CN211653373U - Adjustable optical module and projector - Google Patents

Abstract

The utility model provides an optical module and contain above-mentioned projector with adjustable optical module. The adjustable optical module comprises an optical element, a bearing piece, a frame, a base, a first adjusting component and a second adjusting component. The first adjusting assembly comprises a first driving part, a first adjusting part and a first rotating part. The first adjusting part is used for being adjusted to drive the first boss of the first driving part to move, and the first rotating part is correspondingly driven to rotate so as to push the bearing part to rotate around the first axis relative to the base. The second adjusting assembly comprises a second driving piece, a second adjusting piece and a second rotating piece. The second adjusting part is used for being adjusted to drive the second boss of the second driving part to move, and the second rotating part is correspondingly driven to rotate so as to further push the frame to rotate around the second axis relative to the base. By adjusting the first adjusting piece and the second adjusting piece of the adjustable optical module, the angle of the optical element can be adjusted around two axial directions, so that a good optical effect is achieved.

Description

Adjustable Optical Modules and Projectors

technical field

The utility model relates to an optical module and a projector, in particular, the utility model relates to an adjustable optical module and a projector.

Background technique

In order to produce a specific optical effect, the designer will usually configure the optical module to a specific location within the device. However, due to factors such as mechanism tolerance, if the position of the optical module cannot be adjusted, the optical effect may be affected, resulting in optical variation.

This "Background Art" paragraph is only used to illustrate the understanding of the present invention, therefore, the content disclosed in the "Background Art" paragraph may contain some prior art that is not known to those skilled in the art. The content disclosed in the "Background Art" paragraph does not represent the content or the problem to be solved by one or more embodiments of the present invention, and has been known or recognized by those skilled in the art before the present invention is filed.

Utility model content

The utility model is directed to an adjustable optical module, which can adjust the angles around two axes.

The utility model is directed to a projector, which comprises the above-mentioned adjustable optical module.

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

In order to achieve one or part or all of the above objectives or other objectives, the adjustable optical module according to the embodiment of the present invention includes an optical element, a carrier, a frame, a base, a first adjustment component and a second adjustment component. The carrier carries the optical element. The carrier is located in the frame and is pivotally connected to the frame along the first axis. The frame is pivotally connected to the base along the second axis. The first adjusting component includes a first driving member, a first adjusting member and a first rotating member. The first driving member is movably arranged on the base and includes a first boss. The first adjusting member is movably abutted on the base to drive the first driving member to move relative to the base. The first rotating member is used for pivoting relative to the base, one end of the first rotating member abuts on the first boss, and the other end abuts on the bearing member, wherein the first adjusting member is used to be adjusted to drive the first driving member The first boss of the component moves, and the first rotating component is correspondingly driven to rotate, thereby pushing the bearing component, so that the bearing component rotates around the first axis relative to the base. The second adjusting component includes a second driving member, a second adjusting member and a second rotating member. The second driving member is movably arranged on the base and includes a second boss. The second adjusting member is movably abutted on the base to drive the second driving member to move relative to the base. The second rotating member is used for pivoting relative to the base, one end of the second rotating member is abutted against the second boss, and the other end is abutted on the frame, wherein the second adjusting member is used to be adjusted to drive the second driving member The second boss moves, and the second rotating member is correspondingly driven to rotate, thereby pushing the frame, so that the frame rotates around the second axis relative to the base.

A projector according to an embodiment of the present invention includes a light source module, a light valve, a projection lens, and the above-mentioned adjustable optical module. The light source module is used for emitting illumination beams. A light valve is used to convert the illumination beam into an image beam. The projection lens is used to project the image beam. The adjustable optical module is arranged on the path of the illumination beam or on the path of the image beam.

To sum up, the first adjusting member of the first adjusting component of the adjustable optical module of the present invention is used to be adjusted to drive the first boss of the first driving member to move, and the first rotating member is correspondingly driven to rotate , and then push the carrier, so that the carrier carrying the optical element rotates about the first axis relative to the base. In addition, the second adjustment member of the second adjustment component of the adjustable optical module of the present invention is used to be adjusted to drive the second boss of the second driving member to move, and the second rotating member is correspondingly driven to rotate, thereby pushing the frame to rotate the frame about the second axis relative to the base. Therefore, in the adjustable optical module of the present invention, by adjusting the first adjusting member and the second adjusting member, the angle of the optical element can be adjusted around two axes, so as to achieve a good optical effect.

Description of drawings

The accompanying drawings are included to provide a further understanding of the present invention, and are incorporated into and constitute a part of this specification. The drawings illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention.

1A is a schematic diagram of a projector according to an embodiment of the present invention;

1B is a schematic diagram of a projector according to another embodiment of the present invention;

2 to 4 are schematic diagrams of different viewing angles of an adjustable optical module according to an embodiment of the present invention;

Fig. 5 is the exploded schematic diagram of the adjustable optical module of Fig. 2;

Fig. 6 is the schematic diagram of another angle of view of Fig. 5;

7 to 9 are schematic cross-sectional views of the adjustable optical module of FIG. 2 .

