CN218383464U - Straight line positive image illumination star finder - Google Patents
Straight line positive image illumination star finder Download PDFInfo
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- CN218383464U CN218383464U CN202123014394.0U CN202123014394U CN218383464U CN 218383464 U CN218383464 U CN 218383464U CN 202123014394 U CN202123014394 U CN 202123014394U CN 218383464 U CN218383464 U CN 218383464U
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- eyepiece
- lens
- joint
- objective lens
- erecting
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Abstract
The utility model relates to a straight line erect image illumination finder, the finder includes lens cone and objective, eyepiece, objective, eyepiece set up respectively at the lens cone both ends, objective installs on the lens cone, the eyepiece installs on the eyepiece joint, and install on the lens cone through the eyepiece joint; the eyepiece joint is rotatably connected with the lens cone; an erecting prism group is arranged on one side, close to the ocular, in the lens barrel; a reticle is arranged in the eyepiece joint and is arranged between the erecting prism group and the eyepiece, a light transmitting hole is formed in the side wall of the eyepiece joint, an illuminator is arranged on the light transmitting hole, and the illuminator is opposite to the reticle; the objective lens, the erecting prism group, the reticle and the eyepiece are on the same axis. Reasonable in design, simple structure adjusts the convenience, also watches easily.
Description
Technical Field
The utility model relates to a finder, concretely relates to straight line is just like illumination finder.
Background
Astronomical telescope systems are generally provided with a finder mirror in addition to a primary mirror. The primary mirror of the astronomical telescope is generally high in multiple and suitable for observing details, but when a target is searched, the target is inconvenient due to small field of view, so that conventionally, a star finder which is coaxial with the primary mirror, small in multiple and large in field of view is used for pre-positioning a star to be observed, and then the details of the target are observed through the primary mirror. The traditional finder has two types.
One is a line finder, but only the objective lens set can adjust the focal length, and the imaging is reversed, and without illuminator, the eyepiece is not adjustable.
The other star finder adopts a right-angle prism, although the imaging is positive, the star finder is not linear; the adjustment and the use are inconvenient and convenient.
Disclosure of Invention
In order to solve the problem, the utility model provides a straight line positive image illumination finder mirror.
The technical scheme of the utility model:
a straight line erect image illumination star finder comprises a lens cone, an objective lens and an eyepiece, wherein the objective lens and the eyepiece are respectively arranged at two ends of the lens cone; the eyepiece joint is rotationally connected with the lens cone; an erecting prism group is arranged on one side, close to the ocular lens, in the lens barrel; a reticle is arranged in the eyepiece joint and is arranged between the erecting prism group and the eyepiece, a light transmitting hole is formed in the side wall of the eyepiece joint, an illuminator is arranged on the light transmitting hole, and the illuminator is opposite to the reticle; the objective lens, the erecting prism group, the reticle and the eyepiece are on the same axis.
A prism seat is fixedly connected in the lens barrel, the prism seat extends out of the lens barrel, the eyepiece joint is sleeved on the part, extending out of the lens barrel, of the prism seat and is in rotating fit with the prism seat, a plurality of screw holes are uniformly distributed in the eyepiece joint in a circle, a locking screw is installed in one screw hole, nylon set screws are installed in the rest screw holes, and the eyepiece joint and the prism seat are locked through the locking screw; the erecting prism group is locked and fixed on the prism seat through the locking ring.
And a retainer ring is also arranged in the lens barrel and is positioned between the objective lens and the erecting prism group, and the central hole of the retainer ring is positioned on the same axis with the objective lens, the erecting prism group, the reticle and the ocular lens.
The eyepiece is a wide-angle eyepiece.
The prism seat is also sleeved with a decorative ring extending out of the lens barrel, and the decorative ring is used for filling a gap between the lens barrel and the ocular joint.
The objective lens is connected with the lens barrel through an objective lens adjusting locking ring, the objective lens adjusting locking ring is rotated, the objective lens is axially moved, and the focal length is adjusted; the eyepiece is connected with the eyepiece joint through the eyepiece adjusting locking ring, the eyepiece adjusting locking ring is rotated, the eyepiece is axially moved, and the focal length is adjusted.
The objective lens is provided with a lens cover in a matching way; an eye cover is arranged on the ocular lens in a matched manner.
The utility model has the advantages of reasonable design, simple structure, convenient adjustment and easy viewing; when the cross line on the reticle is not horizontal and vertical during watching, the locking screw is loosened, the ocular lens joint is rotated, and the cross line is adjusted to be in the horizontal and vertical directions. And the middle of the cross line can be ensured to be unchanged.
Drawings
Fig. 1 is a perspective view of a straight-line erect image illuminating star finder.
Fig. 2 is a top view of a straight line erecting illumination finder mirror.
FIG. 3 is a schematic sectional view of FIG. 2A-A.
In the figure, a lens barrel 1, an objective lens 2, an eyepiece lens 3, an eyepiece connector 4 are just like a dividing plate 5, a lighting device 7, a lighting device 6, a prism seat 8, a locking screw 9, a nylon locking screw 10, a locking ring 11, a retainer ring 12, an objective lens adjusting locking ring 14, an eyepiece lens adjusting locking ring 15, an eyepiece cover 16 and an eyeshade 17.
