CN115268027A - Relay lens with small Chart width and long test simulation distance and working distance - Google Patents
Relay lens with small Chart width and long test simulation distance and working distance Download PDFInfo
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- CN115268027A CN115268027A CN202211040666.0A CN202211040666A CN115268027A CN 115268027 A CN115268027 A CN 115268027A CN 202211040666 A CN202211040666 A CN 202211040666A CN 115268027 A CN115268027 A CN 115268027A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/005—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having spherical lenses only
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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Abstract
The invention discloses a relay lens with a small Chart width and a long simulation distance working distance, which comprises lenses sequentially arranged from a tested module to a Chart plate along an optical axis, wherein the first lens, the second lens, the fourth lens, the sixth lens and the seventh lens are concave-convex lenses, the third lens is a convex-concave lens, the fifth lens is a plano-concave lens, the first lens is a positive focal lens, and the convex surface of the first lens faces the tested module and faces the Chart plate; the second lens is a positive focal lens, and the convex surface of the second lens faces the tested module, and the concave surface of the second lens faces the Chart plate; the third lens is a negative focus lens, and the convex surface of the third lens faces the tested module, and the concave surface of the third lens faces the Chart plate; the fourth lens is a positive focal lens, and the concave surface of the fourth lens faces the tested module, and the convex surface of the fourth lens faces the Chart plate; the fifth lens is a negative-focus lens, and the concave surface of the fifth lens faces the Chart plate towards the plane of the module to be tested; the sixth lens is a positive focal lens, and the concave surface of the sixth lens faces the tested module, and the convex surface of the sixth lens faces the Chart board; the seventh lens is a positive focal lens, and the concave surface faces the tested module, and the convex surface faces the Chart board.
Description
Technical Field
The invention relates to a relay lens, in particular to a relay lens with a small Chart width test simulation distance and a long working distance.
Background
From the development of the mobile phone lens, the telephoto lens is developed towards the direction of the focal length more, so as to obtain a larger image or a better resolution of a long-distance image, such as a periscopic mobile phone lens; the long-focus lens has a large entrance pupil distance and has a long requirement on the working distance of the relay lens used in cooperation with test analysis; from the enterprise manufacturing end, many applications require the working distance of the relay lens to be long enough, for example, the testing end needs to combine various testing items and the same machine test (such as analysis test, SENSOR dirty and SENSOR bad point test combination, etc.) to save equipment and human resources, and for example, for a lens automatic focusing machine, a certain distance must be left between the lens and the relay lens to realize automatic focusing, and these applications all require the working distance of the relay lens to be long, while the existing relay lens cannot meet the requirements because the working distance is not long enough.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the relay lens with a small Chart width test simulation distance and a long working distance.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the relay lens is characterized by comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from a tested module to a Chart plate along an optical axis, wherein the first lens, the second lens, the third lens, the fourth lens, the sixth lens and the seventh lens are concave-convex lenses, the third lens is a convex-concave lens, the fifth lens is a plano-concave lens, the first lens is a positive focal lens, the concave surface of the first lens faces the tested module, and the convex surface of the first lens faces the Chart plate; the second lens is a positive focal lens, the convex surface of the second lens faces the module to be tested, and the concave surface of the second lens faces the Chart plate; the third lens is a negative-focus lens, and the convex surface of the third lens faces the module to be tested and the concave surface of the third lens faces the Chart plate; the fourth lens is a positive focal lens, the concave surface of the fourth lens faces the module to be tested, and the convex surface of the fourth lens faces the Chart board; the fifth lens is a negative-focus lens, the concave surface of the fifth lens faces the module to be tested, and the plane of the fifth lens faces the Chart board; the sixth lens is a positive focal lens, the concave surface of the sixth lens faces the module to be tested, and the convex surface of the sixth lens faces the Chart board; the seventh lens is a positive focal lens, the concave surface of the seventh lens faces the tested module, the convex surface of the seventh lens faces the Chart board, and the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all spherical lenses.
The lens has a refractive index range: 1.65 to 1.85, abbe number range: 40-60, surface-curvature radius: -180mm to-200 mm; radius of curvature of face two: -50mm to-70 mm; lens refractive index range: 1.65 to 1.85, abbe number range: 40-60, surface-curvature radius: 70 mm-90 mm; the curvature radius of the second surface: 230 mm-250 mm; lens three refractive index range: 1.5 to 1.7, abbe number range: 30-50, plane-curvature radius: 230 mm-250 mm; the curvature radius of the second surface: 70 mm-90 mm; lens four refractive index range: 1.5 to 1.7, abbe number range: 50 to 70, surface-curvature radius: -140mm to-160 mm; the curvature radius of the second surface: -75mm to-95 mm; lens refractive index range five: 1.7 to 1.9, abbe number range: 30-50, plane-curvature radius: -50mm to-70 mm; the second surface is a plane; lens six refractive index range: 1.45-1.65, abbe number range: 50 to 70, surface-curvature radius: -300mm to-320 mm; radius of curvature of face two: -110mm to-130 mm; lens seven refractive index range: 1.45-1.65, abbe number range: 50 to 70, surface-curvature radius: -240mm to-260 mm; the curvature radius of the second surface: -150mm to-170 mm.
