Observation mirror focusing mechanism
By setting the focus mirror in the focus cylinder of the observation mirror and achieving synchronous movement, the problem of optical axis offset during the focus process of the observation mirror is solved, and the imaging quality and optical performance are improved.
Patent Information
- Application Number
- CN202421672091.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-16
AI Technical Summary
Existing observation mirrors are prone to optical axis deviation during focusing, resulting in a decrease in imaging quality.
A viewing mirror focusing mechanism is designed, including an objective lens barrel, a focus handwheel, an eyepiece cylinder and other components. By setting a first focus mirror and a second focus mirror inside the focus cylinder, and synchronous movement of the focus mirror is achieved by using pins and threads to ensure the stability of the optical axis.
It effectively avoids optical axis offset, improves imaging quality, and ensures excellent optical performance of the observation mirror during focus adjustment.
Smart Images
Figure CN222774693U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical direction of lens production and processing, and specifically relates to a focusing mechanism of an observation mirror. Background Art
[0002] Observation mirrors are widely used lenses. During use, observation mirrors usually require high resolution, large field of view, and excellent optical performance. However, most of the current observation mirrors still have the problem of optical axis change during the focusing process. Simply put, the optical axis is offset, resulting in a decrease in image quality. Utility Model Content
[0003] The purpose of the utility model is to provide an observation mirror focusing mechanism for existing devices to solve the problems raised in the above background technology.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a focusing mechanism of an observation mirror, including an objective lens barrel, a focusing hand wheel, and an eyepiece barrel, characterized in that: a fixed barrel is arranged inside the right side of the objective lens barrel, a focusing barrel is arranged inside the fixed barrel, the focusing hand wheel is close to the outside of the right side of the objective lens barrel, a matching barrel is arranged in the middle section of the focusing hand wheel, the matching barrel and the focusing hand wheel are matched through threads, a pin is arranged on the matching barrel, the pin passes through the fixed barrel and is arranged at a corresponding position outside the focusing barrel, an eyepiece hand wheel is arranged outside the right end of the eyepiece barrel, and an eyepiece focusing barrel is arranged inside the right end of the eyepiece barrel.
[0005] Preferably, a graticule is provided inside the right end of the fixed tube.
[0006] Preferably, a first focusing mirror and a second focusing mirror are arranged in sequence inside the focusing barrel along the optical axis direction. The first focusing mirror is a group of cemented lenses, the object side of the first focusing mirror is a convex-concave lens, the image side of the first focusing mirror is a biconvex lens, and the second focusing mirror is a plano-convex lens with the convex surface facing the object side. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0008] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0009] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.
[0010] A focusing mechanism for an observation mirror comprises an objective lens barrel 1, a focusing hand wheel 2, and an eyepiece barrel 9, wherein: a fixed barrel 13 is arranged inside the right side of the objective lens barrel 1, a focusing barrel 10 is arranged inside the fixed barrel 13, the focusing hand wheel 2 is close to the right side outside of the objective lens barrel 1, a matching barrel 3 is arranged in the middle section inside the focusing hand wheel 2, the matching barrel 3 and the focusing hand wheel 2 are matched by threads, a pin 11 is arranged on the matching barrel 3, the pin 11 passes through the fixed barrel 13 and is arranged at a corresponding position outside the focusing barrel 10, an eyepiece hand wheel 7 is arranged outside the right end of the eyepiece barrel 9, and a focusing barrel 10 is arranged inside the right end of the eyepiece barrel 9 An eyepiece focusing tube 8 is provided, a graticule 12 is provided inside the right end of the fixed tube 13, a first focusing mirror 4 and a second focusing mirror 6 are arranged in sequence inside the focusing tube 10 along the optical axis direction, the first focusing mirror 4 is a group of cemented lenses, the object side of the first focusing mirror 4 is a convex-concave lens, the image side of the first focusing mirror 4 is a double convex lens, the second focusing mirror 6 is a plano-convex lens with the convex surface facing the object side, the structure of the entire telescope is reasonable, and focusing is convenient, the entire structure is designed in the mode of a straight telescope, two groups of focusing mirrors are designed inside the focusing tube 10, and the two groups of focusing mirrors are moved synchronously.
[0011] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0012] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.
Claims
1. A focusing mechanism for an observation mirror, comprising an objective lens barrel (1), a focusing hand wheel (2), and an eyepiece barrel (9), characterized in that: A fixed tube (13) is arranged inside the right side of the objective tube (1), a focusing tube (10) is arranged inside the fixed tube (13), a focusing hand wheel (2) is close to the outside of the right side of the objective tube (1), a matching tube (3) is arranged in the middle section inside the focusing hand wheel (2), the matching tube (3) and the focusing hand wheel (2) are matched through threads, a pin (11) is arranged on the matching tube (3), the pin (11) passes through the fixed tube (13) and is arranged at a corresponding position outside the focusing tube (10), an eyepiece hand wheel (7) is arranged outside the right end of the eyepiece tube (9), and an eyepiece focusing tube (8) is arranged inside the right end of the eyepiece tube (9).
2. The focusing mechanism of the observation mirror according to claim 1, characterized in that: A dividing plate (12) is arranged inside the right end of the fixed tube (13).
3. The focusing mechanism of the observation mirror according to claim 1, characterized in that: A first focusing lens (4) and a second focusing lens (6) are arranged in sequence inside the focusing tube (10) along the optical axis direction. The first focusing lens (4) is a group of cemented lenses. The object side of the first focusing lens (4) is a convex-concave lens with the convex surface facing the object side. The image side of the first focusing lens (4) is a biconvex lens. The second focusing lens (6) is a plano-convex lens with the convex surface facing the object side.