List of reference signs

A1: the first axis;

A2: the second axis;

d1, d2: inner diameter;

E1, E2, E3, E4: end;

L1: Lighting beam;

L2: image beam;

10, 10a: projector;

12: light source module;

14: light valve;

16: Projection lens;

100: Adjustable optical module;

110: optical components;

120: carrier;

130: frame;

140: base;

141: the first abutting part;

142: first perforation;

143: the second abutting part;

144: second perforation;

145: the first alignment recognition part;

146: the second alignment recognition part;

147: the first pilot hole;

148: second pilot hole;

150: the first pivot;

154, 155: the first pivot hole;

160: second pivot;

164, 165: the second pivot hole;

170: the first adjustment component;

171: the first driving element;

172: the first boss;

173: the first limit part;

174: the first adjustment piece;

1741: Nut body;

1742: Nylon backing ring;

175: The first rotating part; .

176: a first elastic member;

177: a third elastic member;

178: first shell seat;

179: the first torsion spring;

180: the second adjustment component;

181: the second driving element;

182: the second boss;

183: the second limit part;

184: the second adjustment piece;

185: the second rotating part;

186: a second elastic member;

187: the fourth elastic member;

188: the second shell seat;

189: second torsion spring;

190: the first resistance reducing element;

192: the second resistance reducing element.

Detailed ways

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or rear, etc., are only referring to the directions of the drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention.

FIG. 1A is a schematic diagram of a projector according to an embodiment of the present invention. Referring to FIG. 1A , the projector 10 of this embodiment includes a light source module 12 , a light valve 14 , a projection lens 16 and an adjustable optical module 100 . The light source module 12 is used for emitting the illumination light beam L1. In this embodiment, the light source module 12 includes, for example, a laser light source, but in other embodiments, the light source module 12 may also include light emitting diodes or other light sources. The light emitted by the light source module 12 is, for example, blue light, but may also be light beams of other colors, which are not limited herein by the present disclosure. For example, the light source module 12 may include a plurality of laser elements (not shown), for example, these laser elements are arranged in an array, and the laser elements are, for example, laser diodes (LDs). In other embodiments, there may also be multiple light source modules 12 . In other embodiments, the light source module 12 may be a solid-state illumination source such as a light emitting diode. The light source module 12 may also include other optical elements, such as a phosphor wheel, etc., which will not be described in detail here.

In this embodiment, the adjustable optical module 100 is disposed on the path of the illumination light beam L1. That is, the adjustable optical module 100 is disposed between the light source module 12 and the light valve 14 to adjust the light path of the illumination beam L1, but the position of the adjustable optical module 100 is not limited to this.

In this embodiment, the light valve 14 is used to convert the illumination light beam L1 into the image light beam L2. In this embodiment, the light valve 14 is, for example, a reflective light modulator such as a digital micro-mirror device (DMD) or a liquid crystal on silicon panel (LCoS panel). In some embodiments, the light valve 14 can be, for example, a transmissive liquid crystal panel (Liquid Crystal Display Panel), an electro-optical modulator (Electro-Optical Modulator), a magneto-optical modulator (Maganeto-Optic modulator), acousto-optic modulator Transmissive light modulators such as Acousto-OpticModulator (AOM). However, the present disclosure does not limit the type and type of the light valve 14 .

In this embodiment, the projection lens 16 is used to project the image beam L2. The projection lens 16 is located on the transmission path of the image beam L2 and can project the image beam L2 out of the projector 10 to display images on a screen, a wall, or other projection targets. In this embodiment, the projection lens 16 includes, for example, a combination of one or more non-planar optical lenses with dioptric power, such as a bi-concave lens, a bi-convex lens, a meniscus lens, a convex-concave lens, a plano-convex lens, and a plano-concave lens and other non-planar lenses. various combinations. In one embodiment, the projection lens 16 may also include a flat optical lens, which projects the image light beam L2 from the light valve 14 out of the projector 10 in a reflective or penetrating manner. The present disclosure does not limit the type and type of the projection lens 16 .

FIG. 1B is a schematic diagram of a projector according to another embodiment of the present invention. Please refer to FIG. 1B . The main difference between the projector 10 a of FIG. 1B and the projector 10 of FIG. 1A is the position of the adjustable optical module 100 . In this embodiment, the adjustable optical module 100 is disposed on the path of the image beam L2. That is to say, the adjustable optical module 100 is disposed between the light valve 14 and the projection lens 16 for adjusting the optical path of the image beam L2.

In the above-mentioned embodiment, the adjustable optical module 100 can be designed to adjust the angle around two axes. Therefore, the adjustable optical module 100 can provide good optical effects. The tunable optical module 100 will be described in detail below.

2 to 4 are schematic diagrams of different viewing angles of an adjustable optical module according to an embodiment of the present invention. FIG. 5 is an exploded schematic view of the adjustable optical module of FIG. 2 . FIG. 6 is a schematic diagram of another viewing angle of FIG. 5 . Referring to FIGS. 2 to 6 , the adjustable optical module 100 includes an optical element 110 , a carrier 120 , a frame 130 , a base 140 , a first adjustment component 170 ( FIG. 5 ) and a second adjustment component 180 ( FIG. 5 ). The optical element 110 is, for example, a lens, a dichroic mirror or a reflecting mirror, but the type of the optical element 110 is not limited thereto.

