CN210924164U - Lens adjusting device and projection equipment - Google Patents
Lens adjusting device and projection equipment Download PDFInfo
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- CN210924164U CN210924164U CN201921658983.2U CN201921658983U CN210924164U CN 210924164 U CN210924164 U CN 210924164U CN 201921658983 U CN201921658983 U CN 201921658983U CN 210924164 U CN210924164 U CN 210924164U
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Abstract
The utility model provides a lens adjusting device and a projection device, wherein the lens adjusting device comprises a first adjusting bracket and a second adjusting bracket; the first adjusting bracket comprises a lens bracket, a first guide post and a second guide post; the second adjusting bracket comprises a movable bracket, a first limiting groove formed by sinking one side of the movable bracket and a first boss extending convexly from the other side of the movable bracket; the first guide post is fixedly clamped in the first limiting groove; the second guide column is connected with the first boss; the lens bracket is respectively supported on the first guide post and the second guide post and forms sliding connection, so that the lens bracket can slide relative to the second adjusting bracket along a first direction; the relative position of the second guide post and the first boss when the second guide post is not completely fastened is adjusted through the lens support, so that the parallelism between the second guide post and the first guide post is adjusted. Compared with the prior art, the utility model discloses a camera lens adjusting device and projection equipment position control's reliability is high.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the field of optical technology, especially, relate to a camera lens adjusting device and projection equipment.
[ background of the invention ]
With the continuous development of projection devices, people have higher and higher requirements on the projection quality of the projection devices. In the projection apparatus, the lens is often fixed on the lens adjusting device, and the relative position or angle of the lens is adjusted by adjusting the lens adjusting device, so as to adjust the projection quality of the projection image. Therefore, the level of the adjustment accuracy of the lens adjustment device directly affects the projection quality of the projection picture.
The lens adjusting device comprises an adjusting assembly, the adjusting assembly comprises a first adjusting frame and a second adjusting frame which are sequentially connected, the first adjusting frame comprises a first body part and two guide posts which are respectively arranged on two opposite sides of the first body part at intervals and extend along a first direction, the first body part is supported on the two guide posts and is in sliding connection with the two guide posts, and a first adjusting meter is in sliding connection with the second adjusting frame along the first direction.
However, in the related art, it is difficult to adjust the parallelism between the two guide posts during the assembly process, so that the parallelism between the two guide posts after installation is low, and the adjustment process easily causes the conditions of sudden change, discontinuity or blocking between the adjustment bracket and the second adjustment bracket, thereby reducing the reliability of position adjustment.
Therefore, there is a need to provide a new lens adjustment device and a projection apparatus to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a camera lens adjusting device and projection equipment, this camera lens adjusting device can carry out the depth of parallelism in assembling process and adjust, has solved the problem that camera lens adjusting device's position control reliability is low.
To achieve the above object, the utility model provides a lens adjusting device, it includes:
the first adjusting bracket comprises a lens bracket, a first guide post and a second guide post, wherein the first guide post and the second guide post are respectively arranged on two opposite sides of the lens bracket at intervals and extend along a first direction;
the second adjusting bracket comprises a moving bracket, a first limiting groove formed by sinking one side of the moving bracket and a first boss extending from the other side of the moving bracket in a protruding manner;
the first guide post is clamped in the first limiting groove and fixed; the second guide column is connected to the first boss; the lens bracket is respectively supported on the first guide post and the second guide post and forms sliding connection with the first guide post and the second guide post, so that the lens bracket can slide relative to the second adjusting bracket along the first direction;
the relative position of the second guide post and the first boss when the second guide post and the first boss are not completely fastened is adjusted through the lens support, so that parallelism adjustment between the second guide post and the first guide post is achieved.
Furthermore, the two first limit grooves are arranged at the same side of the movable support at intervals; the first guide post comprises a first guide section and two first fixing sections which are convexly extended from two opposite ends of the first guide section, and the two first fixing sections are respectively clamped and fixed in the two first limiting grooves; the second guide column comprises a second fixing section and two second guide sections which are convexly extended from two opposite ends of the second fixing section, and the second fixing section is connected to the first boss; the lens bracket is respectively supported on the first guide section and the two second guide sections; the parallelism adjustment between the second guide post and the first guide post is realized by adjusting the relative position of the second fixing section and the first boss.
Furthermore, one end of each first fixing section, which is connected with the bottom surface of the first limiting groove, is a plane, one end of each second fixing section, which is connected with the top surface of the first boss, is a plane, and the bottom surface of the first limiting groove and the top surface of the first boss are located in the same plane.
Further, the first adjusting bracket further comprises a first screw and a second screw; each first fixing section is provided with a first through hole penetrating through the first fixing section, a first threaded hole is formed in each first limiting groove, and the first screw penetrates through the first through hole to be connected with the first threaded hole, so that the first fixing section is fixed in the first limiting groove; each second fixing section is provided with a second through hole penetrating through the second fixing section, each first boss is provided with a second threaded hole, and the second screw penetrates through the second through hole to be connected with the second threaded hole, so that the second fixing section is pressed on the first boss.
Further, the lens holder comprises a lens holder body, and a first supporting part and a second supporting part which are respectively fixed on two opposite sides of the lens holder body and are in a hollow structure; the first supporting part penetrates through two first supporting holes in the first direction, each first supporting hole is provided with a first sliding sleeve, and the first supporting part is positioned between the two first limiting grooves and is connected with the first guide section in a sliding mode through the two first sliding sleeves; the second support part penetrates through two second support holes in the second support part along the first direction, each second support hole is provided with a second sliding sleeve, the second support part is connected with the second guide section in a sliding mode through the two second sliding sleeves corresponding to the second support part, and the first boss is contained in the second support part.
