chapter 10 lens catalog & test plate fittingbingul/opac202/latex/opac202_ch10.pdfthen, in the...
TRANSCRIPT
![Page 1: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/1.jpg)
Sayfa 1
OPAC 202
Optical Design and Inst.
Chapter 10
Lens Catalog &
Test Plate Fitting
Department of
Optical & Acustical Engineering
Gaziantep University
http://www.gantep.edu.tr/~bingul/opac202
Apr 2020
![Page 2: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/2.jpg)
Sayfa 2
In this section, you will see three applications in Zemax:
1. How to see dispersion curve of an optical material
2. How to enter glass data at specific wavelengths
3. How to add a lens from the Lens Catalog
4. How to perform Test Plate Fitting
Introduction
![Page 3: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/3.jpg)
Sayfa 3
The index of refraction of an optical material varies with
wavelength. In Zemax, dispersion curve for a glass can be
obtained in Libraries Tab. Click on Material Analysis then
invoke Dispersion Diagram.
Example1: Dispersion Curve in Zemax
![Page 4: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/4.jpg)
Sayfa 4
Glass Companies
SCHOTT www.schott.com
OHARA CORP. www.oharacorp.com
HOYA GROUP www.hoya-opticalworld.com/english
ETC.
In Zemax go to:
General -> Glass Catalog
![Page 5: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/5.jpg)
Sayfa 5
SCHOTT N-BK7 (or BK7)
SCHOTT N-BK 7 (517642.251)
Download the data Sheet from their web page.
![Page 6: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/6.jpg)
Sayfa 6
Zemax is supplied with the glass catalogs of the major manufacturers
(which are built-in to Zemax), but there are times when you still need to add
your own glass data. There are several methods to do this in Zemax.
Zemax Table Glass file is a simple ASCII list.
Open notepad save the data
as shown.
Note
Density : is in gram/cc.
1st column : WL in um
2nd column: index of refraction.
Filename:
MYGLASS.ZTG
Path:
C:\<ZemaxFolder>\Glasscat
In my computer C:\Users\Bingul\Documents\Zemax\Glasscat
Example2: How To Enter Glass Data at Specific Wavelengths
![Page 7: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/7.jpg)
Sayfa 7
In the lens data editor, write the file name and its extension
in the Glass (Material) column as below.
![Page 8: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/8.jpg)
Sayfa 8
In the Libraries Tab, Click on Len Catalog
Select THORLABS as a Vendor
Example 3: How to add a lens from the Lens Catalog
![Page 9: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/9.jpg)
Sayfa 9
Layout of LBF254-050 EFL=50.06 EPD=22.86
Exercise: Look at the abberrations for 587 nm
![Page 10: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/10.jpg)
Sayfa 10
Test plate fitting is a Zemax utility to redesign a lens to fit
Vendors (company) tooling.
Primary reason is to reduce fabrication cost and delivery time,
as each test plate has to be manufactured as a pair and that
involves cost and time.
Example 4: Test Plate Fitting
![Page 11: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/11.jpg)
Sayfa 11
Consider we design a bi-convex lens.
EFL = +300 mm Glass = N-BK7
λ = Fraunhoffer d line (587 nm, n = 1.5168)
EPD = 25.4 mm ct = 5 mm
Determine the radii of curvatures of the lens such that parallel incident light
has minimum spherical aberration.
SOLUTION:
Applying Coddington formulae yield:
For these radii EFFL = 300.299 mm in Zemax.
1300
300
oi
oi
ss
ssP
0.73972
)1(2 2
P
n
n
mm 178.2381
)1(21
nfR
mm 1191.2251
)1(22
nfR
![Page 12: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/12.jpg)
Sayfa 12
![Page 13: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/13.jpg)
Sayfa 13
First make Radii variable.
Then, In the Optimize Tab, click on Test Plate Fitting
Select file (company) name then click OK
![Page 14: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/14.jpg)
Sayfa 14
Zemax will show you Test Plate Fit Results as follows:
![Page 15: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/15.jpg)
Sayfa 15
Best values are inserted in LDE automatically by Zemax.
Note that,
you may check if optical performance before and after test plate fitting
(e.g. See Ray Fan and Spot Diagrams)!
![Page 16: Chapter 10 Lens Catalog & Test Plate Fittingbingul/opac202/latex/opac202_ch10.pdfThen, In the Optimize Tab, click on Test Plate Fitting Select file (company) name then click OK Sayfa](https://reader035.vdocuments.us/reader035/viewer/2022062507/5fc117f226c3322de43f1cfd/html5/thumbnails/16.jpg)
Sayfa 16
A comparison of the designed lens and best suggested lens.
PARAMETER OLD NEW
----------- --------- ---------
Radii 178.238 178.562
-1191.225 -1198.499
Effl 300.299 301.010
GEO Radius 23.811 23.699
RMS Radius 14.701 14.632
SPHA 0.002 0.002