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Questions related from Steven Ou
Hello friends, We've been adjusting a laser collimating light path, and we found an interesting phenomenon. We move the collimator along the light axis, we can get a clear and round spot, and...
05 January 2024 5,814 1 View
Hello everyone I've been working on the improvement of the DMD based maskless lithography. I read somewhere else that in the UV/DUV lithography industry, in order to measure the aerial image...
01 December 2023 7,840 0 View
Hello friends, I'm working on the partial coherence calculation of a micro lens array(MLA) based system, and first I need to know the NA of the rectangular beam. Conventionally, the beam is a...
13 September 2023 8,351 6 View
Hello guys, As far as I know, a shack-hartmann wavefront sensor can measure some optical systems, can it measure a doube-telecentric lens?
09 June 2023 7,162 2 View
Hello everyone, I’ve been racking my brain to try to figure out the image aberration balance method with unknown lens design data method, the optical sketch is shown below,the camera is put at...
26 November 2022 8,441 1 View
Hello everyone, I'd like to design a device which brings the natural sun light into the plastic optical fiber, does anyone know in which way it can have the max coupling efficiency, ball...
07 January 2022 3,390 3 View
I turned on an LED and found the chip architecture was imaged onto the wall. this could lead a big trouble when I wanted to use this LED, but I couldn't know this via reading the spec. did anyone...
02 December 2021 1,195 8 View
Hello friends, I've been working on the optical properties analysis of the (microlens array) Kohler integrator. and I'm confused about the NA calculation. Conventionally, the NA for a...
01 January 1970 9,934 11 View
