CN207704185U - The big relay lens optical system of high-precision small range simulated range - Google Patents
The big relay lens optical system of high-precision small range simulated range Download PDFInfo
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- CN207704185U CN207704185U CN201721591141.0U CN201721591141U CN207704185U CN 207704185 U CN207704185 U CN 207704185U CN 201721591141 U CN201721591141 U CN 201721591141U CN 207704185 U CN207704185 U CN 207704185U
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Abstract
This application involves relaying lens heads, include successively from object plane to image planes along optical axis：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens；By instrumentality away to change image distance, the image distance of different location is simulated, to make the camera lens of test pass through the shooting test that the application optical system realizes different focal length.This optical system is by reasonably being arranged in pairs or groups 1 to the 7th lens 7 of the first lens, the characteristics of using each eyeglass self structure, so that the distance of picture of the object through the optical system from short distance simulation to infinity practical adjustments is very short, adjustable range only has 4mm, it shoots object (generally test pattern) only to need within opposite optical system relative movement 4mm, 0.2m can be simulated to infinity by the distance of optical system imaging.
Description
【Technical field】
This application involves the big relay lens optical systems of relaying lens head more particularly to high-precision small range simulated range.
【Background technology】
With the fast development of pick-up lens and chip technology, the chip and camera of high pixel are instead of low pixel
Camera, high-pixel camera module are also required to be detected to remote image quality, and the camera of general high pixel is wanted
3m and more remote image quality are detected, then needs to occupy bigger space with conventional detection method, and uses relay lens
It is then in order to solve this problem, the picture under the different measuring distance states of needs can be shot with relatively short simulated range
Face effectively reduces test space range, reduces cost to be evaluated and tested to the image quality of high-pixel camera；Often
The range of the relay lens of rule is bigger, most of all at tens millimeters or more, can also be occupied in this way for test platform big
Range.
【Invention content】
Bigger for the range that solves relay lens conventional in the prior art, this application provides the simulations of high-precision small range
Relay lens optical system apart from big relay lens optical system and relay lens and should the optical system relay lens.
The application is achieved through the following technical solutions：
The big relay lens optical system of high-precision small range simulated range includes successively along optical axis：First lens, second are thoroughly
Mirror, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens；
The first lens object plane side is plane, and image planes side is convex surface；
The second lens object plane side is plane, and image planes side is concave surface；
The third lens object plane side is concave surface, and image planes side is convex surface；
4th lens object plane side is convex surface, and image planes side is concave surface；
5th lens object plane side is convex surface, and image planes side is convex surface；
6th lens object plane side is concave surface, and image planes side is convex surface；
7th lens object plane side is convex surface, and image planes side is plane.
The big relay lens optical system of high-precision small range simulated range as described above, which also meets as follows
Condition：
(1)1.75<Nd1<1.95；20<Vd1<35；
(2)1.75<Nd2<1.95；20<Vd2<35；
(3)1.45<Nd3<1.60；65<Vd3<85；
(4)1.75<Nd4<1.95；20<Vd4<35；
(5)1.75<Nd5<1.95；20<Vd5<35；
(6)1.45<Nd6<1.60；65<Vd6<85；
(7)1.75<Nd7<1.95；20<Vd7<35.
Wherein, Nd1 is the refractive index of the first lens, and Vd1 is the abbe number of the first lens；Nd2 is the folding of the second lens
Rate is penetrated, Vd2 is the abbe number of the second lens；Nd3 is the refractive index of the third lens, and Vd3 is the abbe number of the third lens；
Nd4 is the refractive index of the 4th lens, and Vd4 is the abbe number of the 4th lens；Nd5 is the refractive index of the 5th lens, and Vd5 is the 5th
The abbe number of lens；Nd6 is the refractive index of the 6th lens, and Vd6 is the abbe number of the 6th lens；Nd7 is the 7th lens
Refractive index, Vd7 are the abbe number of the 7th lens.
The big relay lens optical system of high-precision small range simulated range as described above, first power of lens
It is negative, focal length f1 is -35mm.
The big relay lens optical system of high-precision small range simulated range as described above, second power of lens
It is negative, focal length f2 is -38mm.
The big relay lens optical system of high-precision small range simulated range as described above, the focal power of the third lens
It is negative, focal length f3 is -34mm.
