CN113391502A - Adjusting module and projector - Google Patents
Adjusting module and projector Download PDFInfo
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- CN113391502A CN113391502A CN202010164718.XA CN202010164718A CN113391502A CN 113391502 A CN113391502 A CN 113391502A CN 202010164718 A CN202010164718 A CN 202010164718A CN 113391502 A CN113391502 A CN 113391502A
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- wedge
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
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- Optics & Photonics (AREA)
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Abstract
An adjusting module comprises a first wedge piece, a first elastic piece, an adjusting piece, a second wedge piece and a second elastic piece. The first wedge-shaped piece is used for being arranged beside a first object, and the first wedge-shaped piece is used for moving back and forth along a first direction and is provided with a first inclined surface. The first elastic piece is arranged on one side of the first wedge-shaped piece. The adjusting piece is arranged on the other side of the first wedge piece and movably presses against the first wedge piece along the first direction. A second wedge-shaped member is secured to the first article, the second wedge-shaped member having a second sloped surface that abuts the first sloped surface such that the second wedge-shaped member is adapted to move back and forth in a second direction as the first wedge-shaped member moves back and forth in the first direction. The second elastic piece is used for being arranged on one side of the first object close to the second object. The invention also provides a projector with the adjusting module. The adjusting module and the projector can adjust the distance between two objects.
Description
Technical Field
The present invention relates to an adjusting module and a projector, and more particularly, to an adjusting module capable of adjusting a distance between two objects and a projector having the same.
Background
Currently, in the assembly process of a projector, a thickness gauge is inserted between a fluorescent color wheel and a lens module to adjust the distance between a wavelength conversion element and a lens group, so that the distance between the wavelength conversion element and the lens group is fixed. However, the assembly force of the assembly personnel in the production line has an inconsistent problem, so that the distance between the wavelength conversion element and the lens group of each projector may be inconsistent, thereby affecting the conversion efficiency of the wavelength conversion element.
The background section is provided to facilitate an understanding of the present disclosure, and thus the disclosure in the background section may include techniques that are not well known to those skilled in the art. The statements in the "background" section do not represent that matter or the problems which may be solved by one or more embodiments of the present invention, but are known or appreciated by those skilled in the art before filing the present application.
Disclosure of Invention
The invention provides an adjusting module which can adjust the distance between two objects.
The invention provides a projector which is provided with the adjusting module.
Other objects and advantages of the present invention will be further understood from the technical features disclosed in the present invention.
In order to achieve one or a part of or all of the above or other objects, an embodiment of the invention provides an adjusting module for adjusting a relative position between a first object and a second object, the adjusting module including a first wedge, a first elastic member, an adjusting member, a second wedge, and a second elastic member. The first wedge-shaped piece is used for being arranged beside a first object, and the first wedge-shaped piece is used for moving back and forth along a first direction and is provided with a first inclined surface. The first elastic piece is arranged on one side of the first wedge-shaped piece. The adjusting piece is arranged on the other side of the first wedge piece and movably presses against the first wedge piece along the first direction. A second wedge-shaped member is secured to the first article, the second wedge-shaped member having a second sloped surface, wherein the second sloped surface abuts the first sloped surface such that the second wedge-shaped member is adapted to move back and forth in a second direction as the first wedge-shaped member moves back and forth in the first direction. The second elastic piece is used for being arranged on one side of the first object close to the second object. When the adjusting piece pushes the first wedge-shaped piece along the first direction, the first elastic piece is compressed, the first inclined surface of the first wedge-shaped piece pushes the second inclined surface of the second wedge-shaped piece, the second wedge-shaped piece moves along the second direction, and the second elastic piece is compressed, so that the first object is close to the second object. When the adjusting piece moves in the reverse direction of the first direction, the first elastic piece recovers to push the first wedge piece to move in the reverse direction of the first direction, and the second elastic piece correspondingly recovers to push the second wedge piece to move in the reverse direction of the second direction, so that the first object is far away from the second object.
