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Replies posted by Julia

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JuliaFully Spectral

asked in Got a question?

Tolerancing- On which field of view did the tolerance calculation based ?

Answer: The option Separate Fields/Configs  is related to the calculation of tolerance criteria. Your analyzing result is calculated as an average over all fields in all configurations without checking the option of Separate Fields/Configs.  And if the option being checked, the criterion will be calculated and displayed for all fields of view in all configurations individually. As to fields to be used during the calculation, it is related to the choice under criterion of Tolerancing dialogue, there are three options for Fields, they are Y-Symmetric, XY-Symmetric, and User Defined. So fields used during tolerancie calculation also depend on the option here. The fields will also be listed in the text report after running tolerance.   Y-Symmetric: OpticStudio computes the maximum field coordinate, then defines new field points at +1.0, +0.7, 0.0, -0.7, and -1.0 times the maximum field coordinate, in the Y direction only. All X fiel

4 years ago

JuliaFully Spectral

asked in Got a question?

Universal Plot - - error message 'Error in operand parameters'

Answer: For the feature of Universal plot,  the function is not as expected if choosing operand as DIFF directly from the setting dialogue. Some individual operands, like DIFF and SUMM, have no meaning if selected from the "Operand" column because these operands are only defined when used as part of a larger merit function. If results from a calculation like DIFF are required, adding extra operand DIFF into merit function editor to calculate the difference between Op#1 and Op#2 , and then in the setting dialogue of Universal Plot, the merit function should be selected from the Operand list and the individual DIFF operand within the merit function selected for the "Line".  

4 years ago

JuliaFully Spectral

asked in Got a question?

Thermal analysis - - How thermal parameter values being calculated?

Answer: For coefficients of Even Asphere surface,  a1, a2, a3… they have different units, and shown as below in case of lens units was mm  : a1,  units was 1/mm a2,  units was 1/mm^3 a3,  units was 1/mm^5 …… So the scaling for above parameters was  1/r, 1/r^3, 1/r^5 …. The TCE value is the thermal coefficient of expansion in 1e-6/K. We know that TCE=8, and δT=40 K. a1=a2=a3=p=100 Radius of surface7 is 100. For configuration2: radius= 100+100*8*40*e-6= 100.032 crvt= 1/100.032= 9.996801024E-03  a1= p/(scale of r) =  p/(100.032/100)= 0.9996810 p a2=p/scale of (r^3)= p/ (100.032^3/100^3)= 0.99904614 p a3=p/ scale of (r^5))=p/(100.032^5/100^5)=  0.99840153 p For configuration3: radius= 100+100*8*80*e-6= 100.064 crvt= 1/100.064= 9.993604093E-03  a1= p/(scale of r) =  p/(100.064/100)= 0.9993604093 p a2=p/scale of (r^3)= p/ (100.064^3/100^3)= 0.998082455 p a3=p/ scale of (r^5))=p/(100.064^5/100^5)=  0.9968061348 p

4 years ago

JuliaFully Spectral

posted in Got a question?

'Pass_P' coating fail for the modeling of a wire grid polarizer, how to model it correctly?

The term 's-polarized light' and 'p-polarized light' in above question is different from the one being defined in OpticStudio. In OpticStudio, vector S and vector P is the projection of E field, and the direction depends on k vector(ray propagation vector) and surface normal. When ray propagate normal to surface, the distinction between S and P polarization become ambiguous. See this forum post for more information. In industry, people use the terms S and P polarization but they want rays being operated in X and Y direction. In your case, the structure looks like the picture shown below. You would like to simulate a polarizer that can reflect X polarization and let Y polarization transmit. However, the definition of S and P changes from ray to ray. If a ray come from X direction with non-zero radial angle, the S polarization will be defined in Y direction. And if the ray come from Y direction, the S polarization will instead be defined in X direction. This is obv

4 years ago

JuliaFully Spectral

posted in Got a question?