Detailed Description
As shown in fig. 1-3, a straight-line erect image illumination finder, the finder comprises a lens barrel 1, an objective lens 2 and an eyepiece 3, wherein the objective lens 2 and the eyepiece 3 are respectively arranged at two ends of the lens barrel 1, the objective lens 2 is mounted on the lens barrel 1, and the eyepiece 3 is mounted on an eyepiece joint 4 and is mounted on the lens barrel 1 through the eyepiece joint 4; the eyepiece joint 4 is rotationally connected with the lens cone 1; an erecting prism group 5 is arranged on one side of the lens barrel 1 close to the eyepiece 3; a reticle 6 is arranged in the eyepiece joint 4, the reticle 6 is arranged between the erecting prism group 5 and the eyepiece 3, a light transmitting hole is formed in the side wall of the eyepiece joint 4, an illuminator 7 is arranged on the light transmitting hole, and the illuminator 7 is opposite to the reticle; the objective lens 2, the erecting prism group 5, the reticle 6 and the ocular lens 3 are on the same axis; a prism seat 8 is fixedly connected in the lens barrel 1, the prism seat 8 extends out of the lens barrel 1, the eyepiece joint 4 is sleeved on the part of the prism seat 8 extending out of the lens barrel 1 and is in rotating fit with the prism seat 8, a plurality of screw holes are uniformly distributed in a circle of the eyepiece joint 4, a locking screw 9 is installed in one screw hole, nylon set screws 10 are installed in the other screw holes, and the eyepiece joint 4 and the prism seat 8 are locked through the locking screws 9; the erecting prism group 5 is locked and fixed on the prism seat 8 through a locking ring 11; a retainer ring 12 is also arranged in the lens barrel 1, the retainer ring 12 is positioned between the objective lens 2 and the erecting prism group 5, and the central hole of the retainer ring is coaxial with the objective lens 2, the erecting prism group 5, the reticle 6 and the ocular lens 3; the ocular 3 is a wide-angle ocular; the prism seat 8 extends out of the lens barrel 1 and is sleeved with a decorative ring 13, and a gap between the lens barrel 1 and the eyepiece joint 4 is filled through the decorative ring 13; the objective lens 2 is connected with the lens barrel 1 through an objective lens adjusting locking ring 14, the objective lens adjusting locking ring 14 is rotated, the objective lens 2 is axially moved, and the focal length is adjusted; the eyepiece 3 is connected with the eyepiece joint 4 through an eyepiece adjusting locking ring 15, the eyepiece adjusting locking ring 15 is rotated, the eyepiece 3 is axially moved, and the focal length is adjusted; the objective lens 2 is provided with a lens cover 16 in a matching way; an eye patch 17 is arranged on the ocular 3 in a matching way.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A straight line erect image illumination star finder comprises a lens cone, an objective lens and an eyepiece, wherein the objective lens and the eyepiece are respectively arranged at two ends of the lens cone; the eyepiece joint is rotationally connected with the lens cone; an erecting prism group is arranged on one side, close to the ocular, in the lens barrel; a reticle is arranged in the eyepiece joint and is arranged between the erecting prism group and the eyepiece, a light transmitting hole is formed in the side wall of the eyepiece joint, and a lighting device is arranged on the light transmitting hole and is opposite to the reticle; the objective lens, the erecting prism group, the reticle and the eyepiece are on the same axis.
2. The straight-line erecting lighting star finder according to claim 1, wherein a prism base is fixedly connected in said lens barrel, said prism base extends out of said lens barrel, said eyepiece joint is sleeved on the portion of said prism base extending out of said lens barrel and is rotatably fitted with said prism base, a plurality of screw holes are uniformly distributed around said eyepiece joint, one of said screw holes is provided with a locking screw, and the other screw holes are provided with nylon set screws, and said eyepiece joint and said prism base are locked by said locking screws; the erecting prism group is locked and fixed on the prism seat through the lock ring.
3. The straight-line erecting illuminating star finder according to claim 1, wherein a retainer ring is further installed in said lens barrel, said retainer ring is located between said objective lens and said erecting prism group, and a central hole thereof is coaxial with said objective lens, said erecting prism group, said reticle and said eyepiece.
4. The straight line erecting illumination finder as recited in claim 1, wherein said eyepiece is a wide angle eyepiece.
5. The straight-line erecting illuminating star finder according to claim 2, wherein said prism base is further sleeved with a decoration ring extending from the exterior of the lens barrel, and the decoration ring fills the gap between the lens barrel and the eyepiece joint.
6. The straight-line erect image lighting star finder according to claim 1, wherein the objective lens is connected with the lens barrel through an objective lens adjusting lock ring, the objective lens adjusting lock ring is rotated, the objective lens is axially moved, and the focal length is adjusted; the eyepiece is connected with the eyepiece connector through an eyepiece adjusting locking ring, the eyepiece adjusting locking ring is rotated, the eyepiece is axially moved, and the focal length is adjusted.
7. The straight-line erect image illuminating star finder according to claim 1, wherein a lens cover is provided with said objective lens; an eye cover is arranged on the ocular lens in a matching way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123014394.0U CN218383464U (en) | 2021-12-03 | 2021-12-03 | Straight line positive image illumination star finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123014394.0U CN218383464U (en) | 2021-12-03 | 2021-12-03 | Straight line positive image illumination star finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218383464U true CN218383464U (en) | 2023-01-24 |
Family
ID=84951406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123014394.0U Active CN218383464U (en) | 2021-12-03 | 2021-12-03 | Straight line positive image illumination star finder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218383464U (en) |
-
2021
- 2021-12-03 CN CN202123014394.0U patent/CN218383464U/en active Active
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