In some embodiments, carrier 120 carries optical element 110 . The carrier 120 is located in the frame 130 and is pivotally connected to the frame 130 along the first axis A1. As shown in FIG. 5 , one of the carrier 120 and the frame 130 includes two first pivot shafts 150 protruding from both sides and extending along the first axis A1 , and the other includes two first pivot holes 154 and 155 . When the carrier 120 and the frame 130 are assembled together, the two first pivot shafts 150 can be respectively located in the two first pivot holes 154 and 155 . In the embodiment shown in FIG. 5 , the carrier 120 includes two first pivot shafts 150 protruding from both sides and extending along the first axis A1 , and the frame 130 includes two first pivot holes 154 and 155 . However, the present invention is not limited thereto. In other embodiments, the frame 130 may include two first pivot shafts 150 protruding inwardly toward the carrier 120 from both sides and extending along the first axis A1, and the carrier 120 may Including two first pivot holes 154 and 155 .

In this embodiment, one of the two first pivot holes 154 and 155 is an annular hole with closed edges, and the other is a horseshoe-shaped hole with non-closed edges, such as a U-shaped hole. More specifically, in FIG. 5 , the first pivot hole 154 on the left side of the frame 130 is an annular hole with a closed edge, and the first pivot hole 155 on the right side of the frame 130 is a horseshoe-shaped hole with an unclosed edge. The new type is not limited to this.

In the above embodiment, the shape design of the first pivot holes 154 and 155 allows the assembler to install the first pivot on the left side of the carrier 120 shown in FIG. 5 when assembling the carrier 120 to the frame 130 first. 150 is inserted into the first pivot hole 154 (annular hole) on the left side of the frame 130, and then the first pivot shaft 150 on the right side of the carrier 120 is inserted into the first pivot hole 155 (horseshoe-shaped hole) on the right side of the frame 130, thereby Increase the ease of assembly. In addition, the shapes of the first pivot holes 154 and 155 can prevent the pivot shaft from being deformed due to assembly.

In addition, in this embodiment, the frame 130 is pivotally connected to the base 140 along the second axis A2. One of the frame 130 and the base 140 includes two second pivot shafts 160 protruding from both sides and extending along the second axis A2 , and the other includes two second pivot holes 164 and 165 . When the frame 130 and the base 140 are assembled together, the two second pivot shafts 160 can be respectively located in the two second pivot holes 164 and 165 . In the embodiment shown in FIG. 5 , the frame 130 includes two second pivot shafts 160 protruding from both sides and extending along the second axis A2 , and the base 140 includes two second pivot holes 164 and 165 . However, the present invention is not limited thereto. In other embodiments, the base 140 may include two second pivots 160 protruding inwardly toward the frame 130 from both sides and extending along the second axis A2, and the frame 130 may include Two second pivot holes 164 and 165 . Similarly, one of the two second pivot holes 164 and 165 is a ring-shaped hole with closed edges, and the other is a horseshoe-shaped hole with non-closed edges, so as to facilitate assembly and prevent the second pivot shaft 160 from being assembled during the assembly process. deformed. In this embodiment, the first axis A1 is perpendicular to the second axis A2.

In this embodiment, the carrier 120 carrying the optical element 110 is used to rotate relative to the frame 130 around the first axis A1, and is used to rotate relative to the base 140 around the second axis A2, so as to change the relationship between the first axis A1 and the second axis A2. The angle on the two axis A2. The first adjustment assembly 170 for rotating the carrier 120 relative to the frame 130 about the first axis A1 and the second adjusting assembly 170 for rotating the carrier 120 together with the frame 130 relative to the base 140 about the second axis A2 will be further described below. Two adjustment components 180 .

7 to 9 are schematic cross-sectional views of the adjustable optical module of FIG. 2 . Please refer to FIGS. 4 to 6 and FIGS. 8 to 9 first. In this embodiment, the first adjusting component 170 ( FIG. 5 ) includes a first driving member 171 , a first adjusting member 174 and a first rotating member 175 . The first driving member 171 is movably disposed on the base 140 and includes a first boss 172 . The base 140 includes a first guide hole 147 ( FIG. 6 ), the first boss 172 extends into the first guide hole 147 , and the outer contour of the first boss 172 corresponds to the inner contour of the first guide hole 147 . In this embodiment, the shape of the first guide hole 147 is a circular shape with a cut edge ( FIG. 4 ). More specifically, the shape of the first guide hole 147 is a shape formed by a combination of an arc and a chord. Such a design can prevent the first boss 172 of the first driving member 171 from rotating in the first guide hole 147 of the base 140 , and can make the first driving member 171 move up and down relative to the base 140 . Of course, in other embodiments, the shape of the first guide hole 147 can also be a polygon.

