Reticle and optical instrument
By using a reticle made of transparent plastic material, the reticle structure and the main body are integrated into one structure, which solves the problems of poor light sensitivity and complex processing of existing reticles, and realizes low-cost optical instrument applications.
Patent Information
- Application Number
- CN202422135009.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-30
AI Technical Summary
Existing reticles are made of electroplated or vapor-plated chromium metal, which has poor light sensitivity, insufficient coating adhesion, is prone to oxidation, and is complex and costly to process.
The reticle is made of transparent plastic, with the reticle structure and body being an integral part of the design. It is formed by injection molding or machining, simplifying the manufacturing process and reducing costs.
This invention achieves a simple reticle structure, convenient processing, low cost, and applicability to various optical instruments, thereby reducing the manufacturing cost of optical instruments.
Smart Images
Figure CN223179740U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reticles, and particularly relates to a reticle and an optical instrument with the reticle. Background Art
[0002] In the related art, the reticle is plated or vapor-deposited with chromium metal. The reticle with such a structure is not very sensitive to light, and an external light source is required during use. In some special fields, such a reticle will not be able to achieve the expected goal; the structure of the existing reticle is to plate or vapor-deposit chromium metal on a substrate, and the adhesion of the coating cannot meet the requirements, it is easy to fall off, and it is easy to oxidize, making it unable to be used normally. Moreover, the reticle in the related art must go through processes such as exposure, development, chromium evaporation, and cleaning of the photosensitive glue to process the dividing lines, resulting in inconvenient processing of the dividing lines and a high processing cost of the reticle. Content of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model proposes a reticle, the structure of which is simple, the processing is convenient, and the cost is low.
[0004] The utility model also proposes an optical instrument with the reticle.
[0005] The reticle according to the first aspect embodiment of the utility model includes a body and a dividing line structure. The body is made of transparent plastic material, and the dividing line structure and the body are an integral structure. The body has a first light-transmitting surface and a second light-transmitting surface, and the first light-transmitting surface and the second light-transmitting surface are arranged along the thickness direction of the body; the dividing line structure is arranged on the first light-transmitting surface or the second light-transmitting surface, and the dividing line structure is arranged in a predetermined form. When light passes through the dividing line structure, refraction occurs, or when light passes through the dividing line structure, reflection and refraction occur, so that the light deviates from the incident direction.
[0006] The reticle according to the embodiment of the utility model has at least the following beneficial effects: The reticle of the utility model is made of transparent plastic material, and the dividing line structure and the body are an integral structure. Therefore, the structure is simple, the processing is convenient, and the cost is low.
[0007] According to some embodiments of the utility model, the dividing line structure includes a plurality of dividing line units, and the dividing line units are arranged at intervals along a first direction.
[0008] According to some embodiments of the utility model, the dividing line structure protrudes from the first light-transmitting surface or the second light-transmitting surface.
[0009] According to some embodiments of the present utility model, the dividing line unit has a strip shape, and the cross-sectional shape of the dividing line unit along the central axis direction of the body is triangular.
[0010] According to some embodiments of the present utility model, the dividing line unit has a first side surface and a second side surface, and the included angle between the first side surface and the second side surface is between 5° and 90°.
[0011] According to some embodiments of the present utility model, the body has a cylindrical shape or a polygonal shape.
[0012] According to some embodiments of the present utility model, the dividing line structure further includes a cross-shaped structure unit. One of the cross-shaped structure units is arranged along the first direction and is connected to a plurality of the dividing line units. The other of the cross-shaped structure units is arranged along the second direction, and the first direction and the second direction are perpendicular.
[0013] According to some embodiments of the present utility model, the first light-transmitting surface and the second light-transmitting surface are arranged in parallel.
[0014] According to some embodiments of the present utility model, the dividing line structure is a groove provided on the first light-transmitting surface or the second light-transmitting surface.
[0015] An optical instrument according to an embodiment of the second aspect of the present utility model includes the reticle as described in any one of the above.
[0016] The optical instrument according to an embodiment of the present utility model has at least the following beneficial effects: The reticle adopted by the optical instrument of the present utility model is made of a transparent plastic material, and the dividing line and the body are of an integral structure. Therefore, the structure of the reticle is simple, the processing is convenient, and the cost is low, thereby being able to reduce the manufacturing cost of the optical instrument.
[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings
[0018] The following further describes the present utility model in conjunction with the drawings and embodiments, where:
[0019] Figure 1 is a three-dimensional schematic diagram of a reticle according to an embodiment of the present utility model;
[0020] Figure 2 is Figure 1 the enlarged view at A in
[0021] Figure 3 is a schematic diagram when light enters the air from the reticle of the present utility model;
[0022] Figure 4 Schematic diagram of light incident from air onto the reticle of the present invention.
