Imaging equipment based on Newton telescope

Abstract

The utility model discloses an imaging device based on a Newton telescope, comprising a lens cone, the outer side of the lens cone is fixedly connected with a handle, the outer side of the lens cone is fixedly connected with a mounting seat, the inner side of the mounting seat is fixedly connected with a primary lens, and one side of the lens cone far away from the mounting seat is fixedly connected with a connecting seat. The outer side of the connecting seat is fixedly connected with an auxiliary mirror. The utility model relates to the technical field of telescopes. According to the device, the coma lens group is arranged to carry out differentiated refraction adjustment on the incident light rays at different angles, and when the light rays are transmitted from the center of a picture to the edge, due to the refractive index characteristics of the lenses and the synergistic effect among the lenses, coma caused by the change of the light ray transmission angle can be accurately compensated, and the image quality is improved. Therefore, the light at the edge part of the picture can be accurately focused and corrected, so that the imaging quality of the edge of the picture is improved, and the whole picture can show a clear and real imaging effect from the center to the edge.

Description

TECHNICAL FIELD

[0001] The utility model relates to telescope technical field, concretely relates to an imaging equipment based on newton telescope. BACKGROUND

[0002] Newton telescope imaging equipment is mainly constituted by lens barrel, primary mirror and secondary mirror etc. in lens barrel. Primary mirror collects and converges light, and secondary mirror reflects and changes propagation direction of light converged by primary mirror. Usually, eyepiece etc. components are also equipped, and imaging observation function of observation target such as celestial body is realized through cooperation of each component.

[0003] In prior art, traditional newton telescope usually directly installs camera on focusing seat to carry out deep space photographing, but the effect of photographing is poor in edge imaging quality, the overall quality of photo is influenced, especially picture edge part, comet aberration phenomenon is prone to occur, leading to decline of imaging quality, object definition reduction, shape distortion etc. of picture edge. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model solves its technical problem by adopting the technical scheme of a kind of imaging equipment based on newton telescope, which comprises: lens barrel, the outside of lens barrel is fixedly connected with handle, the outside of lens barrel is fixedly connected with mounting seat, the inside of mounting seat is fixedly connected with primary mirror, the side of lens barrel away from mounting seat is fixedly connected with connecting seat, the outside of connecting seat is fixedly connected with secondary mirror, lens barrel is the main body frame of whole equipment, and provides stable installation basis for other components. Primary mirror and secondary mirror are located at the inside of lens barrel, primary mirror is fixed on lens barrel by mounting seat, and is responsible for collecting and converging light.

[0005] Comet aberration mirror group, the bottom of comet aberration mirror group is fixedly connected with the outside of lens barrel, the comet aberration mirror group includes base, the inside of base is slidably connected with focusing tube, the inside of focusing tube is fixedly connected with lens seat, the top of lens seat is fixedly connected with camera connecting ring, the bottom of focusing tube is fixedly connected with gasket, the top of gasket is fixedly connected with bottom layer lens, the top of bottom layer lens is fixedly connected with lower spacer ring, the top of lower spacer ring is fixedly connected with middle layer lens, the top of middle layer lens is fixedly connected with upper spacer ring, the top of upper spacer ring is fixedly connected with top layer lens, after light is reflected into comet aberration mirror group by secondary mirror, sequentially passes through bottom layer lens, middle layer lens and top layer lens, and corrects and optimizes light.

[0006] Preferably, the primary mirror and the secondary mirror are located inside the lens barrel, and the comet aberration mirror group is located directly above the secondary mirror. The secondary mirror is installed on the outside of the connecting seat. Its function is to reflect the light collected by the primary mirror for the second time, change the direction of light propagation, and make it accurately enter the subsequent comet aberration mirror group.

[0007] Preferably, the bottom of the base is fixedly connected with the outer side of the lens barrel, the side wall of the bottom layer lens is fixedly connected with the bottom of the inner wall of the lens seat, the inner wall of the lens seat is fixedly connected with the outer wall of the upper spacer, and when light propagates from the center of the picture to the edge, the coma caused by the change of the light propagation angle can be accurately compensated due to the refractive index characteristics of the lenses and the cooperation therebetween.

[0008] Preferably, the inner wall of the lens seat is fixedly connected with the outer wall of the lower spacer, the side wall of the middle layer lens is fixedly connected with the inner wall of the lens seat, and the top of the inner wall of the lens seat is fixedly connected with the side wall of the top layer lens, the distance between the lenses is accurately controlled through the gasket, the lower spacer and the upper spacer, and the light of different angles of incidence can be differentially refracted and adjusted.

