Astronomical telescope with high light shielding performance

Abstract

An astronomical telescope with high light shielding performance belongs to the technical field of telescopes and comprises a dust cover, a decorative ring A, a light shielding cover, a decorative ring B, a lens barrel, an objective lens device, a focusing barrel, a focusing device, a reflective mirror, a corner mirror component and a focusing seat. The focusing seat comprises a focusing seat main body, a focusing seat connecting part, a focusing seat bottom and a focusing seat inner tube; one end of the focusing seat connecting part is connected with the focusing seat main body, the other end of the focusing seat connecting part is connected with an outer ring at the bottom of the focusing seat, an inner ring at the bottom of the focusing seat is connected with the right end of the focusing seat inner tube, and the left end of the focusing seat main body is in threaded connection with the right end of the lens cone; the focusing seat inner tube is arranged in the focusing seat main body, and the length of the focusing seat inner tube is smaller than that of the focusing seat; a focusing cylinder spacer ring is arranged in the focusing cylinder, and the focusing cylinder is divided into a left focusing cylinder body and a right focusing cylinder body by the focusing cylinder spacer ring; the right focusing cylinder is arranged in the focusing seat inner tube, and the right focusing cylinder is in clearance fit with the focusing seat inner tube; the beneficial effect of the utility model is that external light is not easy to penetrate into the interior.

Description

Technical Field

[0001] The utility model discloses an astronomical telescope, in particular to an astronomical telescope with high light-shielding performance, belonging to the technical field of telescopes. Background Art

[0002] Astronomical telescopes are important tools for observing space and capturing all kinds of information about the vast space. They are also a popular science device that is often used in popular science education. The barrel of a common astronomical telescope is a single-layer structure, and external light can easily pass through the barrel and enter the focusing barrel inside the barrel, causing an adverse effect on imaging.

[0003] For example, CN 107966803A, which is published as CN 107966803 A and is named as a popular science astronomical telescope, includes a lens barrel, one end of which is provided with an objective lens locking ring, the other end of which is provided with a focusing cup, and an objective lens retaining ring is provided in the lens barrel; the lens barrel includes a main barrel body and a notch cover, the main barrel body is provided with a main half retaining ring, the notch cover is provided with a secondary half retaining ring, the main half retaining ring and the secondary half retaining ring together constitute the objective lens retaining ring, the objective lens retaining ring is provided with an objective lens engaged with the objective lens retaining ring, the objective lens locking ring is engaged with the main barrel body, and the objective lens locking ring is engaged with the notch cover; the focusing cup is provided with a cup hole and a focusing barrel that can slide relative to the cup hole, the focusing barrel passes through the cup hole, the focusing cup is engaged with the lens barrel, the focusing barrel is provided with a first eyepiece retaining ring, and the focusing barrel includes a left half barrel and a right half barrel;

[0004] In the structure of the above-mentioned patent, external light will directly enter the focusing tube through the lens barrel, causing an adverse effect on imaging, which urgently needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide an astronomical telescope that is not easy to transmit light, so as to achieve the purpose that the focusing tube is not directly arranged in the lens barrel, the external light is not easy to penetrate into the interior, and will not cause adverse effects on imaging.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an astronomical telescope with high light-proof performance, comprising a dust cover, a decorative ring A, a light shield, a decorative ring B, a lens barrel, an objective lens device, a focusing barrel, a focusing device, and a reflector corner mirror component, wherein the dust cover, the decorative ring A, the light shield, the decorative ring B, the lens barrel, and the reflector corner mirror component are arranged in sequence from left to right; the objective lens device is arranged on the left side inside the lens barrel, the focusing barrel is arranged between the objective lens device and the reflector corner mirror component, and the focusing device is arranged at the lower right of the focusing barrel;

[0007] It also includes a focusing seat, which is an integrated structure, including a focusing seat body, a focusing seat connecting part, a focusing seat bottom and a focusing seat inner tube; the focusing seat body is cylindrical; the focusing seat connecting part is conical, the focusing seat bottom is annular, and the focusing seat inner tube is cylindrical; one end of the focusing seat connecting part is connected to the focusing seat body, the other end of the focusing seat connecting part is connected to the outer ring of the focusing seat bottom, the inner ring of the focusing seat bottom is connected to the right end of the focusing seat inner tube, and the left end of the focusing seat body is threadedly connected to the right end of the lens barrel;