Python installation troubleshooting

Problem of wrappers being broken usually can be fixed by above troubleshooting steps.  But Python installation will have influence on imported module path. For my situation:  Check generating to path when apply the troubleshooting steps in the Windows 'cmd' window.  Note the module is imported into a different path, not under C:\Python37 Though system path of Python is under C:\ directory in my case, user path is not the right folder.     My solution here is reinstall Python follow steps: Check 'Add Python 3.7 to PATH', click Customize installation:              2. Check all and Next:         3. Choose folder C:\ by clicking Browse, please don't type in location path by hand : 4. install pywin32 module and back to CMD window to check if importing success.    

4 years ago

JuliaFully Spectral

posted in Got a question?

ZOS-API- How do I configure settings for an analysis feature ?

We can first check if the certain analysis has setting interface by using the HasAnalysisSpecificSettings property: my_analysis.HasAnalysisSpecificSettings If settings are available, then settings can be configured directly.  Or we can search from OpticStudio helpfile to see if the analysis supported by ModifySettings methods, since the use of the method is similar to ZPL keywords, so we can check supported analysis and type code from the following chapter in helpfile:   The Programming Tab > About the ZPL > KEYWORDS (about the zpl) > MODIFYSETTINGS (keywords) If settings are supported by MODIFYSETTINGS, the settings can be configured by using ModifySettings method.    If none of the above situations apply for the application, a workaround is provided.  After compare the three analysis features, we found that:  HasAnalysisSpecificSettings supported by ModifySettings? type code for Modifysettings Spo

4 years ago

JuliaFully Spectral

posted in Got a question?

Understanding of coefficients of Chebyshev polynomial surface

For detailed discussion about Chebyshev surface, please refer to the KB article: Freeform Optics in OpticStudio  Check the attached excel file to compare computed sag data and the sag value used by OpticStudio.  The calculation is based on the sample file located at  C:\Users\...\Documents\Zemax\Samples\Sequential\Tilted systems & prisms\OAP using Chebyshev Polynomial surface.ZMX

4 years ago

JuliaFully Spectral

posted in Got a question?

Understanding of coefficients of Chebyshev polynomial surface

Hi Yunfeng, The calculation is a comparison between the results in OpticStudio and the direct calculation with the polynomial. The constant term is not used in the calculation, which yields the same result with OpticStudio. I think the constant term can be considered by thickness of the surface or thickness of the preceding surface in sequential system. Let me know if you have further question about it.  Thanks.   Julia

4 years ago

JuliaFully Spectral

posted in Got a question?

ZOS-API- How do I configure settings for an analysis feature ?

The workaround for Partially Coherent Image Analysis would be: Open a blank file- LENS.ZMX, open Partially coherent image analysis window and Merit function editor Uncheck Auto apply Configure the analysis window with settings you will use later Add ZPLM(mac#21) into MFE. Click update button in merit function editor (ZPL file being attached, you may change the highlighted part to fit your situation ) It will ask you to input the filename, which will be the saved CFG filename These steps can be repeated until setting combinations you are going to use are saved. 2.Once finished, these setting files can be used in other lens files Please note that ZPLM is not commonly used as this way (Keywords INPUT is not friendly for optimization usage).

4 years ago

JuliaFully Spectral

posted in Got a question?

Tolerancing- understanding of when using TEZI, the max tolerance value is RMS error of surface

We will take advantage of the useful tolerancing operand SAVE: save sensitivity analysis lenses. Before go through the following steps, you may search SAVE from helpfile or click here to get more information about the tolerancing operand.  The file being used locate in your sample folder: C:\Users\J...\Documents\Zemax\Samples\Short course\Optical System Design Using OpticStudio\SC_Tol_singlet.zmx Add the following operands in Tolerancing data editor. This will set RMS error of surface3(a planar surface) as 0.001mm (in lens units), which is the value being set for max tolerance cell in TDE. Here the testing wavelength being set as 1 micron is because I added operands by using tolerance wizard with the setting of Zernike Irregularity as 2 fringes, it is for the convenience to show how fringes of Zerinike Irregularity being calculated as Max/Min tolerance value. We consider that fringes are measured in a double pass Newton's rings type test, so 2

4 years ago

JuliaFully Spectral

posted in Got a question?

