CN113448146A - Adjusting mechanism, lens and projection device - Google Patents
Adjusting mechanism, lens and projection device Download PDFInfo
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- CN113448146A CN113448146A CN202010220256.9A CN202010220256A CN113448146A CN 113448146 A CN113448146 A CN 113448146A CN 202010220256 A CN202010220256 A CN 202010220256A CN 113448146 A CN113448146 A CN 113448146A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 54
- 230000009471 action Effects 0.000 claims abstract description 21
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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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- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention provides an adjusting mechanism, a lens and a projection device, wherein the adjusting mechanism comprises a movable plate, a first rack, a first gear and a limiting piece, the movable plate is connected with the lens, the first rack is connected with the movable plate, the first gear acts on the first rack, the limiting piece acts on the movable plate to enable the movable 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 movable 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 part to drive the lens to move reversely along the second direction, and the first direction is different from the second direction.
Description
Technical Field
The present disclosure relates to adjusting mechanisms, lenses, and projection apparatuses, and particularly to an adjusting mechanism for adjusting movement of a lens, and a projection apparatus.
Background
At present, the general way of adjusting the position of the lens is to use a screw and a bevel gear in combination to move the lens in the vertical direction along with the screw, and to achieve the movement of the lens in the horizontal direction by the steering of the bevel gear. Such designs require a relatively large and complex mechanism drive design-the intimate screws and bevel gears are expensive and inefficient, and in addition, such adjustment mechanisms are complex to assemble.
The existing lens moves in the vertical direction, generally adopting the matching combination of a screw and a spring, and the lens moves in the vertical direction through the screw thread of the screw. Because the thread angle of the screw rod is small, 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 take the moving force of the screw into consideration, the screw is arranged at the center of the lens, so that the occupied space of the whole adjusting mechanism is large, and the mechanism volume of the whole adjusting mechanism cannot be reduced.
Therefore, there is a need to design a new adjustment mechanism, a new lens barrel and a new projection apparatus 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 using simple and cheap components.
To achieve the above object, the present invention provides an adjusting mechanism for adjusting a lens barrel, comprising: a moving plate 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; the limiting piece acts on the moving plate to enable the moving plate to move in a limited manner; 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 movable plate to move along a 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 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, 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 having a first surface and a second surface, the first surface is connected to the second surface, the first surface is parallel to the light emergent surface of the lens, the first gear is arranged on the first surface of the base, the movable 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 movable plate, the second side plate is attached to the first surface of the base, and 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 movable plate, so that the movable plate moves along the 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 driven reversely, the first gear drives the first side plate to move reversely along the first direction relative to the first surface of the base and the second side plate relative to the moving plate, so that the moving plate moves reversely along the second direction relative to the second surface of the base under the action of the limiting piece to drive the lens to move reversely along the second direction.
Preferably, the limiting member is a slide rail, the slide 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 slide 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 movable plate to move in the reverse direction of the second direction on the slide rail, so as to drive the lens to move in the reverse direction of the second direction.
Preferably, the slide rail further comprises a first guide groove and a first guide column, the first guide groove is arranged on one of the first rack and the moving plate, the first guide column is arranged on the other of the first rack and the moving plate, and when the first rack moves along the first direction, the first guide groove and the first guide column are matched to enable the moving plate to move along the second direction on the slide rail; when the first rack moves in the reverse direction of the first direction, the first guide groove and the first guide column are matched to enable the moving plate to move in the reverse direction of the sliding rail in the second direction.
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 driving device further comprises a second rack and a second gear, the second rack is connected with the lens, the second gear acts on the second rack, and drives 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 in a reverse direction to drive the second rack to move in the reverse direction of the first direction, so that the second rack drives the lens to move in the reverse direction of the first direction.
Preferably, the lens driving device further comprises a second guiding slot and a second guiding column, the second guiding slot is disposed in one of the second rack and the lens, the second guiding column is disposed in the other of the second rack and the lens, and when the second rack moves along the first direction, the second guiding slot and the second guiding column 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 column are matched to enable the lens to move along the reverse direction of the first direction.