In this embodiment, the first adjusting member 174 is movably abutted against the base 140 to drive the first driving member 171 to move relative to the base 140 in a direction parallel to the second axis A2 . In this embodiment, the first driving member 171 is a screw rod, the first adjusting member 174 is a nut, the first driving member 171 is penetrated in the base 140 , the first adjusting member 174 is in contact with the base 140 , and the first adjusting member 174 is a nut. An adjusting member 174 is screwed to the first driving member 171 . Therefore, when the user rotates the first adjusting member 174, the first adjusting member 174 is rotated to drive the first driving member 171 to move up and down in a direction parallel to the second axis A2. Of course, the types of the first driving member 171 and the first adjusting member 174 are not limited to this.

In this embodiment, the base 140 further includes a first abutting portion 141 , the first abutting portion 141 includes a first through hole 142 ( FIG. 6 ), and the first driving member 171 is passed through the first through hole 142 . In the base 140 , the first driving member 171 includes a first limiting portion 173 . When the first driving member 171 is assembled to the base 140 , the first limiting portion 173 of the first driving member 171 is positioned on the base 140 . The first abutting portion 141 . As shown in FIGS. 3-6 , the first adjustment assembly 170 further includes a first elastic member 176 , and the first elastic member 176 is disposed on the first abutting portion 141 of the base 140 and the first limit of the first driving member 171 . between sections 173. In the present embodiment, the first elastic member 176 can be used to stabilize the first driving member 171 , thereby preventing the first driving member 171 from moving up and down in the first through hole 142 of the base 140 from undesired shaking.

It can be seen from FIGS. 3 , 4 , 6 , and 8 that, in some embodiments, the base 140 includes a first alignment recognition portion 145 , which is aligned with the first limiting portion 173 of the first driving member 171 and used for To assist in positioning the first limiting portion 173 . For example, the operator can first adjust the first driving member 171 so that the first limiting portion 173 is aligned with the first alignment recognition portion 145, and then perform other adjustments.

In this embodiment, the first rotating member 175 is used for pivoting relative to the base 140 . More specifically, as shown in FIG. 5 , the first adjustment assembly 170 further includes a first housing 178 and a first torsion spring 179 . The first housing 178 can be fixed on the base 140 , and the first rotating member 175 is pivotally connected to the base 140 . The first housing 178 and the first torsion spring 179 are connected between the first housing 178 and the first rotating member 175 . The first rotating member 175 includes a rotating protruding shaft, and the first housing 178 includes a corresponding rotating hole. The rotating protruding shaft of the first rotating member 175 rotates in the rotating hole of the first housing A rotating member 175 rotates relative to the first housing 178 .

8 , one end E1 (lower left end) of the first rotating member 175 abuts against the first boss 172 of the first driving member 171 , and the other end E1 (upper right end) abuts against the carrier 120 . When the first adjusting member 174 is adjusted (rotated), the first boss 172 of the first driving member 171 can be driven to move up and down in a direction parallel to the second axis A2, and the end E1 of the first rotating member 175 is in contact with the The first boss 172 ascends or descends together with the first boss 172 . Since the first rotating member 175 is pivotally connected to the first housing 178, when the end E1 of the first rotating member 175 rises or falls, the other end E2 correspondingly drops or rises, so that the first rotating member 175 can rotate around the first rotating member 175. The rotating protruding shaft of the member 175 rotates relative to the first housing seat 178 , thereby pushing the bearing member 120 to rotate relative to the base 140 around the first axis A1 .

As shown in FIG. 5 , the first adjustment assembly 170 further includes a third elastic member 177 disposed between the carrier member 120 and the base 140 . For example, one end of the third elastic member 177 may have a hook portion, and the corresponding base 140 has a hook and loop, and the third elastic member 177 and the base 140 are connected together by the hook portion and the hook and loop. For another example, the other end of the third elastic member 177 may abut against the contact carrier 120 . In this embodiment, the third elastic member 177 is a compression spring. As can be seen from FIG. 6 , the third elastic member 177 and the first rotating member 175 are located on the upper and lower sides of the first pivot shaft 150 , respectively. When the first driving member 171 as shown in FIG. 8 is upward and the first rotating member 175 is rotated clockwise to push the bearing member 120 , the bearing member 120 will rotate counterclockwise. At this time, the third elastic member 177 will be compressed to accumulate elastic potential energy. On the contrary, when the first driving member 171 moves downward, the third elastic member 177 releases the accumulated elastic potential energy, so that the bearing member 120 rotates clockwise. In other words, the carrier 120 is rotated relative to the base 140 around the first axis A1 by the rotation of the first rotating member 175 and the pushing of the third elastic member 177 .

It is worth mentioning that, in this embodiment, the adjustable optical module 100 may also optionally include a first resistance reducing member 190 . The first resistance reducing member 190 is fixed on the side of the bearing member 120 facing the base 140 , and the surface roughness of the first resistance reducing member 190 is smaller than that of the bearing member 120 . The end E2 of the first rotating member 175 pushes the bearing member 120 by abutting against the first resistance reducing member 190 , so as to reduce the frictional force and make the bearing member 12 rotate smoothly.