In order to achieve one or a part of or all of the above objectives or other objectives, an embodiment of the invention provides a projector, which includes a light source, a lens assembly, a wavelength conversion element, a first adjusting module, a light valve, and a projection lens. The light source is used for emitting an excitation light beam. The lens group is configured on the light path of the excitation beam. The wavelength conversion element is configured beside the lens group and is used for converting the excitation light beam into a conversion light beam. The first adjusting module is used for adjusting the relative position between the lens group and the wavelength conversion element and comprises a first wedge piece, a first elastic piece, an adjusting piece, a second wedge piece and a second elastic piece. The first wedge-shaped piece is used for being arranged beside a first object, and the first wedge-shaped piece is used for moving back and forth along a first direction and is provided with a first inclined surface. The first elastic piece is arranged on one side of the first wedge-shaped piece. The adjusting piece is arranged on the other side of the first wedge piece and movably presses against the first wedge piece along the first direction. A second wedge-shaped member is secured to the first article, the second wedge-shaped member having a second sloped surface, wherein the second sloped surface abuts the first sloped surface such that the second wedge-shaped member is adapted to move back and forth in a second direction as the first wedge-shaped member moves back and forth in the first direction. The second elastic piece is used for being arranged on one side of the first object close to the second object. When the adjusting piece pushes the first wedge-shaped piece along the first direction, the first elastic piece is compressed, the first inclined surface of the first wedge-shaped piece pushes the second inclined surface of the second wedge-shaped piece, the second wedge-shaped piece moves along the second direction, and the second elastic piece is compressed, so that the first object is close to the second object. When the adjusting piece moves in the reverse direction of the first direction, the first elastic piece recovers to push the first wedge piece to move in the reverse direction of the first direction, and the second elastic piece correspondingly recovers to push the second wedge piece to move in the reverse direction of the second direction, so that the first object is far away from the second object. The light valve is used for converting the conversion light beam and/or the excitation light beam into an image light beam. The projection lens is used for projecting image beams.
In view of the above, in the adjusting module of the present invention, when the adjusting member pushes the first wedge member in the first direction, the first elastic member is compressed, the first inclined surface of the first wedge member pushes against the second inclined surface of the second wedge member, so that the second wedge member moves in the second direction and the second elastic member is compressed, so that the first object is close to the second object. When the adjusting piece moves in the reverse direction of the first direction, the first elastic piece recovers to push the first wedge piece to move in the reverse direction of the first direction, and the second elastic piece correspondingly recovers to push the second wedge piece to move in the reverse direction of the second direction, so that the first object is far away from the second object. Therefore, the user can adjust the distance between the first object and the second object through the adjusting module. When the adjusting module is applied to a projector, the adjusting module can be used for adjusting the distance between the lens group and the wavelength conversion element, so that the wavelength conversion element can provide good conversion efficiency.
Drawings
Fig. 1 is a schematic diagram of a projector according to an embodiment of the invention.
Fig. 2 is a schematic side view of an adjustment module according to an embodiment of the invention.
Fig. 3 is a schematic cross-sectional view of the adjustment module of fig. 2.
FIG. 4 is a schematic cross-sectional view of the conditioning module of FIG. 2 after conditioning the conditioning element.
Fig. 5 is a perspective view of a portion of the housing of fig. 2 hidden.
Fig. 6 is a perspective view of a hidden part of a housing of an adjustment module according to another embodiment of the invention.
Detailed Description
The foregoing and other technical and other features and advantages of the invention will be apparent from the following detailed description of a preferred embodiment, which proceeds with reference to the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.
Fig. 1 is a schematic diagram of a projector according to an embodiment of the invention. Referring to fig. 1, a projector 10 of the present embodiment includes a light source 30, a lens assembly 40, a wavelength conversion device 50, at least one adjusting module 100, a light valve 80, and a projection lens 90.
The light source 30 is used for emitting an excitation light beam L1. In the present embodiment, the light source 30 is, for example, a laser light source, but in other embodiments, the light source 30 may also be a light emitting diode or other light sources. The light emitted by the light source 30 is, for example, blue light, but may be other color light beams, and the disclosure is not limited thereto. For example, the light source 30 may include a plurality of laser elements (not shown) arranged in an array, for example, the laser elements are Laser Diodes (LDs), for example. In other embodiments, there may be more than one light source 30. In other embodiments, the light source 30 may be a solid-state illumination source such as a light emitting diode (light emitting diode).