ZPLM macro- GETT() is not effective to extract values, is there a workaround?

When using ZPLM to create a user defined operand, the merit function is always evaluated using a temporary copy of the lens. GETT() extracts a numerical value from any opened text window.This is reflected in the user interface. However, any updates taken effect on the copy of the current system will not have effect on the currently opened analysis window. That's why GETT() is not effective for ZPLM macros. In the situation, the keyword GETTEXTFILE can still be used to extract values.  For example, save setting for Geometric image analysis first(or use keyword MODIFYSETTINGS) and then try with the following code: A$ = $TEMPFILENAME() GETTEXTFILE A$, Ima OPEN A$ line_num=1 LABEL 1 READSTRING B$ IF (line_num>=30) THEN GOTO 2 # PRINT B$ line_num=line_num+1 GOTO 1 LABEL 2 READ X1,Y1 READ X2,Y2 READ X3,Y3 DELETEFILE A$ CLOSE #PRINT X1," ",Y1 #PRINT X2," ",Y2 #PRINT X3," ",Y3 OPTRETURN 1, Y1 OPTRETURN 2, Y2 OPTRETURN 3, Y3

3 years ago

JuliaFully Spectral

posted in Got a question?

ZOS-API Python: How to deal with AttributeError and apply the correct enumeration

Helpfile documentation as well as the syntax being used by C#/Matlab are the same, they are based on .NET. However, when using python, we connect python with the windows application(OpticStudio) through a module named pywin32,  which is a package for Windows Extension, can provides access to many of the Windows APIs from Python. There is ‘translated’ work being done for interfaces, classes, objects and methods when connection being established using COM (or Python). And because of this, there are small part of attributes name are not mapped quite well, just as the above example shown (the upper and lower case for 'V' is not matched when compared with helpfile documentation). We are now making efforts to transit to a .NET package to eliminate the discrepancy. For now, if Attribute error appears and you have no idea what's the correct attribute names, _prop_map_get.keys() can help, for example, by listing keys name, attribute name used in python is lower case 'value'  here

3 years ago

Nicholas HerringerZemax Staff

posted in People & Pointers

OpticsTalk: Advanced ZPL macro programming

Additional example on plotting real entrance pupil in 3D layout. This example was provided by my colleague Michael Cheng. Here is a description on this macro: For wide angle system, it’s incapable to visualize the position and the size of a real entrance pupil in different field angles. With running this macro, real ray trace being did for capturing entrance pupil information for different field angles. The macro assumes axial-symmetric, only y field and the field angle in object is positive. Ray-Aiming should be turned on to correctly run this macro. Probably it can only worked with field type Angle and Object Height. How to use: Just run the macro, and open 3D Layout with showing central field and all configs. Sample file: Wide angle lens 210 degree field.zmx Update: The ZT_ENP analysis macro can now be found on the Code Exchange here:

2 years ago

Andrew.HerbertSingle Emitter

posted in Got a question?

Error on signing off from Zemax site

Hi Andrew, You may need some settings for your browser.  For example, the answer from web search may fix the problem:  https://answers.microsoft.com/en-us/msoffice/forum/msoffice_o365admin-mso_other-mso_o365b/server-error-in-application-cleared-my/78b3a5d6-78d4-4c42-8a0f-638fae7c9fb7?auth=1 Let me know if any further information we can provide. Best Regards,  Julia   

3 years ago

AllieZemax Staff

posted in Code Exchange

ZPL Macro: Read optimization operand across pupil

For the same purpose, the ray data can be retrieved through the interactive connection between ZOS-API & Excel. Description:Set customize ribbon (File>Options) to enable Developer tab in Excel Open VBA trhough Developer> Visual Basic It is required to load the ZOS-API assembly at the beginning. The macros can be checked from VBAProject> Modules Open the attached Exel file (with macro included), the Connect button and Surface Data button are linked to different macros. Click Interactive Extension, then the connect button. A message box will pop up and show the connected message. Click Surface Data button, LDE and FDE data of the current active lens file will be extracted Click any surface button from the generated surface button list, incident angles of rays on the target surface that tracing across the whole pupil from specific field will be retrieved and displayed on a newly opened sheet. Language:ZOS-API: ExcelDownload link:Download

2 years ago

JuliaFully Spectral

asked in 问题讨论

ZPL macro: 如何在ZPL中定义pi / π 3.1415926...

