line with the light transmission path Having a first spatial relationship, the light signal received by the light receiver has a first intensity; wherein when the movable axis moves from the unpressed position to the pressed position due to the pressing force, the movable axis moves along the The path moves to compress the elastic member and push the deformable part to move the free end, so that the deformable part and the light transmission path no longer have the first spatial relationship, so that the light receiver receives The light signal has a second intensity, and the second intensity is different from the first intensity to trigger the switch module to generate a trigger signal. The optical switch button according to claim 1, wherein when the movable shaft is in the unpressed position, the deformable portion enters the light transmission path less, the deformable portion blocks the light signal with a lower amount, and the light The optical signal received by the receiver is the first intensity; wherein when the movable shaft is located at the pressing position, the deformable part moves laterally away from the movement path, and the deformable part enters the light transmission path more, The deformable portion blocks the optical signal with a high amount, and the optical signal received by the optical receiver Is the second intensity such that the second intensity is smaller than the first intensity. The optical switch button according to claim 1, wherein the movable shaft has an action portion, the action portion protrudes along the movement path and corresponds to the deformable portion, and when the movable shaft is in the unpressed position, the action portion and The deformable portion at least partially overlaps in a direction parallel to the movement path; when the movable shaft moves along the movement path and pushes the deformable portion to move laterally, the acting portion and the deformable portion are in a direction perpendicular to the movement path At least partial contact. The optical switch button according to claim 3, wherein the acting portion has a first inclined surface, the deformable portion has a second inclined surface, the first inclined surface corresponds to the second inclined surface, and when the movable shaft moves along the movement path At this time, the first inclined surface moves relative to the second inclined surface, so that the deformable portion moves laterally. The optical switch button according to claim 3, wherein the circuit board further has an escape space, and when the movable shaft is located at the pressing position, the end of the action part exceeds the deformable part and enters the escape space. The optical switch button according to claim 1, wherein the housing is formed by combining an upper housing and a lower housing, the upper housing has a through hole and an upper engaging portion, and the movable shaft can be movably inserted The elastic member is positioned in the through hole, the deformable portion is disposed on the lower housing, and the lower housing has a lower engaging portion for engaging with the upper engaging portion to make the upper housing Connect the lower shell. The optical switch button according to claim 1, wherein the housing is formed by combining an upper housing and a lower housing, the upper housing has a through hole and an upper engaging portion, and the movable shaft can be movably inserted The elastic member is positioned in the through hole, the deformable portion is disposed on the upper shell, and the lower shell has a lower engaging portion for engaging with the upper engaging portion to make the upper shell Connect the lower shell. The optical switch button according to claim 7, wherein the housing further has a grating portion, the grating portion has a grating hole and is located between the light emitter and the light receiver, and the deformable portion has a horizontal An extension shaft, when the movable shaft is at the unpressed position, the horizontal extension shaft does not pass through the grating hole; when the deformable portion moves laterally away from the movement path, the horizontal extension shaft passes through the grating hole. The optical switch button according to claim 7, wherein the circuit board further has a positioning hole, the lower casing has a positioning post, and the positioning post is inserted into the positioning hole to position the casing on the circuit board. The optical switch button according to claim 7, further comprising a light guide rod and a backlight light source, wherein the light guide rod is disposed in the housing corresponding to the elastic member, and the backlight light source is electrically connected to the circuit board corresponding to the light guide rod A light is provided to project toward the movable axis. An optical switch button, comprising: a housing; a movable shaft movably arranged on the housing, in response to a pressing force, the movable shaft can move up and down along a movement path in an unpressed position and a pressed position Position; an elastic member, arranged in the housing, the elastic member is coupled to the movable shaft, when the pressing force is removed, the elastic member makes the movable shaft return to the unpressed position; a switch module, It includes a circuit board, a light transmitter and a light receiver, the light transmitter and the light receiver are electrically connected to the circuit board, and the light transmitter emits a light signal, the light signal along a light transmission path Reaching the light receiver; and a shielding member disposed on the housing to extend relative to the housing to form a free end, wherein when the movable shaft is at the unpressed position, the shielding member and the light transmission path have A first spatial relationship, the light signal received by the light receiver is a first intensity; wherein when the movable shaft moves from the unpressed position to the pressed position due to the pressing force, the movable shaft follows the movement path Move to compress the elastic member and drive the free end of the shielding member to move, so that the shielding member and the light transmission path no longer have the first spatial relationship, The optical signal received by the optical receiver is a