Preferably, the adjusting mechanism further includes a base, the base has a first surface and a third surface, the first surface is connected to the third surface, the third surface is parallel to the light emitting surface of the lens, the second gear is disposed on the first surface of the base, the second rack includes a third side plate and a fourth side plate, the third side plate is connected to 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, 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 fourth side plate to move along the first direction relative to the third surface of the base, so that the lens moves along the first direction; when the second gear is driven in the reverse direction, the second gear drives the third side plate and the fourth side plate to move in the reverse direction of the first direction relative to the first surface of the base and the third surface of the base, so that the lens moves in the reverse direction of the first direction.
The present invention also provides a lens barrel, characterized in that the lens barrel comprises: a lens body; the adjusting mechanism is disposed 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 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 part to drive the lens to move reversely along the second direction, and the first direction is different from the second direction.
Drawings
FIG. 1 is a schematic perspective view of an adjusting mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of another perspective of an adjustment mechanism according to an embodiment of the present invention;
fig. 3 is a schematic front view of an adjusting mechanism according to an embodiment of the invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, fig. 1 is a schematic perspective view of an adjusting mechanism according to an embodiment of the invention. The adjusting mechanism 100 provided by the embodiment of the invention is used for adjusting a lens 101, and the adjusting mechanism 100 includes 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, and the limiting piece 4 acts on the moving plate 1 to make the moving plate 1 move in a limited manner, when the first gear 3 is driven, the first gear 3 drives the first rack 2 to move along a first direction, 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 reversely, 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 to drive the lens 101 to move in the reverse direction of the second direction 1002, wherein the first direction 1001 is different from the second direction 1002, and thus, the lens can be adjusted in the horizontal direction and the vertical direction by simple and cheap components.
Referring to fig. 1, the adjusting mechanism 100 further includes a base 102, and the structures and positional relationships of the moving plate 1, the first rack 2, the first gear 3, the limiting member 4, the base 102 and the lens 101 are described below. For convenience of illustration, a spatial coordinate system is established, 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 connected with the second surface 1022 and the third surface 1023 respectively. The lens 101 penetrates 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 guiding column 51 and a first protruding column 13, 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 guiding column is disposed on the moving plate 1 in a protruding manner along the third direction 1003, and the first protruding column 13 is disposed on the moving plate 1 in a protruding manner along the second direction 1002. The moving plate 1 is attached to the second surface 1022 of the base 102, the lens 101 penetrates through the opening 11 of the moving plate 1 along the third direction 1003, and the moving plate 1 moves limitedly along the second direction 1002 or the reverse 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 guiding 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 through the first rack 2 along a second direction 1002, and the first guiding groove 52 penetrates through the first rack 2 along a third direction 1003. The first protruding column 13 of the moving plate 1 is disposed through the first slot 22 of the first rack 2, the first guiding column 51 of the moving plate 1 is disposed through the first guiding slot 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, 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 low in cost in practical applications, so that the adjusting mechanism 100 is low in cost and easy to assemble. The first gear 3 may be a set of reduction gears or a single gear, as the case may be, without being limited thereto. The adjusting mechanism 100 further includes a first knob pivotally connected to the first gear 3, and an operator rotates the first knob to rotate the first gear 3, which is not limited to this case.
Referring to fig. 1, the limiting member 4 is disposed on the base 102 along the second direction 1002, the limiting member 4 is disposed through the through hole 12 of the moving plate 1, and the limiting member 4 limits the moving direction of the moving plate 1 to enable the moving plate 1 to move along the second direction 1002 or in the reverse direction of the second direction 1002. In a specific implementation, the limiting member 4 is a slide rail 41, the slide 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 on the slide 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 along the first direction 1001, the first rack 2 drives the moving plate 1 to move in the reverse direction along the second direction 1002 on the slide rail 41, so as to drive the lens 102 to move in the reverse direction along the second direction 1002, and the limiting member 4 is not limited to the slide rail 41, as the case may be.