The lens assembly 40 is disposed on the optical path of the excitation beam L1. The lens group 40 is, for example, a focusing lens group, and is exemplified by a plurality of (for example, two) convex lenses, but in other embodiments, the lens group 40 may be formed by combining a concave lens and a convex lens, or by combining a plurality of concave lenses, and the kind of the lens group 40 is not limited thereto.
The wavelength conversion element 50 is disposed beside the lens group 40 and is used for converting the excitation light beam L1 into a conversion light beam L2. The excitation light beam L1 emitted by the light source 30 is irradiated onto the wavelength converting element 50 disposed on the optical path of the excitation light beam L1, and the wavelength converting element 50 can convert the excitation light beam L1 to generate a converted light beam L2 having a different wavelength, wherein the wavelength converting element 50 can be, for example, a phosphor wheel (phosphor wheel). For example, the wavelength conversion element 50 may convert the blue excitation light beam L1 into the converted light beam L2 of another color, which the present disclosure is not limited to.
The light valve 80 is used for converting the converted light beam L2 and/or the excitation light beam L1 into the image light beam L3. More specifically, the converted light beam L2 emitted from the wavelength conversion element 50 may further be irradiated to the light valve 80, and the light valve 80 may sequentially convert the converted light beam L2 and the unconverted excitation light beam L1 into the image light beam L3.
In the present embodiment, the light valve 80 is used for converting the converted light beam L2 from the wavelength conversion element 50 into the image light beam L3. For example, the light valve 80 is a reflective light modulator such as a Digital Micro-mirror Device (DMD) or a Liquid Crystal On Silicon (LCoS) panel. In some embodiments, the light valve 80 may be a transmissive light Modulator such as a transmissive Liquid Crystal Panel (Liquid Crystal Display Panel), an Electro-Optic Modulator (Electro-Optic Modulator), a magneto-Optic Modulator (magneto-Optic Modulator), an Acousto-Optic Modulator (AOM), or the like. The present disclosure is not limited to the type or kind of light valve 80. In some embodiments, the detailed steps and implementation of the method for converting the converted light beam L2 into the image light beam L3 by the light valve 80 can be obtained by the ordinary knowledge in the art with sufficient teachings, suggestions and implementation descriptions, and thus, the detailed description thereof is omitted.
The projection lens 90 is used for projecting the image light beam L3. The projection lens 90 is located on the transmission path of the image beam L3 and can project the image beam L3 out of the projector 10 to display a picture on a screen, a wall surface, or other projection target. In the present embodiment, the projection lens 90 includes, for example, a combination of one or more non-planar optical lenses having optical power, such as various combinations of non-planar lenses including a biconcave lens, a biconvex lens, a meniscus lens, a convex-concave lens, a plano-convex lens, and a plano-concave lens. In one embodiment, the projection lens 90 may also include a plane optical lens for projecting the image beam L3 from the light valve 80 out of the projector 10 in a reflective or transmissive manner. The present disclosure is not limited to the type and kind of the projection lens 90.
It should be noted that, in the present embodiment, the lens assembly 40 is configured with the adjusting module 100, so that the relative position between the lens assembly 40 and the wavelength conversion element 50 can be adjusted. In other words, the adjusting module 100 can make the lens assembly 40 close to or far away from the wavelength conversion element 50, so that the wavelength conversion element 50 can provide good conversion efficiency.
In addition, in the present embodiment, the projector 10 further includes a filter element 60, a dodging element 70, and another adjusting module 100. In the present embodiment, the filter element 60 can filter out red light or green light, for example, and the type and the filtered wavelength of the filter element 60 are not limited thereto. The filter element 60 is disposed on the optical path of the converted light beam L2 and/or the excitation light beam L1.
