CN211786543U

CN211786543U - Multifunctional APO optical lens barrel

Info

Publication number: CN211786543U
Application number: CN202020877918.5U
Authority: CN
Inventors: 房勇
Original assignee: Jiaxing Ruixing Optical Instrument Co ltd
Current assignee: Jiaxing Ruixing Optical Instrument Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-10-27
Anticipated expiration: 2030-05-22

Abstract

The utility model relates to a multi-functional APO optical lens cone. The device comprises a main lens cone, a focusing device, a focusing lens, a zenith extension tube, a shooting extension tube, a camera connecting ring, an eyepiece interface and an eyepiece, wherein all parts of the lens cone can be freely combined to be used as the shooting lens cone or an observation lens cone; the main lens cone in including being located the biconcave lens B at middle part, set up biconvex lens A in biconcave lens B's the front end concave surface, set up plano-convex lens C in the rear end concave surface, the accurate burnt mirror in set gradually meniscus lens D, biconvex lens E and meniscus lens F from the front end to the rear end. The utility model discloses overall structure is small and exquisite, except that the photography observation, still is fit for very much and uses as a high quality finder and guide star mirror.

Description

Multifunctional APO optical lens barrel

Technical Field

The utility model relates to a multi-functional APO optical lens cone.

Background

For traditional astronomical photography, the focal length of a commercially available telescope is difficult to be less than 200mm, the selection in the range can only be general camera lenses, and the shooting effect is poor because the camera lenses are not optimized for astronomical photography.

SUMMERY OF THE UTILITY MODEL

The utility model discloses shortcoming to prior art exists provides a multi-functional APO optical lens cone, and the accessory is abundant, and the degree of freedom is high, can reach APO compound achromatism, seek star, take photograph the star, lead four kinds of functions according to the combination of difference, satisfies user's different demands.

Therefore, the utility model adopts the following technical proposal: a multifunctional APO optical lens cone is characterized by comprising a main lens cone, a focusing device, a focusing lens, a zenith extension tube, a shooting extension tube, a camera connecting ring, an eyepiece interface and an eyepiece, wherein all parts of the lens cone can be freely combined to be used as the shooting lens cone or an observation lens cone; the main lens cone in including being located the biconcave lens B at middle part, set up biconvex lens A in biconcave lens B's the front end concave surface, set up plano-convex lens C in the rear end concave surface, the accurate burnt mirror in set gradually meniscus lens D, biconvex lens E and meniscus lens F from the front end to the rear end.

The utility model discloses under the shooting lens cone compound mode, light jets into the direction and is biconvex lens A in proper order, reachs biconcave lens B through the refraction, reachs plano-convex lens C through the refraction, reachs meniscus lens D through the refraction, reachs biconvex lens E through the refraction, reachs meniscus lens F through the refraction. The ratio of the lens caliber to the focal length reaches F5.5, so that the length of the telescope is shortened, the weight is lighter, and the use is more convenient. The lens cone can be sealed, is convenient to maintain and is more suitable for being carried to the field for use.

The biconvex lens A and the plano-convex lens C are ED glass. The double ED glass can eliminate the color difference of red, blue and green,

the other combination mode of the shooting lens cone comprises a main lens cone, a focusing device, a visual extension tube, a shooting extension tube and a camera connecting ring which are sequentially connected.

A 1.25 inch zenith lens is disposed between the eyepiece interface and the eyepiece.

The other combination mode of the observation lens cone comprises a main lens cone, a focusing device, a zenith extension tube, a visual extension tube, an ocular interface and an ocular which are sequentially connected.

The lens barrel component is characterized by further comprising a hoop connected with the lens barrel component, and a dovetail plate is arranged on the lower portion of the hoop.

The lower part of the dovetail plate is provided with a support, and the lower part of the support is provided with a star finding base.

The utility model discloses the conventionality in the past has been broken for when shooing the deep space wide area, also can have very good star point quality performance like other long burnt sections. After the F4.5 full-width focus reducing lens is matched, the special APO photographic lens with the focal length of 180MMF4.5 is formed, and the good quality can be presented no matter scene shooting or celestial body shooting is carried out. The whole structure is small and exquisite, and the high-quality star finder and the high-quality star guide are very suitable for being used as a high-quality star finder and a high-quality star guide.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the overall structure of the shooting mode combination of the present invention with an assembly.

Fig. 3 is a schematic diagram of the shooting mode combination of the present invention.

Fig. 4 is a schematic structural diagram of the shooting mode combination two of the present invention.

Fig. 5 is a schematic structural diagram of the observation mode combination iii of the present invention.

Fig. 6 is a schematic structural diagram of the observation mode combination of the present invention.

Fig. 7 is a light path diagram of the lens assembly of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A multi-functional APO optical lens barrel as shown in fig. 1-3, which comprises a main lens barrel 1, a focusing device 2, an anchor ear 3, a focusing reduction lens 4, a shooting extension tube 5, a dovetail plate 6, a bracket 7, a star mounting and searching base 8, a zenith extension tube 9, a visual extension tube 10, a 1.25 inch eyepiece interface 11, a camera connecting ring 12 and an eyepiece 13.

