CN104459945B - Detect the object lens of chalcogenide glass uniformity and there is its chalcogenide glass uniformity detection - Google Patents
Detect the object lens of chalcogenide glass uniformity and there is its chalcogenide glass uniformity detection Download PDFInfo
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- CN104459945B CN104459945B CN201410808089.4A CN201410808089A CN104459945B CN 104459945 B CN104459945 B CN 104459945B CN 201410808089 A CN201410808089 A CN 201410808089A CN 104459945 B CN104459945 B CN 104459945B
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- 238000001514 detection method Methods 0.000 title claims abstract description 56
- 239000005387 chalcogenide glass Substances 0.000 title claims abstract description 51
- 239000011521 glass Substances 0.000 claims abstract description 12
- 239000000571 coke Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 11
- 230000004075 alteration Effects 0.000 description 10
- 238000003384 imaging method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003333 near-infrared imaging Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- GTLQJUQHDTWYJC-UHFFFAOYSA-N zinc;selenium(2-) Chemical class [Zn+2].[Se-2] GTLQJUQHDTWYJC-UHFFFAOYSA-N 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
-
- 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
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
A kind of object lens detecting chalcogenide glass uniformity; it is characterized in that: include the most spaced protection glass, the first eyeglass, the second eyeglass, the 3rd eyeglass and bandpass filter; described first eyeglass, the second eyeglass and the 3rd eyeglass are the bonding eyeglass of positive light coke; described first eyeglass is bonded by the first biconvex lens and the first planoconcave lens; described second eyeglass is bonded by the second biconvex lens and the second planoconcave lens, and described 3rd eyeglass is bonded by the 3rd biconvex lens and biconcave lens.The detection object lens of chalcogenide glass uniformity of the present invention and have its detection device, have preferable optical property, it is achieved that the detection of chalcogenide glass uniformity, and image quality are good, stable performance.
Description
Technical field
The present invention relates to object lens and there is the detection device of these object lens.
Background technology
Chalcogenide glass is that one based on Group VIA element S, Se, Te and introduces other metalloid a certain amount of or metal unit
The glass that element is formed, chalcogenide glass material has less thermal refractive index coefficient, and dn/dt is about five points of germanium (Ge) monocrystalline
One of, there is good permeability in 1 μm～14 mu m wavebands, it is easy to precise compression molding and heavy caliber such as prepare at the feature.Along with Jiao puts down
Face array and the development of non-refrigeration type infrared detection technique, chalcogenide glass has become a new generation's heavy caliber without transconversion into heat infrared optics
The good candidate material of camera lens, this material can be applied jointly with crystal such as germanium (Ge), zinc sulfide (ZnS) and zinc selenides (ZnSe)
Exploitation in novel thermal imaging system.
The spectral transmission scope of chalcogenide glass does not comprise visible ray, so using conventional optical glass homogeneity detection dress
Put and can not detect the fringe distribution within chalcogenide glass and related defects (including impurity, crackle etc.) feature.Also have no both at home and abroad
The chalcogenide glass optical homogeneity detection device of large scale (diameter of phi ＞ 50mm) and the correlational study of Inner Defect Testing method
Report.
Summary of the invention
The technical problem to be solved is to provide a kind of object lens detecting chalcogenide glass uniformity, and has this
The detection device of the chalcogenide glass uniformity of object lens.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of thing detecting chalcogenide glass uniformity
Mirror, it is characterised in that: include the most spaced protection glass, the first eyeglass, the second eyeglass, the 3rd eyeglass and bandpass filter
Sheet, described first eyeglass, the second eyeglass and the 3rd eyeglass be the bonding eyeglass of positive light coke, and described first eyeglass is by first pair
Convex lens and the first planoconcave lens are bonded, and described second eyeglass is by the second biconvex lens and the bonding of the second planoconcave lens
Becoming, described 3rd eyeglass is bonded by the 3rd biconvex lens and biconcave lens.
