CN206657135U - A kind of metallographic object lens for reducing veiling glare - Google Patents
A kind of metallographic object lens for reducing veiling glare Download PDFInfo
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- CN206657135U CN206657135U CN201720300509.7U CN201720300509U CN206657135U CN 206657135 U CN206657135 U CN 206657135U CN 201720300509 U CN201720300509 U CN 201720300509U CN 206657135 U CN206657135 U CN 206657135U
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- eyeglass
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- microscope base
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Abstract
A kind of metallographic object lens for reducing veiling glare, including lens group, microscope base, diaphragm, trim ring, spacer ring, thing shell, adapter sleeve, overcoat, it is characterized in that assembling delustring ink processing rear lens group of four groups of edge frostings through high index of refraction successively backward from front end in thing shell, the optical axis of four groups of lens groups is on an optical axis；Four groups of lens groups include 8 optical mirror slips, first eyeglass is concavo-convex eyeglass, it is fixed on the first microscope base, second, third eyeglass is respectively plano-concave and biconvex eyeglass, it is fixed on after gluing on the second microscope base, the four, the five, the 6th eyeglasses are respectively biconvex, concave-concave, convex flat eyeglass, are fixed on after glued on the 3rd microscope base, seven, the 8th eyeglasses are respectively convex-concave, convex-concave eyeglass, are fixed on after glued on the 4th microscope base.The utility model reduces the interference of veiling glare, improves the image quality of metallographic object lens.
Description
Technical field
The utility model belongs to a kind of optical instrument critical component, directly influences the image quality of optical instrument, is one
The metallographic object lens of kind infinity system.
Background technology
Flat field infinity metallographic object lens are a critical components on metallographic microscope equipment, are achromatic objectives
One kind, main composition are made up of some groups of balsaming lens, microscope base, thing shell, overcoat, it is desirable to imaging clearly, no interference of stray light,
The requirement that central optical axis precision is high, focal plane error is small.
Existing metallographic object lens all exist on the technical parameter such as interference of stray light, central optical axis precision, focal plane error to be lacked
Fall into, be not used in high-grade metallographic microscope system.
The content of the invention
The purpose of this utility model be to provide it is a kind of reduce veiling glare metallographic object lens, it is by by multiple lens and glued mirror
Optical combination is carried out, optical axis school picture is carried out to lens group with numerical control optical equipment, improves plain shaft precision, and lens and microscope base are entered
Row delustring is handled, and reduces the interference of veiling glare.
To achieve the above object, the technical solution adopted in the utility model is：A kind of metallographic object lens for reducing veiling glare, bag
Include lens group, microscope base, diaphragm, trim ring, spacer ring, thing shell, adapter sleeve, overcoat, it is characterised in that in thing shell from front end backward according to
Delustring ink processing rear lens group of the four groups of edge frostings of secondary assembling through high index of refraction, the optical axis of four groups of lens groups is in a light
On axle；Four groups of lens groups include 8 optical mirror slips, and the first eyeglass is concavo-convex eyeglass, is fixed on the first microscope base, second,
3rd eyeglass is respectively plano-concave and biconvex eyeglass, is fixed on after glued on the second microscope base, the four, the five, the 6th eyeglasses are respectively
Biconvex, concave-concave, convex flat eyeglass, it is fixed on after glued on the 3rd microscope base, the seven, the 8th eyeglasses are respectively convex-concave, convex-concave eyeglass, glue
It is fixed on after conjunction on the 4th microscope base.
Preferably, the distance between the first eyeglass and second, third eyeglass balsaming lens group are 0.36mm, second, third
The distance between eyeglass balsaming lens group and the four, the five, the 6th eyeglass balsaming lens groups are 0.17 ± 0.015mm, the 4th,
5th, the distance between the 6th eyeglass balsaming lens group and the seven, the 8th eyeglass balsaming lens groups are 7.9 ± 0.02mm.
Preferably, each lens surface is coated with increase light penetration, reduces the multilayer film of reflectivity, to reduce optics
The generation of reflected light in eyeglass, increase transmitance, also function to the effect of protection eyeglass.
The microscope base, diaphragm, trim ring, spacer ring are handled by delustring.
The front end of the adapter sleeve is provided with four correction holes.
In order to ensure there is no reflected light in whole light path, fixed between microscope base by delustring spacer ring and delustring trim ring.
Beneficial effect：The utility model by multiple lens and glued mirror by carrying out optical combination, with numerical control optical equipment
Optical axis school picture is carried out to lens group, improves plain shaft precision.Sent out by the delustring of the blacking PROCESS FOR TREATMENT to each eyeglass, microscope base
Black, eyeglass multicoating, is effectively reduced the interference of veiling glare, improves the image quality of metallographic object lens, passes through numerical control
Optical device has reached the requirement that central optical axis precision is high, focal plane error is small to the focal plane PROCESS FOR TREATMENT of object lens.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
In figure, the lens of 1- first, 2- lens gluing unit one, 3- lens gluing unit two, 4- lens gluing unit three, the mirrors of 5- first
Seat, the microscope bases of 6- second, the microscope bases of 7- the 3rd, 8- spacer rings, the microscope bases of 9- the 4th, 10- trim rings, 11- adapter sleeves, 12- overcoats, 13- diaphragms.
Embodiment
It is further described below in conjunction with the drawings and specific embodiments.