The big relay lens optical system of high-precision small range simulated range as described above, the 4th power of lens
For just, focal length f4 is 35mm.
The big relay lens optical system of high-precision small range simulated range as described above, the 5th power of lens
For just, focal length f5 is 26mm.
The big relay lens optical system of high-precision small range simulated range as described above, the 6th power of lens
It is negative, focal length f6 is -12mm.
The big relay lens optical system of high-precision small range simulated range as described above, the 7th power of lens
For just, focal length f7 is 23mm.
Compared with prior art, the application has the following advantages：
1, this application provides the big relay lens optical system of high-precision small range simulated range, by instrumentality away to
Change image distance, simulate the image distance of different location, different focal length is realized to make the camera lens of test pass through the application optical system
Shooting test.This optical system utilizes each eyeglass itself by the way that the first lens to the 7th lens are reasonably arranged in pairs or groups
The characteristics of structure so that the distance of picture of the object through the optical system from short distance simulation to infinity practical adjustments is very short, adjusts
The distance of section only needs the space of 4mm, and image quality is high, still further provides relay lens, can be widely used in camera lens
It in the occasion or detection device of test, is also convenient for being applied on automatic detection system, the volumetric spaces of equipment can be reduced, improve
The precision of test, and structure can also accomplish compact.
【Description of the drawings】
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present application, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram of the big relay lens optical system of the application high-precision small range simulated range；
Fig. 2 is the imaging schematic diagram of the application；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is the MTF transfer curve figures of the application；
Fig. 5 is the color difference control figure of the application；
Fig. 6 is the spot diameter figure of the application.
【Specific implementation mode】
The technical issues of in order to keep the application solved, technical solution and advantageous effect are more clearly understood, below in conjunction with
The application is further elaborated in accompanying drawings and embodiments.It should be appreciated that specific embodiment described herein is only used
To explain the application, it is not used to limit the application.
The application is achieved through the following technical solutions：
As shown in Figures 1 to 6, the big relay lens optical system of high-precision small range simulated range includes successively along optical axis：
First lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6 and the 7th lens 7；Institute
It is plane to state 1 object plane side of the first lens, and image planes side is convex surface；Second lens, 2 object plane side is plane, and image planes side is concave surface；
3 object plane side of the third lens is concave surface, and image planes side is convex surface；4th lens, 4 object plane side is convex surface, and image planes side is recessed
Face；5th lens, 5 object plane side is convex surface, and image planes side is convex surface；6th lens, 6 object plane side is concave surface, and image planes side is
Convex surface；7th lens, 7 object plane side is convex surface, and image planes side is plane.By instrumentality away to change image distance, simulate not
With the image distance of position, to make the camera lens of test pass through the shooting test that the application optical system realizes different focal length.This optics
System is by reasonably being arranged in pairs or groups 1 to the 7th lens 7 of the first lens, the characteristics of using each eyeglass self structure so that
The distance of picture of the object through the optical system from short distance simulation to infinity practical adjustments is very short, only 4mm, and at image quality
Amount is high, still further provides relay lens, can be widely used on occasion or the detection device of camera lens test, be also convenient for being applied to
On automatic detection system, the volumetric spaces of equipment can be reduced, improve the precision of test, and structure can also accomplish it is small and exquisite tight
It gathers.
Further, the big relay lens optical system of the high-precision small range simulated range also meets following condition：
(1)1.75<Nd1<1.95；20<Vd1<35；(2)1.75<Nd2<1.95；20<Vd2<35；(3)1.45<Nd3<
1.60；65<Vd3<85；(4)1.75<Nd4<1.95；20<Vd4<35；(5)1.75<Nd5<1.95；20<Vd5<35；(6)1.45<
Nd6<1.60；65<Vd6<85；(7)1.75<Nd7<1.95；20<Vd7<35.
