TW201917481A - Light path adjustment mechanism and fabrication method thereof - Google Patents

Abstract

A light path adjustment mechanism includes a base, an optical element, a first connection machine part, and a second connection machine part. The base is provided with a first hole and a second hole respectively on its first region and second region, and the optical element is disposed on the base. One end of the first connection machine part is coupled to the first region through the first hole, and one end of the second connection machine part is coupled to the second region through the second hole. The first hole has integrally-formed screw threads or is provided with a nut.

Description

 Optical path adjusting mechanism and manufacturing method thereof  

The present invention relates to an optical path adjusting mechanism.

In recent years, various image display technologies have been widely used in daily life. In an image display device, for example, an optical path adjusting mechanism can be provided to change the traveling light path of the light in the device to provide various effects such as improving imaging resolution and improving picture quality. However, the number, weight, and volume of the components of the conventional optical path adjusting mechanism are large, and it is difficult to further miniaturize. Therefore, there is a need for an optical path adjustment mechanism that is simple in structure, high in reliability, and capable of greatly reducing weight and volume.

The "prior art" paragraphs are only intended to aid in understanding the present invention, and thus the disclosure of the "prior art" section may contain some conventional techniques that are not known to those of ordinary skill in the art. The matters disclosed in the "Prior Art" section do not necessarily represent the subject matter or the problems to be solved by one or more embodiments of the present invention, which are known or recognized by those of ordinary skill in the art prior to the present application.

Other objects and advantages of the present invention will be further understood from the technical features disclosed in the embodiments of the present invention.

An embodiment of the present invention provides an optical path adjustment mechanism including a base, an optical component, a first connecting mechanism, and a second connecting mechanism. The base is provided with a first area and a second area at two opposite positions. The first area and the second area are respectively provided with a first hole and a second hole, and the optical element is disposed on the base. One end of the first connecting member is connected to the first region of the base via the first hole, and one end of the second connecting member is connected to the second region of the base via the second hole. The optical path adjusting mechanism satisfies one of the following conditions: (1) the first hole is provided with an integrally formed thread; and (2) the first hole is provided with a nut.

Another embodiment of the present invention provides an optical path adjusting mechanism including a base, an optical component, and a first connecting mechanism. The base is provided with a first area and a second area at two opposite positions, the first area is provided with a first hole, and the optical element is disposed on the base. The first connecting mechanism comprises a columnar fastener, the cylindrical fastener is inserted into the first hole and no dispensing is used to mechanically fix the first connecting member to the first region of the base, and the optical component is free The area of substantial stress concentration is generated.

Another embodiment of the present invention provides an optical path adjusting mechanism including a base, an optical component, and a first connecting mechanism. The base is provided with a first area and a second area at two opposite positions, and the optical element is disposed on the base. The first connecting member includes a clamping fastener and the clamping fastener is provided with an elastomer or a non-elastic body that can deform. The optical path adjusting mechanism satisfies one of the following conditions: (1) the first region is provided with a first hole, and the clamping fastener is placed in the first hole, and the first connecting member is formed by a deformable elastic body or non-elastic body Clamping and fixing to the first region of the pedestal and causing no optical stress concentration region of the optical element to be generated; and (2) the first region is provided with a first recessed hole, and the clamping fastener portion is placed into the first recessed hole by A deformed elastomer or non-elastomer may be created to clamp the first connector member to the first region of the base and to create an area where the optical element is free of substantial stress concentrations.

According to the design of the above embodiment, since a stress concentration area is not formed at the connection between the connecting member and the optical element, the optical element can be greatly reduced or the stress can be eliminated, which is advantageous for providing improved imaging resolution and image quality (eliminating darkness). Area, soften the edges of the image) and other effects.