In some embodiments, the second adjusting component 180 includes a second driving member 181 , a second adjusting member 184 and a second rotating member 185 . The second driving member 181 is movably disposed on the base 140 and includes a second boss 182 . In this embodiment, the base 140 includes a second guide hole 148 ( FIG. 6 ), the second boss 182 extends into the second guide hole 148 , and the outer contour of the second boss 182 corresponds to the second guide hole 148 inner contour. In this embodiment, the shape of the second guide hole 148 is a circular shape with a cut edge ( FIG. 4 ). Further, the shape of the second guide hole 148 may be a combination of arc and chord or a polygon. Such a design enables the second boss 182 of the second driving member 181 to not rotate in the second guide hole 148 of the base 140 , and enables the second driving member 181 to move up and down relative to the base 140 .

In this embodiment, the second adjusting member 184 is movably abutted against the base 140 to drive the second driving member 181 to move relative to the base 140 in a direction parallel to the second axis A2. In this embodiment, the second driving member 181 is a screw rod, the second adjusting member 184 is a nut, the second driving member 181 is penetrated in the base 140 , the second adjusting member 184 is in contact with the base 140 , and the second adjusting member 184 is a nut. The two adjusting members 184 are screwed with the second driving member 181 . Therefore, when the user rotates the second adjusting member 184, the second adjusting member 184 is rotated to drive the second driving member 181 to move up and down in a direction parallel to the second axis A2. Of course, the types of the second driving member 181 and the second adjusting member 184 are not limited to this.

In the present embodiment, the base 140 further includes a second abutting portion 143 , the second abutting portion 143 includes a second through hole 144 ( FIG. 6 ), and the second driving member 181 is passed through the second through hole 144 . In the base 140 , the second driving member 181 includes a second limiting portion 183 . When the second driving member 181 is assembled to the base 140 , the second limiting portion 1833 of the second driving member 181 is positioned at the base 140 . The second contact portion 143 . As shown in FIGS. 3-6 , the second adjustment assembly 180 further includes a second elastic member 186 , and the second elastic member 186 is disposed on the second abutting portion 143 of the base 140 and the second limit of the second driving member 181 . between sections 183. In this embodiment, the second elastic member 186 can be used to stabilize the second driving member 181 , thereby preventing undesired shaking when the second driving member 181 moves up and down in the second through hole 144 of the base 140 .

It can be seen from FIGS. 3 , 4 , 6 , and 7 , in some embodiments, the base 140 includes a second alignment recognition portion 146 , which is aligned with the second limiting portion 183 of the second driving member 181 and uses To assist in positioning the second limiting portion 183 . For example, the operator can first adjust the second driving member 181 so that the second limiting portion 183 is aligned with the second alignment recognition portion 146, and then adjust the second positioning portion 183.

In this embodiment, the second rotating member 185 is used for pivoting relative to the base 140 . In more detail, as shown in FIG. 5 , the second adjustment assembly 180 further includes a second housing 188 and a second torsion spring 189 , the second housing 188 is fixed on the base 140 , and the second rotating member 185 is pivotally connected to the first torsion spring 189 . Two housing bases 188 , and the second torsion spring 189 is connected between the second housing base 188 and the second rotating member 185 . The second rotating member 185 includes a rotating protruding shaft, and the second housing 188 includes a corresponding rotating hole. The rotating protruding shaft of the second rotating member 185 rotates in the rotating hole of the second housing 188, so that the first The two rotating members 185 rotate relative to the second housing base 188 .

As shown in FIG. 7 , the end E3 (lower left end) of the second rotating member 185 abuts against the second boss 182 of the second driving member 181 , and the other end E4 (upper right end) abuts on the frame 130 . When the second adjusting member 184 is adjusted (rotated), the second boss 182 of the second driving member 181 can be driven to move up and down in a direction parallel to the second axis A2. The end E3 of the second rotating member 185 is in contact with the The second boss 182 ascends or descends together with the second boss 182 . Since the second rotating member 185 is pivotally connected to the second housing 188, when the end E3 of the second rotating member 185 rises or falls, the other end E4 correspondingly drops or rises, so that the second rotating member 185 can rotate around the second rotating member 185. The rotating protruding shaft of the member 185 rotates relative to the second housing 188 , thereby pushing the frame 130 to rotate relative to the base 140 around the second axis A2 .

In this embodiment, as shown in FIG. 5 , the second adjustment assembly 180 further includes a fourth elastic member 187 disposed between the frame 130 and the base 140 . For example, one end of the fourth elastic member 187 may have a hook portion, and the corresponding base 140 has a hook and loop, and the fourth elastic member 187 and the base 140 are connected together by the hook portion and the hook and loop. For another example, the other end of the fourth elastic member 187 may abut against the contact frame 130 . In this embodiment, the fourth elastic member 187 is a compression spring. It can be seen from FIG. 6 that both the fourth elastic member 187 and the second rotating member 185 are located on the right side of the second pivot shaft 160 of the frame 130 . When the second driving member 181 as shown in FIG. 7 is upward and the second rotating member 185 rotates clockwise to push the frame 130, the frame 130 rotates around the second axis A2 (the part of the frame 130 pushed by the second rotating member 185 moves toward the away from the second housing seat 188). At this time, the fourth elastic member 187 will be elongated to accumulate elastic potential energy. On the contrary, when the second driving member 181 moves downward, the fourth elastic member 187 releases the accumulated elastic potential energy, so that the frame 130 rotates in the opposite direction around the second axis A2 (the frame 130 is pushed by the second rotating member 185 ). part rotates toward the direction close to the second housing seat 188). In other words, the frame 130 is rotated relative to the base 140 around the second axis A2 by the rotation of the second rotating member 185 and the pushing of the fourth elastic member 187 .