[0008] The inner tube of the focusing seat is inside the main body of the focusing seat, and the length of the inner tube of the focusing seat is smaller than the length of the focusing seat; a focusing tube spacer ring is arranged inside the focusing tube, and the focusing tube spacer ring divides the focusing tube into a left focusing tube body and a right focusing tube body; the right focusing tube body is arranged inside the inner tube of the focusing seat, and the right focusing tube body and the inner tube of the focusing seat are clearance-matched, and the left focusing tube body extends to the left from the inner tube of the focusing seat to the inside of the focusing seat; since the right focusing tube body is inside the focusing tube and the inner tube of the focusing seat and is doubly protected by the focusing tube and the inner tube of the focusing seat, external light is not easy to penetrate, which is conducive to imaging observation.

[0009] The dust cover includes a large dust cover and a small dust cover; the light shield is provided with a rightward inner convex ring, the decorative ring B is sleeved on the inner convex ring of the light shield, and the inner convex ring sleeved with the light shield is plugged and connected to the left end of the lens barrel; the decorative ring A is plugged and connected to the left end of the light shield, and the large dust cover is plugged and connected to the left end of the decorative ring A; the large dust cover is provided with a center hole, and a leftward convex ring is provided on the center hole, the small dust cover is plugged and connected to the leftward convex ring on the center hole, and the small dust cover covers the center hole.

[0010] The objective lens device comprises an objective lens seat, a main objective lens and an objective lens pressure ring. The objective lens seat is arranged on the left part of the lens barrel, the main objective lens is arranged in the objective lens seat, and the objective lens pressure ring is arranged on the left side of the main objective lens.

[0011] The outer diameter of the focusing seat body is equal to the outer diameter of the lens barrel. A small convex ring is provided on the inner side of the threaded connection end of the focusing seat body and the lens barrel, and connecting rings are provided on the two small convex rings. A lens barrel connecting block is provided at the intersection of the connecting rings, and the lens barrel connecting block is used to connect the tripod.

[0012] The focusing device comprises a focusing seat cover, a screw A, a focusing tooth, two focusing hand wheels, a compression spring, a gear rod pressure cover, a focusing cover and a screw B; a focusing device mounting seat is arranged at the lower right part of the focusing seat, the focusing device mounting seat and the focusing seat are an integrated structure, the focusing seat cover is mounted on the focusing device mounting seat by means of a screw A, and the focusing tooth, the compression spring and the gear rod pressure cover are arranged in the focusing seat cover; a tooth pattern is arranged at the lower side of the focusing barrel, the focusing tooth is arranged below the tooth pattern of the focusing barrel, the focusing tooth is meshed with the tooth pattern, and two focusing hand wheels are arranged at both ends of the focusing tooth; the compression spring is arranged below the focusing tooth, the gear rod pressure cover is arranged below the compression spring, the gear rod pressure cover is tightened by means of a screw A, and the focusing tooth is pressed on the tooth pattern from bottom to top by means of a compression spring, so that the focusing tooth is meshed with the tooth pattern and can rotate; the focusing cover is arranged on the center hole below the focusing seat cover.

[0013] The reflector corner mirror component includes a reflector seat, a corner mirror cover, a self-tapping screw, a reflector, a joint, a locking ring, and a reflector frame; the reflector seat is an integrated structure, including a connecting thread on the left, a light hole in the middle, and a reflector seat plate at the right end, and the reflector seat is arranged horizontally; the corner mirror cover is arranged on the right side of the reflector seat, and the corner mirror cover is fixedly connected to the reflector seat by self-tapping screws; the joint is sleeved on the reflector seat plate, and a joint internal thread is arranged in the left end of the joint; the focusing tube is provided with a focusing tube outer thread at the right end The right end of the focusing tube is screwed into the left end of the joint and is fixedly connected through the external thread of the focusing tube and the internal thread of the joint; the locking ring is provided with an internal thread of the locking ring, the locking ring is sleeved on the left end of the reflector seat, and the locking ring is connected with the connecting thread of the reflector seat through the internal thread of the locking ring; the reflector frame is fixedly arranged on the reflector seat and on the right side of the focusing tube, and the reflector is fixedly arranged on the reflector frame, so that the incident light of the main objective lens passes through the light hole, is reflected by the reflector, is bent, and then emitted along the center line of the eyepiece to the observer's eyes.