Other objects and advantages of the present invention will become apparent from the technical features disclosed herein. The above and other objects, features, and advantages of the invention will be apparent from

100‧‧‧Light path adjustment mechanism

110‧‧‧ Shelf

112‧‧‧Optical components

112a, 112b‧‧‧ fixing holes

113, 113a, 113b‧‧‧ hot melt bulge

114‧‧‧Base

120‧‧‧Activity components

122‧‧‧ coil group

122a‧‧‧ coil

124‧‧‧ Magnet

125‧‧‧ magnetic body

130‧‧‧Connected parts

131‧‧‧ shaft

132, 134‧‧‧ leaf spring

132a, 132b‧‧‧ fixing holes

133‧‧‧Control parts

134a, 134b‧‧‧ fixing holes

137‧‧ ‧ spring

140‧‧‧ frame

140a, 140b‧‧‧ fixing holes

142, 144, 146‧‧ ‧ grip fasteners

142a‧‧‧Positioning column

146a‧‧‧ fastener parts

150‧‧‧Piezoelectric components

170, 170a, 170b‧‧‧ nuts

171a, 171b‧‧ hole

172‧‧‧ recessed hole

180‧‧‧ screws

200‧‧‧Light path adjustment mechanism

210‧‧‧ linkages

212‧‧‧ lenses

212a‧‧‧Lens body

212b, 212c‧‧‧ Positioning Department

214‧‧‧ lens holder

214a, 214b‧‧‧ fixing holes

215‧‧‧ bearing seat

220‧‧‧Activity components

222‧‧‧ coil group

224‧‧‧ magnet

230, 230a, 230b‧‧‧ connected parts

232‧‧‧ leaf spring

232a, 232b, 232c, 232d‧‧‧ fixing holes

232e‧‧‧ Ring Department

232f, 232g‧‧‧ extension

240‧‧‧ frame

240a, 240b‧‧‧ fixing holes

242‧‧‧Front frame

300‧‧‧Optical device

310‧‧‧Lighting system

312‧‧‧Light source

312R, 312G, 312B‧‧‧Lighting diode

314‧‧‧ Beam

314a‧‧‧Subimage

316‧‧‧Lighting device

317‧‧‧Light column

318‧‧‧ lens group

319‧‧‧Internal total reflection稜鏡

320‧‧‧Digital micromirror device

330‧‧‧Projection lens

340‧‧‧Light path adjustment mechanism

350‧‧‧ screen

A‧‧‧ axis

H‧‧‧ Hole

M‧‧‧ initial position

P, Q‧‧‧ direction of rotation

S, S’‧‧‧ first area

T, T’‧‧‧ second area

Θ‧‧‧ angle

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view showing an optical path adjusting mechanism according to an embodiment of the present invention.

2 is a schematic view of the optical path adjusting mechanism of FIG. 1 after assembly.

3 is a schematic view showing an actuated state of a linking member according to an embodiment of the present invention.

Fig. 4 is an exploded perspective view showing an optical path adjusting mechanism according to another embodiment of the present invention.

FIG. 5 is a schematic view of the optical path adjusting mechanism of FIG. 4 after assembly.

Fig. 6 is a schematic view showing the configuration of a coil accommodating structure according to an embodiment of the present invention.

Figure 7 is a schematic illustration of an actuation assembly in accordance with another embodiment of the present invention.

FIG. 8 is a schematic diagram of an optical path adjusting mechanism applied to an optical system according to an embodiment of the present invention.

9A and 9B are schematic perspective and cross-sectional views showing an optical path adjusting mechanism in which a connecting mechanism is mechanically fixed according to an embodiment of the invention.

Figure 10 is a cross-sectional view showing an optical path adjusting mechanism for mechanically fixing a connecting mechanism according to another embodiment of the present invention.

11A, 11B, and 11C are schematic views showing the clamp fasteners of various embodiments of the present invention.

FIG. 12A is a schematic diagram showing an optical path adjusting mechanism according to another embodiment of the present invention.

Figure 12B is a schematic diagram showing an optical path adjusting mechanism according to another embodiment of the present invention.

13A and 13B are schematic diagrams showing an optical path adjusting mechanism according to another embodiment of the present invention.

Fig. 14A is a stress distribution diagram of a self-tapping connecting optical element and a connecting member, and Fig. 14B is a stress distribution diagram of the optical path adjusting mechanism according to an embodiment of the present invention.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is for the purpose of illustration and not limitation.

