Focus-position compensator

Details Focus-position compensator Focus-position compensator

2005-03-15

2005-03-15

Mack, Ricky (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C359S626000

Reexamination Certificate

active

06867921

ABSTRACT:
The present invention is directed towards a focus-position compensator for reducing focus variations on a microlens array. The focus-position compensator comprises a plurality of tiles that are affixed to a structure disposed between the lenslets of the microlens array and the target of the collimated light from the lenslets. Each tile refractive index and tile thickness is chosen to obtain a tile focus-position correction that will apply to a region of the microlens array.

REFERENCES:
patent: 5661531 (1997-08-01), Greene et al.
patent: 5973844 (1999-10-01), Burger
patent: 6101040 (2000-08-01), Itoh
patent: 6124974 (2000-09-01), Burger
patent: 6381072 (2002-04-01), Burger
patent: 20030063390 (2003-04-01), Brown

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