CN217404599U - High-precision lens convenient to assemble - Google Patents
High-precision lens convenient to assemble Download PDFInfo
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- CN217404599U CN217404599U CN202220916700.5U CN202220916700U CN217404599U CN 217404599 U CN217404599 U CN 217404599U CN 202220916700 U CN202220916700 U CN 202220916700U CN 217404599 U CN217404599 U CN 217404599U
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Abstract
The utility model provides a high-precision lens convenient to assemble, which comprises a bracket, wherein a focusing ring is sleeved outside the bracket, a lens cone is connected inside the bracket, and a pressing ring, a first lens, a first spacing ring, a second lens, a third lens, a second spacing ring and a fourth lens are sequentially arranged inside the lens cone from front to back; the rear end in the lens cone is provided with a limiting ring; the first spacing ring and the second spacing ring are coaxially arranged, the first lens is connected to the front end of the first spacing ring, the second lens is connected to the rear end of the first spacing ring, the third lens is connected to the front end of the second spacing ring and the rear end of the first spacing ring, the fourth lens is connected to the rear end of the second spacing ring, the rear end of the fourth lens is matched with the limiting ring in an abutting mode, the edge of the rear end face of the second lens is matched with the edge of the front end face of the third lens in an abutting mode, the compression ring is in threaded connection with the lens barrel, and the compression ring is matched with the edge of the front end face of the first lens in an abutting mode.
Description
Technical Field
The utility model relates to a projection equipment technical field, concretely relates to high accuracy camera lens of convenient equipment.
Background
The lens in the projector is mainly used for magnifying and projecting an image formed by an imaging device in the projector onto a projection screen, when the distance between the screen and the imaging device is different, the relative position of the lens between the screen and the imaging device needs to be adjusted so that a picture of the imaging device can be clearly imaged on the projection screen, and the process is called focusing of the lens. In the existing LCD projector, the lens is large, the focusing stroke is long, and the quick automatic focusing function is difficult to realize; even if automatic focusing is realized, the lens assembly is complicated and the cost is relatively high.
SUMMERY OF THE UTILITY MODEL
To the problem pointed out in the background art, the utility model provides a high accuracy camera lens of convenient equipment, its equipment is convenient, and the equipment precision is high, and the cost is lower.
The technical scheme of the utility model is realized like this:
a high-precision lens convenient to assemble comprises a support, wherein a focusing ring is sleeved outside the support, a lens cone is connected inside the support, and a pressing ring, a first lens, a first spacing ring, a second lens, a third lens, a second spacing ring and a fourth lens are sequentially arranged inside the lens cone from front to back;
the rear end in the lens cone is provided with a limiting ring;
the first spacing ring and the second spacing ring are coaxially arranged, the first lens is connected to the front end of the first spacing ring, the second lens is connected to the rear end of the first spacing ring, the third lens is connected to the front end of the second spacing ring and the rear end of the first spacing ring, the fourth lens is connected to the rear end of the second spacing ring, the rear end of the fourth lens is matched with the limiting ring in an abutting mode, the edge of the rear end face of the second lens is matched with the edge of the front end face of the third lens in an abutting mode, the compression ring is in threaded connection with the lens barrel, and the compression ring is matched with the edge of the front end face of the first lens in an abutting mode.
The utility model discloses further set up to, spacer ring one and spacer ring two around the interval set up.
The utility model discloses further set up to, the lateral wall of lens cone on be equipped with convex guide post, the support on be equipped with the spacing groove that corresponds with the guide post, the inside wall of focusing ring on be equipped with the guide way that corresponds with the guide post, the guide post passes the spacing groove and stretches into in the guide way and form sliding fit with the guide way.
The utility model discloses further set up to, the support on be equipped with the motor, be connected with drive gear on the motor, be equipped with on the focusing ring with drive gear meshing's focusing gear, the motor passes through drive gear and focusing gear and drives the focusing ring rotation.
The utility model discloses further set up to, the support on be equipped with the light sense switch, the focusing ring on be equipped with the baffle that corresponds with the light sense switch.
The utility model discloses further set up to, the guide post be provided with two at least. The number of the guide posts is preferably 2-4.
The utility model discloses further set up to, the focusing ring on be equipped with and be used for driving focusing ring pivoted focusing handle.
The utility model discloses further set up to, spacer ring one for the little toper structure in the big rear end of front end, spacer ring two is the big toper structure in the little rear end of front end.
Adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the high-precision lens convenient to assemble provided by the utility model has the advantages that the first lens, the second lens and the third lens are assembled in the first spacing ring, and the coaxial error of the same part is smaller; the third lens and the fourth lens are assembled in the second spacing ring; the first spacing ring and the second spacing ring simultaneously use the outer diameter of the third lens for limiting, so that the coaxiality of the four lenses can be relatively accurate (the better the coaxiality of each lens in the lens is, the better the resolution of the lens is, and the worse the coaxiality is, the worse the resolution is); therefore, only the precision of the first spacing ring and the second spacing ring needs to be ensured, the requirements of other parts can be relaxed, the analysis quality of the lens can be ensured, and meanwhile, the assembly is simpler and the cost is lower.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 according to these drawings without inventive exercise.
Fig. 1 is a first schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is an exploded view of the present invention;
fig. 4 is an exploded view of the bracket, the focusing ring and the lens barrel of the present invention;
fig. 5 is a schematic structural view of the bracket of the present invention;
fig. 6 is a schematic structural view of the lens barrel of the present invention;
fig. 7 is a first schematic structural view of the focusing ring of the present invention;
fig. 8 is a second schematic structural view of the focusing ring of the present invention;
fig. 9 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.
The present invention is described below with reference to fig. 1-9:
the utility model provides a high accuracy camera lens of convenient equipment, includes support 010, and support 010 overcoat has connect focusing ring 020, and support 010 in-connection has lens cone 030, lens cone 030 in the past to be equipped with clamping ring 040, lens one 050 after to in proper order, spacer ring 060, two 051 of lens, three 052 of lens, two 070 of spacer ring, four 053 of lens.
The rear end in the lens cone 030 is provided with a spacing ring 2.
Spacer ring one 060 and spacer ring two 070 are coaxial arrangement, lens one 050 is connected at the front end of spacer ring one 060, lens two 051 is connected at the rear end of spacer ring one 060, lens three 052 is connected at the front end of spacer ring two 070 and the rear end of spacer ring one 060, lens four 053 is connected at the rear end of spacer ring two 070, the rear end and the spacing ring 2 of the edge of lens four 053 offset the cooperation, the edge of the rear end face of lens two 051 offsets the cooperation with the edge of the preceding terminal surface of lens three 052, clamping ring 040 and lens cone 030 threaded connection, clamping ring 040 offsets the cooperation with the edge of the preceding terminal surface of lens one 050.
The first spacer ring 060 and the second spacer ring 070 are arranged at intervals in the front-back direction.
The outer side wall of the lens cone 030 is provided with convex guide posts (031, 032, 033), the support 010 is provided with limit grooves (011, 012, 013) corresponding to the guide posts (031, 032, 033), the inner side wall of the focusing ring 020 is provided with guide grooves (024, 025, 026) corresponding to the guide posts (031, 032, 033), and the guide posts (031, 032, 033) penetrate through the limit grooves (011, 012, 013) to extend into the guide grooves (024, 025, 026) and form sliding fit with the guide grooves (024, 025, 026).
The support 010 on be equipped with motor 090, be connected with drive gear 091 on the motor 090, be equipped with on the focusing ring 020 with the focusing gear 023 of drive gear 091 meshing, motor 090 drives focusing ring 020 through drive gear 091 and focusing gear 023 and rotates.
And a focusing handle 021 for driving the focusing ring 020 to rotate is arranged on the focusing ring 020.
The first spacer ring 060 is a conical structure with a large front end and a small rear end, and the second spacer ring 070 is a conical structure with a small front end and a large rear end.
And the bracket is mainly used for supporting various parts of the lens and is connected with the illumination part.
And the focusing ring is mainly driven by the guide groove (024025026) to move the guide post (031032033) on the corresponding lens barrel back and forth in the limit groove (011012013) on the bracket when rotating.
And a focusing handle on the focusing ring can determine whether to increase according to requirements.
The lens cone 030 is provided with three guide posts (031032033) which are respectively matched with a limit groove (011012013) on the bracket, and the guide posts can move forwards and backwards in the limit groove in the axial direction; three guide grooves (024025026) are arranged on the focusing ring and are respectively matched with three guide posts of the lens barrel, and when the focusing ring rotates, the lens barrel can be pushed to axially move forwards and backwards; the inner side wall of the focusing ring is provided with three limiting columns (027, 028 and 029), the front end of the support is provided with limiting grooves (014, 015 and 016) matched with the limiting columns, and the focusing ring can only rotate in the rotating direction and cannot move back and forth when the focusing ring rotates to push the lens cone to move back and forth for focusing, otherwise, the lens cone cannot move back and forth, but the focusing ring moves back and forth, and focusing cannot be performed.