[0014] The corner mirror cover is provided with an oblique eyepiece barrel, and the angle α between the oblique eyepiece barrel and the horizontal direction is 45°; a locking screw is provided on the eyepiece barrel, which is used to fix the eyepiece when the eyepiece is inserted into the eyepiece hole.

[0015] The inside of the lens barrel is sprayed with matte paint to eliminate the reflected stray light formed by the inner surface of the lens barrel when light is emitted from the outside of the main objective lens to the inside.

[0016] Compared with the prior art, the beneficial effects of the utility model are: a focusing seat structure including a focusing seat main body, a focusing seat connecting part, a focusing seat bottom and a focusing seat inner tube is provided, and the focusing tube is arranged in the focusing seat inner tube, which effectively prevents external light from penetrating into the interior, is conducive to the normal imaging, and ensures the observation effect of the astronomical telescope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is: a three-dimensional diagram of the utility model;

[0018] Figure 2 It is: the front view of the utility model;

[0019] Figure 3 yes: Figure 2 A magnified view of part A;

[0020] Figure 4 yes: Figure 2 A magnified view of part B;

[0021] Figure 5 Yes: Enlarged view of the reflector corner mirror components.

[0022] Description of the reference numerals: dust cover 1, large dust cover 101, small dust cover 102, decorative ring A 2, light shield 3, inner convex ring 301, decorative ring B 4, lens barrel 5, objective lens device 6, objective lens seat 601, main objective lens 602, objective lens pressure ring 603, focusing barrel 7, focusing barrel spacer ring 701, left focusing barrel body 702, right focusing barrel body 703, focusing device 8, focusing seat cover 801, screw A 802, focusing tooth 803, focusing hand wheel 804, compression spring 805, gear rod pressure cover 806, focusing cover 807, screw B 808, reflector corner mirror component 9, reflector seat 901, corner mirror cover 902, self-tapping screw 903, reflector 904, joint 905, locking ring 906, reflector frame 907, focusing seat 10, focusing seat main body 1001, focusing seat connecting part 1002, focusing seat bottom 1003, focusing seat inner tube 1004, tightening screw 11, connecting ring 12, lens barrel connecting block 13, oblique eyepiece barrel 14. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The "left, right, front, and back" are all relative for the convenience of description. The corresponding structures for changes in the "left, right" or "front, back" directions are all within the scope of patent protection of the utility model.

[0024] like Figures 1 to 5 As shown, a highly light-shielding astronomical telescope, such as Figure 1 and Figure 2As shown, it includes a dust cover 1, a decorative ring A 2, a light shield 3, a decorative ring B 4, a lens barrel 5, an objective lens device 6, a focusing barrel 7, a focusing device 8, and a reflector corner mirror component 9. The dust cover 1, the decorative ring A 2, the light shield 3, the decorative ring B 4, the lens barrel 5 and the reflector corner mirror component 9 are arranged in sequence from left to right; the objective lens device 6 is arranged on the left side inside the lens barrel 5, the focusing barrel 7 is arranged between the objective lens device 6 and the reflector corner mirror component 9, and the focusing device 8 is arranged at the lower right of the focusing barrel 7;

[0025] like Figure 2 As shown, it also includes a focusing seat 10, which is an integrated structure, including a focusing seat body 1001, a focusing seat connecting part 1002, a focusing seat bottom 1003 and a focusing seat inner tube 1004; the focusing seat body 1001 is cylindrical; the focusing seat connecting part 1002 is conical, the focusing seat bottom 1003 is annular, and the focusing seat inner tube 1004 is cylindrical; one end of the focusing seat connecting part 1002 is connected to the focusing seat body 1001, and the other end of the focusing seat connecting part 1002 is connected to the outer ring of the focusing seat bottom 1003, and the inner ring of the focusing seat bottom 1003 is connected to the right end of the focusing seat inner tube 1004, and the left end of the focusing seat body 1001 is threadedly connected to the right end of the lens barrel 5;

