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Dear everyone, I am trying to create a matrix projection from a laser. Color is not essential on this stage. The theory is that a cross-type laser and a "star field" diffraction grating in front of it will provide the result shown below. Can anyone confirm this? Or provide a picture of the...

I am looking to acquire some diffraction gratings, but I want to be sure I understand them. Therefore I have two general questions: 1. How are specs for DGs given? - How do I know the angle and amount of new dots? I.e how tightly spaced they are? 2. How are they usually mounted? I understand...

Hi everyone! First of all: let it be clear that I am a total newbie when it comes to lasers. Therefore I will greatly appreciate any help and guidance provided. Thank you so much for taking the time to read this. For a student project not really related to lasers I am in need of a projected...