Preferably, following condition is met:
0.01 ＜ f/f1＜ 0.02, | f11| ＞ | f12|, 0.6 ＜ f/f2＜ 0.7, f21＜ f22, 0.55 ＜ f/f3＜ 0.65, |
f31| ＜ | f32|, 60 ＜ Vd1=Vd3=Vd5＜ 65,25 ＜ Vd2=Vd4=Vd6＜ 30；
Wherein f is the focal length of whole object lens, f1、f2And f3It is respectively the first eyeglass, the second eyeglass and Jiao of the 3rd eyeglass
Away from, the first biconvex lens and the focal length of the first planoconcave lens in the first eyeglass are respectively f11And f12, second pair of the second eyeglass
The focal length of convex lens and the second planoconcave lens is respectively f21And f22, the 3rd biconvex lens of the 3rd eyeglass and Jiao of biconcave lens
Away from respectively f31And f32；Vd1、Vd2、Vd3、Vd4、Vd5、Vd6It is respectively the first biconvex lens, the first planoconcave lens, the second lenticular
Mirror, the second planoconcave lens, the 3rd biconvex lens and the Abbe constant of biconcave lens.
Preferably, described six eyeglasses are all located in a lens barrel, and described lens barrel be respectively arranged at two ends with protective cradle
Logical with band with being respectively equipped with protection glass on bandpass filter protective cradle, described protective cradle and bandpass filter protective cradle
Optical filter.
For the ease of fixing len, the lens barrel between described first eyeglass, the second eyeglass and the 3rd eyeglass and the 3rd mirror
Eyeglass retainer ring it is respectively equipped with on the lens barrel at two ends before and after sheet.
Preferably, the bandwidth wavelength of described bandpass filter is 0.95 μm～1.05 μm, and light transmittance is more than 90%.
There is the chalcogenide glass uniformity detection of above-mentioned object lens, including the light source set gradually, beam-expanding collimation mirror, survey
Test agent frame, object lens and detection system, light-source brightness actuator is connected to described light source and controls the brightness of described light source, and one
Image acquisition and processing device is connected to described detection system.
Preferably, described detection system includes the Infrared Detectors being equipped with 1/2 inch of CMOS, and its response wave band is 0.4 μ
M～1.7 μm, pixel is 1280 × 1040, and this detection system also includes x-y-z three-dimensional mobile platform.
Compared with prior art, it is an advantage of the current invention that the object lens of this detection chalcogenide glass uniformity and there is it
Detection device, has preferable optical property, it is achieved that the detection of chalcogenide glass uniformity, and image quality is good, and performance is steady
Fixed.
Accompanying drawing explanation
Fig. 1 is the structure chart of the object lens of the detection chalcogenide glass uniformity of the embodiment of the present invention.
Fig. 2 is the detection device of the detection chalcogenide glass uniformity of the embodiment of the present invention.
Fig. 3 be the embodiment of the present invention detection chalcogenide glass uniformity object lens be MTF curve when 0 at image height；
Fig. 4 be the object lens of the detection chalcogenide glass uniformity of the embodiment of the present invention be that MTF during 19.25mm is bent at image height
Line；
Fig. 5 be the object lens of the detection chalcogenide glass uniformity of the embodiment of the present invention be that MTF during 38.50mm is bent at image height
Line；
Fig. 6 be the object lens of the detection chalcogenide glass uniformity of the embodiment of the present invention be that MTF during 55.00mm is bent at image height
Line；
Fig. 7 a is the object lens of the detection chalcogenide glass uniformity of the embodiment of the present invention axial meridian pictures when image height is 0mm
Difference, Fig. 7 b is the object lens of the detection chalcogenide glass uniformity of the inventive embodiments the most lonely arrow aberrations when image height is 0mm；Fig. 7 c
It is the object lens axial meridian aberration when image height is 19.25mm of the detection chalcogenide glass uniformity of the embodiment of the present invention, Fig. 7 d
Aberration is vowed for axially lonely when image height is 19.25mm of the object lens of detection chalcogenide glass uniformity of inventive embodiments；Fig. 7 e is
The object lens of the detection chalcogenide glass uniformity of the embodiment of the present invention axial meridian aberration when image height is 38.50mm, Fig. 7 f is
The object lens of the detection chalcogenide glass uniformity of the inventive embodiments the most lonely arrow aberration when image height is 38.50mm；Fig. 7 g is this
The object lens of the detection chalcogenide glass uniformity of the inventive embodiments axial meridian aberration when image height is 55.00mm, Fig. 7 h is for sending out
The object lens of the detection chalcogenide glass uniformity of the bright embodiment the most lonely arrow aberration (Maximum when image height is 55.00mm
scale:±50μm)。
Fig. 8 is the color focal length displacement of the object lens of the detection chalcogenide glass uniformity of the embodiment of the present invention.