In this embodiment, the adjustable optical module 100 may also optionally include a second resistance reducing member 192 . The second resistance reducing member 192 is fixed on the side of the frame 130 facing the base 140 , the surface roughness of the second resistance reducing member 192 is smaller than that of the frame 130 , and the end E4 of the second rotating member 185 abuts against the second resistance reducing member 192 The resistance reducing member 192 pushes the frame 130 to reduce frictional force and make the frame 130 rotate smoothly.

It is worth mentioning that, as shown in FIG. 9 , in this embodiment, either one of the first adjusting member 174 and the second adjusting member 184 may be an embedded nylon nut. Taking the first adjusting member 174 as an example, the embedded nylon nut includes a nut body 1741 and a nylon backing ring 1742 embedded in the nut body 1741 . The inner diameter d1 of the nylon backing ring 1742 is smaller than the inner diameter of the inner thread of the nut body 1741 d2. Since the inner side of the nut body 1741 has the nylon backing ring 1742, when the first driving member 171 is engaged with the first adjusting member 174, the threads of the first driving member 171 will cut/bite into the nylon backing ring 1742 to cause resistance. And can achieve the effect of preventing the nut from loosening. Therefore, the adjustable optical module 100 does not need to be glued and fixed at the gap between the first adjusting member 174 and the first driving member 171 after being adjusted.

To sum up, the first adjusting member of the first adjusting component of the adjustable optical module of the present invention is used to be adjusted to drive the first boss of the first driving member to move, and the first rotating member is correspondingly driven to rotate , and then push the carrier, so that the carrier carrying the optical element rotates about the first axis relative to the base. In addition, the second adjustment member of the second adjustment component of the adjustable optical module of the present invention is used to be adjusted to drive the second boss of the second driving member to move, and the second rotating member is correspondingly driven to rotate, thereby pushing the frame to rotate the frame about the second axis relative to the base. Therefore, in the adjustable optical module of the present invention, by adjusting the first adjusting member and the second adjusting member, the angle of the optical element can be adjusted around two axes, so as to achieve a good optical effect.

However, the above are only the preferred embodiments of the present invention, and cannot limit the scope of the present invention. That is, any simple equivalent changes and modifications made in accordance with the claims of the present invention and the contents of the description are all It still falls within the scope of the utility model patent. In addition, any embodiment or claim of the present invention is not required to achieve all of the disclosed objects or advantages or features of the present invention. In addition, the abstract of the description and the name of the utility model are only used to assist the patent search, and are not used to limit the scope of rights of the present utility model. In addition, terms such as "first" and "second" mentioned in this specification or the claims are only used to name the names of elements or to distinguish different embodiments or ranges, rather than to limit the upper or lower limit of the number of components .

Claims (26)

1. An adjustable optical module comprises an optical element, a bearing member, a frame, a base, a first adjusting component and a second adjusting component, wherein

The bearing part bears the optical element;

the bearing piece is positioned in the frame and is pivoted to the frame along a first axis;

the frame is pivoted to the base along a second axis;

the first adjusting assembly comprises a first driving member, a first adjusting member and a first rotating member, wherein the first adjusting member comprises a first driving member, a first adjusting member and a first rotating member

The first driver is movably arranged on the base and comprises a first boss;

the first adjusting piece is movably abutted against the base so as to drive the first driving piece to move relative to the base;

the first rotating member is used for pivoting relative to the base, one end of the first rotating member abuts against the first boss, and the other end of the first rotating member abuts against the bearing member, wherein the first adjusting member is used for being adjusted to drive the first boss of the first driving member to move, the first rotating member is correspondingly driven to rotate, and then the bearing member is pushed, so that the bearing member rotates relative to the base around the first axis;

the second adjusting component comprises a second driving component, a second adjusting component and a second rotating component, wherein the second driving component is connected with the second adjusting component through a first connecting component

The second driving piece is movably arranged on the base and comprises a second boss;

the second adjusting piece is movably abutted against the base so as to drive the second driving piece to move relative to the base;

the second rotating member is configured to pivot relative to the base, one end of the second rotating member abuts against the second boss, and the other end of the second rotating member abuts against the frame, wherein the second adjusting member is configured to be adjusted to drive the second boss of the second driving member to move, and the second rotating member is correspondingly driven to rotate, so as to push the frame, so that the frame rotates around the second axis relative to the base.

