Optical: systems and elements – Lens – With graded refractive index
Reexamination Certificate
2007-05-29
2007-05-29
Schwartz, Jordan (Department: 2873)
Optical: systems and elements
Lens
With graded refractive index
C359S726000, C359S534000
Reexamination Certificate
active
10984344
ABSTRACT:
An optically retro-reflecting sphere includes an inner sphere and an outer concentric spherical shell, and can be coupled to a reflective surface. Light entering the optically retro-reflecting sphere from an incident direction is reflected by the sphere generally towards an exit direction, where the exit direction is parallel and opposite to the incident direction. The inner sphere and outer shell have different refractive indices, selected so that the reflected light is reflected with a non-uniform angular distribution about the exit direction.
REFERENCES:
patent: 1959090 (1934-05-01), Wood
patent: 2243434 (1941-05-01), Menke
patent: 2407680 (1946-09-01), Palmquist et al.
patent: 3919031 (1975-11-01), White
patent: 4422733 (1983-12-01), Kikuchi et al.
patent: 4848882 (1989-07-01), Suzuki et al.
patent: 4851664 (1989-07-01), Rieger
patent: 4889409 (1989-12-01), Atcheson
patent: 4935630 (1990-06-01), Merchant
patent: 5047776 (1991-09-01), Baller
patent: 5357371 (1994-10-01), Minott
patent: 5903391 (1999-05-01), Toshima et al.
patent: 6346311 (2002-02-01), Yeo et al.
patent: 6842282 (2005-01-01), Kuroda et al.
patent: 7036944 (2006-05-01), Budd et al.
patent: GB 1477175 (1977-06-01), None
patent: 1 477 175 (1977-06-01), None
patent: 2000-075115 (2000-03-01), None
patent: 2000075115 (2000-03-01), None
patent: WO 2005/022210 (2005-03-01), None
patent: WO 2005022210 (2005-03-01), None
Koch Tim R.
Lerner Scott
Prasad Ravi
Jones James C.
Schwartz Jordan
LandOfFree
Optically retro-reflecting sphere does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optically retro-reflecting sphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optically retro-reflecting sphere will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3734548