可以使用 Macro中的 Numeric function 来定义。ZPL的 Numeric function中有一些数学运算符，比如反三角函数 acos：常数 Pi 的定义 : π = 2*ACOS(0)

2 years ago

JuliaFully Spectral

asked in 问题讨论

Distortion: 如何获得相机校正算法中用到的畸变参数

参数k1, k2, k3的确定可通过对一组畸变值的拟合来获取。OpticStudio中的Grid Distortion分析中包含了畸变数据，以及predicted/read X/Y信息。这些数值都可通过相应的操作数（如使用REAX/REAY & PARX/PARY）来提取并可点击Grid Distortion> Text tab来查看。上面公式中的x,y 是归一化像面坐标。OS中提取的X/Y值是非归一化像面坐标，应做相应的转化后再拟合。OpticStudio中没有数据拟合求得参数的功能。因此拟合这一部分可通过其他软件如Matlab/Mathematics来实现。以下供参考： Matlab: https://stackoverflow.com/questions/44052831/how-to-find-radial-distortion-coefficients-between-two-sets-of-points

2 years ago

JuliaFully Spectral

asked in 问题讨论

在非序列中优化准直透镜，如何设置操作数NSDD的各参数

准直镜的优化可以将探测器的空间均匀性设为优化目标，利用优化向导可直接设置：所添加的操作数中，第2/4行NSDD 的作用是先清除探测器上的数据。第5行NSTR的作用是执行光线追迹。第6行NSDD和第8行NSDD的作用都是提取光线追迹后探测器上的数据。其中 NSDD 操作数的各个参数含义，可以从帮助手册的下面章节获得更多信息：The Optimize Tab (non-sequential ui mode) > Automatic Optimization Group (optimize tab, non-sequential) > Merit Function Editor (optimize tab, non-sequential) > NSC Operands 第8行中Pix#=-4， data=1 其中对应的含义如下：

2 years ago

JuliaFully Spectral

asked in 问题讨论

OpticStudio 可以导入UA3P的测试数据吗

OpticStudio中支持对于网格矢高（矢高点云）的导入，但对于数据类型有要求，采样点必须是在均匀网格内进行，数据文件格式如下图所示，dat文件中的第一行代表左上角X ,Y位置的矢高，然后从左往右遍历，直到下图第一行结束。。。 UA3P的数据采样顺序与上图不同。这是测量数据不能使用Grid Sag表面直接导入的原因之一。其二是由于Grid sag 的拟合方法的限制，采样边缘处的拟合会导致其结果并不准确（上图左下角来空白区域没有数据在拟合时以失高为0进行处理），上图每一个格点处的矢高值会影响其周围5X5格点区域失高的拟合，反之该点处的拟合同样受周围区域数据的影响。 OpticStudio在21.2以上版本中推出新的STAR module, 利用该功能可实现UA3P测试数据的导入。其数据格式非常简单，对UA3P输出的数据简单整理即可导入。见下图：

2 years ago

JuliaFully Spectral

asked in 问题讨论

OpticStudio中单模光纤耦合功能中显示的三个效率的含义？

系统效率：是源光束能量存在于光学系统中的部分。这个值由以下因素决定:入射光束NA，入瞳尺寸和位置，切趾，光学元件的透射率和渐晕。接收效率：是透射能量从出瞳耦合到接收光纤中的部分。该值由接收光纤的NA及像差大小决定。耦合效率：是由源光纤辐射能量耦合到接收光纤中的部分。该值是（系统效率 x 接收效率）系统效率和接收效率的乘积。最大效率：是假设系统没有像差情况下的耦合效率。

