Systems and methods for speckle reduction through bandwidth...

Details Systems and methods for speckle reduction through bandwidth... Systems and methods for speckle reduction through bandwidth...

2005-12-13

2005-12-13

Eisen, Alexander (Department: 2674)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S032000, C353S031000, C353S094000, C372S023000

Reexamination Certificate

active

06975294

ABSTRACT:
A laser imaging system with reduced speckle is disclosed. The laser imaging system includes spatially superpositioned 1-D arrays or alternatively 2-D arrays of independent emitters of laser radiation, with each emitter having a spectral bandwidth Δλicentered at some arbitrary wavelength λ0i. The elements of the array are allowed, by design, to have a slightly different central wavelength, thereby creating an ensemble bandwidth ΔΛ which is much greater than the bandwidth Δλiof any individual emitter in the array. The resulting increased bandwidth reduces speckle in a displayed image.

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