Referring to fig. 2, fig. 2 is a schematic view of another view angle of the adjusting mechanism according to an embodiment of the invention. The adjustment mechanism 100 further includes a second rack 6, 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 has a second tooth 61, a third side plate 603, a fourth side plate 604, a second groove 62 and a second guiding groove 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 groove 62 penetrates through the second rack 6 along the second direction 1002, and the second guiding groove 81 penetrates through the second rack 6 along the third direction 1003. The second rack 6 moves in the first direction 1001 or the reverse direction of the first direction 1001. The base 102 further includes a second protrusion 1024, the second protrusion 1024 is disposed on the first surface 1021 of the base 102 along the second direction 1002, and the second protrusion 1024 penetrates 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 low in cost in practical applications, so that the adjusting mechanism 100 is low in cost and easy to assemble. The second gear 3 may be a set of reduction gears or a single gear, as the case may be, without being limited thereto. The adjusting mechanism 100 further includes a first knob pivotally connected to the first gear 3, and an operator rotates the first knob to rotate the first gear 3, which is not limited to this case.
Referring to fig. 1 and 2, the lens 101 includes a second guiding column 82, the second guiding column 82 is convexly disposed on the lens 101 along a third direction 1003, the second guiding column 82 is disposed through the second guiding 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 adjusting mechanism 100 further includes a vibrating member 9, the vibrating member 9 acts on the lens 101, and when the lens 101 moves, the lens 101 moves in a vibrating manner. In practical implementation, the vibrating element 9 may be a motor, and drives the lens 101 to vibrate when driving the first gear 3 or the second gear 7, so that an operator can feel the movement of the lens 101 when driving the first gear 3 or the second gear 7, which is not limited to this case.
In the embodiment of the present 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 to move in the reverse direction 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 in the reverse direction along the second direction 1002 relative to the second surface 1022 of the base 102 under the action of the stopper 4 to drive the lens 101 to move in the reverse direction along the second direction 1002.
In an embodiment of the present invention, referring to fig. 3, fig. 3 is a schematic front view of 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 included angle between the first guiding groove 52 and the first direction 1001 is a first included angle a1, the included angle between the first guiding groove 52 and the second direction 1002 is a second included angle a2, and the first included angle a1 is equal to the second included angle a 2. In a plane formed by the first direction 1001 and the second direction 1002, the first guide groove 52 is at 45 °, and when the first rack 2 moves a first distance in the first direction 1001, the moving plate 1 moves a second distance in the second direction 1002, where the first distance is equal to the second distance.
In the embodiment of the present invention, referring to fig. 1, the first guiding slot 52 is disposed on one of the first rack 2 and the moving plate 1, and the first guiding column 51 is disposed on the other of the first rack 2 and the moving plate 1, when the first rack 2 moves along the first direction 1001, the first guiding slot 52 and the first guiding column 51 cooperate to enable the moving plate 1 to move 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 guiding slot 52 cooperates with the first guiding column 51 to enable the moving plate 1 to move in the reverse direction of the second direction 1002 under the action of the limiting member 4.
In the embodiment of the 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 in the reverse direction to drive the second rack 6 to move in the reverse direction of the first direction 1001, so that the second rack 6 drives the lens 101 to move in the reverse direction of 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 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 third surface 1023 of the base 102, so that the lens 101 moves in the reverse direction of the first direction 1001.
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, and the second guiding column 82 is disposed on the other of the second rack 6 and the lens 101, when the second rack 6 moves along the first direction 1001, the second guiding groove 81 and the second guiding column 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 piece 4, and the lens 101 is driven 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 lens 101 is moved by driving the first gear 2 and the second gear 7, 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 includes a lens body 1011 and the above-mentioned adjusting mechanism 100, the adjusting mechanism 100 is disposed 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, according to the adjusting mechanism, the lens and the projection apparatus provided by the present invention, the adjusting mechanism is used for adjusting the lens, the adjusting mechanism includes a moving plate, a first rack, a first gear and a limiting member, the moving plate is connected to the lens, the first rack is connected to the moving plate, the first gear acts on the first rack, the limiting member acts on the moving plate to make the moving plate move limitedly, 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 member, 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 part to drive the lens to move reversely along the second direction, and the first direction is different from the second direction.
