CN216387712U - Lens adjusting device of projector - Google Patents
Lens adjusting device of projector Download PDFInfo
- Publication number
- CN216387712U CN216387712U CN202122339059.1U CN202122339059U CN216387712U CN 216387712 U CN216387712 U CN 216387712U CN 202122339059 U CN202122339059 U CN 202122339059U CN 216387712 U CN216387712 U CN 216387712U
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- lens
- adjusting
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- spring
- fixing ring
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Abstract
The utility model provides a lens adjusting device of a projector, which comprises a base, a lens fixing component and an adjusting component, wherein the base is provided with a lens mounting seat, one side of the base is provided with a limiting ring, one side surface of the limiting ring is uniformly provided with a plurality of lugs, and one end of each lug is an inclined plane; it includes lens, the solid fixed ring of lens, spacing spring and spring spacer, and the solid fixed ring of lens corresponds the card and locates in the spacing ring, and the solid fixed ring's of lens top has a rotor plate, and the corresponding lug in one side of the solid fixed ring of lens is equipped with spacing recess, and adjusting part includes two regulation spacers and two adjusting screw, and two regulation spacers set up in the lens mount pad through the bolt activity respectively and are located the both sides of rotor plate respectively. The utility model relates to a lens adjusting device of a projector, which has simple structure and convenient operation, and corrects an optical path by adjusting the position of a lens, thereby enabling the position of a light source passing through the lens to be adjusted to be optimal and enabling a projection picture to be optimal.
Description
Technical Field
The utility model relates to the technical field of projectors, in particular to a lens adjusting device of a projector.
Background
A projector displays an image by projecting light emitted from a light source to an image forming panel onto a projection surface through a projection lens unit. Because there are many optical axis parts in the projector, and machining and installation inevitably bring errors, the accumulation of errors of each part increases the errors, if the relative position change of the lens caused by the errors will cause the stability and precision of the optical axis to be insufficient, the position of the lens of the existing projector can not be adjusted, the light path and the light beam quantity will be transmitted and deviated due to assembly errors and product tolerance, thereby affecting the brightness reduction of the projection picture, and usually having adverse effects along with the white chromaticity of the picture. If the relative position of the lens changes due to errors, the stability and precision of the optical axis are insufficient, and the projected images are further spatially displaced and blurred, so that the viewing experience of projection is affected.
Disclosure of Invention
The present invention is directed to a lens adjusting device for a projector, which has a simple structure and is convenient to operate, and corrects an optical path by adjusting a position of a lens, so that the position of a light source passing through the lens is adjusted to be optimal, and a projection image is optimized.
The utility model is realized by the following steps: a lens adjusting device of a projector comprises a base, a lens fixing component and an adjusting component, wherein a lens mounting seat is arranged on the base, a lens mounting through hole is formed in the lens mounting seat, a limiting ring is arranged on one side of the lens mounting through hole, an opening is formed in the top of the limiting ring, a plurality of convex blocks are uniformly arranged on one side face of the limiting ring, and one end of each convex block is an inclined plane; the lens fixing assembly comprises a lens, a lens fixing ring, a limiting spring and a spring positioning piece, the lens fixing ring is a stepped fixing ring and is correspondingly clamped in the limiting ring, a rotating piece is arranged at the top of the lens fixing ring and movably arranged in an opening at the top of the limiting ring, a limiting groove is formed in one side of the lens fixing ring corresponding to the lug, one end of the limiting spring abuts against the other side of the lens fixing ring, the other end of the limiting spring abuts against the spring positioning piece, the spring positioning piece is fixed in the lens mounting seat through a bolt, and the lens is arranged in the lens fixing ring; the adjusting component comprises two adjusting positioning pieces and two adjusting screw rods, wherein the adjusting positioning pieces are movably arranged in the lens mounting seat through bolts respectively and are located on two sides of the rotating pieces respectively, the two adjusting screw rods penetrate through the top of the lens mounting seat in a spiral mode, and the lower ends of the adjusting screw rods are correspondingly abutted to the two adjusting positioning pieces and are fixed through fixing nuts respectively.