Each part of the lens cone can be freely combined to be used as a shooting lens cone or an observation lens cone, and one combination mode of the shooting lens cone comprises a main lens cone, a focusing device, a focusing lens, a shooting extension pipe, a camera connecting ring and a camera 14 which are sequentially connected. The device further comprises hoops arranged at two ends of the focus reducing mirror 4, and dovetail plates 6 are arranged at the lower portions of the hoops. The dovetail plates can be connected with corresponding slots. The lower part of the dovetail plate is provided with a bracket, and the lower part of the bracket is provided with a star finding base. The star finding base 8 can be connected with a tripod and other cloud platforms.

As shown in fig. 4, another combination of the taking lens barrel includes a main lens barrel, a focus adjuster, a visual extension tube, a taking extension tube and a camera adapter ring connected in sequence.

As shown in fig. 5, the observation lens barrel includes a main lens barrel, a focusing device, a zenith extension tube, a 1.25 inch eyepiece interface 11, a 1.25 inch zenith lens 15, and an eyepiece 13, which are connected in sequence.

As shown in fig. 6, another combination of the observation lens barrel includes a main lens barrel, a focusing device, a zenith extension tube, a visual extension tube, a 1.25 inch eyepiece interface, and an eyepiece, which are connected in sequence.

As shown in fig. 7, the main barrel includes a biconcave lens B located in the middle, a biconvex lens a is disposed in a front end concave surface of the biconcave lens B, a plano-convex lens C is disposed in a rear end concave surface of the biconcave lens B, and a concave-convex lens D, a biconvex lens E and a meniscus lens F are sequentially disposed in the quasi-focal lens from the front end to the rear end. The biconvex lens A and the plano-convex lens C are ED glass.

The light ray incidence direction is sequentially that of the biconvex lens A, reaches the biconcave lens B through refraction, reaches the plano-convex lens C through refraction, reaches the concave-convex lens D through refraction, reaches the biconvex lens E through refraction, and reaches the concave-convex lens F through refraction. The utility model discloses an apochromatic lens has adopted two ED glass, can eliminate the colour difference of red, blue, green three-colour, and bore and focus ratio reach F5.5, make the length of telescope shorten and weight is lighter, and it is comparatively convenient to use. The lens cone can be sealed, is convenient to maintain and is more suitable for being moved to the field for use, and meanwhile, the sealing pipeline can protect the optical image from being influenced by airflow.

The utility model discloses adopt integration mechanical metal processing technology at mechanical part, the error falls to minimumly between each spare part. So that the matching between each lens and the metal workpiece is more complete. The parts are made of 6061 aluminum alloy, so that the quality of the lens barrel is greatly reduced on the basis of ensuring the strength of the lens barrel, and the influence of the self weight of the lens barrel on the lens is reduced.

The utility model discloses can freely transform into six formula 180mm F4.5APO astronomical photographic lenses or three formula two ED220MM F5.5 high quality compound achromatism APO observation mirror. The conventional routine is broken through, so that when a deep space wide area is shot, the star point quality performance can be very good like other long focal sections. After the F4.5 full-width focus reducing lens is matched, the special APO photographic lens with the focal length of 180MMF4.5 is formed, and the good quality can be presented no matter scene shooting or celestial body shooting is carried out.

The above description is only an example of the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional APO optical lens cone is characterized by comprising a main lens cone, a focusing device, a focusing lens, a zenith extension tube, a shooting extension tube, a camera connecting ring, an eyepiece interface and an eyepiece, wherein all parts of the lens cone can be freely combined to be used as the shooting lens cone or an observation lens cone; the main lens cone in including being located the biconcave lens B at middle part, set up biconvex lens A in biconcave lens B's the front end concave surface, set up plano-convex lens C in the rear end concave surface, the accurate burnt mirror in set gradually meniscus lens D, biconvex lens E and meniscus lens F from the front end to the rear end.

2. The multifunctional APO optical lens barrel of claim 1 wherein the biconvex lens a and the plano-convex lens C are ED glass.

3. The APO optical lens barrel according to claim 1, wherein the main barrel, the focus adjuster, the visual extension tube, the photographing extension tube and the camera adapter are sequentially connected.

4. The multi-functional APO optical column of claim 1 in which a 1.25 inch zenith lens is disposed between the eyepiece interface and the eyepiece.

5. The multifunctional APO optical lens barrel according to claim 1, wherein the observation lens barrel comprises a main lens barrel, a focusing device, a zenith extension tube, a visual extension tube, an ocular interface and an ocular, which are connected in sequence.

6. The multifunctional APO optical lens barrel according to claim 1, further comprising a hoop for connecting the barrel parts, wherein a dovetail plate is disposed at a lower portion of the hoop.

7. The multifunctional APO optical lens barrel according to claim 6, wherein a support is disposed under the dovetail plate, and a star finding base is disposed under the support.