CN113448146B - Adjusting mechanism, lens and projection device - Google Patents
Adjusting mechanism, lens and projection device Download PDFInfo
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- CN113448146B CN113448146B CN202010220256.9A CN202010220256A CN113448146B CN 113448146 B CN113448146 B CN 113448146B CN 202010220256 A CN202010220256 A CN 202010220256A CN 113448146 B CN113448146 B CN 113448146B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 52
- 230000009471 action Effects 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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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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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention provides an adjusting mechanism, a lens and a projection device, wherein the adjusting mechanism comprises a moving plate, a first rack, a first gear and a limiting piece, the moving plate is connected with the lens, the first rack is connected with the moving plate, the first gear acts on the first rack, the limiting piece acts on the moving plate to enable the moving plate to move in a limited way, when the first gear is driven, the first gear drives the first rack to move along a first direction, and the first rack drives the moving plate to move along a second direction under the action of the limiting piece so as to drive the lens to move along the second direction; when the first gear is driven reversely, the first gear drives the first rack to move reversely along the first direction, so that the first rack drives the movable plate to move reversely along the second direction under the action of the limiting piece, the lens is driven to move reversely along the second direction, and the first direction is different from the second direction, so that the lens can be adjusted in the horizontal direction and the vertical direction by using simple and cost-effective components.
Description
Technical Field
The present invention relates to an adjusting mechanism, a lens, and a projection apparatus, and more particularly, to an adjusting mechanism, a lens, and a projection apparatus for adjusting movement of a lens.
Background
At present, a common mode of adjusting the position of the lens in a lifting manner is to use a matching combination of a screw and a bevel gear, so that the lens moves along the screw in the vertical direction, and the lens moves in the horizontal direction by the aid of the bevel gear in a steering manner. Such designs require more and more complex mechanism drives to design the close screw and bevel gear, are expensive and inefficient, and such adjustment mechanisms are also more complex to assemble.
The existing lens moves in the vertical direction, generally, a matching combination of a screw and a spring is adopted, and the lens moves in the vertical direction through threads of the screw. Because the screw angle of the screw is smaller, the moving speed of the lens is very slow, the number of turns of the knob is enough to reach the required moving distance, the efficiency is low, and the using effect is not ideal. In addition, in order to consider the moving stress of the screw, the screw is arranged at the center of the lens, so that the space occupied by the whole adjusting mechanism is large, and the mechanism volume of the whole adjusting mechanism cannot be reduced.
Therefore, it is necessary to design a novel adjusting mechanism, lens and projection device to overcome the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide an adjusting mechanism, a lens and a projection device, which can adjust the lens in the horizontal direction and the vertical direction by simple and cost-effective components.
In order to achieve the above object, the present invention provides an adjusting mechanism for adjusting a lens, comprising: the movable plate is connected with the lens to fix the lens; the first rack is connected with the moving plate; a first gear acting on the first rack; and a limiting member acting on the moving plate to make the moving plate move restrictively; when the first gear is driven, the first gear drives the first rack to move along a first direction, so that the first rack drives the moving plate to move along a second direction under the action of the limiting piece, and the moving plate moves relative to the first rack to drive the lens to move along the second direction; the first gear is driven in a reverse direction to drive the first rack to move in a reverse direction along the first direction, so that the first rack drives the movable plate to move in a reverse direction along the second direction under the action of the limiting piece, and the movable plate moves relative to the first rack to drive the lens to move in a reverse direction along the second direction, and the first direction is different from the second direction.