Fig. 9 a, 9b, 9c and 9d are four samples imagings under the detection device of the embodiment of the present invention detects respectively.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The object lens of the detection chalcogenide glass uniformity of the embodiment of the present invention, for a kind of near infrared imaging object lens, such as Fig. 1 institute
Show, including the protection glass 4A set gradually, the first eyeglass the 10, second eyeglass the 20, the 3rd eyeglass 30 and bandpass filter 4B, its
In the first eyeglass 10 be positive light coke achromatism bonding eyeglass, the second eyeglass 20 be positive light coke achromatism bond eyeglass,
3rd eyeglass 30 is the achromatism bonding eyeglass of positive light coke.This first, second, third eyeglass all use two panels eyeglass bonding and
Become.
This first eyeglass 10 is bonded by the first biconvex lens G1 and the first planoconcave lens G2, and this second eyeglass 20 is by
Two biconvex lens G3 and the second planoconcave lens G4 are bonded, and the 3rd eyeglass 30 is by a 3rd biconvex lens G5 and biconcave lens G6
It is bonded.Wherein the focal length of these six eyeglasses meets following condition: 0.01 ＜ f/f1＜ 0.02, | f11| ＞ | f12|, 0.6 ＜ f/
f2＜ 0.7, f21＜ f22, 0.55 ＜ f/f3＜ 0.65, | f31| ＜ | f32|.Wherein f is the focal length of whole object lens, f1、f2And f3Point
It is not the first eyeglass the 10, second eyeglass 20 and focal length of the 3rd eyeglass 30, the first biconvex lens G1 in the first eyeglass 10 and
The focal length of one planoconcave lens G2 is respectively f11And f12, the second biconvex lens G3's and the second planoconcave lens G4 of the second eyeglass 20
Focal length is respectively f21And f22, the focal length of the 3rd biconvex lens G5 and biconcave lens G6 of the 3rd eyeglass 30 is respectively f31And f32。
Vd1、V d2、Vd3、Vd4、V d5、V d6Be respectively the first biconvex lens G1, the first planoconcave lens G2, the second biconvex lens G3, second
Planoconcave lens G4, the 3rd biconvex lens G5 and the Abbe constant of biconcave lens G6,60 ＜ Vd1=Vd3=Vd5＜ 65,25 ＜ Vd2=
Vd4=Vd6＜ 30.Preferably, wherein this first biconvex lens G1 and the second biconvex lens G3 and the 3rd biconvex lens G5 by
The first material is made, and this first planoconcave lens G2, the second planoconcave lens G4 and biconcave lens G6 are made by the second material,
Preferably, this first material is H-K9L material, and this second material is H-ZF6, and this protection glass 4A is also the first material
The thin slice made.Wherein the bandwidth of bandpass filter 4B is in 0.95 μm～1.05 μm, and light transmission efficiency is more than 90%.
Above-mentioned eyeglass G1-G6 is all located in a lens barrel 430, and lens barrel 430 be respectively arranged at two ends with protective cradle 410 He
Protection glass 4A it is respectively equipped with on bandpass filter protective cradle 420, protective cradle 410 and bandpass filter protective cradle 420
With bandpass filter 4B, first eyeglass the 10, second eyeglass 20 and the 3rd eyeglass 30 be successively set in lens barrel 430, and first
Two ends set respectively on lens barrel 430 between eyeglass the 10, second eyeglass 20 and the 3rd eyeglass 30 and before and after the 3rd eyeglass 30
There is eyeglass retainer ring 440.Described protective cradle 410 and bandpass filter protective cradle 420 are threadeded solid with lens barrel 430 respectively
Fixed.