Furthermore, the lens adjusting device further comprises a first driving mechanism fixed on the movable support and connected with the lens support, and the first driving mechanism drives the lens support to slide relative to the lens support along the first direction.
Further, the lens adjusting device further comprises a fixing bracket;
the fixing support comprises a fixing support body, a second limiting groove formed by sinking one side of the fixing support body and a second boss protruding and extending from the other side of the fixing support body;
the second adjusting bracket further comprises a third guide column and a fourth guide column which are arranged on two opposite sides of the movable bracket at intervals and extend along a second direction, and the third guide column is clamped in the second limiting groove and fixed; the fourth guide column is connected to the second boss; the movable support is respectively supported on the third guide column and the two fourth guide columns and is in sliding connection with the third guide column and the fourth guide columns, so that the movable support can slide relative to the fixed support along the second direction; wherein the first direction is perpendicular to the second direction;
and adjusting the relative position of the fourth guide column and the second boss when the fourth guide column is not completely fastened through the movable bracket so as to realize the adjustment of the parallelism between the fourth guide column and the third guide column.
Furthermore, the two second limit grooves are arranged at the same side of the fixed bracket at intervals; the third guide column comprises a third guide section and two third fixing sections which are convexly extended from two opposite ends of the third guide section, and the two third fixing sections are respectively clamped and fixed in the two second limiting grooves; the fourth guide column comprises a fourth fixing section and two fourth guide sections which are convexly extended from two opposite ends of the fourth fixing section, and the fourth fixing section is connected to the second boss; the movable support is respectively supported on the third guide section and the two fourth guide sections; the parallelism adjustment between the fourth guide column and the third guide column is realized by adjusting the relative position of the fourth fixing section and the second boss.
Furthermore, one end of each third fixing section, which is connected with the bottom surface of the second limiting groove, is a plane, one end of each fourth fixing section, which is connected with the top surface of the second boss, is a plane, and the bottom surface of the second limiting groove and the top surface of the second boss are located in the same plane.
Further, the second adjusting bracket further comprises a third screw and a fourth screw; each third fixing section is provided with a third through hole penetrating through the third fixing section, a third threaded hole is formed in each second limiting groove, and a third screw penetrates through the third through hole to be connected with the third threaded hole, so that the third fixing section is fixed in the second limiting groove; each fourth fixing section is provided with a fourth through hole penetrating through the fourth fixing section, each second boss is provided with a fourth threaded hole, and a fourth screw penetrates through the fourth through hole to be connected with the fourth threaded hole, so that the fourth fixing section is pressed on the second boss.
Further, the movable support comprises a movable support body, and a third supporting part and a fourth supporting part which are fixed on two opposite sides of the movable support body; the third supporting part is provided with a third supporting hole penetrating through the third supporting part along the second direction, two third sliding sleeves are respectively arranged at two opposite ends of the third supporting hole, and the third supporting part is positioned between the two second limiting grooves and is connected to the third guide section through the two third sliding sleeves in a sliding manner; the fourth supporting part is of a hollow structure and is provided with two fourth supporting holes penetrating through the fourth supporting part along the second direction, the second boss is contained in the fourth supporting part, each fourth supporting hole is provided with a fourth sliding sleeve, and each fourth supporting part is connected to the fourth guide section in a sliding mode through the corresponding fourth sliding sleeve.
Furthermore, the lens adjusting device further comprises a second driving mechanism which is fixed on the fixed support body and connected with the movable support, and the second driving mechanism drives the movable support to slide relative to the fixed support along the second direction.
The utility model also provides a projection equipment, it includes camera lens, ray apparatus subassembly and camera lens adjusting device, the fixed bolster is kept away from second adjust support one side with the ray apparatus subassembly is connected, the camera lens is fixed in the camera lens support.
Further, the optical-mechanical assembly comprises an optical machine and an optical-mechanical bottom shell for installing the optical machine; the projection equipment further comprises a plurality of adjustable connecting assemblies used for connecting the optical machine bottom shell and the fixed support, adjusting studs which protrude and extend from positions of the optical machine bottom shell corresponding to the adjustable connecting assemblies, and the fixed support is provided with connecting threaded holes and fifth through holes which are arranged corresponding to the adjustable connecting assemblies; each adjustable connecting assembly comprises a fastening nut, a fastening screw, an adjusting nut and an adjusting spring, the fastening screw is connected to the fixing support through the connecting threaded hole and abuts against the optical machine bottom shell, the fastening nut is in threaded connection with one side, away from the optical machine bottom shell, of the fastening screw and abuts against the fixing support, the adjusting stud penetrates through the fifth through hole and is in threaded connection with the adjusting nut, the adjusting spring is inserted in the adjusting stud, and two opposite ends of the adjusting spring abut against the optical machine bottom shell and the fixing support respectively.
Furthermore, the fixed support and the position corresponding to the adjusting spring are recessed to form a first accommodating groove communicated with the fifth through hole, the optical machine bottom shell is recessed to form a second accommodating groove which forms an accommodating space together with the first accommodating groove, and the adjusting stud and the adjusting spring are respectively accommodated in the accommodating space.