Preferably, the adjusting mechanism further comprises a base, the base is provided with a first surface and a second surface, the first surface is connected with the second surface, the first surface is parallel to the light-emitting surface of the lens, the first gear is arranged on the first surface of the base, the moving plate is attached to the second surface of the base, the first rack comprises a first side plate and a second side plate, the first side plate is connected with the second side plate, the first side plate is parallel to the first surface, the first side plate is attached to the moving plate, the second side plate is attached to the first surface of the base, when the first gear is driven, the first gear drives the first side plate to move along the first direction relative to the first surface of the base and the second side plate relative to the moving plate, and the moving plate moves along the second direction relative to the second surface of the base under the action of the limiting piece so as to drive the lens to move along the second direction; when the first gear is reversely driven, the first gear drives the first side plate to reversely move along the first direction relative to the first surface of the base and the second side plate to reversely move along the second direction relative to the second surface of the base under the action of the limiting piece so as to drive the lens to reversely move along the second direction.
Preferably, the limiting piece is a sliding rail, the sliding rail is arranged on the lens along the second direction, and when the first rack moves along the first direction, the first rack drives the moving plate to move along the second direction on the sliding rail so as to drive the lens to move along the second direction; when the first rack moves in the reverse direction of the first direction, the first rack drives the moving plate to move in the reverse direction of the sliding rail in the second direction so as to drive the lens to move in the reverse direction of the second direction.
Preferably, the sliding rail comprises a first rack, a second rack, a first guide column, a second guide groove, a first guide groove and a second guide column, wherein the first guide groove is arranged on one of the first rack and the moving plate; when the first rack moves reversely along the first direction, the first guide groove is matched with the first guide post to enable the moving plate to move reversely along the second direction on the sliding rail.
Preferably, the first direction is perpendicular to the second direction, and an included angle between the first guiding groove and the first direction is equal to an included angle between the first guiding groove and the second direction.
Preferably, the lens further comprises a second rack and a second gear, wherein the second rack is connected with the lens, the second gear acts on the second rack to drive the second gear to drive the second rack to move along the first direction, so that the second rack drives the lens to move along the first direction; the second gear is driven reversely to drive the second rack to move reversely along the first direction, so that the second rack drives the lens to move reversely along the first direction.
Preferably, the lens further comprises a second guiding groove and a second guiding column, wherein the second guiding groove is arranged on one of the second rack and the lens, the second guiding column is arranged on the other of the second rack and the lens, and when the second rack moves along the first direction, the second guiding groove and the second guiding column are matched to enable the lens to move along the first direction; when the second rack moves along the reverse direction of the first direction, the second guide groove and the second guide post cooperate to enable the lens to move along the reverse direction of the first direction.
Preferably, the adjusting mechanism further comprises a base, the base is provided with a first surface and a third surface, the first surface is connected with the third surface, the third surface is parallel to the light-emitting surface of the lens, the second gear is arranged on the first surface of the base, the second rack comprises a third side plate and a fourth side plate, the third side plate is connected with the fourth side plate, the third side plate is attached to the first surface of the base, the fourth side plate is attached to the third surface of the base, and when the second gear is driven, the second gear drives the third side plate to move along the first direction relative to the first surface of the base and the third surface of the fourth side plate relative to the base, so that the lens moves along the first direction; when the second gear is driven reversely, the second gear drives the third side plate to move reversely along the first direction relative to the first surface of the base and the fourth side plate to move reversely along the first direction relative to the third surface of the base.
The invention also provides a lens, which is characterized in that the lens comprises: a lens body; the adjusting mechanism is arranged on the lens body and drives the adjusting mechanism to move the lens along the first direction or the second direction.
The invention also provides a projection device which is characterized by comprising the lens.
Compared with the prior art, the adjusting mechanism, the lens and the projection device provided by the embodiment of the invention are used for adjusting the lens, the adjusting mechanism comprises a moving plate, a first rack, a first gear and a limiting piece, the moving plate is connected with the lens, the first rack is connected with the moving plate, the first gear acts on the first rack, the limiting piece acts on the moving plate to enable the moving plate to move in a limited way, when the first gear is driven, the first gear drives the first rack to move in a first direction, and the first rack drives the moving plate to move in a second direction under the action of the limiting piece so as to drive the lens to move in the second direction; when the first gear is driven reversely, the first gear drives the first rack to move reversely along the first direction, so that the first rack drives the movable plate to move reversely along the second direction under the action of the limiting piece, the lens is driven to move reversely along the second direction, and the first direction is different from the second direction, so that the lens can be adjusted in the horizontal direction and the vertical direction by using simple and cost-effective components.