As in figure 2 it is shown, be the detection device of the chalcogenide glass uniformity with these object lens, this device includes light source 1, expands
Collimating mirror 2, test sample frame 3, object lens 4, carry the detection system 5 of three-dimensional mobile platform, light-source brightness actuator 6 and image and adopt
Set processor 7.Wherein light-source brightness actuator 6 is connected with light source 1, for regulating the brightness of light source, image acquisition and processing device 7
It is connected with detection system 5.Preferably, wherein light source 1 includes the general lighting lamp of 6V/15W, and optical source wavelength is 0.4 μm～12 μm,
Test sample frame 3 includes that movable supporting frame and triangle clamp are for fixing sample to be measured.Detection in these object lens 4, detection system 5
Device, light source 1 are all coaxially disposed.Described detection system 5 includes the Infrared Detectors being equipped with 1/2 inch of CMOS, its response wave band
Being 0.4 μm～1.7 μm, pixel is 1280 × 1040, and this detection system 5 also includes x-y-z three-dimensional mobile platform.
Embodiment 1:
The bore of the object lens in this embodiment is 110mm, when what table 1 was listed the is bore of these object lens is 110mm, has thing
Each parameter of the chalcogenide glass uniformity detection of mirror, the surface type of each eyeglass and material, wherein six eyeglass G1-G6
In thickness represents is this face in eyeglass to the distance between its later face.S1, S2 are the two of the first biconvex lens G1
Individual face, the like.
Table 1:
| Face sequence number | Surface type | Radius of curvature (mm) | Thickness (mm) | Material | Eyeglass radius (mm) |
| OBJ | --- | Infinity | 4990.000 | --- | 55.000 |
| 4A | Protection glass | Infinity | 5.000 | a | 55.000 |
| --- | --- | Infinity | 5.000 | 55.000 | |
| G1:S1 | Sphere | 365.616 | 25.000 | a | 60.000 |
| G1:S2 | Sphere | -164.942 | 0.000 | --- | 60.000 |
| G2:S3 | Sphere | -164.942 | 15.000 | b | 60.000 |
| G2:S4 | Sphere | Infinity | 6.700 | --- | 60.000 |
| G3:S5 | Sphere | 124.303 | 30.000 | a | 60.000 |
| G3:S6 | Sphere | -336.815 | 0.000 | --- | 60.000 |
| G4:S7 | Sphere | -336.815 | 15.000 | b | 60.000 |
| G4:S8 | Sphere | Infinity | 129.000 | --- | 55.000 |
| G5:S9 | Sphere | 63.558 | 20.000 | a | 30.000 |
| G5:S10 | Sphere | -90.548 | 0.000 | --- | 30.000 |
| G6:S11 | Sphere | -90.548 | 10.000 | b | 30.000 |
| G6:S12 | Sphere | 223.833 | 30.750 | --- | 25.000 |
| 4B | Optical filter | Infinity | 5.000 | --- | 12.500 |
| --- | --- | Infinity | 30.000 | --- | 12.500 |
| IMG | --- | Infinity | --- | --- | 2.230 |
According to the object lens of table 1 design, chalcogenide glass surface the most to be detected with the distance of object lens protection glass 4A is
4990mm；The distance of protection glass 4A and the first eyeglass G1 is 5mm；The focal length of image-forming objective lens is 198mm；System uses once to become
Image space formula；System first arrives a length of 316.6mm of axial space of detector；F number is 1.83；Back focal length is 65.75mm；Entirely
Distortion < 0.02% in visual field；Bandpass range 0.95 μm of band pass filter～1.05 μm；Effectively image height is 4.46mm.These object lens
Mtf value resolution be 96 lines right/millimeter at more than 0.5, fully meet the imaging specification of selected detector.In above table
Design parameter be only exemplary, each lens curvature radius, interval and the value etc. of refractive index, be not limited to by said system institute
The value shown, can take other value, can reach similar technique effect.
From Fig. 3,4,5 and 6, the object lens of the present embodiment image height be 0,19.25mm, 38.50mm and 55.00mm time
Mtf value limiting resolution 96 line of detector right/millimeter time be all higher than 0.5；From Fig. 7 a-7h, the axial meridian of object lens
Aberration and the most lonely arrow aberration are smooth-out, rise and fall little, and aberration is little；As shown in Figure 8, object lens are imitated at achromatism wave band achromatism
Fruit is preferably.