Wherein, Nd1 is the refractive index of the first lens 1, and Vd1 is the abbe number of the first lens 1；Nd2 is the second lens 2
Refractive index, Vd2 are the abbe number of the second lens 2；Nd3 is the refractive index of the third lens 3, and Vd3 is the dispersion system of the third lens 3
Number；Nd4 is the refractive index of the 4th lens 4, and Vd4 is the abbe number of the 4th lens 4；Nd5 is the refractive index of the 5th lens 5, Vd5
For the abbe number of the 5th lens 5；Nd6 is the refractive index of the 6th lens 6, and Vd6 is the abbe number of the 6th lens 6；Nd7 is
The refractive index of seven lens 7, Vd7 are the abbe number of the 7th lens 7.The eyeglass abbe number of different refraction materials is not yet
Together, the higher abbe number of refractive index is lower, using each eyeglass attribute difference carry out it is reasonably combined after, after light to image planes
Dispersion range is smaller so that the imaging of optical system or camera lens becomes apparent from, quality higher.
Further, 1 focal power of the first lens is negative, focal length -40mm<f1<- 30mm, preferred focal length f1
For -35mm.The refractive index Nd1 preferably 1.78 of first lens 1, abbe number Vd1 preferably 25, be conducive to make optical system or
Camera lens forms sharp image.
Still further, 2 focal power of the second lens is negative, focal length -40mm<f2<- 35mm, preferred focal length f1
For -38mm.The refractive index Nd2 preferably 1.80 of second lens 2, abbe number Vd2 preferably 25, be conducive to make optical system or
Camera lens forms sharp image.
Also further, 3 focal power of the third lens is negative, focal length -38mm<f3<- 33mm, preferred focal length f3
For -34mm.The refractive index Nd3 preferably 1.50 of the third lens 3, abbe number Vd3 preferably 70, be conducive to make optical system or
Camera lens forms sharp image.
Specifically, 4 focal power of the 4th lens is just focal length 33mm<f4<38mm, preferred focal length f4 are 35mm.
The refractive index Nd4 preferably 1.80 of 4th lens 4, abbe number Vd4 preferably 25 is conducive to that optical system or camera lens is made to be formed
Sharp image.
Wherein, the third lens 3 and the 4th lens 4 are compound lens, and focal length f34 is 330mm.Be conducive to make optical system
Or camera lens forms sharp image.
More specifically, 5 focal power of the 5th lens is just, focal length 24mm<f5<28mm, preferred focal length f5 are
26mm.The refractive index Nd5 preferably 1.80 of 5th lens 5, abbe number Vd4 preferably 25 is conducive to make optical system or mirror
Capitiform is at sharp image.
Again specifically, 6 focal power of the 6th lens is negative, focal length -15mm<f6<- 10mm, preferred focal length f6 be-
12mm.The refractive index Nd6 preferably 1.50 of 6th lens 6, abbe number Vd6 preferably 70 is conducive to make optical system or mirror
Capitiform is at sharp image.
Further, 7 focal power of the 7th lens is just focal length 20mm<f7<25mm, preferred focal length f7 are
23mm.The refractive index Nd7 preferably 1.80 of 7th lens 7, abbe number Vd7 preferably 25 is conducive to make optical system or mirror
Capitiform is at sharp image.
Still further, in the present embodiment, every basic parameter of this optical lens is as shown in the table：
In upper table, along optical axis from image planes 9 to entrance pupil side or detector lens 8, S1, S2 correspond to two tables of the first lens 1
Face；S3, S4 correspond to two surfaces of the second lens 2；S5, S6 correspond to two surfaces of the third lens 3；S7, S8 are corresponded to
Two surfaces of the 4th lens 4；S9, S10 correspond to two surfaces of the 5th lens 5；STO is diaphragm position；S11、S12
Correspond to two surfaces of the 6th lens 6；S13, S14 correspond to two surfaces of the 7th lens 7.
As can be seen that there is this optical system good optical property, light to pass through from Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6
It after the convergence of this optical system, is apparent from the areas imaging of image planes, each wave band is converged to last in above single pixel point
And dull thread converges to rest of pixels point.
This application provides the big relay lens optical systems of high-precision small range simulated range, by instrumentality away to change
Become image distance, simulate the image distance of different location, different focal length is realized to make the camera lens of test pass through the application optical system
Shooting test.This optical system utilizes each eyeglass itself by the way that 1 to the 7th lens 7 of the first lens are reasonably arranged in pairs or groups
The characteristics of structure so that the distance of picture of the object through the optical system from short distance simulation to infinity practical adjustments is very short, adjusts
Pitch shoots object (generally test pattern) and only needs within opposite optical system relative movement 4mm from only 4mm,
0.2m can be simulated to infinity by the distance of optical system imaging, and is imaged on the side of subject, and camera lens to be measured passes through
The imaging is shot in the side in entrance pupil direction, to realize simulation wide-long shot, and image quality is high, in addition also provides
Relay lens can be widely used on occasion or the detection device of camera lens test, be also convenient for being applied to automatic detection system
On, the volumetric spaces of equipment can be reduced, improve the precision of test, and structure can also accomplish compact.