Further, the adjusting part still includes a torsional spring, the torsional spring has two couples, and it will through a bolt the torsional spring is fixed in the lens mount pad, and is located the top of rotor plate, one of which the couple hook is located on the rotor plate, make the rotor plate supports and locates one of it adjusts the inboard of spacer, and another couple supports and locates roof in the lens mount pad.
Furthermore, the inboard of adjusting the spacer is an arc angle for support and establish the rotor plate, the outside of adjusting the spacer has an L type and supports the portion of establishing, adjusting screw's lower extreme supports respectively locates two the L type of adjusting the spacer supports the portion of establishing.
Furthermore, the spring positioning sheet is in a ring shape, and a plurality of spring clamping sheets for clamping the springs are uniformly arranged on the inner ring wall of the spring positioning sheet.
Furthermore, the quantity of the lugs is 3, and the quantity of the limiting grooves corresponding to the lugs is also 3.
The utility model has the advantages that: a lens adjusting device of a projector is simple in structure and convenient to operate, two adjusting positioning pieces and two adjusting screw rods are arranged, the adjusting screw rods are rotated to enable the adjusting screw rods to move up and down in a spiral mode, so that the adjusting positioning pieces can be adjusted and rotated left and right, and the lens fixing rings can be further adjusted in a left and right swinging mode through adjusting and rotating of the two adjusting positioning pieces; the convex block is arranged on the limiting ring, one end of the convex block is an inclined surface and is arranged in the limiting groove, and when the lens fixing ring is adjusted in a left-right rotating mode, the position of the lens fixing ring can be adjusted back and forth through the action of the limiting groove and the convex block; the lens fixing ring can be tightly attached to the limiting ring by arranging the limiting spring; the rotating sheet of the lens fixing ring can be tightly attached to the inner side of one of the adjusting positioning sheets by arranging the torsion spring. The utility model corrects the light path by adjusting the position of the lens, thereby enabling the position of the light source passing through the lens to be adjusted to be optimal and enabling the projection picture to be optimal.
Drawings
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a first schematic structural diagram of a lens adjusting device of a projector according to the present invention.
Fig. 2 is a schematic structural diagram of a lens adjusting device of a projector according to a second embodiment of the present invention.
Fig. 3 is an exploded view of a lens adjusting device of a projector according to a first embodiment of the present invention.
Fig. 4 is an exploded view of a lens adjusting device of a projector according to a second embodiment of the present invention.
Fig. 5 is a schematic front view of fig. 1 according to the present invention.
Fig. 6 is a cross-sectional view of the structure a-a of fig. 5 in accordance with the present invention.
Fig. 7 is a schematic front view of the base of the present invention.
FIG. 8 is a schematic view of a lens retaining ring according to the present invention.
FIG. 9 is a schematic view of the structure of the adjustable positioning plate of the present invention.
Fig. 10 is a schematic structural view of the torsion spring of the present invention.
The reference numbers illustrate: the lens fixing device comprises a base 1, a lens mounting seat 11, a lens mounting through hole 12, a limiting ring 13, a bump 131, an inclined surface 1311, an opening 14, a lens fixing component 2, a lens 21, a lens fixing ring 22, a limiting groove 221, a rotating sheet 222, a limiting spring 23, a spring positioning sheet 24, a spring clamping sheet 241, an adjusting component 3, an adjusting positioning sheet 31, an arc angle 311, an L-shaped abutting part 312, an adjusting screw 32, a torsion spring 33, a hook 331 and a fixing nut 34.