Compared with the prior art, the lens adjusting device of the utility model has the advantages that the first guide post is clamped in the first limit groove and fixed, the second guide post is connected with the first boss, the structure is arranged in the assembling process, the first guide post is completely clamped and fixed in the first limit groove, the second guide post is connected with the first boss and kept in an incomplete fastening state, the relative position between the second guide post and the first boss when the second guide post and the first boss are not completely fastened is adjusted through the lens bracket, the parallelism adjustment between the second guide post and the first guide post is realized, the parallelism between the second guide post and the first guide post is effectively improved, the problem that the first guide post and the second guide post are not parallel is avoided, the conditions of abnormal movement mutation, discontinuity or blocking and the like when the lens bracket slides relatively on the first guide post and the second guide post in the adjusting process are avoided, the smoothness of adjustment is effectively improved, and the reliability of position adjustment is guaranteed.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic perspective view of a lens adjusting device according to the present invention;
fig. 2 is an exploded view of a part of a three-dimensional structure of the lens adjusting device of the present invention;
fig. 3 is a partially exploded perspective view of the first adjusting bracket and the second adjusting bracket of the present invention;
fig. 4 is an assembly view of a part of the three-dimensional structure of the first adjusting bracket and the second adjusting bracket of the present invention;
fig. 5 is an exploded view of a part of the three-dimensional structure of the second adjusting bracket and the fixing bracket of the present invention;
fig. 6 is an assembly view of a part of the three-dimensional structure of the second adjusting bracket and the fixing bracket of the present invention;
fig. 7 is a schematic perspective view of a projection apparatus according to the present invention;
fig. 8 is an exploded view of a part of a three-dimensional structure of the projection apparatus of the present invention;
fig. 9 is a schematic view of the structural connection of the bare engine bottom case, the fixing bracket and the adjustable connecting assembly of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a lens adjusting apparatus 100, which includes a first adjusting bracket 1 and a second adjusting bracket 2 connected in sequence.
The first adjusting bracket 1 is mounted on the second adjusting bracket 2 for adjusting the projection position of the projection apparatus, and the mounting accuracy of the first adjusting bracket 1 mounted on the second adjusting bracket 2 determines the projection quality of the projection apparatus, and the following description will be provided with reference to the accompanying drawings for describing the specific structure of each component of the lens adjusting apparatus 100:
as shown in fig. 2 to 4, in the present embodiment, the first adjusting bracket 1, which is a connecting member between the lens and the lens adjusting apparatus 100, is provided between the fixed bracket 3 and the lens, and the parallelism of the installation thereof directly affects the reliability of the lens adjustment by the entire lens adjusting apparatus 100.
Specifically, the first adjusting bracket 1 includes a lens bracket 11 for fixedly supporting a lens, and a first guide post 12 and a second guide post 13 respectively disposed at two opposite sides of the lens bracket 11 at an interval, where it is noted that the extending direction of the first guide post 12 and the second guide post 13 is a first direction (i.e., an X-axis direction), and the first direction is one of degrees of freedom related to adjusting a projection position of the projection apparatus.
The second adjusting bracket 2 includes a moving bracket 21, a first limit groove 22 formed by recessing one side of the moving bracket 21, and a first boss 23 protrudingly extending from the other side of the moving bracket 21.
The first guide post 12 is clamped in the first limit groove 22 and fixed; the second guide post 13 is connected to the first boss 23; the lens holder 11 is supported by the first guide post 12 and the second guide post 13 respectively and forms a sliding connection with both the first guide post 12 and the second guide post 13, so that the lens holder 11 can slide relative to the moving holder 21 along the first direction.
Further, the number of the first limiting grooves 22 is not limited, and the first limiting grooves 22 are specifically arranged according to the actual design condition, in this embodiment, the number of the first limiting grooves 22 is two, and the two first limiting grooves 22 are arranged at the same side of the movable support 21 at intervals.
The first guiding column 12 includes a first guiding section 121 and two first fixing sections 122 protruding from two opposite ends of the first guiding section 121, and the two first fixing sections 122 are respectively fixed in the two first limiting grooves 22.
The second guiding column 13 includes a second fixing section 131 and two second guiding sections 132 protruding from two opposite ends of the second fixing section 131, and the second fixing section 131 is connected to the first boss 23.
The lens holder 11 is supported by the first guide section 121 and the two second guide sections 132 and forms a sliding connection with both the first guide section 121 and the two second guide sections 132, and the lens holder 11 is slidably connected with respect to the moving holder 21 along the first direction.
Further, the lens holder 11 includes a lens holder body 111, and a first supporting portion 112 and a second supporting portion 113 fixed on two opposite sides of the lens holder body 111 and having a hollow structure.
The first supporting portion 112 penetrates through two first supporting holes (not shown) along a first direction, each first supporting hole is provided with a first sliding sleeve 1120, and the first supporting portion 112 is located between the two first limiting grooves 22 and is slidably connected to the first guiding section 121 through the two first sliding sleeves 1120.
The second supporting portion 113 penetrates two second supporting holes (not shown) along the first direction, each second supporting hole is provided with a second sliding sleeve 1130, the second supporting portion 113 is slidably connected to the second guiding section 132 through the two corresponding second sliding sleeves 1130, and the first boss 23 is accommodated in the second supporting portion 113.