[0023] Reference numerals in the attached drawings:
[0024] Body 100, first light-transmitting surface 110, second light-transmitting surface 120
[0025] Reticle structure 200, reticle unit 210, first side surface 220, second side surface 230, cross-shaped structure unit 240. Detailed implementation manners
[0026] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.
[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as left and right, etc., is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.
[0028] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.
[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.
[0030] As an important optical element, the reticle is widely used in various optical instruments. By superimposing crosshairs or concentric rings, it provides a position reference to help align the object to be imaged, ensuring the accuracy and clarity of the imaging. Whether it is a telescope, a sight, or a microscope and other optical instruments, the reticle plays a crucial role.
[0031] The main functions of the reticle are calibration, measurement, positioning, and auxiliary observation. The reticle is usually installed between the objective lens and the eyepiece of optical devices such as telescopes, universal tool microscopes, and optical sights. The scale lines and patterns on it help users measure, calibrate, aim, and calibrate the optical system of the device.
[0032] The specific functions of the reticle in different application scenarios
[0033] Telescope: The reticle is installed on the focal plane of the right objective lens of the telescope and affects the length of the right eyepiece by extending the focal length of the objective lens. Although this thin glass theoretically participates in imaging, its main function is to delay the focal length of the objective lens to ensure the clarity of the image.
[0034] Sight: There is usually a crosshair at the center of the aiming reticle. The measurement system can adjust the target image to the center of the crosshair through appropriate adjustment means to achieve the aiming operation of the entire system.
[0035] Microscopes, magnifying glasses, theodolites, etc.: In these optical inspection, measurement, and surveying instruments, the reticle is used to superimpose a crosshair or concentric ring as a position reference to help align the object to be imaged.
[0036] In the related art, the reticle is made of electroplated or vapor-deposited chromium metal. The reticle with this structure is not very sensitive to light and cannot achieve the expected goal; the adhesion of the coating is small, it is easy to fall off, and it is easy to oxidize, making it unable to be used normally. Moreover, the reticle in the related art must go through processes such as exposure, development, chromium evaporation, and cleaning of the photosensitive glue to process the dividing lines, resulting in inconvenient processing of the dividing lines and a high processing cost of the reticle.
[0037] Therefore, the present utility model provides a reticle to simplify the structure of the reticle, facilitate the processing of the reticle, and reduce the processing cost.
[0038] Referring to Figure 1 , the reticle proposed in the embodiment of the present utility model includes a body 100 and a dividing line structure 200. The body 100 is made of transparent plastic material. The body 100 has a first light-transmitting surface 110 and a second light-transmitting surface 120. The first light-transmitting surface 110 and the second light-transmitting surface 120 are arranged along the thickness direction of the body 100. In Figure 1 the illustrated embodiment, the first light-transmitting surface 110 and the second light-transmitting surface 120 are flat mirror surfaces, and the first light-transmitting surface 110 and the second light-transmitting surface 120 are arranged in parallel.
[0039] The dividing line structure 200 and the body 100 are of an integral structure. The integral structure of the dividing line structure 200 and the body 100 can be realized by processes such as die injection molding and machining. Referring to Figure 1, in this embodiment, the crosshair structure 200 is provided on the first light-transmitting surface 110. The crosshair structure 200 is arranged in a predetermined form, that is, the crosshair structure 200 can be set as a cross line, a crosshair, a concentric ring, etc. according to actual needs, and the size of the crosshair structure 200 has a predetermined size specification. When light passes through the crosshair structure 200, refraction occurs, or when light passes through the crosshair structure 200, refraction and reflection occur, so that the light deviates from the incident direction. The light that deviates from the incident direction is refracted onto the inner wall of the optical instrument barrel. The inner wall of the barrel is subjected to light extinction treatment. Thus, the light passing through the crosshair structure 200 does not enter the observer's eyes, and the crosshair structure 200 observed by the observer appears black. Therefore, the size or distance of the object to be measured is measured or determined according to the size specification of the crosshair structure 200.
[0040] It should be noted that the position of the crosshair structure 200 can be set at any position on the first light-transmitting surface 110 or the second light-transmitting surface 120 according to specific needs, and scales or characters can be marked at the crosshair structure 200, which is not limited herein.
[0041] The reticle of the present utility model is made of a transparent plastic material. The crosshair structure 200 and the body 100 are of an integral structure, which can achieve the same effect as the evaporated reticle in the related art. However, the reticle structure of the present utility model is simple, convenient to process, and has a low cost.
[0042] It can be understood that the transparent plastic can adopt the materials commonly used in the related art, such as polymethyl methacrylate (PMMA), polycarbonate (PC), PET, polystyrene (PS), etc.
[0043] It can be understood that in some other embodiments, the crosshair structure 200 can also be provided on the second light-transmitting surface 120. When the crosshair structure 200 is provided on the second light-transmitting surface 120, its structure and the achieved technology are the same as those when provided on the first light-transmitting surface 110, which will not be elaborated herein.