The light uniformizing element 70 is, for example, an integrating rod, but is not limited thereto. The dodging element 70 is disposed on the optical path of the converted light beam L2 and/or the excitation light beam L1. The converted light beam L2 and/or the excitation light beam L1 are used to pass through the filter element 60 first and then the dodging element 70. Another adjusting module 100 is disposed between the dodging element 70 and the filter element 60 to adjust the relative position between the dodging element 70 and the filter element 60. Of course, in other embodiments, the adjusting module 100 may be disposed beside any two objects requiring adjusting the relative position, and the disposing position of the adjusting module 100 is not limited thereto.
In the present embodiment, the structure of the adjusting module 100 for adjusting the relative position between the dodging device 70 and the filter device 60 is the same as the structure of the adjusting module 100 for adjusting the relative position between the lens group 40 and the wavelength conversion device 50. The structure of the adjustment module 100 will be explained below.
Fig. 2 is a schematic side view of an adjustment module according to an embodiment of the invention. Fig. 3 is a schematic cross-sectional view of the adjustment module of fig. 2. FIG. 4 is a schematic cross-sectional view of the conditioning module of FIG. 2 after conditioning the conditioning element.
Referring to fig. 2 to 4, the adjusting module 100 is used for adjusting the relative position between the first object and the second object. In the present embodiment, the first object is a lens assembly 40, the lens assembly 40 is a focusing lens assembly, and the second object is a wavelength conversion element 50. In other embodiments, the first object may also be the dodging element 70, and the second object may also be the filtering element 60. Of course, the adjustment module 100 can also be applied to other devices besides the projector 10, and the types of the first object and the second object are not limited to the above.
As can be seen in fig. 3, the adjustment module 100 includes a first wedge member 110, a first elastic member 120, an adjustment member 130, a second wedge member 140, and a second elastic member 150. In the present embodiment, the first wedge member 110 or the second wedge member 140 includes a wedge member having a trapezoidal section, but in other embodiments, the first wedge member 110 or the second wedge member 140 includes a wedge member having a triangular section, and the shape of the first wedge member 110 or the second wedge member 140 is not limited thereto.
In this embodiment, referring to fig. 1 and fig. 3, the adjusting module 100 further includes a first base 105, the first object (the lens assembly 40) and the second object (the wavelength converting element 50) are disposed in the housing 20, and the first base 105 is fixed in the housing 20. The first base 105 has a receiving slot 106, and the first wedge 110 is partially disposed in the receiving slot 106. The first wedge-shaped member 110 is disposed beside the first object (lens group 40), and the first wedge-shaped member 110 is configured to move back and forth along a first direction D1 and has a first inclined surface 112.
The first elastic member 120 is disposed on one side (e.g., a lower side in fig. 3) of the first wedge-shaped member 110. More specifically, the first wedge-shaped member 110 includes a groove 114, the groove 114 is recessed from the side of the first wedge-shaped member 110 where the first elastic member 120 is disposed toward the other side, and is configured to receive the first elastic member 120, wherein the first elastic member 120 is disposed between the first base 105 and the first wedge-shaped member 110. The first elastic member 120 is, for example, a spring, but the kind of the first elastic member 120 is not limited thereto. In addition, the number of the first elastic members 120 may be plural, and is not limited by the drawings.
The adjusting member 130 is disposed on the other side (e.g., the upper side in fig. 3) of the first wedge-shaped member 110, and movably presses against the first wedge-shaped member 110 along the first direction D1. In the present embodiment, the adjusting element 130 is, for example, a screw, the housing 20 has, for example, a corresponding screw hole, and the adjusting element 130 is movably disposed through the housing 20 along the first direction D1. The nut of the adjusting member 130 is exposed out of the housing 22 for being held by a user for rotation. The adjustment member 130 is rotatable relative to the housing 20 to be movable in a first direction D1.
The second wedge 140 is fixed to the first article (lens group 40). More specifically, in the present embodiment, the first object (lens group 40) is disposed on the second base 180, and the second base 180 includes the second wedge 140. The second wedge 140 has a second ramp 142, wherein the second ramp 142 abuts the first ramp 112 such that the second wedge 140 is adapted to move back and forth along the second direction D2 as the first wedge 110 moves back and forth along the first direction D1.