In the structure, the first adjusting bracket 1 adjusts the relative position of the second guide post 13 and the first boss 23 when the second guide post is not completely fastened through the lens bracket 11, so as to realize the adjustment of the parallelism between the second guide post 13 and the first guide post 12; more specifically, the first guiding column 12 is respectively clamped in the two first limiting grooves 22 through the two first fixing sections 122 to form a fixing, the second guiding column 13 is connected to the first boss 23 through the second fixing section 131, the lens holder 11 is respectively supported on the first guiding section 121 and the two second guiding sections 132, and during the assembling process, the first fixing section 122 can be clamped and fixed in the first limiting grooves 22, at this time, the first guiding column 12 is completely fastened on the two first limiting grooves 22, and then, the second guiding column 13 is connected to the first boss 23 and keeps an incompletely fastened state, that is, the second guiding column 13 is incompletely fastened on the first boss 23, the relative position of the incompletely fastened second fixing section 131 is driven to perform micro-motion relative to the first boss 23 by sliding the lens holder 11 back and forth, so as to adjust the parallelism between the second guiding column 13 and the first guiding column 12, the second guide post 13 is self-adaptively adjusted to be parallel to the first guide post 12, and finally the second guide post 13 is completely fastened on the first boss 23 to complete the assembly of the first adjusting bracket 1, so that the parallelism between the second guide post 13 and the first guide post 12 is effectively improved, the problem that the first guide post 12 and the second guide post 13 are not parallel is avoided, the conditions of abnormal change, discontinuity or blocking and the like when the lens bracket 11 slides relatively on the first guide post 12 and the second guide post 13 in the adjusting process are avoided, the smoothness of position adjustment along the first direction is effectively improved, and the reliability and the position adjusting precision of position adjustment along the first direction are ensured.
Preferably, the end of the first fixing section 122 connected to the bottom surface 221 of the first limiting groove 22 is a plane, the end of each second fixing section 131 connected to the top surface 231 of the first boss 23 is a plane, and the bottom surface 221 of the first limiting groove 22 and the top surface 231 of the first boss 23 are located in the same plane, so that the first guide post 12 and the second guide post 13 are installed in a coplanar manner, the first guide post 12 and the second guide post 13 are installed in the same plane, the adjustment accuracy of parallelism adjustment is further ensured, and the parallelism between the first guide post 12 and the second guide post 13 is effectively improved.
Preferably, the first adjusting bracket 1 further comprises a first screw 14 and a second screw 15. Each first fixing section 122 is provided with a first through hole (not shown) penetrating through the first fixing section, a first threaded hole (not shown) is arranged in each first limiting groove 22, the first screw 14 penetrates through the first through hole to be connected with the first threaded hole, so that the first fixing section 122 is fixed in the first limiting groove 22, and the aperture of the first through hole is larger than the diameter of the first screw 14; each second fixing section 131 is provided with a second through hole (not shown) penetrating through the second fixing section, each first boss 23 is provided with a second threaded hole (not shown), the second screw 15 penetrates through the second through hole to be connected with the second threaded hole, so that the second fixing section 131 is pressed on the first boss 23, and the aperture of the second through hole is larger than the diameter of the second screw 15. That is, a certain gap is formed between the first screw 14 and the first through hole, and a certain gap is also formed between the second screw 35 and the second through hole, and this setting is equivalent to that when mounting, a certain movement space is reserved for the first guide post 12 and the second guide post 13, which effectively improves the accuracy of adjusting the parallelism between the first guide post 12 and the second guide post 13, and in practical application, the gap can be specifically set according to the requirement of actual accuracy, so that the gap reaches the micrometer level, thereby further improving the accuracy of the parallelism between the first guide post 12 and the second guide post 13.
Referring to fig. 1, it should be noted that, in practical applications, the lens adjusting apparatus 100 needs to be mounted on the projection device, and in this embodiment, the lens adjusting apparatus 100 further includes a fixing bracket 3 for connecting the lens adjusting apparatus 100 and the projection device, and the second adjusting bracket 2 is supported on a side of the fixing bracket 3 away from the projection device; of course, in order to increase the position adjustment range of the lens adjusting apparatus 100, as a more preferred embodiment, the second adjusting bracket 2 is slidably connected with respect to the fixed bracket 3 along the second direction (i.e. the Y-axis direction), and at this time, both the first adjusting bracket 2 and the second adjusting bracket 3 are used as position adjusting components to adjust the position of the lens in the first direction and/or the second direction, so that the performance of the position adjustment of the lens adjusting apparatus 100 is effectively improved, the range of the position adjustment is increased, and the bidirectional adjustment of the projection position of the projection device is realized.
Specifically, as shown in fig. 2 and 5-6, in the present embodiment, the fixing bracket 3 includes a fixing bracket body 31, a second limiting groove 32 formed by recessing one side of the fixing bracket body 31, and a second boss 33 protruding from the other side of the fixing bracket body 31.
The second adjusting bracket 2, which is a connecting member between the first adjusting bracket 1 and the fixed bracket 3, is disposed between the fixed bracket 3 and the lens, and the parallelism of the installation thereof directly affects the reliability of the entire lens adjusting apparatus 100 in adjusting the lens.
The second adjusting bracket 2 further comprises a third guiding column 24 and a fourth guiding column 25 respectively arranged at two opposite sides of the moving bracket 21 at intervals, wherein it should be noted that the extending direction of the third guiding column 24 and the fourth guiding column 25 is a second direction (i.e. Y-axis direction) which is one of the degrees of freedom related to adjusting the projection position of the projection device, and the second direction is perpendicular to the first direction.
The third guide column 24 is clamped in the second limit groove 32 and fixed; the fourth guide column 25 is connected to the second boss 33; the moving bracket 21 is respectively supported by the third guide post 24 and the two fourth guide posts 25 and forms a sliding connection with the third guide post 24 and the fourth guide post 25, so that the moving bracket 21 can slide relative to the fixed bracket 3 along the second direction.