The lens has a focal length: f =110mm.
The second focal length of the lens is as follows: f =160mm.
The lens has three focal lengths: f = -185mm.
The lens has four focal lengths: f =260mm.
The five focal lengths of the lens are as follows: f = -75mm.
The six focal lengths of the lens are as follows: f =400mm.
The seven focal lengths of the lens are as follows: f =700mm.
The invention has the beneficial effects that: the invention comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from a tested module to a Chart plate along an optical axis, wherein the first lens, the second lens, the fourth lens, the sixth lens and the seventh lens are concave-convex lenses, the third lens is a convex-concave lens, the fifth lens is a plano-concave lens, the first lens is a positive focal lens, the concave surface of the first lens faces the tested module, and the convex surface of the first lens faces the Chart plate; the second lens is a positive focal lens, the convex surface of the second lens faces the tested module, and the concave surface of the second lens faces the Chart plate; the third lens is a negative focus lens, the convex surface of the third lens faces the tested module, and the concave surface of the third lens faces the Chart plate; the fourth lens is a positive focal lens, the concave surface of the fourth lens faces the module to be tested, and the convex surface of the fourth lens faces the Chart board; the fifth lens is a negative focus lens, the concave surface of the fifth lens faces the tested module, and the plane of the fifth lens faces the Chart board; the sixth lens is a positive focal lens, the concave surface of the sixth lens faces the module to be tested, and the convex surface of the sixth lens faces the Chart board; the seventh lens is a positive focus lens, and the concave surface of the seventh lens faces the module to be tested and the convex surface faces the Chart board.
Through the above optical system structure, the relay lens can realize:
1. the working distance is long and reaches 100mm;
2. the testing distance range is wide and ranges from 0.5 meter to infinity;
3. the field angle is 45 degrees;
the Chart board is small in size and can be made into an integrated light box such as a relay lens, a device for testing Chart and a device for electrically adjusting the testing distance;
5. the requirement on optical design is high, and a structure of 7 pieces of glass is adopted, so that good imaging quality is achieved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is an optical schematic of the present invention.
Detailed Description
Advantages and features of the present disclosure and methods of practicing the same will be set forth by the following embodiments described with reference to the accompanying drawings. This disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the present disclosure is to be limited only by the scope of the claims.
The shapes, sizes, proportions, angles and numbers disclosed in the accompanying drawings for describing embodiments of the present disclosure are by way of example only, and are not intended to be limited to the details shown. Like reference numerals refer to like elements throughout the specification. In the following description, when a detailed description of a related known function or configuration is determined to unnecessarily obscure the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having", and "including" described in this specification, other components may be added unless "only" is used. Unless indicated to the contrary, singular terms may include the plural.
In explaining the elements, although not explicitly described, the elements are understood to include error ranges.
In describing the positional relationship, for example, when the positional relationship is described as "on \8230;," on 8230; "\82303030;," "on 8230;, \823030;," below "and" \8230;, \823030; "adjacent," one or more portions may be arranged between two other portions unless "immediately" or "directly" is used.
In describing the temporal relationship, for example, when the temporal sequence is described as "after" \8230; \8230, then "," next ", and" before "\8230; \8230, before" may include the case of discontinuity unless "just" or "directly" is used.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.
As will be well understood by those skilled in the art, the features of the different embodiments of the present disclosure may be partially or fully coupled or combined with each other and may cooperate with each other and be technically driven in various ways. Embodiments of the present disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.