2. The adjustable optical module according to claim 1,

the first driving part and the second driving part are respectively two screws, and the first adjusting part and the second adjusting part are respectively two nuts, wherein

The first driving part and the second driving part are arranged in the base in a penetrating way, the first adjusting part and the second adjusting part are abutted against the base, and the first driving part and the second driving part are arranged in the base in a penetrating way, and the first adjusting part and the second adjusting part are abutted against the base

The first adjusting piece and the second adjusting piece are respectively in threaded connection with the first driving piece and the second driving piece.

3. The tunable optical module according to claim 2, wherein the two nuts are two embedded nylon nuts, respectively, each of the embedded nylon nuts includes a nut body and a nylon gasket embedded in the nut body, and an inner diameter of the nylon gasket is smaller than an inner diameter of the internal thread of the nut body.

4. The adjustable optical module according to claim 1, wherein the base comprises a first abutting portion and a second abutting portion, the first abutting portion comprises a first through hole, the second abutting portion comprises a second through hole, the first driving member and the second driving member respectively pass through the first through hole and the second through hole, the first driving member comprises a first position-limiting portion located beside the first abutting portion, the second driving member comprises a second position-limiting portion located beside the second abutting portion, the first adjusting assembly further comprises a first elastic member, the first elastic member is disposed between the first abutting portion and the first position-limiting portion, the second adjusting assembly further comprises a second elastic member, and the second elastic member is disposed between the second abutting portion and the second position-limiting portion.

5. The tunable optical module according to claim 4, wherein the base includes a first alignment identification portion corresponding to the first position-limiting portion and a second alignment identification portion corresponding to the second position-limiting portion.

6. The tunable optical module of claim 1, wherein the first tuning assembly further comprises a third elastic member disposed between the carrier and the base, and the second tuning assembly further comprises a fourth elastic member disposed between the frame and the base.

7. The adjustable optical module according to claim 6, wherein the third elastic member is a compression spring,

wherein the bearing member comprises a first pivot extending along the first axis, and the frame comprises a first pivot hole through which the first pivot is inserted,

the bearing piece rotates around the first axis relative to the base by the rotation of the first rotating piece and the pushing of the third elastic piece.

8. The adjustable optical module according to claim 6, wherein the fourth elastic member is a compression spring,

wherein the frame comprises a second pivot shaft extending along the second axis, and the base comprises a second pivot hole through which the second pivot shaft is inserted,

the frame rotates around the second axis relative to the base by the rotation of the second rotating piece and the pushing of the fourth elastic piece.

9. The tunable optical module of claim 1, wherein the base comprises a first via and a second via, the first boss and the second boss respectively extend into the first via and the second via, and outer contours of the first boss and the second boss correspond to inner contours of the first via and the second via.

10. The adjustable optical module of claim 9, wherein the shape of either of the first via and the second via is a trimmed circle.

11. The tunable optical module of claim 9, wherein the shape of any one of the first via and the second via is a combination of a circular arc and a chord or is a polygon.

12. The tunable optical module of claim 1, further comprising a first resistance-reducing member and a second resistance-reducing member, wherein

The first resistance reducing piece is fixed on one surface, facing the base, of the bearing piece, the surface roughness of the first resistance reducing piece is smaller than that of the bearing piece, and the other end of the first rotating piece pushes the bearing piece by abutting against the first resistance reducing piece;

the second resistance reducing piece is fixed on one surface of the frame facing the base, the surface roughness of the second resistance reducing piece is smaller than that of the frame, and the other end of the second rotating piece pushes the frame by abutting against the second resistance reducing piece.

13. The adjustable optical module according to claim 1, wherein the first adjusting assembly further comprises a first housing base and a first torsion spring, the first housing base is fixed to the base, the first rotating member is pivotally connected to the first housing base, the first torsion spring is connected between the first housing base and the first rotating member, the second adjusting assembly further comprises a second housing base and a second torsion spring, the second housing base is fixed to the base, the second rotating member is pivotally connected to the second housing base, and the second torsion spring is connected between the second housing base and the second rotating member.

14. A projector comprises a light source module, a light valve, a projection lens and an adjustable optical module

The light source module is used for emitting an illumination light beam;

the light valve is used for converting the illumination light beam into an image light beam;

the projection lens is used for projecting the image light beam;

the adjustable optical module is arranged on the path of the illumination light beam or the path of the image light beam, and comprises an optical element, a bearing piece, a frame, a base, a first adjusting component and a second adjusting component, wherein the optical element is arranged on the bearing piece, the frame is arranged on the base, the first adjusting component is arranged on the base, the second adjusting component is arranged on the frame, the second adjusting component is arranged on the

The bearing part bears the optical element;

the bearing piece is positioned in the frame and is pivoted to the frame along a first axis;

the frame is pivoted to the base along a second axis;

the first adjusting assembly comprises a first driving member, a first adjusting member and a first rotating member, wherein the first adjusting member comprises a first driving member, a first adjusting member and a first rotating member

