CN107357030A - A kind of silent frame micro-lens - Google Patents
A kind of silent frame micro-lens Download PDFInfo
- Publication number
- CN107357030A CN107357030A CN201710576624.1A CN201710576624A CN107357030A CN 107357030 A CN107357030 A CN 107357030A CN 201710576624 A CN201710576624 A CN 201710576624A CN 107357030 A CN107357030 A CN 107357030A
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- lens
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- positive
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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
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
A kind of silent frame micro-lens, focal length 100mm, aperture adjustable range are 2.8 to 22, realize that photography enlargement ratio can reach 1 times by microscope group L2 after mobile positive focal length front lens group L1 and negative focal length, nearest photo distance about 300mm.Beneficial effects of the present invention are：Reasonable in design, eyeglass is few, it is easy to accomplish, while ensure the design objective requirement of silent frame micro-lens.
Description
Technical field
The invention belongs to single-lens reflex camera optical technical field, and in particular to a kind of silent frame micro-lens.
Background technology
Single anti-digital camera sensitive chip size digital at present is mostly silent frame（36mmX24mm）With half picture
（22.3X14.9mm）, high-end digital single anti-digital camera sensitive chip size substantially be all silent frame.
The open CN201310608351.6 patents of China, can only meet half picture sensitive chip, it is impossible to meet silent frame
Sensitive chip.
Japanese Laid-Open 2000-214380 patents, focal length are that 100mm silent frames camera lens is more using eyeglass, reach 14.
Micro-lens can be from infinite as far as can closely be imaged well, and when photo distance is nearest, photography is amplified
Multiplying power can reach more than or equal to 1 times.
The content of the invention
The invention aims to overcome deficiency of the prior art, there is provided a kind of silent frame micro-lens.
In order to solve the above technical problems, the technical scheme is that：
A kind of silent frame micro-lens, including microscope group after positive focal length front lens group, negative focal length, COMS sensitive chips protective glass,
COMS sensitive chips, optical axis；Microscope group, COMS sensitive chips protective glass, COMS are photosensitive after the positive focal length front lens group, negative focal length
Chip, optical axis are set gradually from object side according to the order of left-to-right；
The positive focal length front lens group includes：Plano-convex positive lens, bent moon positive lens, bent moon negative lens, glued negative lens, plano-convex are just saturating
Mirror, glued positive lens, diaphragm；The plano-convex positive lens, bent moon positive lens, bent moon negative lens, glued negative lens, plano-convex are just saturating
Mirror, glued positive lens, diaphragm are set gradually from object side according to the order of left-to-right；
Microscope group includes after the negative focal length：Plano-concave negative lens, bent moon positive lens；The plano-concave negative lens, bent moon positive lens are from thing
Side is set gradually according to the order of left-to-right.
Preferred scheme, the glued negative lens are made up of biconcave lens and biconvex lens.
Preferred scheme, the glued positive lens are made up of biconcave lens and biconvex lens.
Beneficial effects of the present invention are：Eyeglass is few, it is easy to accomplish, while ensure that the design objective of silent frame micro-lens will
Ask.
Brief description of the drawings
Accompanying drawing 1 is the optical system diagram that photo distance of the present invention is unlimited distant positions.
Accompanying drawing 2 is the optical aberration that photo distance of the present invention is unlimited distant positions.
Embodiment
The effect of to make to architectural feature of the invention and being reached, has a better understanding and awareness, to preferable
Embodiment and accompanying drawing coordinate detailed description, are described as follows：
Microscope group L2, COMS is photosensitive after a kind of silent frame micro-lens as shown in Figure 1, including positive focal length front lens group L1, negative focal length
Chip protective glass 10, COMS sensitive chips 11, optical axis 12；Microscope group L2, COMS is felt after the positive focal length front lens group L1, negative focal length
Optical chip protective glass 10, COMS sensitive chips 11, optical axis 12 are set gradually from object side according to the order of left-to-right；
The positive focal length front lens group L1 includes：It is plano-convex positive lens 1, bent moon positive lens 2, bent moon negative lens 3, glued negative lens 4, flat
Convex positive lens 5, glued positive lens 6, diaphragm 7；The plano-convex positive lens 1, bent moon positive lens 2, bent moon negative lens 3, gluing are negative saturating
Mirror 4, plano-convex positive lens 5, glued positive lens 6, diaphragm 7 are set gradually from object side according to the order of left-to-right；
Microscope group L2 includes after the negative focal length：Plano-concave negative lens 8, bent moon positive lens 9；The plano-concave negative lens 8, bent moon positive lens
9 set gradually from object side according to the order of left-to-right.
The glued negative lens 4 is made up of biconcave lens and biconvex lens；The glued positive lens 6 is by biconcave lens and double
Convex lens group into.