The detection method of this chalcogenide glass uniformity detection with object lens is as follows, with the object lens of 50mm bore and
As a example by sample: 1) regulate light source 1, beam-expanding collimation mirror 2, test sample frame 3, object lens 4 and the relative position of detection system 5, make it
Coaxial and contour；2) regulation light-source brightness actuator 6, makes the light intensity of light source 1 fall at the linear response model of Infrared Detectors
In enclosing；3) chalcogenide glass sample to be measured is placed on the test sample frame 3 between beam-expanding collimation mirror 2 and object lens 4, again regulates
Light-source brightness actuator 6, until the light intensity brightness of light source 1 disclosure satisfy that chalcogenide glass imaging；4) mobile flat by controlling three-dimensional
Platform fine setting Infrared Detectors moves up and down, and obtains sample at image planes focal point blur-free imaging on image acquisition and processing device 7.
Such as Fig. 9 a-9d, be four thickness be 10mm, bore be that polishing cylinder chalcogenide glass sample A, B, C and D of 50mm are by upper
Stating the picture that detection device records, the inboard stripes that can clearly observe the cylindrical chalcogenide glass of polishing from scheming is distributed and relevant scarce
Fall into, including the feature such as impurity, crackle.
The detection object lens of chalcogenide glass uniformity of the present invention and have its detection device, have the most optical
Can, it is achieved that the detection of chalcogenide glass uniformity, and image quality is good, stable performance.
Although the preferred embodiments of the present invention described in detail above, it is to be clearly understood that for this area
Technical staff for, the present invention can have various modifications and variations.All made within the spirit and principles in the present invention appoint
What amendment, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (6)
1. the object lens detecting chalcogenide glass uniformity, it is characterised in that: include the most spaced protection glass (4A),
First eyeglass (10), the second eyeglass (20), the 3rd eyeglass (30) and bandpass filter (4B), described first eyeglass (10), second
Eyeglass (20) and the 3rd eyeglass (30) are the bonding eyeglass of positive light coke, and described first eyeglass (10) is by the first biconvex lens
(G1) and the first planoconcave lens (G2) is bonded, and described second eyeglass (20) is saturating by the second biconvex lens (G3) and the second plano-concave
Mirror (G4) is bonded, and described 3rd eyeglass (30) is bonded by the 3rd biconvex lens (G5) and biconcave lens (G6)；
Described first biconvex lens (G1), the first planoconcave lens (G2), the second biconvex lens (G3), the second planoconcave lens (G4),
3rd biconvex lens (G5) and biconcave lens (G6) set gradually；
And meet following condition:
0.01 ＜ f/f1＜ 0.02, | f11| ＞ | f12|, 0.6 ＜ f/f2＜ 0.7, f21＜ f22, 0.55 ＜ f/f3＜ 0.65, | f31| ＜
|f32|, 60 ＜ Vd1=Vd3=Vd5＜ 65,25 ＜ Vd2=Vd4=Vd6＜ 30；
Wherein f is the focal length of whole object lens, f1、f2And f3It is respectively the first eyeglass (10), the second eyeglass (20) and the 3rd eyeglass
(30) focal length, the first biconvex lens (G1) and the focal length of the first planoconcave lens (G2) in the first eyeglass (10) are respectively f11With
f12, second biconvex lens (G3) of the second eyeglass (20) and the focal length of the second planoconcave lens (G4) are respectively f21And f22, the 3rd mirror
3rd biconvex lens (G5) of sheet (30) and the focal length of biconcave lens (G6) are respectively f31And f32；Vd1、Vd2、Vd3、Vd4、Vd5、Vd6
Be respectively the first biconvex lens (G1), the first planoconcave lens (G2), the second biconvex lens (G3), the second planoconcave lens (G4), the
Three biconvex lens (G5) and the Abbe constant of biconcave lens (G6).
2. the object lens detecting chalcogenide glass uniformity as claimed in claim 1, it is characterised in that: described first biconvex lens
(G1), the first planoconcave lens (G2), the second biconvex lens (G3), the second planoconcave lens (G4), the 3rd biconvex lens (G5) and double
In a lens barrel (430) is all located at by concavees lens (G6), and described lens barrel (430) be respectively arranged at two ends with protective cradle (410) and
It is respectively equipped with on bandpass filter protective cradle (420), described protective cradle (410) and bandpass filter protective cradle (420)
Protection glass (4A) and bandpass filter (4B).
