Novel optical axis adjusting device
By using a modular primary mirror tray and primary mirror ring design, combined with grippers and adjustment knobs, the problems of fragile and cumbersome operation of the primary mirror of the Newtonian reflecting telescope are solved, achieving safe protection and easy adjustment of the primary mirror, and improving the observation effect.
Patent Information
- Application Number
- CN202521024239.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-05-22
AI Technical Summary
The existing optical axis adjustment device of Newtonian reflecting telescope has the problems of fragile primary mirror and cumbersome operation. It is especially prone to damage during the placement and adjustment of the primary mirror, and the adjustment screws need to be operated separately.
The primary mirror tray and primary mirror collar are manufactured separately, combined with four grippers and adjustment knobs. The grippers hold the primary mirror tightly around its perimeter, and the adjustment knobs are used for overall adjustment, which increases the force-bearing area and simplifies the operation. At the same time, a retainer is used to fix the primary mirror pressure ring, reducing stress concentration.
It effectively protects the primary mirror from impact damage, simplifies the adjustment process, improves operational convenience and maintains the precision of the lens, and ensures the imaging quality of astronomical observations.
Smart Images
Figure CN223941171U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reflecting telescope equipment technology, and in particular to a novel optical axis adjustment device. Background Technology
[0002] Newtonian reflecting telescopes use a parabolic mirror as the primary mirror. Light enters the bottom of the telescope tube, then refracts back to the second reflecting mirror (a flat diagonal reflecting mirror) at the opening, changing direction again to enter the focal plane of the eyepiece.
[0003] When using a Newtonian reflecting telescope, the primary mirror is usually placed on an optical axis adjustment device consisting of a primary mirror mount and a secondary mirror cage. Currently, common optical axis adjustment devices have the following shortcomings: (1) The diameter of the inner side of the integrally machined primary mirror tray and collar is fixed, and the primary mirror material is fragile. Therefore, when placing the primary mirror, it is necessary to fill it with cushioning material to avoid damage to the primary mirror. However, even if cushioning material is filled, there will still be a certain range of movement, and there is still a risk of damage due to collision. (2) The six adjustment screws of the primary mirror are distributed in an equilateral triangle at the bottom and form three groups. The two adjustment screws in each group realize the push / pull function. Since the push / pull function requires separate operation of the adjustment screws, the operation is relatively cumbersome. Utility Model Content
[0004] To solve the above problems, the present invention adopts the following technical solution: a novel optical axis adjustment device, comprising: a primary mirror mount, a secondary mirror cage, a primary mirror body, and a primary mirror tube;
[0005] The primary lens mount includes a base plate, a sealing plate, a primary lens tray, a primary lens collar, a primary lens pressure ring, a tension adjustment ring, several claws, and several adjustment knobs. The sealing plate is disposed on one side of the base plate. Several adjustment knobs pass through the base plate and the sealing plate and are connected to the primary lens tray. The primary lens body is disposed on the primary lens tray. The primary lens collar is sleeved on the outside of the primary lens body. Several claws are disposed on the primary lens collar, and the tension adjustment ring is located on the outside of the several claws. The primary lens pressure ring is disposed on the side of the primary lens body away from the primary lens tray.
[0006] The main lens barrel is fitted around the outside of the main lens body, and the secondary lens cage is disposed outside the main lens barrel.
[0007] Furthermore, the number of grippers is four, and the four grippers are detachably and equidistantly disposed on the main mirror tray.
[0008] Furthermore, the number of adjustment knobs is three.
[0009] Furthermore, the base plate is provided with a keel and a back plate, one end of the keel is connected to the base plate and the other end is connected to the secondary lens cage, one end of the back plate is connected to the base plate and the other end is connected to the secondary lens cage.
[0010] Furthermore, the base plate is provided with a plurality of first bases, which are equidistantly arranged.
[0011] Furthermore, the secondary mirror cage is provided with a plurality of second bases, which are equidistantly arranged.
[0012] Furthermore, it also includes a plurality of connecting rods, one end of each connecting rod being connected to a first base and the other end being connected to a second base.