The first driver is movably arranged on the base and comprises a first boss;

the first adjusting piece is movably abutted against the base so as to drive the first driving piece to move relative to the base; and

the first rotating member is used for pivoting relative to the base, one end of the first rotating member abuts against the first boss, and the other end of the first rotating member abuts against the bearing member, wherein the first adjusting member is used for being adjusted to drive the first boss of the first driving member to move, the first rotating member is correspondingly driven to rotate, and then the bearing member is pushed, so that the bearing member rotates relative to the base around the first axis;

the second adjusting component comprises a second driving component, a second adjusting component and a second rotating component, wherein the second driving component is connected with the second adjusting component through a first connecting component

The second driving piece is movably arranged on the base and comprises a second boss;

the second adjusting piece is movably abutted against the base so as to drive the second driving piece to move relative to the base;

the second rotating member is configured to pivot relative to the base, one end of the second rotating member abuts against the second boss, and the other end of the second rotating member abuts against the frame, wherein the second adjusting member is configured to be adjusted to drive the second boss of the second driving member to move, and the second rotating member is correspondingly driven to rotate, so as to push the frame, so that the frame rotates around the second axis relative to the base.

15. The projector as defined in claim 14,

the first driving part and the second driving part are respectively two screws, and the first adjusting part and the second adjusting part are respectively two nuts, wherein

The first driving part and the second driving part are arranged in the base in a penetrating way, the first adjusting part and the second adjusting part are abutted against the base, and the first driving part and the second driving part are arranged in the base in a penetrating way, and the first adjusting part and the second adjusting part are abutted against the base

The first adjusting piece and the second adjusting piece are respectively in threaded connection with the first driving piece and the second driving piece.

16. The projector as claimed in claim 15, wherein the two nuts are two embedded nylon nuts, respectively, each of the embedded nylon nuts includes a nut body and a nylon backing ring embedded in the nut body, and the inner diameter of the nylon backing ring is smaller than the inner diameter of the internal thread of the nut body.

17. The projector as claimed in claim 14, wherein the base includes a first abutting portion and a second abutting portion, the first abutting portion includes a first through hole, the second abutting portion includes a second through hole, the first driving member and the second driving member respectively pass through the first through hole and the second through hole, the first driving member includes a first position-limiting portion located beside the first abutting portion, the second driving member includes a second position-limiting portion located beside the second abutting portion, the first adjusting assembly further includes a first elastic member, the first elastic member is disposed between the first abutting portion and the first position-limiting portion, the second adjusting assembly further includes a second elastic member, and the second elastic member is disposed between the second abutting portion and the second position-limiting portion.

18. The projector as claimed in claim 17, wherein the base includes a first alignment identification portion corresponding to the first position-limiting portion and a second alignment identification portion corresponding to the second position-limiting portion.

19. The projector as claimed in claim 14, wherein the first adjustment assembly further comprises a third elastic member disposed between the carrier and the base, and the second adjustment assembly further comprises a fourth elastic member disposed between the frame and the base.

20. The projector as claimed in claim 19, wherein the third elastic member is a compression spring,

wherein the bearing member comprises a first pivot extending along the first axis, and the frame comprises a first pivot hole through which the first pivot is inserted,

the bearing piece rotates around the first axis relative to the base by the rotation of the first rotating piece and the pushing of the third elastic piece.

21. The projector as claimed in claim 19, wherein the fourth elastic member is a compression spring,

wherein the frame comprises a second pivot shaft extending along the second axis, and the base comprises a second pivot hole through which the second pivot shaft is inserted,

the frame rotates around the second axis relative to the base by the rotation of the second rotating piece and the pushing of the fourth elastic piece.

22. The projector as claimed in claim 14, wherein the base includes a first via and a second via, the first boss and the second boss respectively extend into the first via and the second via, and outer contours of the first boss and the second boss correspond to inner contours of the first via and the second via.

23. The projector as claimed in claim 22, wherein any one of the first guide hole and the second guide hole is in the shape of a trimmed circle.

24. The projector as claimed in claim 22, wherein the shape of any one of the first guide hole and the second guide hole is a shape in which a circular arc and a chord are combined or a polygon.

25. The projector as claimed in claim 14, wherein the adjustable optical module further comprises a first resistance-reducing member and a second resistance-reducing member, wherein

The first resistance reducing piece is fixed on one surface, facing the base, of the bearing piece, the surface roughness of the first resistance reducing piece is smaller than that of the bearing piece, and the other end of the first rotating piece pushes the bearing piece by abutting against the first resistance reducing piece;

the second resistance reducing piece is fixed on one surface of the frame facing the base, the surface roughness of the second resistance reducing piece is smaller than that of the frame, and the other end of the second rotating piece pushes the frame by abutting against the second resistance reducing piece.

26. The projector as claimed in claim 14, wherein the first adjusting assembly further comprises a first housing and a first torsion spring, the first housing is fixed to the base, the first rotating member is pivotally connected to the first housing, the first torsion spring is connected between the first housing and the first rotating member, the second adjusting assembly further comprises a second housing and a second torsion spring, the second housing is fixed to the base, the second rotating member is pivotally connected to the second housing, and the second torsion spring is connected between the second housing and the second rotating member.

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