[0009] Preferably, the inner side of the base is rotatably connected with an adjusting rod, the center of the adjusting rod is fixedly connected with a gear, the outer wall of the focusing tube is fixedly connected with a toothed plate, the toothed plate is engaged with the gear, the adjusting rod is rotated to drive the gear to slide in the base due to the engagement relationship between the gear and the toothed plate, and the sliding of the focusing tube changes the position of the lens seat and the lenses fixedly connected therewith in the optical path, so that the imaging focus is accurately adjusted.

[0010] Preferably, the inner wall of the base is threadedly connected with a knob, the outer side of the knob is rotatably connected with a clamping plate, the outer wall of the clamping plate is slidably connected with the inner wall of the base, the outer wall of the clamping plate is in contact with the outer wall of the adjusting rod, the clamping plate slides on the inner wall of the base and is separated from the surface of the adjusting rod by rotating the knob threadedly connected with the inner wall of the base, and the adjusting rod is in an unlocked state.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The utility model discloses a coma mirror group, which can differentially refract and adjust light of different angles of incidence, and when light propagates from the center of the picture to the edge, the coma caused by the change of the light propagation angle can be accurately compensated due to the refractive index characteristics of the lenses and the cooperation therebetween, so that the light of the picture edge part can also be accurately focused and corrected, thereby improving the imaging quality of the picture edge and ensuring that the entire picture can present clear and real imaging effects from the center to the edge.

[0013] 2. The utility model discloses a adjusting rod is set up, when needing to adjust the imaging height, the knob is rotated, makes the card board with the surface of adjusting rod to be separated, adjusting rod is in the unlocked state at this moment, subsequently through the adjusting rod rotation gear, the rotation of adjusting rod will drive the focusing tube to slide in the base, the sliding of focusing tube will change the position of each lens on the light path of lens seat and fixedly connected on it, to realize the accurate adjustment to the imaging focus. Through this accurate focusing mechanism, can ensure that no matter the distance of observation target how changes, can make the imaging height reach full image height, namely presents the full height range of observation target completely, avoids appearing imaging truncation or missing part height condition. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front view of the utility model, and

[0015] Figure 2 It is the sectional view of the utility model, and

[0016] Figure 3 It is the front view of the utility model, and

[0017] Figure 4 It is the structure schematic diagram of the achromatic lens group of the utility model, and

[0018] Figure 5 It is the structure schematic diagram of the place A of the utility model, and

[0019] Figure 6 It is the sectional view of the achromatic lens group of the utility model, and

[0020] Figure 7 It is the structure schematic diagram of the lens seat of the utility model.

[0021] In the drawing: 1, lens barrel;2, handle;3, connecting seat;4, vice mirror;5, mounting seat;6, main mirror;7, achromatic lens group;70, base;71, lens seat;72, focusing tube;73, camera connecting ring;74, washer;75, bottom lens;76, middle layer lens;77, top layer lens;78, upper spacer;79, lower spacer;710, adjusting rod;711, toothed plate;712, gear;713, card board;714, knob. DETAILED DESCRIPTION

[0022] The embodiments of the present application are presented by way of example and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application in order to design various embodiments with various modifications for specific use cases.

[0023] Embodiment: Please refer to Figure 1 Figure 7 The present application provides a technical solution: an imaging device based on Newtonian telescope, comprising:

[0024] The outer side of the lens barrel 1 is fixedly connected with the handle 2, the outer side of the lens barrel 1 is fixedly connected with the mounting seat 5, the inner side of the mounting seat 5 is fixedly connected with the primary mirror 6, the side of the lens barrel 1 away from the mounting seat 5 is fixedly connected with the connecting seat 3, the outer side of the connecting seat 3 is fixedly connected with the secondary mirror 4, the camera is assembled with the device through the camera connecting ring 73, the operator can take the device through the handle 2, the lens barrel 1 is the main frame of the whole device, and provides a stable mounting basis for other components. The primary mirror 6 and the secondary mirror 4 are located on the inner side of the lens barrel 1, the primary mirror 6 is fixed on the lens barrel 1 through the mounting seat 5 and is responsible for collecting and converging light rays. The secondary mirror 4 is installed on the outer side of the connecting seat 3, which functions to reflect the light rays converged by the primary mirror 6 for the second time, changes the direction of light propagation, and enables the light to accurately enter the subsequent coma mirror group 7;