Referring to fig. 1, the invention discloses a relay lens with a small Chart width and a long working distance for testing a simulation distance, which comprises a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6 and a seventh lens 7 which are sequentially arranged from a tested module 8 to a Chart plate 9 along an optical axis, wherein the other side of the first lens 1 is the tested module 8, namely a mobile phone lens, the other side of the seventh lens 7 is the Chart plate 9, the left side of the tested module 8 is a position where light intersection points are located, the working distance is L, the first lens 1, the second lens 2, the fourth lens 4, the sixth lens 6 and the seventh lens 7 are concave-convex lenses, the third lens 3 is a convex-concave lens, the fifth lens 5 is a plano-concave lens, the first lens 1 is a positive focal lens, the concave surface of the positive focal lens faces the tested module 8, and the convex surface of the positive focal lens faces the Chart plate 9; the second lens 2 is a positive focal lens, and the convex surface of the second lens faces the module 8 to be tested and the concave surface of the second lens faces the Chart plate 9; the third lens 3 is a negative-focus lens, and the convex surface of the third lens faces the module 8 to be tested and the concave surface faces the Chart board 9; the fourth lens 4 is a positive focus lens, and the concave surface of the fourth lens faces the tested module 8 while the convex surface faces the Chart plate 9; the fifth lens 5 is a negative-focus lens, and the concave surface of the fifth lens faces the module 8 to be tested and the plane faces the Chart board 9; the sixth lens 6 is a positive focus lens, and the concave surface of the sixth lens faces the module 8 to be tested and the convex surface faces the Chart board 9; the seventh lens 7 is a positive focus lens and its concave surface faces the module under test 8 and its convex surface faces the Chart board 9.
In the present application, the first lens has a refractive index range of 1: 1.65 to 1.85, abbe number range: 40 to 60, the focal length is preferably: f =110mm, face-radius of curvature: -180mm to-200 mm; the curvature radius of the second surface: -50mm to-70 mm; lens two 2 refractive index range: 1.65 to 1.85, abbe number range: 40 to 60, the focal length is preferably: f =160mm, face-radius of curvature: 70 mm-90 mm; the curvature radius of the second surface: 230 mm-250 mm; lens three 33 refractive index range: 1.5 to 1.7, abbe number range: 30 to 50, the focal length is preferably: f = -185mm, face-radius of curvature: 230mm to 250mm; the curvature radius of the second surface: 70 mm-90 mm; lens four 4 refractive index range: 1.5 to 1.7, abbe number range: 50 to 70, the focal length is preferably: f =260mm, face-radius of curvature: -140mm to-160 mm; the curvature radius of the second surface: -75mm to-95 mm; lens five 5 refractive index range: 1.7 to 1.9, abbe number range: 30 to 50, the focal length is preferably: f = -75mm, face-one radius of curvature: -50mm to-70 mm; the second surface is a plane; lens six 6 refractive index range: 1.45-1.65, abbe number range: 50 to 70, the focal length is preferably: f =400mm, face-radius of curvature: -300mm to-320 mm; radius of curvature of face two: -110mm to-130 mm; lens seven 7 refractive index range: 1.45-1.65, abbe number range: 50 to 70, the focal length is preferably: f =700mm, face-radius of curvature: -240mm to-260 mm; the curvature radius of the second surface: -150mm to-170 mm.
In the present application, the refractive index and the abbe number are preferably, the refractive index of the first lens 1 is: 1.75, the Abbe number is preferably: 50; lens two 2 preferably has a refractive index: 1.75, the Abbe number is preferably: 50; lens three 33 preferably has a refractive index: 1.55, the Abbe number is preferably: 40; lens four 4 refractive index is preferred: 1.6, the Abbe number is preferably: 60, adding a solvent to the mixture; lens five 5 preferably has a refractive index: 1.8, the dispersion coefficient is preferably: 40; lens six 6 refractive index is preferred: 1.55, the Abbe number is preferably: 60; the refractive index of the lens seven 7 is preferably: 1.5, the Abbe number is preferably: 60.
in the present application, the radius of curvature is preferably, the first 1 surface of the lens preferably has a radius of curvature: -190mm; the curvature radius of the second surface is preferably as follows: -60mm; the curvature radius of the second 2 surfaces of the lens is preferably as follows: 80mm; the curvature radius of the second surface is preferably as follows: 240mm; the radius of curvature of the three 33 faces of the lens is preferably: 240mm; the curvature radius of the second surface is preferably as follows: 80mm; the four 4 faces of the lens-radius of curvature is preferably: -150mm; the curvature radius of the second surface is preferably as follows: -85mm; the first radius of curvature of the fifth 5 face of the lens is preferably: -60mm; the six 6 faces of the lens preferably have a radius of curvature: -310mm; the curvature radius of the second surface is preferably as follows: -120mm; the seventh 7 surfaces of the lens preferably have a radius of curvature: -250 mm; the curvature radius of the second surface is preferably as follows: 160mm.
The first lens represents the left side of each lens in fig. 1, and the second lens represents the right side of each lens in fig. 1, and the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all spherical lenses.
To sum up, this patent relay lens working distance is enough long, and the test distance scope is wide, covers the camera lens demand basically, and this patent relay lens Chart size is enough little moreover, can make integral type light boxes such as relay lens, chart, electric regulation test distance device, has also greatly made things convenient for the customer to use when further reducing the space.