It is the one or more embodiments for combining particular content to provide as described above, does not assert the specific reality of the application
It applies and is confined to these explanations.It is all approximate with the present processes, structure etc., identical, or under the application concept thereof
It makes several technologies to deduce, or replaces the protection domain that all should be considered as the application.
Claims (9)
1. the big relay lens optical system of high-precision small range simulated range, includes successively along optical axis：First lens (1), second
Lens (2), the third lens (3), the 4th lens (4), the 5th lens (5), the 6th lens (6) and the 7th lens (7)；It is special
Sign is,
First lens (1) the object plane side is plane, and image planes side is convex surface；
Second lens (2) the object plane side is plane, and image planes side is concave surface；
The third lens (3) the object plane side is concave surface, and image planes side is convex surface；
4th lens (4) the object plane side is convex surface, and image planes side is concave surface；
5th lens (5) the object plane side is convex surface, and image planes side is convex surface；
6th lens (6) the object plane side is concave surface, and image planes side is convex surface；
7th lens (7) the object plane side is convex surface, and image planes side is plane.
2. the big relay lens optical system of high-precision small range simulated range according to claim 1, which is characterized in that should
Optical system also meets following condition：
(1)1.75<Nd1<1.95；20<Vd1<35；
(2)1.75<Nd2<1.95；20<Vd2<35；
(3)1.45<Nd3<1.60；65<Vd3<85；
(4)1.75<Nd4<1.95；20<Vd4<35；
(5)1.75<Nd5<1.95；20<Vd5<35；
(6)1.45<Nd6<1.60；65<Vd6<85；
(7)1.75<Nd7<1.95；20<Vd7<35；
Wherein, Nd1 is the refractive index of the first lens (1), and Vd1 is the abbe number of the first lens (1)；Nd2 is the second lens (2)
Refractive index, Vd2 be the second lens (2) abbe number；Nd3 is the refractive index of the third lens (3), and Vd3 is the third lens (3)
Abbe number；Nd4 is the refractive index of the 4th lens (4), and Vd4 is the abbe number of the 4th lens (4)；Nd5 is the 5th lens
(5) refractive index, Vd5 are the abbe number of the 5th lens (5)；Nd6 is the refractive index of the 6th lens (6), and Vd6 is the 6th lens
(6) abbe number；Nd7 is the refractive index of the 7th lens (7), and Vd7 is the abbe number of the 7th lens (7).
3. the big relay lens optical system of high-precision small range simulated range according to claim 1 or 2, feature exist
In the focal power of first lens (1) is negative, and focal length f1 is -35mm.
4. the big relay lens optical system of high-precision small range simulated range according to claim 1 or 2, feature exist
In the focal power of second lens (2) is negative, and focal length f2 is -38mm.
5. the big relay lens optical system of high-precision small range simulated range according to claim 1 or 2, feature exist
In the focal power of the third lens (3) is negative, and focal length f3 is -34mm.
6. the big relay lens optical system of high-precision small range simulated range according to claim 1 or 2, feature exist
In the focal power of the 4th lens (4) is that just, focal length f4 is 35mm.
7. the big relay lens optical system of high-precision small range simulated range according to claim 1 or 2, feature exist
In the focal power of the 5th lens (5) is that just, focal length f5 is 26mm.
8. the big relay lens optical system of high-precision small range simulated range according to claim 1 or 2, feature exist
In the focal power of the 6th lens (6) is negative, and focal length f6 is -12mm.
9. the big relay lens optical system of high-precision small range simulated range according to claim 1 or 2, feature exist
In the focal power of the 7th lens (7) is that just, focal length f7 is 23mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107783365A (en) * | 2017-11-24 | 2018-03-09 | 中山依瓦塔光学有限公司 | The big relay lens optical system of high-precision small range simulated range |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107783365A (en) * | 2017-11-24 | 2018-03-09 | 中山依瓦塔光学有限公司 | The big relay lens optical system of high-precision small range simulated range |
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