[0025] ​The coma lens group 7 is fixedly connected to the outer side of the lens barrel 1, and includes a base 70, a focusing tube 72 slidably connected to the inner side of the base 70, a lens seat 71 fixedly connected to the inner side of the focusing tube 72, a camera connecting ring 73 fixedly connected to the top of the lens seat 71, a gasket 74 fixedly connected to the bottom of the focusing tube 72, a bottom layer lens 75 fixedly connected to the top of the gasket 74, a lower spacer ring 79 fixedly connected to the top of the bottom layer lens 75, a middle layer lens 76 fixedly connected to the top of the lower spacer ring 79, an upper spacer ring 78 fixedly connected to the top of the middle layer lens 76, and a top layer lens 77 fixedly connected to the top of the upper spacer ring 78. The main mirror 6 and the secondary mirror 4 are located on the inner side of the lens barrel 1, and the coma lens group 7 is located directly above the secondary mirror 4. The bottom of the base 70 is fixedly connected to the outer side of the lens barrel 1, the side wall of the bottom layer lens 75 is fixedly connected to the bottom of the inner wall of the lens seat 71, the inner wall of the lens seat 71 is fixedly connected to the outer wall of the upper spacer ring 78. The inner wall of the lens seat 71 is fixedly connected to the outer wall of the lower spacer ring 79, the side wall of the middle layer lens 76 is fixedly connected to the inner wall of the lens seat 71, and the top of the inner wall of the lens seat 71 is fixedly connected to the side wall of the top layer lens 77. After the light is reflected by the secondary mirror 4 and enters the coma lens group 7, it will pass through the bottom layer lens 75, the middle layer lens 76, and the top layer lens 77 in sequence to correct and optimize the light. The distance between each lens is accurately controlled by the gasket 74, the lower spacer ring 79, and the upper spacer ring 78, which can differentiate the refraction adjustment of light rays at different angles. When the light propagates from the center to the edge of the picture, the refractive index characteristics of each lens and their synergistic effect can accurately compensate for the coma caused by the change in the propagation angle of the light, so that the light at the edge of the picture can also be accurately focused and corrected, thereby improving the imaging quality of the picture edge and ensuring that the entire picture from the center to the edge can present a clear and realistic imaging effect.

[0026] The inner side of the base 70 is rotationally connected with an adjusting rod 710, the center of the adjusting rod 710 is fixedly connected with a gear 712, the outer wall of the focusing tube 72 is fixedly connected with a toothed plate 711, the toothed plate 711 is engaged with the gear 712, the inner wall of the base 70 is threadedly connected with a knob 714, the outer side of the knob 714 is rotationally connected with a clamping plate 713, the outer wall of the clamping plate 713 is slidably connected with the inner wall of the base 70, and the outer wall of the clamping plate 713 is in contact with the outer wall of the adjusting rod 710; when it is necessary to adjust the imaging height, the knob 714 threadedly connected with the inner wall of the base 70 is rotated, so that the clamping plate 713 slides on the inner wall of the base 70 and is separated from the surface of the adjusting rod 710; at this time, the adjusting rod 710 is in an unlocked state, and then the gear 712 is rotated through the adjusting rod 710; since the gear 712 is engaged with the toothed plate 711, the rotation of the adjusting rod 710 drives the focusing tube 72 to slide in the base 70; the sliding of the focusing tube 72 changes the position of the lens seat 71 and the lenses fixedly connected thereto in the optical path, so that the imaging focus is accurately adjusted. Through this precise focusing mechanism, it can be ensured that no matter how the distance of the observation target changes, the imaging height can reach the full image height, that is, the full height range of the observation target is fully presented, and the imaging is not truncated or missing part of the height.

[0027] Working principle:

[0028] In use, after the camera is assembled with the device through the camera connecting ring 73, the operator can hold the device by the handle 2, and the lens barrel 1 serves as the main frame of the entire device and provides a stable mounting basis for other components. The main mirror 6 and the auxiliary mirror 4 are located on the inner side of the lens barrel 1, the main mirror 6 is fixed on the lens barrel 1 through the mounting seat 5 and is responsible for collecting and converging light. The auxiliary mirror 4 is installed on the outer side of the connecting seat 3, and its function is to reflect the light converging by the main mirror 6 again, change the direction of light propagation, and enable the light to accurately enter the subsequent coma corrector group 7.