And the light sense switch baffle is used for giving a light sense switch signal and ensuring that the lens focusing ring rotates in a corresponding effective angle range.
The light sensing switch is used for identifying signals, and the focusing ring and the baffle plate can only rotate in a signal area of the light sensing switch when the light sensing switch senses that the signals are different; and the focusing gear is matched with a driving gear 091 on the motor, and the motor drives the lens focusing ring to rotate back and forth within the range of the baffle and the light sensation switch when rotating so as to finish the focusing process.
Adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model provides a high accuracy camera lens of convenient equipment, its lens one 050, lens two 051, lens three 052 assemble in spacer ring one 060, the coaxial error with 1 part can be smaller; the lens three 052 and the lens four 053 are assembled in the spacer ring two 070; the first spacer ring 060 and the second spacer ring 070 are limited by using the outer diameter of the lens 3, so that the coaxiality of the 4 lenses is relatively accurate (the better the coaxiality of each lens in the lens is, the better the resolution of the lens is, and the worse the coaxiality is, the worse the resolution is); therefore, only the precision of the first spacer ring 060 and the second spacer ring 070 needs to be guaranteed, the requirements of other parts can be relaxed, the resolution quality of the lens can be guaranteed, and meanwhile, the assembly is simpler and the cost is lower.
The foregoing is illustrative of the present invention and is not to be construed as limited thereto, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a high accuracy camera lens of convenient equipment, includes the support, and the support overcoat has the focusing ring, and the support in-connection has lens cone, its characterized in that: a compression ring, a first lens, a first spacing ring, a second lens, a third lens, a second spacing ring and a fourth lens are sequentially arranged in the lens barrel from front to back;
the rear end in the lens cone is provided with a limit ring;
spacer ring one and the coaxial setting of spacer ring two, lens one is connected at the front end of spacer ring one, lens two is connected in the rear end of spacer ring one, lens three is connected in the front end of spacer ring two and the rear end of spacer ring one, lens four is connected in the rear end of spacer ring two, the rear end and the spacing ring of the edge of lens four offset the cooperation, the edge of the rear end face of lens two offsets the cooperation with the edge of the preceding terminal surface of lens three, clamping ring and lens cone threaded connection, the clamping ring offsets the cooperation with the edge of the preceding terminal surface of lens one.
2. A high-precision lens easy to assemble according to claim 1, wherein: the first spacing ring and the second spacing ring are arranged at intervals front and back.
3. A high-precision lens easy to assemble according to claim 1, wherein: the outer side wall of the lens cone is provided with a convex guide post, the support is provided with a limit groove corresponding to the guide post, the inner side wall of the focusing ring is provided with a guide groove corresponding to the guide post, and the guide post penetrates through the limit groove, extends into the guide groove and forms sliding fit with the guide groove.
4. A high-precision lens easy to assemble according to claim 1, wherein: the support on be equipped with the motor, be connected with drive gear on the motor, be equipped with the focusing gear with drive gear meshing on the focusing ring, the motor passes through drive gear and focusing gear drive focusing ring and rotates.
5. A high precision lens convenient to assemble according to claim 1, wherein: the bracket is provided with a light sensing switch, and the focusing ring is provided with a baffle corresponding to the light sensing switch.
6. A high-precision lens easy to assemble according to claim 3, wherein: the guide posts are at least provided with two.
7. A high-precision lens easy to assemble according to claim 1, wherein: and a focusing handle for driving the focusing ring to rotate is arranged on the focusing ring.
8. A high precision lens convenient to assemble according to claim 1, wherein: the first spacer ring is of a conical structure with a large front end and a small rear end, and the second spacer ring is of a conical structure with a small front end and a large rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220916700.5U CN217404599U (en) | 2022-04-20 | 2022-04-20 | High-precision lens convenient to assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220916700.5U CN217404599U (en) | 2022-04-20 | 2022-04-20 | High-precision lens convenient to assemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217404599U true CN217404599U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220916700.5U Active CN217404599U (en) | 2022-04-20 | 2022-04-20 | High-precision lens convenient to assemble |
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| Country | Link |
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| CN (1) | CN217404599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082479A1 (en) * | 2022-10-18 | 2024-04-25 | 京东方科技集团股份有限公司 | Projection apparatus |
-
2022
- 2022-04-20 CN CN202220916700.5U patent/CN217404599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082479A1 (en) * | 2022-10-18 | 2024-04-25 | 京东方科技集团股份有限公司 | Projection apparatus |
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