Further, the number of the second limiting grooves 32 is not limited, and the second limiting grooves 32 are specifically arranged according to actual design conditions, in this embodiment, the number of the second limiting grooves 32 is two, and the two second limiting grooves 32 are arranged on the same side of the fixing bracket 3 at intervals.
The third guiding column 24 includes a third guiding section 241 and two third fixing sections 242 protruding from two opposite ends of the third guiding section 241, and the two third fixing sections 242 are respectively fixed in the two second limiting grooves 32.
The fourth guide post 25 includes a second fixing section 251 and two second guide sections 252 protruding from opposite ends of the second fixing section 251, wherein the second fixing section 251 is connected to the second boss 33.
The moving bracket 21 is supported by the third guide section 241 and the two second guide sections 252 respectively and forms a sliding connection with the third guide section 241 and the second guide section 252, and the moving bracket 21 is connected with the fixed bracket 3 in a sliding manner along the second direction.
Further, the moving bracket 21 includes a moving bracket body 211, and a third support portion 212 and a fourth support portion 213 fixed to opposite sides of the moving bracket body 211; the third supporting portion 212 has a third supporting hole (not shown) penetrating through it along the second direction, two third sliding sleeves 2120 are respectively disposed at two opposite ends of the third supporting hole, the third supporting portion 212 is located between the two second limiting grooves 32 and is slidably connected to the third guiding section 241 through the two third sliding sleeves 2120; the fourth supporting portion 213 is hollow and has two fourth supporting holes (not shown) penetrating therethrough along the second direction, the second bosses 33 are accommodated in the fourth supporting portion 213, each fourth supporting hole has a fourth sliding sleeve 2130, and each fourth supporting portion 213 is slidably connected to the second guiding section 252 through two corresponding fourth sliding sleeves 2130.
In the above-described structure, the second adjusting bracket 2 adjusts the relative position of the fourth guide post 25 and the second boss 33 when the second boss 33 is not completely fastened by the moving bracket 21, more specifically, the moving bracket 21 is supported by the third guide section 241 and the two fourth guide sections 252, respectively, the second adjusting bracket 2 adjusts the relative position of the fourth fixing section 251 and the second boss 33, to realize the principle of parallelism adjustment between the third guide post 24 and the fourth guide post 25, which substantially adjusts the relative position of the first fixing section 151 and the first boss 23 when not completely fastened with the first adjusting bracket 1 through the lens holder 11, the principle for adjusting the parallelism between the first guide post 12 and the second guide post 13 is the same, and will not be described herein, the structure effectively improves the smoothness of the position adjustment along the second direction, and ensures the reliability and the precision of the position adjustment along the second direction.
Preferably, one end of each third fixing section 242 connected to the bottom surface 321 of the second limiting groove 32 is a plane, one end of each second fixing section 251 connected to the top surface 331 of the second boss 33 is a plane, and the bottom surface 321 of the second limiting groove 32 and the top surface 331 of the second boss 33 are located in the same plane, so that the third guide column 24 and the fourth guide column 25 are installed in a coplanar manner, the third guide column 24 and the fourth guide column 25 are arranged on the same plane, the adjustment accuracy of parallelism adjustment is further ensured, and the parallelism of the third guide column 24 and the fourth guide column 25 is effectively improved.
Preferably, the second adjusting bracket 2 further comprises a third screw 26 and a fourth screw 27. Each third fixing section 242 is provided with a third through hole (not shown) penetrating through the third fixing section, a third threaded hole (not shown) is arranged in each second limiting groove 32, and a third screw 26 penetrates through the third through hole to be connected with the third threaded hole, so that the third fixing section 242 is fixed in the second limiting groove 32, and the aperture of the third through hole is larger than the diameter of the third screw 26; each second fixing section 251 is provided with a fourth through hole (not shown) penetrating through the second fixing section 251, each second boss 33 is provided with a fourth threaded hole (not shown), the fourth screw 27 penetrates through the fourth through hole to be connected with the fourth threaded hole, so that the second fixing section 251 is pressed on the second boss 33, and the diameter of the fourth through hole is larger than that of the fourth screw 27. That is, a certain gap is formed between the third screw 26 and the third through hole, and a certain gap is also formed between the fourth screw 27 and the fourth through hole, and this setting is equivalent to that when mounting, a certain movement space is reserved for the third guide post 24 and the fourth guide post 25, which effectively improves the accuracy of adjusting the parallelism between the third guide post 24 and the fourth guide post 25, and in practical application, the gap can be specifically set according to the requirement of actual accuracy, so that the gap reaches the micrometer level, thereby further improving the accuracy of the parallelism between the third guide post 24 and the fourth guide post 25.
Referring to fig. 2, 4 and 6, in practical use, in order to improve the automation of the position adjustment, the lens adjustment device 100 may further include a driving mechanism.
As a more preferred embodiment, the lens adjustment apparatus 100 further includes a first drive mechanism 4 and a second drive mechanism 5.
As shown, the first driving mechanism 4 is fixed to the moving frame 21 and connected to the lens holder 31, and is used for driving the lens holder 31 to slide relative to the moving frame 21 along a first direction (i.e., the X-axis direction).
And a second driving mechanism 5 fixed to the fixed bracket body 11 and connected to the movable bracket 21 for driving the movable bracket 21 to be slidably connected in a second direction (i.e., Y-axis direction) with respect to the fixed bracket 3.
