Reflection type astronomical telescope

Abstract

The utility model discloses a reflection type astronomical telescope, which relates to the technical field of astronomical telescopes and comprises a lens cone, a main lens bracket and a movable frame arranged at one end of the lens cone and coaxially arranged on the inner side of the main lens bracket, a main lens is arranged on the movable frame, a plurality of elastic rings are arranged on the inner wall of the movable frame, and a plurality of first adjusting screw rods are arranged on the main lens bracket in a threaded penetrating manner. One end of each first adjusting screw rod is connected with the corresponding elastic ring; the pair of glasses has the beneficial effects that the angle of the movable frame is independently adjusted through the four first adjusting screw rods arranged on the main glasses frame, and the pointing direction of the main lens is accurately adjusted; three second adjusting screws of the auxiliary mirror bracket independently adjust the angle of the auxiliary mirror seat and accurately adjust the direction of the auxiliary mirror, and the two are matched to accurately align the optical axes of the main mirror and the auxiliary mirror, so that clear imaging is facilitated; the operation mode is simple and convenient, and the observation effect can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of reflecting astronomical telescope technology, specifically a reflecting astronomical telescope. Background Technology

[0002] In the field of astronomical observation, reflecting telescopes, with their unique advantages such as effectively avoiding chromatic aberration and the ability to use large-aperture lenses and multi-mirror mosaic techniques, play a vital role in observing stellar physics and have become the mainstream choice among many astronomical observation instruments. Their working principle involves using a concave mirror to reflect and focus light, and then using a secondary mirror to guide the light to the eyepiece for observation.

[0003] However, some current reflecting telescopes have shortcomings in use. Due to the lack of an effective adjustment structure for the primary and secondary mirrors, it is difficult to ensure that the mirrors are always in optimal working condition during actual use. The primary mirror, as the key component for collecting and initially focusing light, is susceptible to damage if its position or angle is slightly off, resulting in inaccurate light convergence and a blurry image. Similarly, the secondary mirror is responsible for accurately guiding the light converged by the primary mirror to the eyepiece. If its adjustment is inadequate, the light propagation path will deviate, significantly reducing image quality. This not only hinders astronomical observation and affects the accurate observation and research of celestial objects but also diminishes the observation experience for amateur astronomers. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a reflecting astronomical telescope.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A reflecting astronomical telescope, including a telescope tube, comprising:

[0007] The main frame is located at one end of the lens barrel. A movable frame is coaxially arranged on its inner side. The main lens is arranged on the movable frame, and an elastic ring is provided on the inner wall of the movable frame. Several first adjusting screws are threaded through the main frame, and one end of each first adjusting screw is connected to the elastic ring. Each first adjusting screw can be independently screwed in or out to adjust the angle of the movable frame so as to adjust the direction of the main lens.

[0008] A secondary lens holder, located at the other end of the lens barrel, has a cross-shaped structure on its inner wall. A secondary lens mount is coaxially located on the inner side of the secondary lens holder. One end of the secondary lens mount has a secondary lens located at the focal point of the primary lens, and the other end has an elastic sleeve with a nut sleeve embedded inside. A fixing screw is threaded through the cross-shaped structure, and one end of the fixing screw extends into the nut sleeve. A second spring elastically connects the cross-shaped structure and the secondary lens mount. Several second adjusting screws are threaded through the cross-shaped structure, and one end of each second adjusting screw abuts against the secondary lens mount. Each second adjusting screw can be independently screwed in or out to change the angle of the secondary lens mount and adjust the direction of the secondary lens.

[0009] Preferably, there are four first adjusting screws, which are distributed equidistantly around the main frame.

[0010] Preferably, the number of the second adjusting screws is three, and they are arranged in a triangular pattern.

[0011] Preferably, the movable frame is detachably provided with a number of cards, and the cards abut against the main lens to lock the relative position of the main lens and the movable frame.

[0012] Preferably, the outer wall of the lens tube is provided with a focusing eyepiece and a finder lens, and the optical axis of the focusing eyepiece is aligned with the secondary mirror to form a light propagation path.

[0013] Preferably, a clamp is fitted on the lens barrel, and rotating wheels are provided on both sides of the clamp. A placement seat is provided below the lens barrel. The placement seat includes a lower support, an upper support, a turntable, and two semi-circular rotating slots. The upper support is rotatably connected to the lower support through the turntable. The two semi-circular rotating slots are respectively located on the two inner sides of the upper support for placing the corresponding rotating wheels.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by independently adjusting the angle of the movable frame with four first adjusting screws set on the main mirror frame, the pointing of the main mirror can be precisely adjusted; by independently adjusting the angle of the secondary mirror mount with three second adjusting screws on the secondary mirror frame, the pointing of the secondary mirror can be precisely adjusted. The two work together to make the optical axes of the main and secondary mirrors accurately aligned, which facilitates clear imaging; and the operation method is simple and convenient, which can effectively improve the observation effect. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the relevant structure of the lens barrel in this utility model;

[0018] Figure 3 This is a schematic diagram of the main frame of the present invention;

[0019] Figure 4 This is an exploded view of the main frame of the present invention.

[0020] Figure 5 This is a front view of the secondary eyeglass frame in this utility model.

[0021] Figure 6 This is a schematic diagram of the back structure of the secondary eyeglass frame in this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the placement base in this utility model.

[0023] The diagram is labeled as follows: 1. Lens tube; 11. Main frame; 110. Movable frame; 111. Elastic ring; 112. First adjusting screw; 113. First spring; 114. Main lens; 115. Card; 12. Secondary frame; 120. Cross; 121. Secondary lens mount; 122. Secondary lens; 123. Elastic sleeve; 124. Nut sleeve; 125. Fixing screw; 126. Second spring; 127. Second adjusting screw; 13. Focusing eyepiece; 14. Finder scope; 2. Clamp; 21. Rotary wheel; 3. Placement base; 31. Lower support; 32. Upper support; 33. Turntable; 34. Semi-circular groove. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Example

[0026] like Figures 1-7As shown, a reflecting astronomical telescope includes a telescope tube 1, which includes a main frame 11 located at one end of the telescope tube 1. A movable frame 110 is coaxially arranged inside the main frame 110, on which a main mirror 114 is disposed. An elastic ring 111 is provided on the inner wall of the movable frame 110. Several first adjusting screws 112 are threaded through the main frame 11. There are four first adjusting screws 112, which are equidistantly distributed around the main frame 11 in a circumferential direction. One end of each first adjusting screw 112 is connected to the elastic ring 111. Each first adjusting screw 112 can be independently screwed in or out to adjust the angle of the movable frame 110, thereby adjusting the direction of the main mirror 114. Several clips 115 are detachably provided on the movable frame 110, and the clips 115 abut against the main mirror 114 to lock the relative position of the main mirror 114 and the movable frame 110.

[0027] The elastic ring 111 on the inner wall of the movable frame 110 is a key elastic support structure for adjusting the angle of the main lens 114. When the first adjusting screw 112 is screwed in, it squeezes the elastic ring 111, causing it to deform, which in turn causes a slight displacement of the corresponding position of the movable frame 110. When it is screwed out, the elastic ring 111 elastically returns to its original position, pulling the movable frame 110 back to its original position. When the four equidistant first adjusting screws 112 are screwed in or out independently, the angle of the movable frame 110 can be precisely adjusted by the difference in deformation of the elastic ring 111, thereby adjusting the orientation of the main lens 114.

[0028] A secondary lens holder 12 is located at the other end of the lens barrel 1. A cross 120 is provided on its inner wall. A secondary lens seat 121 is coaxially provided on the inner side of the secondary lens holder 12. A secondary lens 122 located at the focal point of the primary lens 114 is provided at one end of the secondary lens seat 121, and an elastic sleeve 123 is embedded at the other end. A nut sleeve 124 is embedded in the elastic sleeve 123. A fixing screw 125 is threaded through the cross 120, and one end of the fixing screw 125 extends into the nut sleeve 124. A second spring 126 is elastically connected between the cross 120 and the secondary lens seat 121. Several second adjusting screws 127 are threaded through the cross 120, and one end of the second adjusting screw 127 abuts against the secondary lens seat 121. There are three second adjusting screws 127, which are triangularly distributed. Each second adjusting screw 127 can be independently screwed in or out to change the angle of the secondary lens seat 121 to adjust the direction of the secondary lens 122.