The disclosure in the following embodiments discloses an optical path adjustment mechanism that can be applied to different optical systems (eg, display devices, projection devices, etc.) to adjust or change the optical path to provide, for example, improved imaging resolution, improved image quality (eliminating darkness). The effect of the area and the softening of the image edge is not limited, and the arrangement position and arrangement of the optical path adjusting mechanism in the optical system are not limited at all. The optical path adjusting mechanism may include, for example, a link member, an actuating member, a connecting member, and a part or all of the members of the frame. In various embodiments as described below, the linkage or carrier may comprise an optical element that deflects the light, and the linkage or carrier may further comprise a carrier carrying the optical component, the linkage or the actuation of the carrier The form may be, for example, rotation, vibration, movement, or the like without limitation; the actuation assembly only needs to be able to produce the effect of driving the linkage, and the constituent members thereof are not limited, and may be, for example, electromagnetics including magnets and coil sets (or coils). Inductive component; the connecting mechanism can have the property of changing to the original size and shape when the external force is removed after deformation, for example, at least slightly elastic or flexible, and the connecting mechanism can be used to connect the parts, or It can be used for various power transmission parts, buffer vibrations or control mechanisms for controlling motion. The connecting parts can be, for example, bolts, keys, pins, rivets, springs, leaf springs, wire springs, flexible sheets. The frame body or the flexible leaf-like mechanism and the like; the frame body only needs to be able to define an accommodation space, which can be a base, a frame or an outer frame having different forms or shapes without limitation.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view showing an optical path adjusting mechanism according to an embodiment of the present invention. As shown in FIG. 1, the optical path adjusting mechanism 100 includes a rack 110, an actuating component 120, a connecting mechanism 130, and a frame 140. In this embodiment, the carrier 110 includes an optical element 112 that can deflect light, such as a lens, and the lens only needs to provide an effect of deflecting light. The form and type thereof are not limited, and may be, for example, one. Lens or a mirror. In another embodiment, a carrier can also be included, and then an optical component is disposed on the carrier or the carrier and the optical component are integrally formed. In this embodiment, the actuation component 120 can be, for example, an electromagnetic induction component including the coil assembly 122 and the magnet 124. In another embodiment, for example, another coil assembly can be used as a magnetic or magnetic material instead of the magnet. Another coil set (not shown) of the frame 140 can also generate electromagnetic force with the coil set wound around the carrier 110 to drive the carrier 110. In the present embodiment, the connecting mechanism 130 can be, for example, two thin metal leaf springs 132, 134 having restoring forces. The two ends of the leaf spring 132 may have a pin fixing hole 132a and a screw fixing hole 132b. The two ends of the leaf spring 134 may have a pin fixing hole 134a and a screw fixing hole 134b. The two ends of the optical element 112 may be provided with fixing holes 112a and 112b. And fixing holes 140a, 140b can be disposed at both ends of the frame 140. In an assembly embodiment, the carrier 110 is disposed in the frame 140, and the magnet 124 can be fixed to the frame 140. The coil assembly 122 can be disposed outside the optical component 112 and can be wound around the periphery of the optical component 112, for example. One end of the spring 132 can be fixed to the optical element 112 via a fixing hole 132a corresponding to the position, and the fixing hole 112a is fixed by a fixing member such as a screw or a pin. The other end of the leaf spring 132 can be fixed via the corresponding fixing hole 132b and the fixing hole 140a. To the frame 140, the leaf spring 132 is disposed between the optical element 112 and the frame 140. The assembled optical path adjusting mechanism 100 is as shown in FIG. Therefore, the leaf springs 132, 134 disposed at both ends of the optical element 112 can be formed to be connected to the optical element 112, and the wiring direction of the leaf springs 132, 134 can substantially coincide with the rotation axis A of the carrier 110, and the optical element 112 can be rotated to the axis A. For reciprocating motion of the axis, for example, the axis A can be rotated clockwise or counterclockwise or oscillated. As shown in FIG. 3A, in an embodiment, the electromagnetic force between the coil group 122 and the magnet 124 allows the optical element 112 to be rotated by an angle θ from the initial position M in the rotational direction P about the axis A of the rotation, and the leaf spring 132 The restoring force of 134 can rotate the optical element 112 back to the initial position M in the opposite rotational direction Q; in another embodiment, another electromagnetic force can be applied between the coil set 122 and the magnet 124 to assist in the recovery of the leaf springs 132, 134. The force rotates the optical element 112 back to the initial position M in the opposite rotational direction Q, so that the optical element 112 can be reciprocally oscillated to different positions to deflect the incident light to different directions, obtaining the effect of adjusting or changing the traveling path of the light. In one embodiment, the rotational angle θ of the carrier 110 can range from -1 to 1 degree, preferably from +/- 0.2 to +/- 0.5 degrees, and can be, for example, +/- 0.32 degrees. By adjusting or changing the optical path by the optical path adjusting mechanism of the embodiment of the present invention, different effects can be generated according to actual needs, for example, it can be used to improve projection resolution, improve image quality (eliminate dark areas, soften image edges), and the like without limitation.