[0013] Furthermore, several of the connecting rods are ball-head carbon fiber rods.
[0014] Furthermore, the main mirror pressure ring is provided with four sets of fixing holes, which are equidistant from each other.
[0015] Furthermore, four retainers are detachably provided on the main lens retaining ring, and each retainer part passes through a retaining hole and is fixed on the main lens retaining ring.
[0016] The beneficial effects of this utility model are as follows: Using this new optical axis adjustment device, the base plate, sealing plate, primary mirror tray, primary mirror collar, primary mirror pressure ring, tension adjustment ring, several claws, several adjustment knobs, secondary mirror cage, primary mirror body and primary mirror tube are installed in cooperation. The claws can hold the primary mirror body tightly around its perimeter, avoiding damage to the primary mirror body due to collision caused by a certain range of movement. Furthermore, the adjustment knobs can be used to adjust the primary mirror tray, thereby indirectly adjusting the primary mirror body. The overall adjustment is simple and greatly improves convenience. Attached Figure Description
[0017] The accompanying drawings further illustrate the present invention, but the embodiments in the drawings do not constitute any limitation on the present invention.
[0018] Figure 1 A schematic diagram of a novel optical axis adjustment device provided in one embodiment;
[0019] Figure 2 A schematic diagram of the internal structure of a novel optical axis adjustment device provided in one embodiment;
[0020] Figure 3 A schematic diagram of a primary mirror mount provided in one embodiment;
[0021] Figure 4 A schematic diagram of a gripper connected in one direction according to one embodiment;
[0022] Figure 5 This is a schematic diagram of a secondary mirror cage provided in one embodiment. Detailed Implementation
[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings of the embodiments. This utility model is not limited to the following specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0024] like Figures 1 to 5 As shown, a novel optical axis adjustment device includes: a primary mirror mount 100, a secondary mirror cage 200, a primary mirror body 300, and a primary mirror barrel 400; the primary mirror mount 100 includes a base plate 110, a sealing plate 120, a primary mirror tray 130, a primary mirror collar 140, a primary mirror pressure ring 150, a tension adjustment ring 160, several grippers 170, and several adjustment knobs 180. The sealing plate 120 is disposed on one side of the base plate 110, and the several adjustment knobs 180 pass through the base plate 110 and the sealing plate 120 and are connected to the primary mirror tray 130. 30. The main mirror body 300 is disposed on the main mirror tray 130, the main mirror collar 140 is sleeved on the outside of the main mirror body 300, a plurality of grippers 170 are disposed on the main mirror collar 140, and the tension adjustment ring 160 is located on the outside of the plurality of grippers 170, the main mirror pressure ring 150 is disposed on the side of the main mirror body 300 away from the main mirror tray 130; the main mirror barrel 400 is sleeved on the outside of the main mirror body 300, and the secondary mirror cage 200 is disposed on the outside of the main mirror barrel 400.
[0025] Specifically, there are four gripper claws 170, which are equidistantly and detachably mounted on the main lens tray 130. There are three adjustment knobs 180. A keel 510 and a back plate 520 are provided on the base plate 110. One end of the keel 510 is connected to the base plate 110, and the other end is connected to the secondary lens cage 200. One end of the back plate 520 is connected to the base plate 110, and the other end is connected to the secondary lens cage 200.
[0026] In the above embodiment, a plurality of first bases 610 are provided on the base plate 110, and the plurality of first bases 610 are equidistantly arranged. A plurality of second bases 620 are provided on the secondary lens cage 200, and the plurality of second bases 620 are equidistantly arranged. Furthermore, the novel optical axis adjustment device also includes a plurality of connecting rods 630, one end of each connecting rod 630 being connected to a first base 610 and the other end being connected to a second base 620. Further, all of the connecting rods 630 are ball-end carbon fiber rods.
[0027] It is worth mentioning that the main lens retaining ring 150 has four sets of fixing holes 151, which are equidistant from each other. The main lens retaining ring 150 is detachably equipped with four retainers, each of which passes through one of the fixing holes 151 and is fixed to the main lens collar 140.