[0029] After the light is reflected into the coma corrector group 7 through the auxiliary mirror 4, it will pass through the bottom lens 75, the middle lens 76 and the top lens 77 in sequence to correct and optimize the light. The distance between the lenses is accurately controlled through the gasket 74, the lower spacer 79 and the upper spacer 78, and the light of different angles of incidence can be adjusted differently. When the light propagates from the center of the picture to the edge, the refractive index characteristics of the lenses and their synergistic effect can accurately compensate for the coma caused by the change in the angle of light propagation, so that the light at the edge of the picture can also be accurately focused and corrected, thereby improving the imaging quality of the picture edge and ensuring that the entire picture from the center to the edge can present a clear and true imaging effect.

[0030] When the imaging height needs to be adjusted, the knob 714 is rotated to threadedly connect with the inner wall of the base 70, so that the card plate 713 slides on the inner wall of the base 70 and is separated from the surface of the adjusting rod 710, at this time the adjusting rod 710 is in an unlocked state, then the adjusting rod 710 rotates the gear 712, and due to the meshing relationship between the gear 712 and the toothed plate 711, the rotation of the adjusting rod 710 drives the focusing tube 72 to slide in the base 70; the sliding of the focusing tube 72 changes the position of the lens seat 71 and each lens fixedly connected thereon in the optical path, so as to realize the accurate adjustment of the imaging focus. Through this accurate focusing mechanism, it can be ensured that no matter how the distance of the observation target changes, the imaging height can reach the full image height, that is, the full height range of the observation target is completely presented, and the imaging is not truncated or missing part of the height.

[0031] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. An imaging device based on a Newtonian telescope, characterized in that, Include: The outer side of the lens barrel (1) is fixedly connected with the handle (2), the outer side of the lens barrel (1) is fixedly connected with the mounting seat (5), the inner side of the mounting seat (5) is fixedly connected with the primary mirror (6), the side of the lens barrel (1) away from the mounting seat (5) is fixedly connected with the connecting seat (3), the outer side of the connecting seat (3) is fixedly connected with the secondary mirror (4); Coma mirror group (7), the bottom of the coma mirror group (7) is fixedly connected with the outer side of the lens barrel (1), the coma mirror group (7) includes base (70), the inner side of the base (70) is slidably connected with focusing tube (72), the inner side of the focusing tube (72) is fixedly connected with lens seat (71), the top of the lens seat (71) is fixedly connected with camera connecting ring (73), the bottom of the focusing tube (72) is fixedly connected with gasket (74), the top of the gasket (74) is fixedly connected with bottom layer lens (75), the top of the bottom layer lens (75) is fixedly connected with lower spacer ring (79), the top of the lower spacer ring (79) is fixedly connected with middle layer lens (76), the top of the middle layer lens (76) is fixedly connected with upper spacer ring (78), the top of the upper spacer ring (78) is fixedly connected with top layer lens (77).

2. An imaging device based on a Newtonian telescope according to claim 1, characterized in that: The primary mirror (6) and the secondary mirror (4) are located in the inner side of the lens barrel (1), and the coma mirror group (7) is located directly above the secondary mirror (4).

3. An imaging device based on a Newtonian telescope according to claim 1, characterized in that: The bottom of the base (70) is fixedly connected with the outer side of the lens barrel (1), the side wall of the bottom layer lens (75) is fixedly connected with the bottom of the inner wall of the lens seat (71), and the inner wall of the lens seat (71) is fixedly connected with the outer wall of the upper spacer ring (78).

4. The Newtonian telescope based imaging device of claim 1, wherein: The inner wall of the lens seat (71) is fixedly connected with the outer wall of the lower spacer ring (79), the side wall of the middle layer lens (76) is fixedly connected with the inner wall of the lens seat (71), and the top of the inner wall of the lens seat (71) is fixedly connected with the side wall of the top layer lens (77).

5. The Newtonian telescope based imaging device of claim 1, wherein: The inner side of the base (70) is rotatably connected with the adjusting rod (710), the center of the adjusting rod (710) is fixedly connected with the gear (712), the outer wall of the focusing tube (72) is fixedly connected with the toothed plate (711), and the toothed plate (711) is engaged with the gear (712).

6. An imaging device based on a Newtonian telescope according to claim 5, characterized in that: The inner wall of the base (70) is threadedly connected with the knob (714), the outer side of the knob (714) is rotatably connected with the clamping plate (713), the outer wall of the clamping plate (713) is slidably connected with the inner wall of the base (70), and the outer wall of the clamping plate (713) is in contact with the outer wall of the adjusting rod (710).

Images