4 is an exploded perspective view of an optical path adjusting mechanism according to another embodiment of the present invention, and FIG. 5 is a schematic view of the optical path adjusting mechanism of FIG. 4 after being assembled. As shown in FIG. 4 and FIG. 5, in the embodiment, the linking member 210 of the optical path adjusting mechanism 200 can include, for example, a lens 212 and a lens holder 214 for receiving the lens 212. The actuation component 220 can be, for example, a coil assembly. The electromagnetic induction component of the 222 and the magnet 224, the coil assembly 222 can be wound around the lens holder 214 and can be wound around the periphery of the lens holder 214, for example, and the magnet 224 can be fixed to the frame 240. The attachment member 230 can be, for example, an integrally formed leaf spring 232 that spans from one end of the lens holder 214 to the other end. The shape of the leaf spring 232 is not limited. In this embodiment, the leaf spring 232 has a ring portion 232e and two extending portions 232f and 232g extending from the ring portion 232e toward the both ends of the linking member 210, and two extending portions 232f, The direction of extension of 232g can substantially coincide with the axis of rotation A. The two ends of the leaf spring 232 can have fixing holes 232a, 232b, 232c, and 232d. The two ends of the lens holder 214 can be respectively provided with a fixing 214a (corresponding to the fixing 232b) and a fixing hole 214b (corresponding to the fixing hole 232c), and the frame 240 is A fixing hole 240a (corresponding to the fixing hole 232a) and a fixing hole 240b (corresponding to the fixing hole 232d) may be respectively disposed at both ends. The integrally formed leaf spring 232 can be disposed between the lens holder 214 and the frame 240 by fixing the fixing members such as screws (not shown) via the corresponding fixing holes. The extending direction of the leaf spring 232 substantially coincides with the rotation axis A of the linking member 210, and the linking member 210 (the lens 212 together with the lens holder 214) can rotate clockwise or counterclockwise about the axis A, and the restoring force of the leaf spring 232 can be linked. The member 210 is rotated back to the initial position in the opposite rotational direction. In another embodiment, another electromagnetic force can be applied between the coil assembly 222 and the magnet 224 to assist the restoring force of the leaf spring 232 to rotate the link member 210 back in the opposite rotational direction. The initial position, so the linkage 210 can be reciprocally oscillated to different positions, so that the lens 212 deflects the incident light to different directions, and obtains the effect of adjusting or changing the traveling path of the light.

According to the design of the above embodiment, since at least part of the structure (for example, the coil group or the coil) of the actuating assembly is directly disposed on the lens holder of the linking member, the overall volume, weight or component number of the optical path adjusting mechanism can be reduced, thereby facilitating The optical path adjustment mechanism is miniaturized or thinned to match various microelectronic devices.

The connecting mechanism of the various embodiments of the present invention is merely an example, and the connecting mechanism disposed between the optical component and the frame body can be various power transmitting transmission members or control mechanisms for buffering vibration or controlling motion without Restricted, for example, springs, leaf springs, wire springs, flexible sheet members or flexible leaf members, and the like. Furthermore, optical elements such as lenses may be provided on other carriers and are not limited to lens holders, and the frames may be frames or frames of different forms or shapes without limitation.

In an embodiment, the wire diameter of the coil group may be less than 0.2 mm, for example, 0.05 mm, and the manner in which the coil group is fixed on the linking member is not limited, for example, gluing may be used (for example, UV dispensing or outer enamel coating) ), heat fusion, socket, etc. The material of the frame may be, for example, metal (aluminum alloy, magnesium alloy, etc.) or plastic, and is not limited. The material of the magnet may be a hard magnet or a soft magnet, and may be, for example, a neodymium iron boron magnet (NdFeB). If the magnet is too large, it will increase the occupied space. If the magnet is too small, the magnetic force is insufficient. Therefore, the size of the magnet is preferably 14 mm × 7 mm × 5 mm - 0.5 mm × 0.5 mm × 0.5 mm, for example, 9 mm × 1.9 mm × 0.8. Mm, in one embodiment, may be, for example, 9 mm x 1.9 mm x 0.3 mm. The heat resistant temperature of the magnet may be less than 120 degrees.