[0044] Refer to Figure 1 , in some embodiments, the crosshair structure 200 includes a plurality of crosshair units 210. The crosshair units 210 are arranged at intervals in the first direction, and there is a predetermined size specification between two adjacent crosshair units 210. In some embodiments, the size between two adjacent crosshair units 210 can be set to 0.1 mm. The overall length dimension of the crosshair structure 200 can be determined according to the number of crosshair units 210 and the accuracy required by the optical instrument to meet the requirements of different optical instruments.
[0045] Refer to Figure 2, in some embodiments, the crosshatch structure 200 protrudes from the first light-transmitting surface 110. The crosshatch structure 200 protruding from the first light-transmitting surface 110 can be processed and formed by die casting. After manufacturing the required reticle mold, mass injection molding can be carried out for production, thereby reducing the cost, with a simple process and less material loss. Alternatively, the main body 100 of the reticle can be processed by die casting first, and then the crosshatch structure 200 can be machined on the main body 100 by mechanical processing.
[0046] In some embodiments, the crosshatch unit 210 is in a strip shape, and the cross-sectional shape of the crosshatch unit 210 along the center line direction of the main body 100 is triangular. The two side surfaces of the triangular crosshatch unit 210 refract and reflect light, so that the light passing through the crosshatch structure 200 deviates from the incident direction after refraction or reflection, and the refracted light deviates from the incident direction is refracted onto the black inner wall of the optical instrument barrel. The black inner wall of the barrel is the color presented after light extinction treatment. Thus, the light passing through the crosshatch structure does not enter the observer's eyes, and the crosshatch structure observed by the observer appears black, so that the size or distance of the object to be measured can be measured or determined according to the size specification of the crosshatch structure.
[0047] Refer to Figures 2 to 4 , in some embodiments, the crosshatch unit 210 has a first side surface 220 and a second side surface 230, and the included angle between the first side surface 220 and the second side surface 230 is between 5° and 90°. The smaller the included angle between the first side surface 220 and the second side surface 230, the larger the incident angle of the light hitting the crosshatch structure 200. The larger the incident angle, the larger the corresponding refraction angle, the greater the deviation direction of the light from the incident direction, and the less likely the light is to enter the observer's eyes. When observing, the color of the line at the crosshatch structure 200 is darker, and it is easier to observe the size of the object to be measured; on the contrary, the larger the included angle between the first side surface 220 and the second side surface 230, the lighter the color of the line at the crosshatch structure 200 when observing, which is not conducive to observing the size of the object to be measured. Thus, the smaller the apex angle of the included angle between the first side surface 220 and the second side surface 230, the better. In a specific embodiment, the included angle between the first side surface 220 and the second side surface 230 is set to 30 degrees, which can meet the requirements of the optical instrument.
[0048] It can be understood that the cross-sectional shape of the crosshatch unit 210 along the center line direction of the main body 100 can also be other shapes, as long as the crosshatch unit 210 can refract or reflect light to make it deviate from the incident direction, so that the light passing through the crosshatch structure does not enter the observer's eyes and the crosshatch structure observed by the observer appears black, all fall within the protection scope of the present invention.
[0049] In some embodiments, the body 100 is in a cylindrical shape. The cylindrical body 100 can be adapted to various optical instruments in the prior art to improve the adaptability of the reticle.
[0050] It can be understood that the body 100 can also be set in a square or other polyhedron shape, which is not limited herein.
[0051] Referring to Figure 3 , light enters the reticle from the second light-transmitting surface 120. The incident light passes through the second light-transmitting surface 120 and hits the first light-transmitting surface 110 with the reticle structure 200. Total internal reflection occurs on one of the inclined surfaces of the triangular prism of the reticle structure 200. The light undergoes total internal reflection again on the other inclined surface of the reticle structure 200, returns to the previous inclined surface, refracts and then exits deviating from the incident direction of the incident light, and hits the inner wall of the lens barrel that has been subjected to light extinction treatment. In this way, the light passing through the reticle structure does not enter the observer's eyes, and the observed reticle structure appears black.
[0052] Referring to Figure 4 , light enters the reticle from the first light-transmitting surface 110 and then exits from the second light-transmitting surface 120. The incident light hits the inclined surface of the triangular prism of the reticle structure 200 on the first light-transmitting surface 110, refracts and enters the body 100 of the reticle, and then exits from the second light-transmitting surface 120. The light exiting from the second light-transmitting surface 120 deviates from the incident direction of the incident light and hits the inner wall of the lens barrel that has been subjected to light extinction treatment. In this way, the light passing through the reticle structure does not enter the observer's eyes, and the observed reticle structure appears black.