Embodiment：For this example with conjugate distance infinity, multiplying power is that 20 times of long reach flat field achromatism metallographic object lens enter
Row explanation.
As shown in figure 1, the metallographic object lens of veiling glare are reduced, including the first lens 1, lens gluing unit 1, lens gluing unit
23, lens gluing unit 34.Above-mentioned four groups of lens and the edge frosting of lens gluing unit are used with the flatting oil of high index of refraction
Ink carries out delustring processing, then is individually fixed in the first microscope base 5, the second microscope base 6, the 3rd mirror for having been subjected to metal surface delustring processing
Seat 7 and the 4th is on microscope base 9, and correction center, make lens centre optical axis and microscope base it is cylindrical it is concentric, end face is vertical.Each microscope base and disappear
Light spacer ring 8 arranges be placed in lens barrel in order, is threadably secured using delustring trim ring 10.Lens barrel include coaxial overcoat 12,
Adapter sleeve 11, the tail end of adapter sleeve 11 and delustring diaphragm 13 are connected through a screw thread, and this structure is easy to assemble.The front end of adapter sleeve 11 has
Four correction holes, four groups of lens and the overall optical axis of balsaming lens group can be conveniently corrected, purpose eliminates coma, simultaneously
Repairing for the size of space is carried out to the first lens 1, lens gluing unit 1 to cut, and purpose spherical aberration corrector, finally makes whole lens imaging matter
Amount is optimal.
In embodiment, the first lens 1 are concave-convex lens, lens gluing unit 1 by plano-concave lens and the double gluings of biconvex lens
Composition, lens gluing unit 23 are made up of biconvex lens, biconcave lens and the gluing of convex plano lens three, lens gluing unit 34 is by two
The glued composition of individual meniscus；The convex surface of plane the first lens 1 of direction of lens gluing unit 1, the convex surface of lens gluing unit 23
Towards the convex surface of lens gluing unit 1, plane is towards the convex surface of lens gluing unit 34.By surface dulling processing and inwall spiral shell
The spacer ring 8 of line delustring is between lens gluing unit 23 and lens gluing unit 34.
The distance between first lens 1 and lens gluing unit 1 are 0.36mm, and the size can repair and cut size, for adjusting
Camera lens spherical aberration, the distance between lens gluing unit 1 and lens gluing unit 23 are 0.17 ± 0.015mm, lens gluing unit 1
The distance between lens gluing unit 23 is 7.9 ± 0.02mm.
The operating distance 10.44mm of embodiment object lens.
Each microscope base, adapter sleeve, overcoat are all made of ledrite in the present embodiment, and it is saturating that each lens surface is coated with increase light
Cross rate, reduce the multilayer film of reflectivity, lens edge frosting, microscope base, diaphragm, spacer ring all carry out delustring processing, greatly subtracted
The generation of few veiling glare, greatly improves image quality.
Claims (5)
1. a kind of metallographic object lens for reducing veiling glare, including it is lens group, microscope base, diaphragm, trim ring, spacer ring, thing shell, adapter sleeve, outer
Set, it is characterised in that assemble delustring ink processing of four groups of edge frostings through high index of refraction successively backward from front end in thing shell
Rear lens group, the optical axis of four groups of lens groups is on an optical axis；Four groups of lens groups include 8 optical mirror slips, the first eyeglass
For concavo-convex eyeglass, it is fixed on the first microscope base, second, third eyeglass is respectively plano-concave and biconvex eyeglass, and the is fixed on after glued
On two microscope bases, the four, the five, the 6th eyeglasses are respectively biconvex, concave-concave, convex flat eyeglass, are fixed on after glued on the 3rd microscope base, the
7th, the 8th eyeglass is respectively convex-concave, convex-concave eyeglass, is fixed on after glued on the 4th microscope base.
2. metallographic object lens as claimed in claim 1, it is characterised in that first eyeglass and second, third eyeglass balsaming lens
The distance between group be 0.36mm, second, third eyeglass balsaming lens group and the four, the five, the 6th eyeglass balsaming lens groups it
Between distance be 0.17 ± 0.015mm, the four, the five, the 6th eyeglass balsaming lens groups and the seven, the 8th eyeglass balsaming lens groups
The distance between be 7.9 ± 0.02mm.
3. metallographic object lens as claimed in claim 1, it is characterised in that each lens surface is coated with increase light penetration, subtracted
The multilayer film of few reflectivity.
4. metallographic object lens as claimed in claim 1, it is characterised in that the microscope base, diaphragm, trim ring, spacer ring are by delustring
Reason.
5. metallographic object lens as claimed in claim 1, it is characterised in that the front end of the adapter sleeve is provided with four correction holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720300509.7U CN206657135U (en) | 2017-03-27 | 2017-03-27 | A kind of metallographic object lens for reducing veiling glare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720300509.7U CN206657135U (en) | 2017-03-27 | 2017-03-27 | A kind of metallographic object lens for reducing veiling glare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206657135U true CN206657135U (en) | 2017-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720300509.7U Active CN206657135U (en) | 2017-03-27 | 2017-03-27 | A kind of metallographic object lens for reducing veiling glare |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018194780A (en) * | 2017-05-22 | 2018-12-06 | オリンパス株式会社 | Microscope system, control method and program |
-
2017
- 2017-03-27 CN CN201720300509.7U patent/CN206657135U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018194780A (en) * | 2017-05-22 | 2018-12-06 | オリンパス株式会社 | Microscope system, control method and program |
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