It should be noted that the structural form of the first driving mechanism 4 and the second driving mechanism 5 is not limited, and may be any one of a sliding cylinder or a driving motor, which may be specifically selected according to the actual design requirement, for example, in this embodiment, the first driving mechanism 4 and the second driving mechanism 5 are both driving motors with threads on output shafts, correspondingly, the first adjusting bracket 1 includes a second threaded connector 16 fixed on the lens bracket 31 and in threaded connection with the output shaft of the second driving mechanism 5, and the second adjusting bracket 2 includes a first threaded connector 28 fixed on the moving bracket 21 and in threaded connection with the output shaft of the first driving mechanism 4.
Referring to fig. 2 and fig. 7-9, the present invention further provides a projection apparatus 200, which includes a lens 1a, an optical module 2a and the lens adjusting device 100 of the present invention, wherein the fixing bracket 3 is connected to the optical module 2a at a side away from the second adjusting bracket 2, and the lens 1a is fixed to the lens bracket 11.
In the above-described structure, the position adjustment in the first direction and the second direction is two degrees of freedom with respect to the position adjustment of the projection screen, and due to the use of the lens adjusting device 100, the reliability of the position adjustment in the first direction and/or the second direction in which the lens 1a is mounted is ensured, thereby enabling the projection quality of the projection apparatus 200 to be high.
It should be noted that, during the adjustment process of the position of the projection screen, the projection apparatus 200 has a shake phenomenon, and when the projection apparatus 200 is being installed and lifted, the optical axis of the lens 1a is tilted and the focal length deviation is large.
To solve this problem, preferably, the optical-mechanical assembly 2a includes an optical-mechanical and an optical-mechanical bottom case 20a for mounting the optical-mechanical; the projection apparatus 200 further includes a plurality of adjustable connection assemblies 3a for connecting the optical chassis 20a and the fixing bracket 3, the optical chassis 20a protrudes and extends from positions corresponding to the adjustable connection assemblies 3a to form adjusting studs 201a, and the fixing bracket 3 is provided with a connection threaded hole 301 and a fifth through hole 302 corresponding to the adjustable connection assemblies 3 a.
It is worth mentioning that the number of the adjustable connection assemblies 3a is not limited, and the adjustable connection assemblies can be specifically configured according to the actual design requirement, for example, in the present embodiment, the fixed bracket 3 is rectangular, the adjustable connection assemblies 3a include four adjustable connection assemblies, and the four adjustable connection assemblies 3a are respectively disposed at the positions of four corners of the fixed bracket 3.
Each adjustable connection assembly 3a includes a fastening nut 31a, a fastening screw 32a, an adjusting nut 33a and an adjusting spring 34a, the fastening screw 31a is connected to the fixing bracket 3 through a connection threaded hole 301 and abuts against the optical machine bottom case 20a, the fastening nut 32a is connected to one side of the fastening screw 31a away from the optical machine bottom case 20a in a threaded manner and abuts against the fixing bracket 3, the adjusting stud 201a passes through the fifth through hole 302 and is connected with the adjusting nut 33a in a threaded manner, and the adjusting spring 34a is inserted into the adjusting stud 201a and abuts against and presses against the optical machine bottom case 20a and the fixing bracket 3 at two opposite ends respectively.
In the structure, the adjusting mechanism is formed by the adjusting stud 201a, the adjusting nut 33a and the adjusting spring 34a, a certain distance is reserved between the optical machine bottom shell 20a and the fixed support 3 to be used as three-dimensional adjustment of pitching and axial movement of the lens adjusting support 100, and the pitching angle fine adjustment of the whole lens support base of the lens adjusting device 100 and the fine adjustment along the optical axis direction (namely, the Z-axis direction) of the lens 1a can be realized by comprehensively adjusting the adjusting nut 33a, so that the lens 1a is driven to realize three-dimensional fine adjustment, in addition, the phenomenon of defocusing is effectively avoided, and the projection quality is improved; constitute fastening structure through fastening nut 31a and fastening screw 32a, solve and appear adjusting the abnormal change sudden change or adjust discontinuous condition when adjusting the angle of pitch (being Z axle direction), effectively avoided projection apparatus 200 along the shake problem of optical axis direction, guarantee that the optical axis pitch of camera lens 1a is little with the focus deviation, improve projection quality, increase the stability that ray apparatus drain pan 20a and fixed bolster 3 are connected simultaneously.
Preferably, the fixing bracket 3 and the adjusting spring 34a are recessed to form a first accommodating groove 310 communicated with the fifth through hole 302, the optical machine bottom case 20a is recessed to form a second accommodating groove 202a which encloses an accommodating space 10 together with the first accommodating groove 110, and the adjusting stud 201a and the adjusting spring 34a are respectively accommodated in the accommodating space 10, so that the structural arrangement effectively releases the distance arrangement between the optical machine bottom case 20a and the fixing bracket 3, the overall size of the projection apparatus 200 is smaller, and the space utilization rate is improved; meanwhile, the installation stability of the adjusting spring 34a is improved, the adverse effect of external force on the adjusting spring 34a in the adjusting process is avoided, and the adjusting reliability in the third direction is effectively guaranteed.
Compared with the prior art, the lens adjusting device of the utility model has the advantages that the first guide post is clamped in the first limit groove and fixed, the second guide post is connected with the first boss, the structure is arranged in the assembling process, the first guide post is completely clamped and fixed in the first limit groove, the second guide post is connected with the first boss and kept in an incomplete fastening state, the relative position between the second guide post and the first boss when the second guide post and the first boss are not completely fastened is adjusted through the lens bracket, the parallelism adjustment between the second guide post and the first guide post is realized, the parallelism between the second guide post and the first guide post is effectively improved, the problem that the first guide post and the second guide post are not parallel is avoided, the conditions of abnormal movement mutation, discontinuity or blocking and the like when the lens bracket slides relatively on the first guide post and the second guide post in the adjusting process are avoided, the smoothness of adjustment is effectively improved, and the reliability of position adjustment is guaranteed. And the utility model discloses a projection equipment has used the utility model discloses a camera lens adjusting device for projection equipment's position control's reliability is high, effectively improves projection equipment's projection quality.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (15)
1. A lens adjustment device, characterized by comprising:
the first adjusting bracket comprises a lens bracket, a first guide post and a second guide post, wherein the first guide post and the second guide post are respectively arranged on two opposite sides of the lens bracket at intervals and extend along a first direction;
the second adjusting bracket comprises a moving bracket, a first limiting groove formed by sinking one side of the moving bracket and a first boss extending from the other side of the moving bracket in a protruding manner;
the first guide post is clamped in the first limiting groove and fixed; the second guide column is connected to the first boss; the lens bracket is respectively supported on the first guide post and the second guide post and forms sliding connection with the first guide post and the second guide post, so that the lens bracket can slide relative to the second adjusting bracket along the first direction;
the relative position of the second guide post and the first boss when the second guide post and the first boss are not completely fastened is adjusted through the lens support, so that parallelism adjustment between the second guide post and the first guide post is achieved.
2. The lens adjusting apparatus according to claim 1, wherein the first limiting grooves are two and spaced apart from each other at the same side of the movable bracket; the first guide post comprises a first guide section and two first fixing sections which are convexly extended from two opposite ends of the first guide section, and the two first fixing sections are respectively clamped and fixed in the two first limiting grooves; the second guide column comprises a second fixing section and two second guide sections which are convexly extended from two opposite ends of the second fixing section, and the second fixing section is connected to the first boss; the lens bracket is respectively supported on the first guide section and the two second guide sections; the parallelism adjustment between the second guide post and the first guide post is realized by adjusting the relative position of the second fixing section and the first boss.
3. The lens adjusting apparatus according to claim 2, wherein an end of each of the first fixing sections connected to the bottom surface of the first stopper groove is a flat surface, an end of each of the second fixing sections connected to the top surface of the first boss is a flat surface, and the bottom surface of the first stopper groove and the top surface of the first boss are located in the same plane.
4. The lens adjusting apparatus according to claim 2, wherein the first adjusting bracket further includes a first screw and a second screw; each first fixing section is provided with a first through hole penetrating through the first fixing section, a first threaded hole is formed in each first limiting groove, and the first screw penetrates through the first through hole to be connected with the first threaded hole, so that the first fixing section is fixed in the first limiting groove; each second fixing section is provided with a second through hole penetrating through the second fixing section, each first boss is provided with a second threaded hole, and the second screw penetrates through the second through hole to be connected with the second threaded hole, so that the second fixing section is pressed on the first boss.
5. The lens adjusting apparatus as claimed in claim 2, wherein the lens holder includes a lens holder body, and a first supporting portion and a second supporting portion fixed to opposite sides of the lens holder body, respectively, and having a hollow structure; the first supporting part penetrates through two first supporting holes in the first direction, each first supporting hole is provided with a first sliding sleeve, and the first supporting part is positioned between the two first limiting grooves and is connected with the first guide section in a sliding mode through the two first sliding sleeves; the second support part penetrates through two second support holes in the second support part along the first direction, each second support hole is provided with a second sliding sleeve, the second support part is connected with the second guide section in a sliding mode through the two second sliding sleeves corresponding to the second support part, and the first boss is contained in the second support part.
6. The lens adjustment apparatus according to claim 1, further comprising a first driving mechanism fixed to the movable bracket and connected to the lens bracket, the first driving mechanism driving the lens bracket to slide relative to the lens bracket in the first direction.
7. The lens adjustment apparatus according to claim 1, further comprising a fixing bracket;
the fixing support comprises a fixing support body, a second limiting groove formed by sinking one side of the fixing support body and a second boss protruding and extending from the other side of the fixing support body;
the second adjusting bracket further comprises a third guide column and a fourth guide column which are arranged on two opposite sides of the movable bracket at intervals and extend along a second direction, and the third guide column is clamped in the second limiting groove and fixed; the fourth guide column is connected to the second boss; the movable support is respectively supported on the third guide column and the two fourth guide columns and is in sliding connection with the third guide column and the fourth guide columns, so that the movable support can slide relative to the fixed support along the second direction; wherein the first direction is perpendicular to the second direction;
and adjusting the relative position of the fourth guide column and the second boss when the fourth guide column is not completely fastened through the movable bracket so as to realize the adjustment of the parallelism between the fourth guide column and the third guide column.
8. The lens adjusting apparatus according to claim 7, wherein the two second limiting grooves are spaced apart from each other on the same side of the fixing bracket; the third guide column comprises a third guide section and two third fixing sections which are convexly extended from two opposite ends of the third guide section, and the two third fixing sections are respectively clamped and fixed in the two second limiting grooves; the fourth guide column comprises a fourth fixing section and two fourth guide sections which are convexly extended from two opposite ends of the fourth fixing section, and the fourth fixing section is connected to the second boss; the movable support is respectively supported on the third guide section and the two fourth guide sections; the parallelism adjustment between the fourth guide column and the third guide column is realized by adjusting the relative position of the fourth fixing section and the second boss.