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 preferred embodiments of the present invention and should not be construed as limiting the invention. The scale in the schematic drawings does not represent the scale of actual components for the sake of clarity in describing the required components.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. An adjustment mechanism for adjusting a lens, the adjustment mechanism comprising:
a moving plate 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 limitedly;
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 movable plate to move along a 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 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 movable plate moves relative to the first rack to drive the lens to move reversely along the second direction, and the first direction is different from the second direction.
2. The adjustment mechanism of claim 1, further comprising 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 movable 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 to move along the second direction relative to the movable plate, so that the movable plate moves along the 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 driven reversely, the first gear drives the first side plate to move reversely along the first direction relative to the first surface of the base and the second side plate relative to the moving plate, so that the moving plate moves reversely along the second direction relative to the second surface of the base under the action of the limiting piece to drive the lens to move reversely along the second direction.
3. The adjusting mechanism of claim 1, wherein the position-limiting member is a slide rail 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 along the slide 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 movable plate to move in the reverse direction of the second direction on the slide rail, so as to drive the lens to move in the reverse direction of the second direction.
4. The adjusting mechanism as claimed in claim 3, further comprising a first guiding slot and a first guiding post, wherein the first guiding slot is disposed on one of the first rack and the moving plate, and the first guiding post is disposed on the other of the first rack and the moving plate, and when the first rack moves along the first direction, the first guiding slot and the first guiding post cooperate to move the moving plate along the second direction on the slide rail; when the first rack moves in the reverse direction of the first direction, the first guide groove and the first guide column are matched to enable the moving plate to move in the reverse direction of the sliding rail in the second direction.
5. The adjusting mechanism as claimed in claim 4, wherein the first direction is perpendicular to the second direction, and an angle between the first guiding groove and the first direction is equal to an angle between the first guiding groove and the second direction.
6. The adjusting mechanism of claim 1, further comprising a second rack and a second gear, wherein the second rack is connected to the lens, and the second gear acts on the second rack to drive the second gear to move the second rack along the first direction, so that the second rack drives the lens to move along the first direction; the second gear is driven in a reverse direction to drive the second rack to move in the reverse direction of the first direction, so that the second rack drives the lens to move in the reverse direction of the first direction.
7. The adjusting mechanism as claimed in claim 6, further comprising a second guiding slot and a second guiding post, wherein the second guiding slot is disposed on one of the second rack and the lens, and the second guiding post is disposed on the other of the second rack and the lens, and when the second rack moves along the first direction, the second guiding slot and the second guiding 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 column are matched to enable the lens to move along the reverse direction of the first direction.
8. The adjusting mechanism as claimed in claim 6, wherein the adjusting mechanism further comprises a base, the base has a first surface and a third surface, the first surface is connected to the third surface, the third surface is parallel to the light emitting surface of the lens, the second gear is disposed on the first surface of the base, the second rack includes a third side plate and a fourth side plate, the third side plate is connected to 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, 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 fourth side plate relative to the third surface of the base, so that the lens moves along the first direction; when the second gear is driven in the reverse direction, the second gear drives the third side plate and the fourth side plate to move in the reverse direction of the first direction relative to the first surface of the base and the third surface of the base, so that the lens moves in the reverse direction of the first direction.
9. A lens barrel, characterized in that it comprises:
a lens body;
the adjusting mechanism of any one of claims 1 to 8, disposed on the lens body, for driving the adjusting mechanism to move the lens along the first direction or the second direction.
10. A projection device, comprising: the lens barrel as claimed in 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 true CN113448146A (en) | 2021-09-28 |
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| CN109634033A (en) * | 2018-11-30 | 2019-04-16 | 苏州佳世达光电有限公司 | Imaging device |
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| US20050083585A1 (en) * | 2003-10-15 | 2005-04-21 | Nexgen Mediatech Inc. | Projection lens shifting mechanism |
| CN101373242A (en) * | 2007-08-20 | 2009-02-25 | 中强光电股份有限公司 | Lens adjusting apparatus |
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| CN113448146B (en) | 2024-03-22 |
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