From it is infinite as far as nearest photo distance when, pass through microscope group L2 after moving positive focal length front lens group L1 and negative focal length to object space
Realize that photography enlargement ratio can reach 1 times, nearest photo distance about 300mm.Silent frame micro-lens focal length is 100mm,
Maximum ring is 2.8, minimum aperture 22.The image planes of the present invention are not limited to COMS sensitive chips, other light-sensitive mediums
Required by this patent in scope, such as silver halide film.Microscope group L2 is that difference is taken the photograph after positive focal length front lens group L1 and negative focal length
Shadow distance carries out aberration compensation by mobile, and positive focal length front lens group L1 is main aberration compensation microscope group, and microscope group L2 is auxiliary after negative focal length
Help aberration compensation microscope group.The present invention is used for correct for optical aberrations using glass of high refractive index and low dispersion.
Photo distance can realize focusing from infinite point to nearby changing by mobile front lens group L1 and rear microscope group L2,
Front lens group L1 and rear microscope group L2 moves to object space.
Front lens group L1 combined focal lengths be on the occasion of, rear microscope group L2 combined focal lengths are negative value,
This lens design is g using wavelength（435.8nm）, F（486.1nm）, d（587.6nm）, C（656.3nm）.
This camera lens uses 1 glass of high refractive index, 2 low dispersions, can effectively spherical aberration corrector and aberration.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
The principle of the simply present invention described in book, it is of the invention without departing from the spirit and scope of the present invention also to have various changes
Change and improve, these changes and improvements are both fallen within the range of claimed invention.The protection domain of application claims by
Appended claims and its equivalent define.
Claims (3)
- A kind of 1. silent frame micro-lens, it is characterised in that：Including microscope group, the photosensitive cores of COMS after positive focal length front lens group, negative focal length Piece protective glass, COMS sensitive chips, optical axis；Microscope group, COMS sensitive chips protection glass after the positive focal length front lens group, negative focal length Glass, COMS sensitive chips, optical axis are set gradually from object side according to the order of left-to-right；The positive focal length front lens group includes：Plano-convex positive lens, bent moon positive lens, bent moon negative lens, glued negative lens, plano-convex are just saturating Mirror, glued positive lens, diaphragm；The plano-convex positive lens, bent moon positive lens, bent moon negative lens, glued negative lens, plano-convex are just saturating Mirror, glued positive lens, diaphragm are set gradually from object side according to the order of left-to-right；Microscope group includes after the negative focal length：Plano-concave negative lens, bent moon positive lens；The plano-concave negative lens, bent moon positive lens are from thing Side is set gradually according to the order of left-to-right.
- A kind of 2. silent frame micro-lens according to claim 1, it is characterised in that：The glued negative lens is saturating by concave-concave Mirror and biconvex lens composition.
- A kind of 3. silent frame micro-lens according to claim 1, it is characterised in that：The glued positive lens is saturating by concave-concave Mirror and biconvex lens composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576624.1A CN107357030B (en) | 2017-07-14 | 2017-07-14 | Full-frame macro lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576624.1A CN107357030B (en) | 2017-07-14 | 2017-07-14 | Full-frame macro lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107357030A true CN107357030A (en) | 2017-11-17 |
| CN107357030B CN107357030B (en) | 2019-12-13 |
Family
ID=60293001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710576624.1A Active CN107357030B (en) | 2017-07-14 | 2017-07-14 | Full-frame macro lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107357030B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04152315A (en) * | 1990-10-16 | 1992-05-26 | Nikon Corp | Camera capable of panoramic shot |
| US5229887A (en) * | 1990-10-05 | 1993-07-20 | Nikon Corporation | Compact zoom lens |
| CN1068435C (en) * | 1994-09-06 | 2001-07-11 | 佳能株式会社 | Zoom lens |
| CN200983033Y (en) * | 2006-12-13 | 2007-11-28 | 秦皇岛视听机械研究所 | Film ultra-short focus projection lens |
| JP2008020656A (en) * | 2006-07-13 | 2008-01-31 | Sigma Corp | Macro lens |
| CN104020551B (en) * | 2014-05-22 | 2016-08-17 | 秦皇岛视听机械研究所 | Only use the numeral short out-of-focus projection camera lens of two kinds of optical materials |
-
2017
- 2017-07-14 CN CN201710576624.1A patent/CN107357030B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5229887A (en) * | 1990-10-05 | 1993-07-20 | Nikon Corporation | Compact zoom lens |
| JPH04152315A (en) * | 1990-10-16 | 1992-05-26 | Nikon Corp | Camera capable of panoramic shot |
| CN1068435C (en) * | 1994-09-06 | 2001-07-11 | 佳能株式会社 | Zoom lens |
| JP2008020656A (en) * | 2006-07-13 | 2008-01-31 | Sigma Corp | Macro lens |
| CN200983033Y (en) * | 2006-12-13 | 2007-11-28 | 秦皇岛视听机械研究所 | Film ultra-short focus projection lens |
| CN104020551B (en) * | 2014-05-22 | 2016-08-17 | 秦皇岛视听机械研究所 | Only use the numeral short out-of-focus projection camera lens of two kinds of optical materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107357030B (en) | 2019-12-13 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Wenjing Inventor after: Zhang Kuan Inventor before: Li Wenjing |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |