CN105467565A - High-and-low temperature infrared confocal high pixel little-distortion small-volume zooming optical system - Google Patents

High-and-low temperature infrared confocal high pixel little-distortion small-volume zooming optical system Download PDF

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Publication number
CN105467565A
CN105467565A CN201510970132.1A CN201510970132A CN105467565A CN 105467565 A CN105467565 A CN 105467565A CN 201510970132 A CN201510970132 A CN 201510970132A CN 105467565 A CN105467565 A CN 105467565A
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CN
China
Prior art keywords
eyeglass
piece
lens
low temperature
optical system
Prior art date
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Pending
Application number
CN201510970132.1A
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Chinese (zh)
Inventor
刘勇辉
李建华
王晓
王玉荣
全丽伟
潘华
彭同山
王世勇
贾丽娜
张鸿宇
龚俊强
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Union Optech Co Ltd
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Union Optech Co Ltd
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Publication date
Application filed by Union Optech Co Ltd filed Critical Union Optech Co Ltd
Priority to CN201510970132.1A priority Critical patent/CN105467565A/en
Publication of CN105467565A publication Critical patent/CN105467565A/en
Pending legal-status Critical Current

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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
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • 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
    • G02B13/008—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras designed for infrared light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

The invention discloses a high-and-low temperature infrared confocal high pixel little-distortion small-volume zooming optical system, which comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens, a seventh lens, a optical filter and a photosensitive chip that are disposed in order, wherein the first lens, the second lens, the third lens, the fifth lens, the sixth lens and the seventh lens are plastic aspheric lenses, and the fourth lens is a glass spherical lens. The cost is greatly reduced because most lenses are plastic aspheric lenses and only a cheap glass spherical lens is adopted. <{EN3}>The lenses are designed in 1:1:1 according to a wide spectrum, and good image sharpness and color reductibility are provided in visible optical band.

Description

A kind of high/low temperature, infrared confocal, high pixel, little distortion, small size varifocal optical system
[technical field]
The present invention relates to a kind of imaging optical system, particularly relate to and be a kind ofly applied to the high/low temperature of supervisory system, infrared confocal, high pixel, low cost, large aperture, little distortion, small size varifocal optical system.
[background technology]
The shortcoming that current monitoring camera lens used ubiquity is such: camera lens high/low temperature, infrared not confocal, cost is high, and aperture is little, and distortion is large, and volume is large.Only has now minority camera lens, improving in certain when sacrificing other side, such as in order to realize high/low temperature, infrared confocal and high pixel, just employing glass spheric glass or the Glass aspheric eyeglass of a greater number, improve cost, the demand of consumer's low cost can not be met.
In order to solve above-mentioned existing problem, the present invention makes useful improvement.
[summary of the invention]
The object of the invention is to overcome the deficiencies in the prior art part, there is provided a kind of cost low, have the high/low temperature of fabulous image sharpness and color reducibility, infrared confocal, high pixel, low cost, large aperture, little distortion, small size varifocal optical system at visible light wave range.
The object of the present invention is achieved like this:
A kind of high/low temperature, infrared confocal, high pixel, little distortion, small size varifocal optical system, it is characterized in that it includes the first piece of eyeglass set gradually, second piece of eyeglass, 3rd piece of eyeglass, diaphragm, the 4th piece of eyeglass, 5th piece of eyeglass, 6th piece of eyeglass, the 7th piece of eyeglass, optical filter and sensitive chip; Described first piece of eyeglass, second piece of eyeglass, the 3rd piece of eyeglass, the 5th piece of eyeglass, the 6th piece of eyeglass, the 7th piece of eyeglass is plastic aspherical element eyeglass, and the 4th piece of described eyeglass is glass spheric glass.
A kind of high/low temperature as above, infrared confocal, high pixel, little distortion, small size varifocal optical system, it is characterized in that described first piece of eyeglass, second piece of eyeglass, the focal length of the 6th piece of eyeglass is negative, described 3rd piece of eyeglass, 4th piece of eyeglass, the focal length of the 5th piece of eyeglass and the 7th piece of eyeglass is just.
A kind of high/low temperature as above, infrared confocal, high pixel, little distortion, small size varifocal optical system, the aspheric surface face type of its all eyeglass meets following equation: Z=+a 1y 2+ a 2y 4+ a 3y 6+ a 4y 8+ a 5y 10+ a 6y 12+ a 7y 14+ a 8y 16.
A kind of high/low temperature as above, infrared confocal, high pixel, low cost, large aperture, little distortion, small size varifocal optical system, wherein first piece of eyeglass, second piece of eyeglass, the 3rd piece of eyeglass forms the first group; 4th piece of eyeglass, the 5th piece of eyeglass, the 6th piece of eyeglass, the 7th piece of eyeglass forms the second group; Zoom mates diaphragm by first group with diaphragm interval variation simultaneously and second group of interval variation realizes focus adjustment, and in its zooming procedure, stop position is constant.
The present invention compared with prior art has following advantage:
1, existing zoom lens is because realizing focusing, does not generally have infrared, the function that high/low temperature is confocal.After occurring that daytime adjusts clear picture, in evening infrared situation the situation of fuzzy pictures or day temperature higher, there is fuzzy pictures situation when temperature is low to evening, need there is the auxiliary focusing of people constantly, serious waste human resources.
2, existing high/low temperature, infrared confocal, high pixel, focal optical lens are because considering that the confocal function of high/low temperature generally adopts full glass sphere or Glass aspheric to add glass spheric glass, the present invention mainly adopts plastic aspherical element to add that price is lower, the glass spheric glass of quantity one piece, thus cost is significantly reduced.
3, existing high pixel monitoring camera is easily unbalance on image sharpness and color reducibility, and this camera lens adopts wide spectral 1:1:1 design, has fabulous image sharpness and color reducibility at visible light wave range.
[accompanying drawing explanation]
Fig. 1 is schematic diagram of the present invention.
[embodiment]
Describe the present invention below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of high/low temperature, infrared confocal, high pixel, little distortion, small size varifocal optical system, this camera lens adds 1 piece of glass spheric glass by the plastic aspherical element eyeglass within 6 pieces and forms.
This optical system includes first piece of eyeglass, 1, second piece of eyeglass the 2, three piece of eyeglass 3 set gradually, diaphragm 4, the 4th piece of eyeglass the 5, five piece of eyeglass the 6, six piece of eyeglass the 7, seven piece of eyeglass 8, optical filter 9 and sensitive chip 10.Described first piece of eyeglass 1, second piece of eyeglass the 2, three piece of eyeglass the 3, five piece of eyeglass the 6, six piece of eyeglass the 7, seven piece of eyeglass 8 is plastic aspherical element eyeglass, and the 4th piece of described eyeglass 5 is glass spheric glass.Wherein the focal length of first piece of eyeglass, 1, second piece of eyeglass the 2, six piece of eyeglass 7 is negative, and the first eyeglass is negative meniscus, and second, six pieces is double-concave negative lens.3rd piece of eyeglass the 3, four piece of eyeglass the 5, five piece of eyeglass 6 and the 7th piece of eyeglass 8 focal length are just.
High/low temperature is confocal to be realized mainly through following methods: the expansion coefficient adopting different plastic materials corresponding is different, bamboo product goes out different face types, when making high/low temperature, face type produces complementary, the focal length variations factor that temperature variation produces is concentrated on glass mirror, thus high/low temperature time image matter is remained unchanged.
Infraredly confocally to realize mainly through following methods: different plastic refractive index Nd, the Abbe number Vd value of reasonable distribution, by reasonable in design type, make camera lens meet the imaging clearly of Infrared under to white light imaging clearly prerequisite simultaneously.
Its high pixel realizes mainly through following approach: 1. high efficiency material adapted, positive and negative according to each lens, reasonably distributes refractive index Nd and Abbe number Vd value, then selects suitable material according to this; 2., while during design, emphasis promotes center resolution, the aberration correction of pay abundant attention surrounding visual field, ensures that whole picture image quality is even; 3. adopt wide spectral 1:1:1 design, thus ensure that high-quality image sharpness and color reducibility.
Be provided with sensitive chip 10 below at the 7th piece of eyeglass 8, insert optical filter 9 at the 7th piece between eyeglass 8 and sensitive chip 10 simultaneously, to filter the veiling glare outside design wave band, and when designing, consider the aberration that optical filter 9 backing material is introduced, corrected, realize best imaging effect.
Actual design case of the present invention below:
The asphericity coefficient in each face:
Wherein formula Z=+a 1y 2+ a 2y 4+ a 3y 6+ a 4y 8+ a 5y 10+ a 6y 12+ a 7y 14+ a 8y 16in c respective radius R inverse namely: 1/R.