[0026] like Figure 2 and Figure 3 As shown, the focusing seat inner tube 1004 is inside the focusing seat main body 1001, and the length of the focusing seat inner tube 1004 is less than the length of the focusing seat 10; a focusing tube spacer ring 701 is provided in the focusing tube 7, and the focusing tube spacer ring 701 divides the focusing tube 7 into a left focusing tube body 702 and a right focusing tube body 703; the right focusing tube body 703 is arranged in the focusing seat inner tube 1004, and the right focusing tube body 703 and the focusing seat inner tube 1004 are clearance-matched, and the left focusing tube body 702 extends to the left from the focusing seat inner tube 1004 to the focusing seat 10; because the right focusing tube body 703 is inside the focusing tube 7 and the focusing seat inner tube 1004, and is doubly protected by the focusing tube 7 and the focusing seat inner tube 1004, external light is not easy to penetrate, which is conducive to imaging observation.

[0027] like Figure 2As shown, the dust cover 1 includes a large dust cover 101 and a small dust cover 102; the light shield 3 is provided with a rightward inner convex ring 301, the decorative ring B 4 is sleeved on the inner convex ring 301 of the light shield 3, the inner convex ring 301 sleeved with the light shield 3 is plugged and connected with the left end of the lens barrel 5; the decorative ring A 2 is plugged and connected with the left end of the light shield 3, and the large dust cover 101 is plugged and connected with the left end of the decorative ring A 2; the large dust cover 101 is provided with a center hole, and a leftward convex ring is provided on the center hole, the small dust cover 102 is plugged and connected with the leftward convex ring on the center hole, and the small dust cover 102 covers the center hole.

[0028] like Figure 2 As shown, the objective lens device 6 includes an objective lens seat 601, a main objective lens 602 and an objective lens pressure ring 603. The objective lens seat 601 is arranged on the left part of the lens barrel 5, the main objective lens 602 is arranged in the objective lens seat 601, and the objective lens pressure ring 603 is arranged on the left side of the main objective lens 602; the main objective lens 602 is a 70500 main objective lens.

[0029] like Figure 1 and Figure 2 As shown, the outer diameter of the focus seat body 1001 is equal to the outer diameter of the lens barrel 5, and a small convex ring is provided on the inner side of the threaded connection end of the focus seat body 1001 and the lens barrel 5, and a connecting ring 12 is provided on the two small convex rings. A lens barrel connecting block 13 is provided at the intersection of the connecting rings 12, and the lens barrel connecting block 13 is used to connect a tripod (not shown in the figure).

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the focusing device 8 includes a focusing seat cover 801, a screw A 802, a focusing tooth 803, two focusing hand wheels 804, a compression spring 805, a gear rod pressure cover 806, a focusing cover 807 and a screw B 808; a focusing device 8 mounting seat is provided at the lower right part of the focusing seat 10, and the focusing device 8 mounting seat and the focusing seat 10 are an integrated structure. The focusing seat cover 801 is fixed by screw A 802 is installed on the focusing device 8 mounting seat, and the focusing tooth 803, the compression spring 805 and the gear rod pressure cover 806 are arranged in the focusing seat cover 801; the lower side of the focusing tube 7 is provided with a tooth pattern, and the focusing tooth 803 is arranged below the tooth pattern of the focusing tube 7, and the focusing tooth 803 is meshed with the tooth pattern, and two focusing hand wheels 804 are respectively arranged at both ends of the focusing tooth 803; the compression spring 805 is arranged below the focusing tooth 803, and the gear rod pressure cover 806 is arranged below the compression spring 805, and the gear rod pressure cover 806 is tightened by the screw A 802, and the focusing tooth 803 is pressed on the tooth pattern from bottom to top by the compression spring 805, so that the focusing tooth 803 is meshed with the tooth pattern and can rotate; the focusing cover 807 is arranged on the center hole below the focusing seat cover 801.