second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module to generate a trigger signal. The optical switch button according to claim 11, wherein when the movable shaft is at the unpressed position, the shielding member enters the light transmission path less, the shielding member blocks the light signal with a lower amount, and the light receiver The received light signal is the first intensity; wherein when the movable shaft is located at the pressing position, the shielding member moves laterally away from the motion path, the shielding member enters the light transmission path more partly, and the shielding member blocks The amount of the optical signal is relatively high, and the optical signal received by the optical receiver has the second intensity, so that the second intensity is smaller than the first intensity. The optical switch button according to claim 11, wherein when the movable shaft is located at the unpressed position, the shielding member is located in the light transmission path, the shielding member blocks the light signal, and the light received by the light receiver The signal is the first intensity; wherein when the movable shaft is located at the pressing position, the shielding member moves laterally away from the light transmission path, and the light signal received by the light receiver is the second intensity, making the second intensity The intensity is greater than the first intensity. The optical switch button according to claim 11, wherein the housing is formed by a combination of an upper housing and a lower housing, the upper housing has a through hole and an upper engaging portion, and the movable shaft is movably inserted In the through hole to position the elastic member, the lower housing has a lower engaging portion for engaging with the upper engaging portion so that the upper housing is connected to the lower housing, and the housing further has A grating portion, the grating portion has a grating hole and is located between the light emitter and the light receiver, the shielding member has a shielding portion, the shielding portion corresponding to the movement of the movable axis is selectively relative to the light emitting portion Mask the grating hole. An optical switch button, comprising: a key cap; a supporting mechanism arranged under the key cap and supporting the key cap to move up/down; A restoring mechanism corresponding to the supporting mechanism is provided under the key cap to provide a restoring force to make the key cap return to the position before the key is pressed. The restoring mechanism includes a housing and an elastic member. The elastic member Is disposed in the housing, and the housing has a deformable portion extending from the housing to form a free end; and a switch module including a circuit board, a light emitter and a light receiver The optical transmitter and the optical receiver are electrically connected to the circuit board, and the optical transmitter emits an optical signal corresponding to the optical receiver, wherein when the key cap is not pressed, the optical receiver receives the light The signal is a first intensity; when the key cap is pressed, the key cap drives the support mechanism to move, so that the elastic member is compressed and the support mechanism pushes against the deformable portion to move the free end to change the light receiver The received optical signal is a second intensity, and the second intensity is different from the first intensity, so as to trigger the switch module to generate a trigger signal. The optical switch button according to claim 15, wherein the supporting mechanism includes an inner bracket and an outer bracket, the inner bracket is pivotally connected to the inner side of the outer bracket to form a scissor type supporting mechanism, and the supporting mechanism has a protrusion , The protruding portion extends and protrudes from the inner bracket toward an inner side of the inner bracket. The optical switch button according to claim 16, wherein when the support mechanism is driven to move by pressing the keycap, the protrusion moves against the deformable portion to at least partially block the optical signal, so that the second intensity is less than the first intensity One intensity. The optical switch key according to claim 16, wherein when the keycap is not pressed, the protrusion and the deformable part at least partially overlap in a direction parallel to the movement direction of the keycap; when the keycap is pressed, the protrusion The deformable portion is pushed against and moves laterally, and the protruding portion and the deformable portion are at least partially in contact with the moving direction perpendicular to the key cap. The optical switch button according to claim 16, wherein the protruding portion has a first inclined surface, the deformable portion has a second inclined surface, and the first inclined surface corresponds to the second inclined surface, and when the keycap drives the supporting mechanism to move At this time, the first inclined surface moves relative to the second inclined surface, so that the deformable portion moves laterally. The optical switch button according to claim 15, wherein the housing is formed by a combination of an upper housing and a lower housing, the upper housing has a through hole and an upper engaging portion, and the deformable portion is disposed on the lower The lower housing has a lower engaging portion for engaging with the upper engaging portion, so that the upper housing is connected to the lower housing. The optical switch button according to claim 15, wherein the housing is formed by a combination of an upper housing and a lower housing, the upper housing has a through hole and an upper engaging portion, and the deformable portion is disposed on the upper The lower housing has a lower engaging portion for engaging with the upper engaging portion, so that the upper housing is connected to the lower housing. The optical switch button according to claim 20 or 21, wherein the housing further has a grating portion, the grating portion is located between the light emitter and the light receiver, when the key cap is pressed, the supporting mechanism pushes Move against the deformable part to change the relative position of the deformable part and the grating part.

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