The second elastic element 150 is disposed on a side of the first object (the lens assembly 40) close to the second object (the wavelength conversion element 50). The housing 20 includes a baffle 22 protruding from an inner surface, and the second elastic member 150 is disposed between the first object (the lens set 40) and the baffle 22. The second elastic member 150 is, for example, a spring, but the kind of the second elastic member 150 is not limited thereto. In addition, the number of the second elastic members 150 may be plural, and is not limited by the drawings.
In addition, the housing 20 may further optionally include a stopper portion 24 protruding from the inner surface, and disposed beside the first object (the lens group 40) and close to the second elastic member 150. The stop portion 24 is used to provide an end point of the first object (the lens assembly 40) approaching to the second object (the wavelength conversion element 50). More specifically, the stopping portion 24 is located beside the second base 180 and is the moving end point of the second base 180 in the second direction D2 to prevent the first object (the lens assembly 40) from approaching the second object (the wavelength conversion element 50) too much. In the case of the wavelength conversion element 50, which rotates during operation, if the lens assembly 40 is too close to the wavelength conversion element 50, the element may be damaged. Therefore, in the present embodiment, the stopping portion 24 is disposed beside the second base 180, so as to avoid the above situation.
Fig. 5 is a perspective view of a portion of the housing of fig. 2 hidden. Referring to FIG. 5, one of the first base 105 and the first wedge-shaped member 110 includes a first rail 162 extending in a first direction D1, and the other includes a first guide structure 160 that cooperates with the first rail 162. More specifically, in the present embodiment, the first guide rail 162 is disposed on the first base 105, and the first guide structure 160 is disposed on the first wedge 110. The first guide rail 162 projects toward the first wedge-shaped member 110 and the first guide structure 160 is recessed in the first wedge-shaped member 110. The first guide structure 160 extends along the first direction D1, and the first wedge-shaped member 110 is movable relative to the first base 105 along the first direction D1 by the concave-convex engagement of the first guide structure 160 and the first rail 162.
In addition, referring to fig. 3 to 5, one of the housing 20 and the first object (the lens group 40) includes a second guide rail 170 extending along the second direction D2, and the other includes a second guiding structure 172 engaged with the second guide rail 170. In the present embodiment, the second guiding rail 170 is disposed on the housing 20, and the second guiding structure 172 is disposed on the first object (the lens assembly 40), and further, since the first object is the lens assembly 40 in the present embodiment, the second base 180 is fixed on the lens assembly 40, and the second base 180 can be regarded as an extending structure of the lens assembly 40, in the present embodiment, the second guiding structure 172 is disposed on the second base 180 fixed on the first object (the lens assembly 40). The second rail 170 is recessed in the housing 20 and the second guide structure 172 protrudes toward the housing 20. The second guiding rail 170 extends along the second direction D2, and the second base 180 can move along the second direction D2 relative to the housing 20 through the concave-convex matching of the second guiding structure 172 and the second guiding rail 170, so that the first object (the lens group 40) moves along the second direction D2 relative to the housing 20 to approach or separate from the second object (the wavelength conversion element 50).
Of course, the form of the first guide structure 160, the first rail 162, the second guide structure 172 and the second rail 170 is not limited to the above. Fig. 6 is a perspective view of a hidden part of a housing of an adjustment module according to another embodiment of the invention. Referring to fig. 6, in the present embodiment, the first guide rail 162a is disposed on the first base 105, and the first guide structure 160a is disposed on the first wedge 110. The first guide rail 162 is recessed in the first base 105, and the first guide structure 160a protrudes toward the first base 105. Similarly, the first wedge-shaped member 110 is movable in the first direction D1 relative to the first base 105 by the concave-convex engagement of the first guide structure 160a and the first rail 162 a.
In addition, the second guiding rail 170a is disposed on the housing 20, and the second guiding structure 172a is disposed on the second base 180 fixed on the first object (the lens group 40). The second guiding rail 170a protrudes toward the second base 180 fixed on the first object (the lens set 40), and the second guiding structure 172a is recessed in the first object (the lens set 40), further, since the first object is the lens set 40 in the present embodiment, the second base 180 is fixed on the lens set 40, and the second base 180 can be regarded as an extension structure of the lens set 40, in this embodiment, the second guiding structure 172a is recessed in the second base 180 fixed on the first object (the lens set 40). Similarly, the second base 180 can move along the second direction D2 relative to the housing 20 through the concave-convex matching of the second guiding structure 172a and the second guiding rail 170a, so that the first object (the lens group 40) moves along the second direction D2 relative to the housing 20 to approach or separate from the second object (the wavelength conversion element 50).
Referring back to fig. 3 and 4, the operation of the adjusting module 100 is illustrated by the operations of fig. 3 to 4, when the adjusting element 130 pushes the first wedge-shaped element 110 along the first direction D1, the first elastic element 120 is compressed, the first inclined surface 112 of the first wedge-shaped element 110 pushes against the second inclined surface 142 of the second wedge-shaped element 140, the second wedge-shaped element 140 moves along the second direction D2, and the second elastic element 150 is compressed, so that the first object (the lens group 40) is close to the second object (the wavelength conversion element 50).
In contrast, as can be seen from the operations of fig. 4 to 3, when the adjusting member 130 moves in the direction D1, the first elastic member 120 is restored to push the first wedge member 110 to move in the direction D1, and the second elastic member 150 is correspondingly restored to push the second wedge member 140 to move in the direction D2, so that the first object (the lens group 40) is away from the second object (the wavelength conversion element 50). In this way, the user can adjust the distance between the first object and the second object through the adjusting module 100.
If the operator can determine the distance between the first object (the lens set 40) and the second object (the wavelength conversion element 50) is adjusted by optical means in the factory assembly stage, then the adjusting element 130 can be fixed to the housing 22 by dispensing or the like, or/and the second base 180 can be fixed to the housing 22, so that the relative positions of the first object (the lens set 40) and the second object (the wavelength conversion element 50) are not changed.
In summary, in the adjusting module of the present invention, when the adjusting member pushes the first wedge member in the first direction, the first elastic member is compressed, the first inclined surface of the first wedge member pushes the second inclined surface of the second wedge member, the second wedge member moves in the second direction, and the second elastic member is compressed, so that the first object is close to the second object. When the adjusting piece moves in the reverse direction of the first direction, the first elastic piece recovers to push the first wedge piece to move in the reverse direction of the first direction, and the second elastic piece correspondingly recovers to push the second wedge piece to move in the reverse direction of the second direction, so that the first object is far away from the second object. Therefore, the user can adjust the distance between the first object and the second object through the adjusting module. When the adjusting module is applied to a projector, the adjusting module can be used for adjusting the distance between the lens group and the wavelength conversion element, so that the wavelength conversion element can provide good conversion efficiency.
However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made by the claims and the summary of the invention are still within the scope of the present invention. Furthermore, it is not necessary for any embodiment or claim of the invention to address all of the objects, advantages, or features disclosed herein. In addition, the abstract and the title of the invention are provided for assisting the retrieval of patent documents and are not intended to limit the scope of the invention. Furthermore, the terms "first", "second", and the like in the description or the claims are used only for naming elements (elements) or distinguishing different embodiments or ranges, and are not used for limiting the upper limit or the lower limit on the number of elements.
Description of reference numerals:
d1: a first direction
D2: second direction
L1: excitation light beam
L2: converting a light beam
L3: image light beam
10: projector with a light source
20: shell body
22: baffle plate
24: stop part
30: light source
40: lens group
50: wavelength conversion element
60: light filtering element
70: light uniformizing element
80: light valve
90: projection lens
100: adjusting module
105: first base
106: containing groove
110: first wedge-shaped piece
112: first inclined plane
114: groove
120: first elastic member
130: adjusting piece
140: second wedge-shaped piece
142: second inclined plane
150: second elastic member
160. 160 a: first guide structure
162. 162 a: first guide rail
170. 170 a: second guide rail
172. 172 a: second guiding structure
180: a second base.
Claims (17)
1. An adjustment module for adjusting a relative position between a first object and a second object, the adjustment module comprising a first wedge member, a first spring, an adjustment member, a second wedge member, and a second spring, wherein:
the first wedge-shaped piece is used for being arranged beside the first object, the first wedge-shaped piece is used for moving back and forth along a first direction and is provided with a first inclined surface;
the first elastic piece is arranged on one side of the first wedge-shaped piece;
the adjusting piece is arranged on the other side of the first wedge-shaped piece and movably presses against the first wedge-shaped piece along the first direction;
the second wedge-shaped member being secured to the first article, the second wedge-shaped member having a second sloped surface, wherein the second sloped surface abuts the first sloped surface such that the second wedge-shaped member is adapted to move back and forth in a second direction as the first wedge-shaped member moves back and forth in the first direction; and
the second elastic piece is used for being arranged on one side of the first object close to the second object, wherein
When the adjusting member pushes the first wedge-shaped member in the first direction, the first elastic member is compressed, the first inclined surface of the first wedge-shaped member pushes against the second inclined surface of the second wedge-shaped member, the second wedge-shaped member moves in the second direction and the second elastic member is compressed, so that the first object is close to the second object,
when the adjusting piece moves in the reverse direction of the first direction, the first elastic piece recovers to push the first wedge piece to move in the reverse direction of the first direction, and the second elastic piece correspondingly recovers to push the second wedge piece to move in the reverse direction of the second direction, so that the first object is far away from the second object.
2. The adjustment module of claim 1, further comprising:
the first base is used for being fixed on the shell, the first base is provided with a containing groove, the first wedge piece part is located in the containing groove, one of the first base and the first wedge piece comprises a first guide rail extending along the first direction, and the other one of the first base and the first wedge piece comprises a first guide structure matched with the first guide rail.
3. The adjustment module of claim 2, wherein the first guide track is disposed on the first base and the first guide structure is disposed on the first wedge member,
wherein the first guide rail protrudes towards the first wedge-shaped element and the first guide structure is recessed in the first wedge-shaped element, or
Wherein the first guide rail is recessed in the first base and the first guide structure protrudes toward the first base.
4. The adjustment module of claim 1, wherein the first object and the second object are disposed in a housing, the adjustment member movably penetrates the housing along the first direction, the housing includes a baffle protruding from an inner surface, the second elastic member is disposed between the first object and the baffle, one of the housing and the first object includes a second guide rail extending along the second direction, and the other includes a second guide structure engaged with the second guide rail.
5. The adjustment module of claim 4, wherein the second guide track is disposed on the housing and the second guide structure is disposed on the first object,
wherein the second guide rail protrudes towards the first object and the second guide structure is recessed in the first object, or
Wherein the second guide rail is recessed in the housing and the second guide structure protrudes toward the housing.
6. The adjustment module of claim 1, wherein the first and second objects are disposed in a housing, the housing includes a stop portion protruding from an inner surface thereof, the stop portion is disposed beside the first object and adjacent to the second elastic member, and the stop portion is configured to provide an end point of approach of the first object to the second object.
7. The adjustment module of claim 1, wherein the second object is a wavelength conversion element and the first object is a lens assembly.
8. The adjustment module of claim 1, wherein the second object is a filter element and the first object is a dodging element.
9. The adjustment module of claim 1, wherein the first wedge member includes a groove recessed from the first wedge member toward the other side at the side where the first spring is disposed and configured to receive the first spring, wherein the first spring is disposed between the first base and the first wedge member.
10. The adjustment module of claim 1, wherein the first or second wedge comprises a triangular cross-sectional wedge or a trapezoidal cross-sectional wedge.
11. A projector is characterized in that the projector comprises a light source, a lens group, a wavelength conversion element, a first adjusting module, a light valve and a projection lens, wherein:
the light source is used for emitting an excitation light beam;
the lens group is configured on the light path of the excitation light beam;
the wavelength conversion element is configured beside the lens group and is used for converting the excitation light beam into a conversion light beam;
the first adjusting module is used for adjusting the relative position between the lens group and the wavelength conversion element, and comprises a first wedge, a first elastic member, an adjusting member, a second wedge and a second elastic member, wherein:
the first wedge-shaped element is used for being arranged beside the lens group, is used for moving back and forth along a first direction and is provided with a first inclined surface;
the first elastic piece is arranged on one side of the first wedge-shaped piece;
the adjusting piece is arranged on the other side of the first wedge-shaped piece and movably presses against the first wedge-shaped piece along the first direction;
the second wedge fixed on the lens group, the second wedge having a second slope, wherein the second slope abuts against the first slope, such that the second wedge is configured to move back and forth in a second direction as the first wedge moves back and forth in the first direction; and
the second elastic element is used for being configured at one side of the lens group close to the wavelength conversion element, wherein
When the adjusting member pushes the first wedge member in the first direction, the first elastic member is compressed, the first inclined surface of the first wedge member pushes against the second inclined surface of the second wedge member, the second wedge member moves in the second direction and the second elastic member is compressed to bring the lens group close to the wavelength converting element,
when the adjusting member moves in the reverse direction of the first direction, the first elastic member recovers to push the first wedge member to move in the reverse direction of the first direction, and the second elastic member correspondingly recovers to push the second wedge member to move in the reverse direction of the second direction, so that the lens group is far away from the wavelength conversion element;
the light valve is used for converting the conversion light beam and/or the excitation light beam into an image light beam; and
the projection lens is used for projecting the image light beam.
12. The projector of claim 11, further comprising a filter element, a dodging element, and a second adjustment module, wherein:
the filter element is configured on the light path of the conversion light beam and/or the excitation light beam;
the light homogenizing element is configured on the light path of the conversion light beam and/or the excitation light beam, and the conversion light beam and/or the excitation light beam are used for firstly passing through the filter element and then passing through the light homogenizing element; and
the second adjusting module is disposed between the light uniformizing element and the filter element to adjust a relative position between the light uniformizing element and the filter element, wherein a structure of the second adjusting module is the same as a structure of the first adjusting module.
13. The projector of claim 11, wherein the first adjustment module further comprises a first base, the lens group and the wavelength conversion element are configured to be located in a housing, the first base is configured to be fixed to the housing, the first base has a receiving slot, the first wedge portion is located in the receiving slot, one of the first base and the first wedge includes a first guide rail extending along the first direction, and the other includes a first guide structure cooperating with the first guide rail.
14. The projector as claimed in claim 11, wherein the lens assembly and the wavelength conversion element are disposed in a housing, the adjusting member is movably disposed through the housing along the first direction, the housing includes a baffle protruding from an inner surface, the second elastic member is disposed between the lens assembly and the baffle, one of the housing and the lens assembly includes a second guide rail extending along the second direction, and the other includes a second guiding structure engaged with the second guide rail.
15. The projector as claimed in claim 11, wherein the lens assembly and the wavelength conversion element are disposed in a housing, the housing includes a stop portion protruding from an inner surface thereof, the stop portion is disposed beside the lens assembly and near the second elastic member, and the stop portion is configured to provide a terminal point of the lens assembly approaching the wavelength conversion element.
16. The projector of claim 11, wherein the first wedge member comprises a groove recessed from the first wedge member toward the other side at the side where the first resilient member is disposed and configured to receive the first resilient member, wherein the first resilient member is disposed between the first base and the first wedge member.
17. The projector of claim 11, wherein the first wedge or the second wedge comprises a triangular cross-sectional wedge or a trapezoidal cross-sectional wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010164718.XA CN113391502A (en) | 2020-03-11 | 2020-03-11 | Adjusting module and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010164718.XA CN113391502A (en) | 2020-03-11 | 2020-03-11 | Adjusting module and projector |
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| Publication Number | Publication Date |
|---|---|
| CN113391502A true CN113391502A (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010164718.XA Pending CN113391502A (en) | 2020-03-11 | 2020-03-11 | Adjusting module and projector |
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| CN (1) | CN113391502A (en) |
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Application publication date: 20210914 |