[0029] The elastic sleeve 123 has good elasticity, which can adapt to the slight positional displacement and angle change of the secondary lens mount 121 when the angle is adjusted, avoiding the adjustment jamming caused by the rigid connection between the secondary lens mount 121 and the fixing screw 125 and the nut sleeve 124. When the second adjusting screw 127 pushes against the secondary lens mount 121, the elastic sleeve 123 will adapt to the angle change of the secondary lens mount 121, providing flexible movement space for the secondary lens mount 121. At the same time, in conjunction with the elastic tension of the second spring 126, the secondary lens mount 121 can stably maintain the new angle after adjustment.

[0030] The outer wall of the lens tube 1 is provided with a focusing eyepiece 13 and a finder mirror 14, and the optical axis of the focusing eyepiece 13 is aligned with the secondary mirror 122 to form a light propagation path.

[0031] The telescope tube 1 is fitted with a clamp 2, and there are rotating wheels 21 on both sides of the clamp 2. The bottom of the telescope tube 1 is provided with a placement seat 3, which includes a lower support 31, an upper support 32, a turntable 33 and two semi-circular rotating grooves 34. The upper support 32 is rotatably connected to the lower support 31 through the turntable 33. The two semi-circular rotating grooves 34 are respectively located on the two inner sides of the upper support 32 and are used to place the corresponding rotating wheels 21, so that the telescope tube 1 can rotate up and down within a certain angle. At the same time, the upper support 32 is rotatably connected to the lower support 31 through the turntable 33, so that the telescope can flexibly adjust the observation direction.

[0032] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A reflecting astronomical telescope, characterized in that, include: The microscope tube includes: The main frame is located at one end of the lens barrel. A movable frame is coaxially arranged on its inner side. The main lens is arranged on the movable frame, and an elastic ring is provided on the inner wall of the movable frame. Several first adjusting screws are threaded through the main frame, and one end of each first adjusting screw is connected to the elastic ring. Each first adjusting screw can be independently screwed in or out to adjust the angle of the movable frame so as to adjust the direction of the main lens. A secondary lens holder, located at the other end of the lens barrel, has a cross-shaped structure on its inner wall. A secondary lens mount is coaxially located on the inner side of the secondary lens holder. One end of the secondary lens mount has a secondary lens located at the focal point of the primary lens, and the other end has an elastic sleeve with a nut sleeve embedded inside. A fixing screw is threaded through the cross-shaped structure, and one end of the fixing screw extends into the nut sleeve. A second spring elastically connects the cross-shaped structure and the secondary lens mount. Several second adjusting screws are threaded through the cross-shaped structure, and one end of each second adjusting screw abuts against the secondary lens mount. Each second adjusting screw can be independently screwed in or out to change the angle of the secondary lens mount and adjust the direction of the secondary lens.

2. A reflecting astronomical telescope according to claim 1, characterized in that: The number of the first adjusting screws is four, and they are distributed at equal intervals around the main frame.

3. A reflecting astronomical telescope according to claim 2, characterized in that: The second adjusting screw has three parts, which are arranged in a triangular pattern.

4. A reflecting astronomical telescope according to claim 1, characterized in that: The movable frame is detachably equipped with several cards, and the cards abut against the main lens to lock the relative position of the main lens and the movable frame.

5. A reflecting astronomical telescope according to claim 1, characterized in that: The outer wall of the lens tube is provided with a focusing eyepiece and a finder lens, and the optical axis of the focusing eyepiece is aligned with the secondary mirror to form a light propagation path.

6. A reflecting astronomical telescope according to claim 1, characterized in that: The lens barrel is fitted with a clamp, and there are rotating wheels on both sides of the clamp. A placement seat is provided below the lens barrel. The placement seat includes a lower support, an upper support, a turntable, and two semi-circular rotating slots. The upper support is rotatably connected to the lower support through the turntable. The two semi-circular rotating slots are respectively located on the two inner sides of the upper support and are used to place the corresponding rotating wheels.

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