[0053] Referring to Figure 1 , in some embodiments, the reticle structure 200 further includes a cross-shaped structure unit 240. One of the cross-shaped structure units 240 is arranged along a first direction and is connected to a plurality of reticle units 210. The other of the cross-shaped structure units 240 is arranged along a second direction, wherein the first direction and the second direction are perpendicular. The cross-shaped structure unit 240 can play an auxiliary role in the reticle unit 210, which is beneficial to accurately observing the size of the object to be observed.
[0054] It can be understood that the cross-sectional shape of the cross-shaped structure unit 240 along is the same as the cross-sectional shape of the reticle unit 210. When the cross-sectional shape of the reticle unit 210 along the central axis direction of the body 100 is triangular, the cross-sectional shape of the cross-shaped structure unit 240 correspondingly is triangular; when the cross-sectional shape of the reticle unit 210 along the central axis direction of the body 100 is other shapes, the cross-sectional shape of the cross-shaped structure unit 240 is set to the corresponding shape.
[0055] In some embodiments, the first light-transmitting surface 110 and the second light-transmitting surface 120 are arranged in parallel. In other embodiments, there is a predetermined angle between the first light-transmitting surface 110 and the second light-transmitting surface 120. As long as the light can be refracted or reflected at the crosshairs unit 210, causing it to deviate from the incident direction so that the light passing through the crosshairs structure does not enter the observer's eyes and the crosshairs structure observed by the observer appears black, all fall within the protection scope of the present utility model.
[0056] In some embodiments, the crosshairs structure 200 is a groove provided on the first light-transmitting surface 110 or the second light-transmitting surface 120. The cross-sectional shape of the groove is triangular or other shapes, and the side surface of the groove can refract or reflect the light, causing it to deviate from the incident direction so that the light passing through the crosshairs structure does not enter the observer's eyes and the crosshairs structure observed by the observer appears black, all fall within the protection scope of the present utility model.
[0057] An embodiment of the present utility model also provides an optical instrument, which includes the reticle described in any one of the above.
[0058] The reticle adopted by the optical instrument of the present utility model is made of transparent plastic material, and the crosshairs structure and the body 100 are of an integral structure. Therefore, the structure of the reticle is simple, the processing is convenient, and the cost is low, thereby being able to reduce the manufacturing cost of the optical instrument.
[0059] It can be understood that the optical instrument of the present utility model can be a telescope, a sight, a microscope, a magnifying glass, a theodolite, etc., which is not limited herein.
[0060] It should be noted that the inner wall of the barrel of the optical instrument is subjected to light extinction treatment. After the light extinction treatment, the inner wall of the barrel can absorb light, and the light refracted to the inner wall of the barrel of the optical instrument after deviating from the incident direction is absorbed. Thus, the light passing through the crosshairs structure does not enter the observer's eyes, and the crosshairs structure observed by the observer appears black, so as to measure or determine the size or distance of the object to be measured according to the size specification of the crosshairs structure.
[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.
[0062] Certainly, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A reticle, characterized in that, Comprising: A body, made of a transparent plastic material, the body having a first light-transmitting surface and a second light-transmitting surface, the first light-transmitting surface and the second light-transmitting surface being arranged along the thickness direction of the body; A dividing line structure, provided on the first light-transmitting surface or the second light-transmitting surface, the dividing line structure and the body being an integral structure, the dividing line structure being arranged in a predetermined form, when light passes through the dividing line structure, refraction occurs, or when light passes through the dividing line structure, reflection and refraction occur, so that the light deviates from the incident direction.
2. The reticle according to claim 1, wherein The dividing line structure includes a plurality of dividing line units, and the dividing line units are arranged at intervals along a first direction.
3. The reticle according to claim 1, characterized in that, The dividing line structure protrudes from the first light-transmitting surface or the second light-transmitting surface.
4. The reticle according to claim 2, wherein The dividing line unit is in a strip shape, and the cross-sectional shape of the dividing line unit along the center line direction of the body is triangular.
5. The reticle according to claim 4, wherein The dividing line unit has a first side surface and a second side surface, and the included angle between the first side surface and the second side surface is between 5° and 90°.
6. The reticle according to claim 1, characterized in that, The body is in a cylindrical shape or a polyhedron shape.
7. The reticle according to claim 2, characterized in that, The dividing line structure further includes a cross-shaped structure unit, one of the cross-shaped structure units is arranged along the first direction and is connected to the plurality of dividing line units, and the other of the cross-shaped structure units is arranged along a second direction, and the first direction and the second direction are perpendicular.
8. The reticle according to claim 1, characterized in that, The first light-transmitting surface and the second light-transmitting surface are arranged in parallel.
9. The reticle according to claim 1, characterized in that, The dividing line structure is a groove provided on the first light-transmitting surface or the second light-transmitting surface.
10. An optical instrument, characterized in that, Including the reticle according to any one of claims 1 to 9.