Detailed Description
Referring to fig. 1 to 10, a lens adjusting device of a projector according to the present invention includes a base 1, a lens fixing component 2 and an adjusting component 3, wherein the base 1 is provided with a lens mounting base 11, the lens mounting base 11 is provided with a lens mounting through hole 12 therein, one side of the lens mounting through hole 12 is provided with a limiting ring 13, the top of the limiting ring 13 is provided with an opening 14, a plurality of bumps 131 are uniformly provided on one side surface of the limiting ring 13, one end of each bump 131 is an inclined surface 1311, and preferably, the number of the bumps 131 is 3; the lens fixing component 2 comprises a lens 21, a lens fixing ring 22, a limiting spring 23 and a spring positioning piece 24, the lens 21 is arranged in the lens fixing ring 22, the lens fixing ring 22 is a stepped fixing ring and is correspondingly clamped in the limiting ring 13, a limiting groove 221 is arranged on one side of the lens fixing ring 22 corresponding to the lug 131, and preferably, the number of the limiting grooves 221 corresponding to the lugs 131 is also 3; the fixed rotor plate 222 that is equipped with in top of the solid fixed ring 22 of lens, the activity of rotor plate 222 is located in the opening 14 at spacing ring 13 top, the one end of spacing spring 23 is supported and is located the solid fixed ring 22's of lens opposite side, the other end of spacing spring 23 is supported and is located spring spacer 24, spring spacer 24 is ring shape, evenly is equipped with a plurality of spring cards 241 that are used for the card to establish spacing spring 23 on its inner ring wall, through setting up spring card 241 for fixed spacing spring 23 prevents that spacing spring 23 from droing. The spring positioning plate 24 is fixed in the lens mounting seat 11 through a bolt; the adjusting assembly 3 comprises two adjusting positioning pieces 31 and two adjusting screw rods 32, two adjusting positioning pieces 31 are respectively movably arranged in the lens mounting seat 11 through bolts and are respectively located on two sides of the rotating piece 222, two adjusting screw rods 32 are spirally penetrated through the top of the lens mounting seat 11, and the lower ends of the adjusting screw rods respectively correspond to the adjusting positioning pieces 31 and are fixed through a fixing nut 34. The inner side of the adjusting positioning piece 31 is an arc angle 311 for abutting against the rotating piece 222, the outer side of the adjusting positioning piece 31 is provided with an L-shaped abutting part 312, and the lower end of the adjusting screw rod 32 abuts against the L-shaped abutting parts 312 of the two adjusting positioning pieces 31 respectively. The adjusting part 3 still includes a torsional spring 33, the torsional spring 33 has two couples 331, and it will through a bolt the torsional spring 33 is fixed in the lens mount pad 11, and is located the top of rotor plate 222, one of which couple 331 hook is located on the rotor plate 222, make the rotor plate 222 support and locate one of them the inboard of adjusting the spacer 31, another the couple 331 supports and locates roof in the lens mount pad 11, through setting up torsional spring 33, it is more convenient to make the regulation, only needs adjusting screw 32 through adjusting one side can control the rotor plate 222 and control the rotation, the adjusting screw 32 of rethread opposite side after adjusting the angle fixes can to the rotor plate 222.
The operation principle is as follows: the adjusting screw 32 is screwed up and down at the top of the lens mounting seat 11 by rotating the adjusting screw 32, the lower end of the adjusting screw 32 is abutted against the L-shaped abutting part 312 arranged at the outer side of the adjusting positioning piece 31, the torsion spring 33 is arranged, the rotating piece 222 on the lens fixing ring 22 is tightly attached to one of the L-shaped abutting part 312 by the torsion force of the torsion spring 33, when the adjusting screw 32 is rotated to correspond to one of the L-shaped abutting part, the outer side of the adjusting positioning piece 31 can move up and down correspondingly according to the up and down screw of the adjusting screw 32, so that the arc-shaped angle 311 at the inner side of the adjusting positioning piece 31 can move up and down, the up and down movement of the arc-shaped angle 311 can push the rotating piece 222, the rotating piece 222 can be adjusted in a left-right rotating manner, when the rotating piece 222 is adjusted in a left-right rotating manner, the lens fixing ring 22 can be adjusted in a left-right rotating manner, by arranging the convex block 131 at one side of the limit ring 13, the rotating sheet 222 at the top of the lens fixing ring 22 is movably arranged in the opening 14 at the top of the limit ring 13, the lens fixing ring 22 is a stepped fixing ring and correspondingly clamped in the limit ring 13, and a limit groove 221 is arranged at the position of the lens fixing ring 22 corresponding to one side of the convex block 131; when the lens fixing ring 22 is adjusted in a left-right rotation manner, due to the action of the limiting groove 221 and the bump 131 and the arrangement of the limiting spring 23, the lens fixing ring 22 is tightly attached to the limiting ring 13, so that the dislocation and the coincidence of the positions of the limiting groove 221 and the bump 131 are completed, one end of the bump 131 is the inclined surface 1311, and the limiting ring 13 is fixedly arranged, so that the position of the lens fixing ring 22 is adjusted back and forth when the lens fixing ring 22 is adjusted in a left-right rotation manner; when the position of the lens is adjusted, the arc-shaped angle 311 of the other adjusting positioning piece 31 is adjusted to abut against the rotating piece 222 by rotating the adjusting screw rod 32, and the two adjusting screw rods 32 are fixed by the fixing nuts 34, so that the adjustment of the position of the lens is completed. The utility model corrects the light path by adjusting the position of the lens, thereby enabling the position of the light source passing through the lens to be adjusted to be optimal and enabling the projection picture to be optimal.
Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.
Claims (5)
1. A lens adjusting apparatus of a projector, characterized in that: the method comprises the following steps:
the lens mounting device comprises a base, a positioning ring and a plurality of lugs, wherein the base is provided with a lens mounting seat, a lens mounting through hole is formed in the lens mounting seat, one side of the lens mounting through hole is provided with the positioning ring, the top of the positioning ring is provided with an opening, a plurality of lugs are uniformly arranged on one side surface of the positioning ring, and one end of each lug is an inclined surface;
the lens fixing assembly comprises a lens, a lens fixing ring, a limiting spring and a spring positioning piece, wherein the lens is arranged in the lens fixing ring, the lens fixing ring is a stepped fixing ring and is correspondingly clamped in the limiting ring, a rotating piece is arranged at the top of the lens fixing ring and is movably arranged in an opening at the top of the limiting ring, a limiting groove is arranged at one side of the lens fixing ring, which corresponds to the lug, one end of the limiting spring abuts against the other side of the lens fixing ring, the other end of the limiting spring abuts against the spring positioning piece, and the spring positioning piece is fixed in the lens mounting seat through a bolt;
an adjusting part, including two regulation spacer and two adjusting screw, two the regulation spacer respectively through the bolt activity set up in just be located respectively in the lens mount pad the both sides of rotor plate, two the adjusting screw spiral is worn to establish lens mount pad top, and the lower extreme corresponds respectively supports locates two the regulation spacer outside to it is fixed through a fixation nut respectively.
2. A lens adjusting apparatus of a projector according to claim 1, wherein: the adjusting component further comprises a torsion spring, the torsion spring is provided with two hooks, the torsion spring is fixed in the lens mounting seat through a bolt and is located above the rotating sheet, one of the hooks is arranged on the rotating sheet, the rotating sheet is abutted to the one of the hooks, the inner side of the adjusting positioning sheet is adjusted, and the other hook is abutted to the inner top wall of the lens mounting seat.
3. A lens adjusting apparatus of a projector according to claim 1, wherein: the inboard of adjusting the spacer is an arc angle for support and establish the rotor, the outside of adjusting the spacer has an L type and supports the portion of establishing, adjusting screw's lower extreme supports respectively locates two the L type of adjusting the spacer supports the portion of establishing.
4. A lens adjusting apparatus of a projector according to claim 1, wherein: the spring positioning sheet is in a ring shape, and a plurality of spring clamping sheets used for clamping the springs are uniformly arranged on the inner ring wall of the spring positioning sheet.
5. A lens adjusting apparatus of a projector according to claim 1, wherein: the quantity of lug is 3, spacing recess corresponds the quantity of lug also is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122339059.1U CN216387712U (en) | 2021-09-26 | 2021-09-26 | Lens adjusting device of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122339059.1U CN216387712U (en) | 2021-09-26 | 2021-09-26 | Lens adjusting device of projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216387712U true CN216387712U (en) | 2022-04-26 |
Family
ID=81241198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122339059.1U Active CN216387712U (en) | 2021-09-26 | 2021-09-26 | Lens adjusting device of projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216387712U (en) |
-
2021
- 2021-09-26 CN CN202122339059.1U patent/CN216387712U/en active Active
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