[0031] like Figure 2 and Figure 5 As shown, the reflector corner mirror component 9 includes a reflector seat 901, a corner mirror cover 902, a self-tapping screw 903, a reflector 904, a joint 905, a locking ring 906, and a reflector frame 907; the reflector seat 901 is an integrated structure, including a connecting thread on the left, a light hole in the middle and a reflector seat 901 plate at the right end, and the reflector seat 901 is arranged horizontally; the corner mirror cover 902 is arranged on the right side of the reflector seat 901, and the corner mirror cover 902 is fixedly connected to the reflector seat 901 by a self-tapping screw 903; the joint 905 is sleeved on the reflector seat 901 plate, and the left end of the joint 905 is provided with a joint 905 internal thread; the right end of the focusing tube 7 is provided with A focusing tube 7 is provided with an external thread, the right end of the focusing tube 7 is screwed into the left end of the joint 905, and is fixedly connected through the external thread of the focusing tube 7 and the internal thread of the joint 905; the locking ring 906 is provided with an internal thread of the locking ring 906, the locking ring 906 is sleeved on the left end of the reflector seat 901, and the locking ring 906 is connected to the connecting thread of the reflector seat 901 through the internal thread of the locking ring 906; the reflector frame 907 is fixedly set on the reflector seat 901, to the right of the focusing tube 7, and the reflector 904 is fixedly set on the reflector frame 907, so that the incident light of the main objective lens 602 passes through the light hole, is reflected by the reflector 904, is bent, and then emitted along the center line of the eyepiece to the observer's eyes.

[0032] The corner mirror cover 902 is provided with an oblique eyepiece barrel 14, and the angle α between the oblique eyepiece barrel 14 and the horizontal direction is 45°; the eyepiece barrel 5 is provided with a locking screw 11, which is used to fix the eyepiece when the eyepiece (not shown in the figure) is inserted into the eyepiece hole.

[0033] The interior of the lens barrel 5 is sprayed with matte paint to eliminate the reflected stray light formed by the inner surface of the lens barrel when the light is projected inward from the outside of the main objective lens.

[0034] The embodiments described above are only preferred implementations of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An astronomical telescope with high light-shielding performance, comprising a dust cover, a decorative ring A, a light shield, a decorative ring B, a lens barrel, an objective lens device, a focusing barrel, a focusing device, and a reflector corner mirror component, wherein the dust cover, the decorative ring A, the light shield, the decorative ring B, the lens barrel, and the reflector corner mirror component are arranged in sequence from left to right; the objective lens device is arranged on the left side of the lens barrel, the focusing barrel is arranged between the objective lens device and the reflector corner mirror component, and the focusing device is arranged at the lower right of the focusing barrel, characterized in that: It also includes a focusing seat, which is an integrated structure, including a focusing seat body, a focusing seat connecting part, a focusing seat bottom and a focusing seat inner tube; the focusing seat body is cylindrical; the focusing seat connecting part is conical, the focusing seat bottom is annular, and the focusing seat inner tube is cylindrical; one end of the focusing seat connecting part is connected to the focusing seat body, the other end of the focusing seat connecting part is connected to the outer ring of the focusing seat bottom, the inner ring of the focusing seat bottom is connected to the right end of the focusing seat inner tube, and the left end of the focusing seat body is threadedly connected to the right end of the lens barrel; The inner tube of the focusing seat is inside the main body of the focusing seat, and the length of the inner tube of the focusing seat is smaller than the length of the focusing seat; a focusing tube spacer ring is arranged inside the focusing tube, and the focusing tube spacer ring divides the focusing tube into a left focusing tube body and a right focusing tube body; the right focusing tube body is arranged in the inner tube of the focusing seat, and the right focusing tube body and the inner tube of the focusing seat are clearance-fitted, and the left focusing tube body extends to the left from the inner tube of the focusing seat into the focusing seat.