In an embodiment, the natural frequency of the linkage can be adjusted by changing the weight of the bolt, the weight of the screw, adding the mass, and setting the pressure plate, so that the natural frequency of the linkage can be greater than 90 Hz to avoid resonance, and the height is higher. The natural frequency increases the reaction speed of the linkage and allows the linkage to reach a preset angle of rotation using a smaller actuator.

In an embodiment, at least part of the structure of the optical path adjusting mechanism may be a unitary structure to obtain, for example, a reduction in the number of parts, a simplified overall structure, and an effect of shortening assembly man-hours. For example, the connecting member, the lens and the frame can be integrally formed by the same material (for example, plastic or metal), or two of the components can be integrally formed first, for example, the connecting member, the lens is integrally formed or connected, The frame body can be integrally formed and then combined with other components. In this case, the combination can be fixed by bolting, dispensing or screwing. In another embodiment, the connecting member, the lens, the lens holder and the frame body can be integrally formed by using the same material (for example, plastic or metal), or at least two of the components are integrally formed before being combined with the remaining components. can. In another embodiment, as shown in FIG. 3, a rotating shaft 131 formed by, for example, a connecting member can be coupled to the optical component 112, the coil can be wound around the periphery of the optical component 112, and the optical component 112 and the rotating shaft 131 can be integrally formed. A mechanism for adjusting the optical path is constructed. In another embodiment, as shown in FIG. 6, a mechanism for adjusting the optical path may include an outer frame 242, a magnetic body 125, a carrier 215, a lens 212 disposed on the carrier 215, and a winding device. a coil 122a on the periphery of the carrier 215, and a control member 133 disposed between the carrier 215 and the outer frame 242, and the control member 133 and the carrier 215 can be integrally formed, or the mechanism 133 and the frame can be controlled. 242 and optical element 112 can be integrally formed.

In another embodiment, a mechanism for adjusting an optical path includes a frame, a lens holder, a coil assembly, and a transmission member. The lens holder is disposed in the frame and includes a lens, and the coil assembly is disposed around the lens holder. The transmission member is connected between the lens holder and the frame, and at least two of the three components of the frame, the lens holder and the transmission member are integrally formed. Further, a shock absorber such as rubber may be filled between the frame and other internal members to provide a shock absorbing effect.

In an embodiment, the optical path adjustment mechanism may have a weight of less than 5 g, for example, 1.6 g, and a volume of less than 40 mm x 40 mm x 10 mm, for example, 21 mm x 21 mm x 3.6 mm. The actuation frequency of the actuation assembly can be 24 Hz - 120 Hz, and the electromagnetic induction component can be, for example, a voice coil motor. The type of the actuating assembly is not limited, and it is only necessary to obtain the effect of driving the link to reciprocate. In another embodiment, as shown in FIG. 7, the actuation assembly can include, for example, a piezoelectric element 150 disposed on the lens 212. The piezoelectric element 150 can be compressed or stretched by applying an electric field to the piezoelectric element 150. Deformation means that the electrical energy can be converted into mechanical energy to make the lens 212 reciprocate to achieve the effect of adjusting the optical path.

