I am relatively new to zemax/optical design as a whole and am trying to add a merit function to set the effective focal length of the system and can’t seem to find the correct menu/drop down that will give me this option. All I could find were work arounds to set f/# but would appreciate if someone could point me to where I can directly enter in the desired effective focal length. Thanks!
Best answer by David
Once you’ve generated a default merit function using the wizard, you can manually add your own operands. If you place them above the DMFS operand you can regenerate the default merit function without overwriting your manually added operands.
The operand to control the effective focal length is EFFL.
For example:
+4Once you’ve generated a default merit function using the wizard, you can manually add your own operands. If you place them above the DMFS operand you can regenerate the default merit function without overwriting your manually added operands.
The operand to control the effective focal length is EFFL.
For example:
Hello chrisw,
I agree with David’s suggestion. Therefore note that “Wave” in the above case is the first wavelength that you defined in “wavelengths editor”! If you jsut want to inspect effective focal length a certain “Target” is not necessary and set “Weight” to zero. Otherwise optimization process will try to set your optical system to sepcified target value accroding to non-zero weight.
Open help window pressing “F1” and enter “Optimization Operands” to obtain more information on merit function optimization operands and restrictions …
Kind regards,
Christian
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
Do not provide any information or data that is restricted by applicable law, including by the People’s Republic of China’s Cybersecurity and Data Security Laws ( e.g., Important Data, National Core Data, etc.).
不要提供任何受适用法律，包括中华人民共和国的网络安全和数据安全法限制的信息或数据（如重要数据、国家核心数据等）。