2. The highly light-shielding astronomical telescope according to claim 1, characterized in that: The dust cover includes a large dust cover and a small dust cover; the light shield is provided with a rightward inner convex ring, the decorative ring B is sleeved on the inner convex ring of the light shield, and the inner convex ring sleeved with the light shield is plugged and connected to the left end of the lens barrel; the decorative ring A is plugged and connected to the left end of the light shield, and the large dust cover is plugged and connected to the left end of the decorative ring A; the large dust cover is provided with a center hole, and a leftward convex ring is provided on the center hole, the small dust cover is plugged and connected to the leftward convex ring on the center hole, and the small dust cover covers the center hole.

3. The highly light-shielding astronomical telescope according to claim 1, characterized in that: The objective lens device comprises an objective lens seat, a main objective lens and an objective lens pressure ring. The objective lens seat is arranged on the left part of the lens barrel, the main objective lens is arranged in the objective lens seat, and the objective lens pressure ring is arranged on the left side of the main objective lens.

4. The highly light-shielding astronomical telescope according to claim 1, characterized in that: The outer diameter of the focusing seat body is equal to the outer diameter of the lens barrel. A small convex ring is respectively arranged on the inner side of the threaded connection end of the focusing seat body and the lens barrel, and a connecting ring is arranged on the two small convex rings. A lens barrel connecting block is arranged at the intersection of the connecting rings.

5. The highly light-shielding astronomical telescope according to claim 1, characterized in that: The focusing device comprises a focusing seat cover, a screw A, a focusing tooth, two focusing hand wheels, a compression spring, a gear rod pressure cover, a focusing cover and a screw B; a focusing device mounting seat is arranged at the lower right part of the focusing seat, the focusing device mounting seat and the focusing seat are an integrated structure, the focusing seat cover is mounted on the focusing device mounting seat by means of a screw A, and the focusing tooth, the compression spring and the gear rod pressure cover are arranged in the focusing seat cover; a tooth pattern is arranged at the lower side of the focusing barrel, the focusing tooth is arranged below the tooth pattern of the focusing barrel, the focusing tooth is meshed with the tooth pattern, and two focusing hand wheels are arranged at both ends of the focusing tooth; the compression spring is arranged below the focusing tooth, the gear rod pressure cover is arranged below the compression spring, the gear rod pressure cover is tightened by means of a screw A, and the focusing tooth is pressed on the tooth pattern from bottom to top by means of a compression spring, so that the focusing tooth is meshed with the tooth pattern; the focusing cover is arranged on the center hole below the focusing seat cover.

6. The highly light-shielding astronomical telescope according to claim 1, characterized in that: The reflector corner mirror component includes a reflector seat, a corner mirror cover, a self-tapping screw, a reflector, a joint, a locking ring, and a reflector frame; the reflector seat is an integrated structure, including a connecting thread on the left, a light hole in the middle, and a reflector seat plate at the right end, and the reflector seat is arranged horizontally; the corner mirror cover is arranged on the right side of the reflector seat, and the corner mirror cover is fixedly connected to the reflector seat by self-tapping screws; the joint is sleeved on the reflector seat plate, and a joint internal thread is arranged in the left end of the joint; the focusing tube is provided with a focusing tube external thread at the right end The right end of the focusing tube is screwed into the left end of the joint and is fixedly connected through the external thread of the focusing tube and the internal thread of the joint; the locking ring is provided with an internal thread of the locking ring, the locking ring is sleeved on the left end of the reflector seat, and the locking ring is connected with the connecting thread of the reflector seat through the internal thread of the locking ring; the reflector frame is fixedly arranged on the reflector seat and on the right side of the focusing tube, and the reflector is fixedly arranged on the reflector frame, so that the incident light of the main objective lens passes through the light hole, is reflected by the reflector, is bent, and then emitted along the center line of the eyepiece to the observer's eyes.

7. The highly light-shielding astronomical telescope according to claim 6, characterized in that: The corner mirror cover is provided with an oblique eyepiece barrel, and the angle between the oblique eyepiece barrel and the horizontal direction is 45 degrees; the eyepiece barrel is provided with a tightening screw.

8. The highly light-shielding astronomical telescope according to claim 1, characterized in that: The inside of the lens barrel is sprayed with matte paint to eliminate the reflected stray light formed by the inner surface of the lens barrel when light is emitted from the outside of the main objective lens to the inside.

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