[0028] In other words, by separately machining the primary mirror tray 130 and the primary mirror collar 140, and then setting four grippers 170 on the primary mirror tray 130, and setting a tension adjustment ring 160 in the gap between the primary mirror collar 140 and the primary mirror retaining ring 150, when the primary mirror body 300 is installed on the primary mirror tray 130, the four grippers 170 can hold the primary mirror body 300 tightly around its perimeter. Then, by adjusting the primary mirror tray 130 using the adjustment knob 180, the primary mirror body 300 can be indirectly adjusted. The overall adjustment is simple and greatly improves convenience. Furthermore, by using a four-point fixing method on the primary mirror retaining ring 150, four retainers are used to fix the entire primary mirror retaining ring 150, which can reduce the problem of stress concentration. That is to say, the retainers can be implemented using existing technology, such as tightening and fixing with fixing bolts, which will not be described in detail in this embodiment. It is worth mentioning that by using four 170-degree grippers, the stress area can be increased significantly, the stress on the 300-degree lens of the primary mirror body can be reduced, the high-precision surface shape of the lens can be maintained, and better imaging can be achieved during astronomical observation.
[0029] In the above embodiment, a crosshair 700 is provided on the secondary lens cage 200, and a spring is placed in the middle of the contact point between the secondary lens cage 200 and the crosshair 700. That is, a gap is added by placing the spring. However, due to the spring, the secondary lens cage 200 can be self-adjusted, that is, the angle of the secondary lens on the secondary lens cage 200 can be adjusted without turning the screw.
[0030] In summary, the above embodiments are not limiting embodiments of this utility model. Any modifications or equivalent variations made by those skilled in the art based on the substantive content of this utility model are within the technical scope of this utility model.
Claims
1. A novel optical axis adjustment device, characterized in that, include: Primary mirror mount, secondary mirror cage, primary mirror body, and primary mirror tube; The primary lens mount includes a base plate, a sealing plate, a primary lens tray, a primary lens collar, a primary lens pressure ring, a tension adjustment ring, several claws, and several adjustment knobs. The sealing plate is disposed on one side of the base plate. Several adjustment knobs pass through the base plate and the sealing plate and are connected to the primary lens tray. The primary lens body is disposed on the primary lens tray. The primary lens collar is sleeved on the outside of the primary lens body. Several claws are disposed on the primary lens collar, and the tension adjustment ring is located on the outside of the several claws. The primary lens pressure ring is disposed on the side of the primary lens body away from the primary lens tray. The main lens barrel is fitted around the outside of the main lens body, and the secondary lens cage is disposed outside the main lens barrel.
2. The novel optical axis adjustment device according to claim 1, characterized in that: The number of grippers is four, and the four grippers are detachably and equidistantly mounted on the main mirror tray.
3. The novel optical axis adjustment device according to claim 2, characterized in that: The number of adjustment knobs is three.
4. The novel optical axis adjustment device according to claim 3, characterized in that: The base plate is provided with a keel and a back plate. One end of the keel is connected to the base plate and the other end is connected to the secondary lens cage. One end of the back plate is connected to the base plate and the other end is connected to the secondary lens cage.
5. The novel optical axis adjustment device according to claim 4, characterized in that: The base plate is provided with a plurality of first bases, which are equidistantly arranged.
6. The novel optical axis adjustment device according to claim 5, characterized in that: The secondary mirror cage is provided with a plurality of second bases, which are equidistantly arranged.
7. The novel optical axis adjustment device according to claim 6, characterized in that: It also includes several connecting rods, one end of each connecting rod being connected to a first base and the other end being connected to a second base.
8. The novel optical axis adjustment device according to claim 7, characterized in that: Several of the connecting rods are ball-head carbon fiber rods.
9. The novel optical axis adjustment device according to claim 8, characterized in that: The main mirror pressure ring has four sets of fixing holes, which are equidistant from each other.
10. The novel optical axis adjustment device according to claim 9, characterized in that: The main lens retaining ring is detachably provided with four retainers, each of which passes through a retaining hole and is fixed to the main lens collar.