Zero reflectance design for tilted devices

Details Zero reflectance design for tilted devices Zero reflectance design for tilted devices

2005-12-13

2005-12-13

Dunn, Drew A. (Department: 2872)

Optical: systems and elements

Glare or unwanted light reduction

Directional or angular discrimination

C359S601000, C359S900000, C250S332000

Reexamination Certificate

active

06974219

ABSTRACT:
Techniques that eliminate or otherwise reduce retroreflections associated with focal plane arrays (cooled and uncooled) and other tilted devices are disclosed. The device topology is designed so that incoming radiation is reflected outside of the incoming focusing optical cone. Planarization is used to eliminate concave geometries and angled sidewalls can be used to eliminate convex geometries, as such geometries cause retroreflection. The resultant structure is covered with reflective material (e.g., aluminum, titanium tungsten, or other standard metallization), which not only safely reflects light from the scene, but also prevents reflections from the underlying geometries of the via. Devices configured in accordance with the principles of the present invention require less tilt, thereby minimizing optical distortion.

REFERENCES:
patent: 5086328 (1992-02-01), Kasai et al.
patent: 5485304 (1996-01-01), Kaeriyama
patent: 5561593 (1996-10-01), Rotolante
patent: 5602393 (1997-02-01), Gerard
patent: 5629520 (1997-05-01), Sonstroem
patent: 5760398 (1998-06-01), Blackwell et al.
patent: 5811815 (1998-09-01), Marshall et al.
patent: 5818043 (1998-10-01), Buchy et al.
patent: 5929440 (1999-07-01), Fisher
patent: 6157404 (2000-12-01), Marshall et al.
patent: 6245667 (2001-06-01), Wang et al.
patent: 6580509 (2003-06-01), Hutchin et al.
patent: 6667479 (2003-12-01), Ray
patent: 6721539 (2004-04-01), O'Brien et al.
patent: 6862147 (2005-03-01), Sonstroem
patent: 2002/0011759 (2002-01-01), Adams et al.
patent: 2002/0135869 (2002-09-01), Banish et al.
patent: WO 97/21250 (1997-06-01), None

Affiliated with

Also associated with

Rating

Zero reflectance design for tilted devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zero reflectance design for tilted devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zero reflectance design for tilted devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3520566