3. the as claimed in claim 2 object lens detecting chalcogenide glass uniformity, it is characterised in that: described first eyeglass (10) and
Lens barrel (430) between second eyeglass (20) lens barrel (430) upper, between the second eyeglass (20) and the 3rd eyeglass (30) go up and
It is respectively equipped with eyeglass retainer ring (440) on the lens barrel (430) at two ends before and after 3rd eyeglass (30).
4. the object lens detecting chalcogenide glass uniformity as claimed in claim 1, it is characterised in that: described bandpass filter (4B)
Bandwidth wavelength be 0.95 μm～1.05 μm, light transmittance be more than 90%.
5. having a chalcogenide glass uniformity detection for object lens according to any one of the claims 1-4, it is special
Levy and be: include light source (1), beam-expanding collimation mirror (2), test sample frame (3), object lens (4) and the detection system set gradually
(5), light-source brightness actuator (6) is connected to described light source (1) and controls the brightness of described light source (1), at an image acquisition
Reason device (7) is connected to described detection system (5).
6. chalcogenide glass uniformity detection as claimed in claim 5, it is characterised in that: described detection system (5) includes
Being equipped with the Infrared Detectors of 1/2 inch of CMOS, its response wave band is 0.4 μm～1.7 μm, and pixel is 1280 × 1040, and
This detection system (5) also includes x-y-z three-dimensional mobile platform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410808089.4A CN104459945B (en) | 2014-12-22 | 2014-12-22 | Detect the object lens of chalcogenide glass uniformity and there is its chalcogenide glass uniformity detection |
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| CN201410808089.4A CN104459945B (en) | 2014-12-22 | 2014-12-22 | Detect the object lens of chalcogenide glass uniformity and there is its chalcogenide glass uniformity detection |
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| CN104459945A CN104459945A (en) | 2015-03-25 |
| CN104459945B true CN104459945B (en) | 2017-01-04 |
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| CN111982884A (en) * | 2020-09-15 | 2020-11-24 | 江苏师范大学 | Compact 266nm shortwave ultraviolet Raman spectrometer |
Citations (5)
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|---|---|---|---|---|
| US4792214A (en) * | 1986-11-28 | 1988-12-20 | Hughes Aircraft Company | Optical magnifying system: 10 x loupe |
| US5625488A (en) * | 1994-08-18 | 1997-04-29 | Etb Endoskopische Technik Gmbh Berlin | Telecentric relay lens system |
| JP2007304312A (en) * | 2006-05-11 | 2007-11-22 | Nidec Copal Corp | Achromatic lens system |
| JP2013148626A (en) * | 2012-01-17 | 2013-08-01 | National Institute Of Information & Communication Technology | Optical antenna for optical radio communication apparatus using infrared laser beam |
| CN204374505U (en) * | 2014-12-22 | 2015-06-03 | 宁波大学 | Detect the object lens of chalcogenide glass homogeneity and there is its chalcogenide glass uniformity detection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ713089A3 (en) * | 1989-12-15 | 1993-01-13 | Fyzikalni Ustav Csav | three-component objective |
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2014
- 2014-12-22 CN CN201410808089.4A patent/CN104459945B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792214A (en) * | 1986-11-28 | 1988-12-20 | Hughes Aircraft Company | Optical magnifying system: 10 x loupe |
| US5625488A (en) * | 1994-08-18 | 1997-04-29 | Etb Endoskopische Technik Gmbh Berlin | Telecentric relay lens system |
| JP2007304312A (en) * | 2006-05-11 | 2007-11-22 | Nidec Copal Corp | Achromatic lens system |
| JP2013148626A (en) * | 2012-01-17 | 2013-08-01 | National Institute Of Information & Communication Technology | Optical antenna for optical radio communication apparatus using infrared laser beam |
| CN204374505U (en) * | 2014-12-22 | 2015-06-03 | 宁波大学 | Detect the object lens of chalcogenide glass homogeneity and there is its chalcogenide glass uniformity detection |
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| CN104459945A (en) | 2015-03-25 |
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