Drawings
FIG. 1 is a schematic perspective view of an adjusting mechanism according to an embodiment of the invention;
FIG. 2 is a schematic view of another view of an adjusting mechanism according to an embodiment of the invention;
fig. 3 is a front view schematically illustrating an adjusting mechanism according to an embodiment of the invention.
Detailed Description
For a further understanding of the objects, construction, features and functions of the invention, reference should be made to the following detailed description of the preferred embodiments.
Referring to fig. 1, fig. 1 is a schematic perspective view of an adjusting mechanism according to an embodiment of the invention. The embodiment of the invention provides an adjusting mechanism 100 for adjusting a lens 101, wherein the adjusting mechanism 100 comprises a moving plate 1, a first rack 2, a first gear 3 and a limiting piece 4, wherein the moving plate 1 is connected with the lens 101 to fix the lens 101, the first rack 2 is connected with the moving plate 1, the first gear 3 acts on the first rack 2, the limiting piece 4 acts on the moving plate 1 to enable the moving plate 1 to move in a limited way, when the first gear 3 is driven, the first gear 3 drives the first rack 2 to move along a first direction 1001, so that the first rack 2 drives the moving plate 1 to move along a second direction 1002 under the action of the limiting piece 4, and the moving plate 1 moves relative to the first rack 2 to drive the lens 101 to move along the second direction 1002; when the first gear 3 is driven in the reverse direction, the first gear 3 drives the first rack 2 to move in the reverse direction of the first direction 1001, so that the first rack 2 drives the moving plate 1 to move in the reverse direction of the second direction 1002 under the action of the limiting member 4, and the moving plate 1 moves relative to the first rack 2, so as to drive the lens 101 to move in the reverse direction of the second direction 1002, and the first direction 1001 is different from the second direction 1002, so that the lens can be adjusted in the horizontal direction and the vertical direction by using simple and cost-effective components.
Referring to fig. 1, the adjustment mechanism 100 further includes a base 102, and the structure and positional relationship of the moving plate 1, the first rack 2, the first gear 3, the stopper 4, the base 102, and the lens 101 will be described below. For convenience of description, the spatial coordinate system is set up, and the first direction 1001, the second direction 1002 and the third direction 1003 are perpendicular to each other, but not limited thereto.
Referring to fig. 1, the base 102 has a first surface 1021, a second surface 1022, and a third surface 1023, the second surface 1022 is opposite to the third surface 1023, and the first surface 1021 is in contact with the second surface 1022 and the third surface 1023, respectively. The lens 101 is disposed through the base 102 along the third direction 1003, the base 102 is used for carrying the lens 101, and each component is disposed on the base 102 to adjust the lens 101, and the second surface 1022 and the third surface 1033 are located on the light-emitting surface of the lens 101.
Referring to fig. 1, the moving plate 1 includes an opening 11, a through hole 12, a first guide post 51 and a first protruding post 13, wherein the opening 11 penetrates the moving plate 1 along a third direction 1003, the through hole 12 penetrates the moving plate 1 along a second direction 1002, the first guide post protrudes from the moving plate 1 along the third direction 1003, and the first protruding post 13 protrudes from the moving plate 1 along the second direction 1002. The moving plate 1 is attached to the second surface 1022 of the base 102, and the lens 101 is disposed through the opening 11 of the moving plate 1 along the third direction 1003, and the moving plate 1 is limited to move in the second direction 1002 or the opposite direction of the second direction 1002.