Claims (4)

1. a high/low temperature, infrared confocal, high pixel, little distortion, small size varifocal optical system, it is characterized in that it includes the first piece of eyeglass (1) set gradually, second piece of eyeglass (2), 3rd piece of eyeglass (3), diaphragm (4), 4th piece of eyeglass (5), 5th piece of eyeglass (6), 6th piece of eyeglass (7), 7th piece of eyeglass (8), optical filter (9) and sensitive chip (10); Described first piece of eyeglass (1), second piece of eyeglass (2), 3rd piece of eyeglass (3), 5th piece of eyeglass (6), 6th piece of eyeglass (7), 7th piece of eyeglass (8) is plastic aspherical element eyeglass, and the 4th piece of described eyeglass (5) is glass spheric glass.
2. a kind of high/low temperature according to claim 1, infrared confocal, high pixel, little distortion, small size varifocal optical system, it is characterized in that described first piece of eyeglass (1), second piece of eyeglass (2), the focal length of the 6th piece of eyeglass (7) is negative, described 3rd piece of eyeglass (3), 4th piece of eyeglass (5), the focal length of the 5th piece of eyeglass (6) and the 7th piece of eyeglass (8) is just.
3. a kind of high/low temperature according to claim 2, infrared confocal, high pixel, little distortion, small size varifocal optical system, the aspheric surface face type of its all eyeglass meets following equation: Z=+a 1y 2+ a 2y 4+ a 3y 6+ a 4y 8+ a 5y 10+ a 6y 12+ a 7y 14+ a 8y 16.
4. a kind of high/low temperature according to claim 3, infrared confocal, high pixel, little distortion, small size varifocal optical system, wherein first piece of eyeglass (1), second piece of eyeglass (2), the 3rd piece of eyeglass (3) forms the first group; 4th piece of eyeglass (5), the 5th piece of eyeglass (6), the 6th piece of eyeglass (7), the 7th piece of eyeglass (8) forms the second group; Zoom mates diaphragm (4) by first group with diaphragm (4) interval variation simultaneously realizes focus adjustment with second group of interval variation, and in its zooming procedure, stop position is constant.
CN201510970132.1A 2015-12-19 2015-12-19 High-and-low temperature infrared confocal high pixel little-distortion small-volume zooming optical system Pending CN105467565A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106772961A (en) * 2017-03-21 2017-05-31 中山联合光电科技股份有限公司 A kind of pixel high, low cost, infrared completely confocal varifocal optical system
CN107991763A (en) * 2018-01-16 2018-05-04 山东神戎电子股份有限公司 A kind of high definition long-focus LONG WAVE INFRARED camera lens
CN108388004A (en) * 2018-03-26 2018-08-10 河南翊轩光电科技有限公司 A kind of starlight grade high definition day and night confocal optics camera lens
CN108761733A (en) * 2018-07-03 2018-11-06 中山联合光电科技股份有限公司 Large aperture, high pixel, high/low temperature be confocal, double light path optical system
CN109358408A (en) * 2018-11-23 2019-02-19 广东奥普特科技股份有限公司 A kind of wide operating distance high-resolution machine visual lens of big visual field
CN109387926A (en) * 2017-08-04 2019-02-26 先进光电科技股份有限公司 Optical imaging system
WO2019228039A1 (en) * 2018-05-30 2019-12-05 宁波舜宇车载光学技术有限公司 Optical lens
CN110850564A (en) * 2018-08-21 2020-02-28 富士胶片株式会社 Zoom lens and imaging device