FIG. 8 is a schematic diagram of an optical path adjusting mechanism applied to an optical system according to an embodiment of the present invention. Referring to FIG. 8 , the optical device 300 includes an illumination system 310 , a digital micromirror device 320 , a projection lens 330 , and an optical path adjustment mechanism 340 . Therein, the illumination system 310 has a light source 312 adapted to provide a light beam 314, and the digital micromirror device 320 configures a transmission path of the light beam 314. The digital micromirror device 320 is adapted to convert the light beam 314 into a plurality of sub-images 314a. In addition, the projection lens 330 is disposed on the transmission path of the sub-images 314a, and the digital micro-mirror device 320 is located between the illumination system 310 and the projection lens 330. In addition, the optical path adjusting mechanism 340 can be disposed between the digital micromirror device 320 and the projection lens 330, for example, between the digital micromirror device 320 and the internal total reflection 稜鏡 319 or can be totally reflected internally 319 and projected. The lenses 330 are located between the transmission paths of the sub-images 314a. In the optical device 300, the light source 312 may include, for example, a red light emitting diode 312R, a green light emitting diode 312G, and a blue light emitting diode 312B. The color light emitted by each light emitting diode is transmitted through a light combining device 316. After the light is combined, a light beam 314 is formed, and the light beam 314 is sequentially passed through a light integration rod 317, a lens group 318, and a TIR Prism 319. Thereafter, internal total reflection 稜鏡 319 reflects beam 314 to digital micromirror device 320. At this time, the digital micro-mirror device 320 converts the light beam 314 into a plurality of sub-images 314a, and the sub-images 314a sequentially pass through the internal total reflection 稜鏡319 and the optical path adjustment mechanism 340, and the sub-images 314a are transmitted via the projection lens 330. Projected on the screen 350. In the present embodiment, when the sub-images 314a pass through the optical path adjusting mechanism 340, the optical path adjusting mechanism 340 changes the transmission paths of some of the sub-images 314a. That is, the sub-images 314a passing through the optical path adjusting mechanism 340 are projected on the first position (not shown) on the screen 350, and the sub-images 314a passing through the optical path adjusting mechanism 340 in another part of the time. Projected on a second position (not shown) on the screen 350, wherein the first position and the second position differ by a fixed distance in the horizontal direction (X-axis) or/and the vertical direction (Z-axis). In the present embodiment, since the optical path adjusting mechanism 340 can move the imaging position of the sub-images 314a in the horizontal direction or/and the vertical direction by a fixed distance, the horizontal resolution or/and the vertical resolution of the image can be improved. Of course, the above embodiments are merely illustrative. The optical path adjustment mechanism of the embodiment of the present invention can be applied to different optical systems to obtain different effects, and the arrangement position and arrangement manner of the optical path adjustment mechanism in the optical system are not limited at all.

In one embodiment, the material of the lens may be glass, plastic or metal film coated glass, plastic (for example, silver plating or aluminum plating) without limitation, and the lens may be, for example, a reflection sheet or a lens, and the connecting device It can be provided on the lens or the lens holder by self-tapping, bolt, nut, heat sealing, gluing or dispensing, and is not limited.

9A and 9B are schematic perspective and cross-sectional views showing an optical path adjusting mechanism in which a connecting mechanism is mechanically fixed according to an embodiment of the invention. As shown in FIG. 9A and FIG. 9B, the optical component 112 is disposed on the pedestal 114. The optical component 112 is, for example, a lens (lens or mirror) that can deflect light, and the optical component 112 and the pedestal 114 are located in the frame 140. Inside. In this embodiment, the pedestal 114 can be located at the periphery of the optical component 112 and can be used to receive the optical component 112. The pedestal 114 can be a separately formed lens holder or integrally formed with the optical component 112. The pedestal 114 and the optical component 112 can be It can be constructed of the same or different materials, and the susceptor 114 is located outside the active area of the optical element 112 (ie, outside the area where the reflection or transmission is substantially produced). The susceptor 114 is provided with a first region S and a second region T at two opposite positions (for example, a diagonal position), and the first region S and the second region T are respectively provided with a first hole 171a and a second hole 171b. A first nut 170a may be disposed in the hole 171a of the first region S, and a second nut 170b may be disposed in the hole 171b in the second region T. One end of the first connecting mechanism 230a can be locked into the first nut 170a embedded in the base 114 by the screw 180, and the other end of the first connecting mechanism 230a can be connected and fixed to the frame 140 by the screw 180. . One end of the second connecting mechanism 230b can be locked into the second nut 170b embedded in the base 114 by the screw 180, and the other end of the second connecting mechanism 230b can be connected and fixed to the frame 140 by the screw 180. . In another embodiment, only one of the holes 171 is provided with a nut 170 according to actual needs, and it is not necessary to provide a nut 170 for each hole 171.

Figure 14A is a diagram showing the stress residual distribution of a self-tapping tooth to connect an optical element (such as a lens) and a connecting member (such as a spring). The red part of the optical element is a stress residual area, and the reddish color indicates that the residual stress is larger. The blue block represents no residual stress. Figure 14B is a stress distribution diagram of a connecting optical member (such as a lens) and a connecting member (such as a spring) using a screw and a nut embedded in the base. In the figure, there is almost no red block in the optical element, indicating no stress concentration. produce. Therefore, by the screw 180 locking into the design of the nut 170 embedded in the base 114, the connection between the connecting member 230 and the optical element 112 does not form a substantial stress concentration region, and the optical element is connected with the self-tapping. Compared with the way of connecting the parts, the optical element can greatly reduce or eliminate the generation of stress, so it can provide effects such as improved imaging resolution, image quality (eliminating dark areas, softening the edges of the image).

FIG. 10 is a cross-sectional view showing an optical path adjusting mechanism in which a connecting mechanism is screw-locked according to another embodiment of the present invention. As shown in FIG. 10, for example, the optical component of the lens 212 can be disposed on the base 214. The base 214 can be pre-opened with a hole H, and the nut 170 can be inserted and fixed in the hole H, for example, the connecting member of the spring 137. One end can be locked into the nut 170 embedded in the base 214 by the screw 180, and the other end of the spring 137 can be fixed to the frame 240 by the screw 180. By screwing the nut 170 embedded in the base 214 by the screw 180, the connection between the spring 137 and the lens 212 does not form a substantial stress concentration area, which can greatly reduce or eliminate the generation of stress. Furthermore, in another embodiment, the hole H of the base 214 can also be provided with integrally formed threads, so that the screw 180 shown in FIG. 10 can be directly locked and the nut 170 can be omitted, and the reduction or the same can be obtained. Eliminate the effect of stress at the joint.

Each of the above embodiments forms a substantially stress-free concentrated connection region in a mechanically fixed manner. In the mechanical fastening mode, the connecting mechanism may include a columnar fastener, and the cooperation between the columnar fastener and the hole is used without dispensing. It can avoid the phenomenon that the optical element or the substrate itself is subjected to pressure during the fixation to cause stress concentration. The form or structure of the column fastener is not limited at all, and may be, for example, a screw, a bolt, a nut, a key, a rivet, a bolt, a nut or a screw, or the like. However, the present invention is not limited thereto. In another embodiment, a substantially stress-free concentrated region may be formed by clamping and fixing, and a clamping and fixing effect may be achieved by an elastic body or a non-elastic body which is deformed in the hole. For example, the attachment mechanism can include a clamping fastener 142 as shown in FIG. 11A. The clamping fastener 142 can be, for example, a non-elastic body having a positioning post 142a that is positioned in the hole when the clamping fastener 142 is placed. The post 142a can be gathered toward the center and create a force against the wall surface of the hole to provide a gripping effect. In another embodiment, as shown in FIG. 11B, the clamping fastener 144 can be an elastic body. When the clamping fastener 144 is inserted into the hole, the elastic deformation of the clamping fastener 144 can resist the wall surface of the hole. To provide a clamping and fixing effect. Furthermore, in another embodiment, as shown in FIG. 11C, a region of the base 114 may be provided with a recess 172, and a portion 146a (elastomer or non-elastic body) of a clamping fastener 146 may be recessed. The aperture 172 is deformed to clamp the attachment member 230 to the region of the base 114 and to create an area where the optical element 112 is free of substantial stress concentrations.

Figure 12A is a cross-sectional view showing another optical path adjusting mechanism according to another embodiment of the present invention. As shown in FIG. 12A, the frame 140 is provided with a first region S' and a second region T' at a diagonal position. The lens 212 has a lens body 212a and a second body S' and a second lens body 212a respectively. The first positioning portion 212b and the second positioning portion 212c are formed by extending the region T'. The first positioning portion 212b is connected to the first region S' of the frame 140 and the second positioning portion 212c is connected to the second region T' of the frame 140. The positioning portions 212b and 212c can be connected to the frame 140 by screws 180 or the like without being limited. Since the positioning portions 212b and 212c are integrally formed by the lens body 212a and the connection with the frame 140 is away from the lens body 212a, a substantial stress concentration region is not formed, and the optical element can be greatly reduced or the stress can be eliminated.

Figure 12B is a cross-sectional view showing another optical path adjusting mechanism according to another embodiment of the present invention. As shown in FIG. 12B, the optical element 112 can be integrally formed in the mold along with the connecting mechanism 230. In this embodiment, the connecting mechanism 230 includes a first connecting member 230a and a second connecting member 230b that connect the two opposite sides of the frame 140. The optical component 112 can be connected to the connecting members 230a, 230b connected to the two ends. The mold is integrally formed, and the connecting members 230a and 230b are different from the material of the optical element 112, but they are not limited. Since the optical element 112 is formed as a member integrally connected with the connecting members 230a and 230b, the connection between the optical element 112 and the connecting member 230 does not form a substantial stress concentration area, and the optical element can be greatly reduced or stress-relieved. produce.