9. The lens adjusting apparatus according to claim 8, wherein an end of each of the third fixing sections connected to the bottom surface of the second limiting groove is a flat surface, an end of each of the fourth fixing sections connected to the top surface of the second boss is a flat surface, and the bottom surface of the second limiting groove and the top surface of the second boss are located in the same plane.
10. The lens adjusting apparatus according to claim 8, wherein the second adjusting bracket further includes a third screw and a fourth screw; each third fixing section is provided with a third through hole penetrating through the third fixing section, a third threaded hole is formed in each second limiting groove, and a third screw penetrates through the third through hole to be connected with the third threaded hole, so that the third fixing section is fixed in the second limiting groove; each fourth fixing section is provided with a fourth through hole penetrating through the fourth fixing section, each second boss is provided with a fourth threaded hole, and a fourth screw penetrates through the fourth through hole to be connected with the fourth threaded hole, so that the fourth fixing section is pressed on the second boss.
11. The lens adjusting apparatus according to claim 8, wherein the moving bracket includes a moving bracket body and third and fourth supporting portions fixed to opposite sides of the moving bracket body; the third supporting part is provided with a third supporting hole penetrating through the third supporting part along the second direction, two third sliding sleeves are respectively arranged at two opposite ends of the third supporting hole, and the third supporting part is positioned between the two second limiting grooves and is connected to the third guide section through the two third sliding sleeves in a sliding manner; the fourth supporting part is of a hollow structure and is provided with two fourth supporting holes penetrating through the fourth supporting part along the second direction, the second boss is contained in the fourth supporting part, each fourth supporting hole is provided with a fourth sliding sleeve, and each fourth supporting part is connected to the fourth guide section in a sliding mode through the corresponding fourth sliding sleeve.
12. The lens adjustment apparatus according to claim 7, further comprising a second driving mechanism fixed to the fixed bracket body and connected to the movable bracket, the second driving mechanism driving the movable bracket to slide relative to the fixed bracket in the second direction.
13. A projection apparatus comprising a lens and an opto-mechanical assembly, wherein the projection apparatus comprises the lens adjusting device as claimed in any one of claims 1 to 12, the lens adjusting device comprises a fixing bracket for supporting the second adjusting bracket, one side of the fixing bracket away from the second adjusting bracket is connected to the opto-mechanical assembly, and the lens is fixed to the lens bracket.
14. The projection device of claim 13, wherein the opto-mechanical assembly comprises an opto-mechanical and an opto-mechanical bottom housing for housing the opto-mechanical; the projection equipment further comprises a plurality of adjustable connecting assemblies used for connecting the optical machine bottom shell and the fixed support, adjusting studs which protrude and extend from positions of the optical machine bottom shell corresponding to the adjustable connecting assemblies, and the fixed support is provided with connecting threaded holes and fifth through holes which are arranged corresponding to the adjustable connecting assemblies; each adjustable connecting assembly comprises a fastening nut, a fastening screw, an adjusting nut and an adjusting spring, the fastening screw is connected to the fixing support through the connecting threaded hole and abuts against the optical machine bottom shell, the fastening nut is in threaded connection with one side, away from the optical machine bottom shell, of the fastening screw and abuts against the fixing support, the adjusting stud penetrates through the fifth through hole and is in threaded connection with the adjusting nut, the adjusting spring is inserted in the adjusting stud, and two opposite ends of the adjusting spring abut against the optical machine bottom shell and the fixing support respectively.
15. The projection apparatus according to claim 14, wherein a recess of the fixing bracket corresponding to the adjusting spring forms a first receiving groove communicating with the fifth through hole, a recess of the optical chassis forms a second receiving groove enclosing a receiving space together with the first receiving groove, and the adjusting stud and the adjusting spring are respectively received in the receiving space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921658983.2U CN210924164U (en) | 2019-09-30 | 2019-09-30 | Lens adjusting device and projection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921658983.2U CN210924164U (en) | 2019-09-30 | 2019-09-30 | Lens adjusting device and projection equipment |
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| CN210924164U true CN210924164U (en) | 2020-07-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895252A (en) * | 2020-07-27 | 2020-11-06 | 杭州海康威视数字技术股份有限公司 | Mounting assembly |
| WO2021063143A1 (en) * | 2019-09-30 | 2021-04-08 | 深圳光峰科技股份有限公司 | Lens adjusting apparatus and projection device |
| WO2021190458A1 (en) * | 2020-03-23 | 2021-09-30 | 青岛海信激光显示股份有限公司 | Projector device |
| WO2022017274A1 (en) * | 2020-07-21 | 2022-01-27 | 深圳光峰科技股份有限公司 | Driving mechanism and adjusting device for lens support, and projector |
-
2019
- 2019-09-30 CN CN201921658983.2U patent/CN210924164U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021063143A1 (en) * | 2019-09-30 | 2021-04-08 | 深圳光峰科技股份有限公司 | Lens adjusting apparatus and projection device |
| US11841610B2 (en) | 2019-09-30 | 2023-12-12 | Appotronics Corporation Limited | Lens adjusting device and projection apparatus |
| WO2021190458A1 (en) * | 2020-03-23 | 2021-09-30 | 青岛海信激光显示股份有限公司 | Projector device |
| CN115315659A (en) * | 2020-03-23 | 2022-11-08 | 青岛海信激光显示股份有限公司 | Projection host |
| WO2022017274A1 (en) * | 2020-07-21 | 2022-01-27 | 深圳光峰科技股份有限公司 | Driving mechanism and adjusting device for lens support, and projector |
| CN111895252A (en) * | 2020-07-27 | 2020-11-06 | 杭州海康威视数字技术股份有限公司 | Mounting assembly |
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