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US5054897A (en) * 1989-08-03 1991-10-08 Ricoh Company, Ltd. Plastic zoom lens
US20060109564A1 (en) * 2004-11-17 2006-05-25 Akira Sawamoto Projection zoom lens and projector
CN203480121U (en) * 2013-10-23 2014-03-12 福州开发区鸿发光电子技术有限公司 Low-cost dual-waveband optical zoom lens
CN104880808A (en) * 2015-06-12 2015-09-02 中山联合光电科技股份有限公司 Small perspective distortion and ultra-wide optical system
CN104898258A (en) * 2015-06-24 2015-09-09 中山联合光电科技股份有限公司 High-low-temperature, infrared-confocal, super-small-distortion and super-wide-angle optical system
CN205384401U (en) * 2015-12-19 2016-07-13 中山联合光电科技股份有限公司 High low temperature, infrared confocal, high pixel, little volume zoom optical system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054897A (en) * 1989-08-03 1991-10-08 Ricoh Company, Ltd. Plastic zoom lens
US20060109564A1 (en) * 2004-11-17 2006-05-25 Akira Sawamoto Projection zoom lens and projector
CN203480121U (en) * 2013-10-23 2014-03-12 福州开发区鸿发光电子技术有限公司 Low-cost dual-waveband optical zoom lens
CN104880808A (en) * 2015-06-12 2015-09-02 中山联合光电科技股份有限公司 Small perspective distortion and ultra-wide optical system
CN104898258A (en) * 2015-06-24 2015-09-09 中山联合光电科技股份有限公司 High-low-temperature, infrared-confocal, super-small-distortion and super-wide-angle optical system
CN205384401U (en) * 2015-12-19 2016-07-13 中山联合光电科技股份有限公司 High low temperature, infrared confocal, high pixel, little volume zoom optical system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106772961A (en) * 2017-03-21 2017-05-31 中山联合光电科技股份有限公司 A kind of pixel high, low cost, infrared completely confocal varifocal optical system
CN109387926A (en) * 2017-08-04 2019-02-26 先进光电科技股份有限公司 Optical imaging system
CN109387926B (en) * 2017-08-04 2021-01-15 先进光电科技股份有限公司 Optical imaging system
CN107991763A (en) * 2018-01-16 2018-05-04 山东神戎电子股份有限公司 A kind of high definition long-focus LONG WAVE INFRARED camera lens
CN107991763B (en) * 2018-01-16 2020-08-11 山东神戎电子股份有限公司 High-definition long-focus long-wave infrared lens
CN108388004A (en) * 2018-03-26 2018-08-10 河南翊轩光电科技有限公司 A kind of starlight grade high definition day and night confocal optics camera lens
WO2019228039A1 (en) * 2018-05-30 2019-12-05 宁波舜宇车载光学技术有限公司 Optical lens
CN108761733A (en) * 2018-07-03 2018-11-06 中山联合光电科技股份有限公司 Large aperture, high pixel, high/low temperature be confocal, double light path optical system
CN110850564A (en) * 2018-08-21 2020-02-28 富士胶片株式会社 Zoom lens and imaging device
CN109358408A (en) * 2018-11-23 2019-02-19 广东奥普特科技股份有限公司 A kind of wide operating distance high-resolution machine visual lens of big visual field
CN109358408B (en) * 2018-11-23 2024-02-13 广东奥普特科技股份有限公司 Large-view-field wide-working-distance high-resolution machine vision lens

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Application publication date: 20160406