Referring to fig. 1, the first rack 2 includes a first tooth portion 21, a first side plate 201, a second side plate 202, a first groove 22, and a first guide groove 52, the first tooth portion 21 is disposed on a first surface 1021 of the base 102, the second side plate 202 is attached to the first surface 1021 of the base 102, the second side plate 202 is vertically connected to the first side plate 201, the first side plate 201 is attached to the moving plate 1, the first groove 22 penetrates the first rack 2 in a second direction 1002, and the first guide groove 52 penetrates the first rack 2 in a third direction 1003. The first boss 13 of the moving plate 1 is inserted into the first groove 22 of the first rack 2, the first guide post 51 of the moving plate 1 is inserted into the first guide groove 52 of the first rack 2, and the first rack 2 can move along the first direction 1001 or the reverse direction of the first direction 1001.
Referring to fig. 1, the first gear 3 is disposed on the first surface 1021 of the base 102, and the first gear 3 is engaged with the first tooth portion 21 of the first rack 2, and when the first gear 3 rotates, the first gear 3 drives the first rack 2 to move. The first gear 3 and the first rack 2 are inexpensive in practical applications, so that the adjustment mechanism 100 is inexpensive and easy to assemble. The first gear 3 may be a set of reduction gear sets or a single gear, as the case may be, but is not limited thereto. The adjusting mechanism 100 further includes a first knob pivotally connected to the first gear 3, and the operator rotates the first knob to rotate the first gear 3, which is not limited thereto.
Referring to fig. 1, the stopper 4 is disposed on the base 102 along the second direction 1002, the stopper 4 is disposed through the through hole 12 of the moving plate 1, and the stopper 4 restricts the moving direction of the moving plate 1 so as to move the moving plate 1 in the second direction 1002 or the reverse direction of the second direction 1002. In the embodiment, the limiting member 4 is a sliding rail 41, the sliding rail 41 is disposed on the lens 101 along the second direction 1002, and when the first rack 2 moves along the first direction 1001, the first rack 2 drives the moving plate 1 to move along the second direction 1002 along the sliding rail 41, so as to drive the lens 101 to move along the second direction 1002; when the first rack 2 moves in the reverse direction of the first direction 1001, the first rack 2 drives the moving plate 1 to move in the reverse direction of the second direction 1002 along the sliding rail 41, so as to drive the lens 102 to move in the reverse direction of the second direction 1002, and the limiting member 4 is not limited to the sliding rail 41, depending on the actual situation.
Referring to fig. 2, fig. 2 is a schematic view of another view of an adjusting mechanism according to an embodiment of the invention. The adjustment mechanism 100 further includes a second rack 6, where the second rack 6 is attached to the first surface 1021 of the base 102 and the third surface 1023 of the base 102, the second rack 6 includes a second tooth 61, a third side plate 603, a fourth side plate 604, a second slot 62, and a second guide slot 81, the second tooth 61 is disposed on the third surface 1023 of the base 102, the third side plate 603 is attached to the first surface 1021 of the base 102, the fourth side plate 604 is attached to the third surface 1023 of the base 102, the second slot 62 penetrates the second rack 6 along the second direction 1002, and the second guide slot 81 penetrates the second rack 6 along the third direction 1003. The second rack 6 moves in the first direction 1001 or in a reverse direction of the first direction 1001. The base 102 further includes a second boss 1024, where the second boss 1024 is protruded on the first surface 1021 of the base 102 along the second direction 1002, and the second boss 1024 is penetrating the second slot 62 to move the second rack 6 in the first direction 1001.
Referring to fig. 2, the adjusting mechanism 100 further includes a second gear 7, the second gear 7 is disposed on the first surface 1021 of the base 102, the second gear 7 is engaged with the tooth portion 61 of the second rack 6, and when the second gear 7 rotates, the second gear 7 drives the second rack 6 to move. The second gear 7 and the second rack 6 are inexpensive in practical use, so that the adjustment mechanism 100 is inexpensive and easy to assemble. The second gear 3 may be a set of reduction gear sets or a single gear, as the case may be, but is not limited thereto. The adjusting mechanism 100 further includes a first knob pivotally connected to the first gear 3, and the operator rotates the first knob to rotate the first gear 3, which is not limited thereto.
