Flat Top distribution by means of 2 arrays - advanced microoptic systems
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Flat Top distribution by means of 2 arrays
This optical scheme allows for 2 positive MLAs or single monolithic 2-array system of positive or negative or both positive and negative microlenses
Wavelength.......................... | λ |
Lens pitch............................. | PA |
A2 focal length...................... | fA2 |
Lens FL focal length............... | fL |
Flat Top size........................ | DFT |
Fresnel Number..................... | FN |
|
|
|
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FN < 1 |
- severe diffraction effects |
1 < FN < 5 |
- diffraction effects |
0 < FN < 20 |
- acceptable |
FN > 20 |
- excellent |