2 years ago

JuliaFully Spectral

asked in 问题讨论

ZPL中的 Function 和 Keywords 有什么区别

ZPL是 Zemax programming language 的简称。该语言类似于 BASIC 编程语言，ZPL 并非使用所有的BASIC语法。ZPL 从结构上讲包含变量（数字/字符串）、Function 以及 Keywords 三部分。Function 又有 numeric function, 和 string function。在使用中有些与 Keywords的命令非常类似。主要区别有两点：读取/提取当前系统中设定的某些参数使用 Function, 要更改系统的一些参数值时使用 Keywords。例如读取MFE（优化函数编辑器）中的优化函数的值，利用函数 OPEV/OPEW。修改某行操作数使用关键字SETOPERAND 。看返回值情况。关键字的使用通常无返回值，函数有一个或多个返回值。

2 years ago

JuliaFully Spectral

asked in 问题讨论

无焦系统中如何查看像面上的RMS光斑尺寸

可以在多重结构中添加一个结构，利用多重结构操作数关闭 afocal image space. 再利用评价函数操作数指定结构的number来计算相关物理量。例如：下图中的结构2设置为关闭 afocal image space. Multi- configuration editor setting再在Merit function edior中添加操作数来计算相关参数：Merit function editor added operands for configuration2

1 year ago

JuliaFully Spectral

asked in 问题讨论

如何利用ZPL macro 进行解空间全局搜索

1 year ago

JuliaFully Spectral

asked in 问题讨论

ZPL Macro: 如何更新使用文件定义的表面/物体

由文件定义的表面或物体在加载到OpticStudio后该表面/物体的 Comment栏中将显示所加载的文件，包含文件的extension。假设定义表面/物体的文件内容发生了更改，想要在ZPL中更新该表面或物体，可以通过设置此表面/物体的Comment内容来直接更新这个表面或物体。比如，现在有一个非序列物体Tabulated Faceted Toroid 所加载的 tob文件中的内容发生了更改，我可以通过以下命令实现该物体在OpticStudio中的更新，从而进行布局图更新甚至加入可能的优化循环： tobPath$= $DATAPATH()+"\Objects\Tabulated Objects\"filename$= "object reload.TOB"objnum=10SETNSCPROPERTY 1,objnum,1,0,filename$发挥作用的是上面的命令行SETNSCPROPERTY, 它设置了物体10的comment栏中的内容，为要加载的带有文件后缀的文件名称，从而实现非序列物体的更新。

1 year ago

JuliaFully Spectral

asked in 问题讨论

照明应用中的优化：可以根据探测器上想要的irradiance分布来优化自由曲面镜吗

OpticStudio 除了可胜任序列模式下的成像会聚系统的设计、优化以及评估之外，也能够应对非序列模式下的照明设计任务。例如在匀光或特定pattern照明优化的设计中，可利用以下的工具来实现优化目的：位图向导 Bitmap Wizard工具位于： Non-sequential mode> 优化> 优化向导当中Bitmap Wizard使用位图向导的软件版本要求：仅支持Premium 版本。软件顶部状态栏可查看(Standard/Professional/Premium)功能细节说明（帮助手册所在章节）：The Optimize Tab (non-sequential ui mode) > Automatic Optimization Group (optimize tab, non-sequential) > Merit Function Wizards (optimize tab, non-sequential) > Bitmap Wizard (optimize tab, non-sequential) 知识库文章资源（下文中有提到）：Using the OpticStudio Non-Sequential Optimization Wizards 示例文件：在所附加的文件中展示了通过位图向导将一张名为 square.bmp 的图片文件作为了优化的条件，要优化的是一自由曲面的各项参数，通过优化器的优化，最终可观察到初始的圆形分布的光斑被优化为矩形分布的结果。通过位图向导添加优化操作数结果对比：优化前后探测器上的incoherent irradiance结果, 其中布局图为优化前情形，自由曲面参数均为0为平面。先进行了局部优化，再使用Hammer就可得到期望中的结果。

1 year ago

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