13A and 13B are schematic diagrams showing an optical path adjusting mechanism according to another embodiment of the present invention. As shown in FIG. 13A, the optical element 112 can be disposed in the frame 140 and provided with at least one heat fusion protrusion 113. In this embodiment, one end of the first connecting mechanism 230a can form a hole H, and the hole H can be nested into the hot-melt protrusion 113a of the optical element 112, and one end of the second connecting mechanism 230b can also pass through the hole H. The other end of the connecting members 230a, 230b is connected to the frame 140, respectively, to the heat-melting projection 113b of the optical member 112. As shown in FIG. 13B, the hot melted protrusions 113a, 113b can be crushed to respectively fix the first connecting member 230a and the second connecting member 230b, that is, the first connecting member 230a and the second connecting. The mechanism 230b can be thermally fused to the optical element 112. In another embodiment, one end of the connecting mechanism 230 can directly attach the upper surface of the optical component 112 without forming the hole H, and the hot melt protrusion 113 can be located on both sides of the attaching end of the connecting mechanism 230, and the hot melted The hot melt protrusion 113 can cover the attachment end of the connecting mechanism 230 by both sides, so that the connecting mechanism 230 and the optical element 112 are thermally welded.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention.

Claims (10)

 An optical path adjusting mechanism includes: a base, a first area and a second area at two opposite positions, wherein the first area and the second area are respectively provided with a first hole and a second hole; An element is disposed on the base; a first connecting member, one end of the first connecting member is connected to the first region of the base via the first hole; and a second connecting member, the first One end of the two connecting mechanism is connected to the second region of the base via the second hole, wherein the optical path adjusting mechanism satisfies one of the following conditions: (1) the first hole is provided with an integrally formed thread; and (2) A nut is disposed in the first hole.    An optical path adjusting mechanism comprises: a frame; an optical component disposed in the frame; a connecting mechanism, one end of the connecting component is connected to the optical component, and the other end is connected to the frame, the connecting component Different from the material of the optical component, the connecting component and the optical component are integrally formed in the mold.    An optical path adjusting mechanism includes: a base, a first area and a second area at two opposite positions, the first area is provided with a first hole; an optical component is disposed on the base; and a a first connecting member, comprising a columnar fastener, wherein the first connecting member is mechanically fixed to the first portion of the base by the cylindrical fastener being inserted into the first hole without using a dispensing The region, and the optical element is produced without substantial stress concentration regions.    The optical path adjusting mechanism according to claim 3, wherein the columnar fastener is a screw, a bolt, a nut, a key, a rivet, a bolt, a nut or a screw.    An optical path adjusting mechanism includes: a base, a first area and a second area at two opposite positions; an optical component disposed on the base; and a first connecting mechanism including a clamping a fastener, the clamping fastener is provided with an elastic body or a non-elastic body, wherein the optical path adjusting mechanism satisfies one of the following conditions: (1) the first region is provided with a first hole, and the clamping is tight Inserting the first hole into the first hole by clamping the first connecting member to the first region of the base and leaving the optical element without substantial stress a concentrated area is generated; and (2) the first area is provided with a first recessed hole, and the clamping fastener portion is disposed in the first recessed hole, by the deformable elastomer or non-elastic body The first connecting member is clamped and fixed to the first region of the base, and the optical element is generated without a substantial stress concentration region.    An optical path adjusting mechanism includes: a frame; an optical component disposed in the frame and having at least one hot melt protrusion; and a connecting mechanism, one end of the connecting mechanism being coupled to the hot melt The optical component is thermally fusion bonded and the other end of the connector is coupled to the frame.    The optical path adjusting mechanism according to any one of claims 1-6, further comprising: a coil surrounding the optical element.    The optical path adjusting mechanism according to any one of claims 1-6, wherein the connecting member is a spring or a leaf spring.    The optical path adjusting mechanism according to any one of claims 1-6, wherein the optical element comprises a reflective sheet or a lens.    A method for manufacturing an optical path adjusting mechanism, comprising: providing a base provided with a hole; providing an optical component at the base; providing a first connecting mechanism, the first connecting mechanism comprising a column fastener; and connecting The columnar fastener is inserted into the hole, wherein the optical path adjusting mechanism satisfies one of the following conditions: (1) the hole is provided with an integrally formed thread; and (2) a nut is disposed in the hole.