Referring to fig. 1 and 2, the lens 101 includes a second guide post 82, the second guide post 82 is protruding from the lens 101 along a third direction 1003, the second guide post 82 is penetrating through the second guide groove 81 of the second rack 6, and when the second rack 6 moves along the first direction 1001, the second rack 6 drives the lens 101 to move along the first direction 1001.
Referring to fig. 1 and 2, the adjustment mechanism 100 further includes a vibration member 9, the vibration member 9 acting on the lens 101, and the lens 101 vibrating when the lens 101 moves. In practical implementation, the vibration member 9 may be a motor, and when driving the first gear 3 or the second gear 7, the vibration member drives the lens 101 to vibrate, so that an operator can feel the movement of the lens 101 when driving the first gear 3 or the second gear 7, and the present invention is not limited thereto.
In the embodiment of the invention, when the first gear 3 is driven, the first gear 3 drives the first side plate 201 to move along the first direction 1001 relative to the first surface 1021 of the base 102 and the second side plate 202 relative to the moving plate 1, so that the moving plate 1 moves along the second direction 1002 relative to the second surface 1022 of the base 102 under the action of the limiting member 4 to drive the lens 101 to move along the second direction 1001; when the first gear 3 is driven in the reverse direction, the first gear 3 drives the first side plate 201 and the second side plate 202 to move in the reverse direction of the first direction 1001 relative to the first surface 1021 of the base 102, so that the moving plate 1 moves in the reverse direction of the second direction 1002 relative to the second surface 1022 of the base 102 under the action of the limiting member 4 to drive the lens 101 to move in the reverse direction of the second direction 1002.
In an embodiment of the present invention, referring to fig. 3, fig. 3 is a front view schematically illustrating an adjusting mechanism according to an embodiment of the present invention. The angle between the first guiding groove 52 and the first direction 1001 is equal to the angle between the first guiding groove 52 and the second direction 1002. The first guide groove 52 forms a first angle A1 with the first direction 1001, the first guide groove 52 forms a second angle A2 with the second direction 1002, and the first angle A1 is equal to the second angle A2. In the plane formed by the first direction 1001 and the second direction 1002, the first guide groove 52 is 45 °, and when the first rack 2 moves a first distance along the first direction 1001, the moving plate 1 moves a second distance along the second direction 1002, and the first distance is equal to the second distance.
In the embodiment of the present invention, referring to fig. 1, the first guiding groove 52 is disposed on one of the first rack 2 and the moving plate 1, the first guiding post 51 is disposed on the other of the first rack 2 and the moving plate 1, and when the first rack 2 moves along the first direction 1001, the first guiding groove 52 cooperates with the first guiding post 51 to move the moving plate 1 along the second direction 1002 under the action of the limiting member 4; when the first rack 2 moves in the reverse direction of the first direction 1001, the first guide groove 52 cooperates with the first guide post 51 to move the moving plate 1 in the reverse direction of the second direction 1002 under the action of the stopper 4.
In the embodiment of the present invention, referring to fig. 2, the second gear 7 is driven to drive the second rack 6 to move along the first direction 1001, so that the second rack 6 drives the lens 101 to move along the first direction 1001; the second gear 7 is driven reversely to drive the second rack 6 to move reversely along the first direction 1001, so that the second rack 6 drives the lens 101 to move reversely along the first direction 1001.
In the embodiment of the invention, when the second gear 7 is driven, the second gear 7 drives the third side plate 603 to move along the first direction 1001 relative to the first surface 1021 of the base 102 and the fourth side plate 604 to move along the first direction 1001 relative to the third surface 1023 of the base 102, so that the lens 101 moves along the first direction 1001; when the second gear 7 is driven in the reverse direction, the second gear 7 drives the third side plate 603 to move in the reverse direction of the first direction 1001 relative to the first surface 1021 of the base 102 and the fourth side plate 604 to move in the reverse direction of the first direction 1001 relative to the third surface 1023 of the base 102.
In the embodiment of the present invention, referring to fig. 2, the second guiding groove 81 is disposed on one of the second rack 6 and the lens 101, the second guiding post 82 is disposed on the other of the second rack 6 and the lens 101, and when the second rack 6 moves along the first direction 1001, the second guiding groove 81 and the second guiding post 82 cooperate to move the lens 101 along the first direction 1001; when the second rack 6 moves in the reverse direction of the first direction 1001, the second guide groove 81 and the second guide post 82 cooperate to move the lens 101 in the reverse direction of the first direction 1001.
In the embodiment of the present invention, referring to fig. 1 and 2, the lens 101 has an initial position, and when the first gear 3 is driven, the lens 101 moves to a first position along the second direction 1002; when the second gear 7 is driven, the lens 101 moves to the second position in the first direction 1001. Specifically, when the first gear 3 is driven, the first gear 3 drives the first rack 2 to move along the first direction 1001, so that the first rack 2 drives the moving plate 1 to move along the second direction 1002 under the action of the limiting member 4, so as to drive the lens 101 to move from the initial position to the first position along the second direction 1002; when the second gear 7 is driven, the second gear 7 drives the second rack 6 to move along the second direction 1001, so that the second rack 6 drives the lens 101 to move from the initial position to the second position along the first direction 1001, and the first gear 2 and the second gear 7 are driven to move the lens 101, so as to adjust the position of the lens 101 to meet the requirement of an operator.
The invention also provides a lens 101, the lens 101 comprises a lens body 1011 and the adjusting mechanism 100, the adjusting mechanism 100 is arranged on the lens body 1011, and the adjusting mechanism 100 is driven to move the lens body 1011 along the first direction 1001 or the second direction 1002.
The invention also provides a projection device, which comprises the lens 102.
In summary, the adjusting mechanism, the lens and the projection device provided by the invention are used for adjusting the lens, the adjusting mechanism comprises a moving plate, a first rack, a first gear and a limiting piece, the moving plate is connected with the lens, the first rack is connected with the moving plate, the first gear acts on the first rack, the limiting piece acts on the moving plate to make the moving plate move in a limited way, when the first gear is driven, the first gear drives the first rack to move along a first direction, and the first rack drives the moving plate to move along a second direction under the action of the limiting piece so as to drive the lens to move along the second direction; when the first gear is driven reversely, the first gear drives the first rack to move reversely along the first direction, so that the first rack drives the movable plate to move reversely along the second direction under the action of the limiting piece, the lens is driven to move reversely along the second direction, and the first direction is different from the second direction, so that the lens can be adjusted in the horizontal direction and the vertical direction by using simple and cost-effective components.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of the preferred embodiments of the invention and are not to be construed as limiting the invention. For clarity of description of the components required, the scale in the schematic drawings does not represent the proportional relationship of the actual components.
The invention has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. An adjustment mechanism for adjusting a lens, the adjustment mechanism comprising:
the base is provided with a first surface and a second surface, the first surface is connected with the second surface, and the first surface is parallel to the light emitting surface of the lens;
the moving plate is connected with the lens to fix the lens and is attached to the second surface of the base;
the first rack is connected with the movable plate and comprises a first side plate and a second side plate, the first side plate is connected with the second side plate, the first side plate is parallel to the first surface, the first side plate is attached to the movable plate, and the second side plate is attached to the first surface of the base;
a first gear acting on the first rack, the first gear being disposed on the first face of the base; and
a limiting member acting on the moving plate to make the moving plate move in a limited manner;
when the first gear is driven, the first gear drives the first side plate of the first rack to move along a first direction relative to the first surface of the base, and the first gear drives the second side plate of the first rack to move along the first direction relative to the moving plate, so that the moving plate moves along a second direction relative to the second surface of the base under the action of the limiting piece to drive the lens to move along the second direction; when the first gear is reversely driven, the first gear drives the first side plate of the first rack to reversely move along the first direction relative to the first surface of the base, and the first gear drives the second side plate of the first rack to reversely move along the first direction relative to the moving plate, so that the moving plate reversely moves along the second direction relative to the second surface of the base under the action of the limiting piece, and the first direction and the second direction are different.
2. The adjustment mechanism of claim 1, wherein the first rack further comprises a first tooth disposed on the first surface of the base, the first tooth being engaged with the first gear.
3. The adjusting mechanism as defined in claim 1, wherein the limiting member is a sliding rail, the sliding rail is disposed on the lens along the second direction, and when the first rack moves along the first direction, the first rack drives the moving plate to move along the second direction on the sliding rail, so as to drive the lens to move along the second direction; when the first rack moves in the reverse direction of the first direction, the first rack drives the moving plate to move in the reverse direction of the sliding rail in the second direction so as to drive the lens to move in the reverse direction of the second direction.
4. The adjustment mechanism of claim 3, further comprising a first guide slot and a first guide post, wherein the first guide slot is disposed in one of the first rack and the moving plate, the first guide post is disposed in the other of the first rack and the moving plate, and when the first rack moves along the first direction, the first guide slot cooperates with the first guide post to move the moving plate along the second direction; when the first rack moves reversely along the first direction, the first guide groove is matched with the first guide post to enable the moving plate to move reversely along the second direction on the sliding rail.
5. The adjustment mechanism of claim 4, wherein the first direction is perpendicular to the second direction, and an angle between the first guide slot and the first direction is equal to an angle between the first guide slot and the second direction.
6. The adjustment mechanism of claim 1, further comprising a second rack and a second gear, the second rack being coupled to the lens, the second gear acting on the second rack to drive the second gear to move along the first direction, the second rack to drive the lens to move along the first direction; the second gear is driven reversely to drive the second rack to move reversely along the first direction, so that the second rack drives the lens to move reversely along the first direction.
7. The adjustment mechanism of claim 6, further comprising a second guide slot and a second guide post, wherein the second guide slot is disposed in one of the second rack and the lens, the second guide post is disposed in the other of the second rack and the lens, and when the second rack moves along the first direction, the second guide slot and the second guide post cooperate to move the lens along the first direction; when the second rack moves along the reverse direction of the first direction, the second guide groove and the second guide post cooperate to enable the lens to move along the reverse direction of the first direction.
8. The adjusting mechanism as recited in claim 6, further comprising a base having a first surface and a third surface, the first surface being connected to the third surface, the third surface being parallel to the light-emitting surface of the lens, the second gear being disposed on the first surface of the base, the second rack including a third side plate and a fourth side plate, the third side plate being connected to the fourth side plate, the third side plate being attached to the first surface of the base, the fourth side plate being attached to the third surface of the base, when the second gear is driven, the second gear driving the third side plate to move in the first direction relative to the first surface of the base and the second gear driving the fourth side plate to move in the first direction relative to the third surface of the base, the lens being moved in the first direction; when the second gear is driven reversely, the second gear drives the third side plate to move reversely along the first direction relative to the first surface of the base, and the second gear drives the fourth side plate to move reversely along the first direction relative to the third surface of the base, so that the lens moves reversely along the first direction.
9. A lens, the lens comprising:
a lens body;
the adjusting mechanism of any one of claims 1 to 8, disposed on the lens body, and driving the adjusting mechanism to move the lens in the first direction or the second direction.
10. A projection device, comprising: the lens of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010220256.9A CN113448146B (en) | 2020-03-25 | 2020-03-25 | Adjusting mechanism, lens and projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010220256.9A CN113448146B (en) | 2020-03-25 | 2020-03-25 | Adjusting mechanism, lens and projection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113448146A CN113448146A (en) | 2021-09-28 |
| CN113448146B true CN113448146B (en) | 2024-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010220256.9A Active CN113448146B (en) | 2020-03-25 | 2020-03-25 | Adjusting mechanism, lens and projection device |
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| US6909560B2 (en) * | 2003-10-15 | 2005-06-21 | Sheng-Feng Lin | Projection lens shifting mechanism |
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| CN113448146A (en) | 2021-09-28 |
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