The relay lens with the small Chart width test simulation distance and the long working distance provided by the embodiment of the invention is introduced in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. The relay lens is characterized by comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from a tested module to a Chart plate along an optical axis, wherein the first lens, the second lens, the third lens, the fourth lens, the sixth lens and the seventh lens are concave-convex lenses, the third lens is a convex-concave lens, the fifth lens is a plano-concave lens, the first lens is a positive focal lens, the concave surface of the first lens faces the tested module, and the convex surface of the first lens faces the Chart plate; the second lens is a positive focal lens, the convex surface of the second lens faces the module to be tested, and the concave surface of the second lens faces the Chart plate; the third lens is a negative-focus lens, and the convex surface of the third lens faces the module to be tested and the concave surface of the third lens faces the Chart plate; the fourth lens is a positive focal lens, the concave surface of the fourth lens faces the module to be tested, and the convex surface of the fourth lens faces the Chart board; the fifth lens is a negative-focus lens, the concave surface of the fifth lens faces the module to be tested, and the plane of the fifth lens faces the Chart board; the sixth lens is a positive focal lens, the concave surface of the sixth lens faces the tested module, and the convex surface of the sixth lens faces the Chart plate; the seventh lens is a positive focal lens, the concave surface of the seventh lens faces the tested module, the convex surface of the seventh lens faces the Chart board, and the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all spherical lenses.
2. The relay mirror with a small Chart width test simulation distance and a long working distance as claimed in claim 1, wherein: the refractive index range of the lens is as follows: 1.65 to 1.85, abbe number range: 40-60, face-radius of curvature: -180mm to-200 mm; radius of curvature of face two: -50mm to-70 mm; lens refractive index range: 1.65 to 1.85, abbe number range: 40-60, surface-curvature radius: 70 mm-90 mm; radius of curvature of face two: 230 mm-250 mm; lens three refractive index range: 1.5 to 1.7, abbe number range: 30-50, surface-curvature radius: 230mm to 250mm; radius of curvature of face two: 70 mm-90 mm; lens four refractive index range: 1.5 to 1.7, abbe number range: 50-70, face-radius of curvature: -140mm to-160 mm; the curvature radius of the second surface: -75mm to-95 mm; lens refractive index range five: 1.7 to 1.9, abbe number range: 30-50, plane-curvature radius: -50mm to-70 mm; the second surface is a plane; lens six refractive index range: 1.45-1.65, abbe number range: 50 to 70, surface-curvature radius: -300mm to-320 mm; radius of curvature of face two: -110mm to-130 mm; lens seven refractive index range: 1.45-1.65, abbe number range: 50-70, face-radius of curvature: -240mm to-260 mm; the curvature radius of the second surface: -150mm to-170 mm.
3. The relay mirror with a small Chart width test simulation distance and a long working distance as claimed in claim 1, wherein: the focal length of the lens is as follows: f =110mm.
4. The relay mirror with a small Chart width test simulation distance and a long working distance as claimed in claim 1, wherein: the second focal length of the lens is as follows: f =160mm.
5. The relay mirror with a small Chart width test simulation distance and a long working distance as claimed in claim 1, wherein: the three focal lengths of the lens are as follows: f = -185mm.
6. The relay mirror with a small Chart width test simulation distance and a long working distance as claimed in claim 1, wherein: the lens has four focal lengths: f =260mm.
7. The relay mirror with a small Chart width test simulation distance and a long working distance as claimed in claim 1, wherein: the five focal lengths of the lens are as follows: f = -75mm.
8. The relay mirror with a small Chart width test simulation distance and a long working distance as claimed in claim 1, wherein: the six focal lengths of the lens are as follows: f =400mm.
9. The relay mirror with a small Chart width test simulation distance and a long working distance as claimed in claim 1, wherein: the seven focal lengths of the lens are as follows: f =700mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211040666.0A CN115268027A (en) | 2022-08-29 | 2022-08-29 | Relay lens with small Chart width and long test simulation distance and working distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211040666.0A CN115268027A (en) | 2022-08-29 | 2022-08-29 | Relay lens with small Chart width and long test simulation distance and working distance |
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| Publication Number | Publication Date |
|---|---|
| CN115268027A true CN115268027A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211040666.0A Pending CN115268027A (en) | 2022-08-29 | 2022-08-29 | Relay lens with small Chart width and long test simulation distance and working distance |
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| Country | Link |
|---|---|
| CN (1) | CN115268027A (en) |
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2022
- 2022-08-29 CN CN202211040666.0A patent/CN115268027A/en active Pending
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