Light amount adjusting apparatus, optical equipment, optical...

Details Light amount adjusting apparatus, optical equipment, optical... Light amount adjusting apparatus, optical equipment, optical...

2006-08-29

2006-08-29

Palmer, Phan (Department: 2874)

Optical waveguides

Miscellaneous

C385S024000, C250S208100, C359S589000, C359S726000, C348S207990, C348S218100, C348S333020

Reexamination Certificate

active

07099555

ABSTRACT:
An optical filter is disclosed which adjusts the contours of blurred images and maintains the size of blurred images. The optical filter includes a substrate being substantially transparent and a first layer whose optical density changes continuously, formed on the substrate. A transmission rate of the first layer decreases substantially linearly from a center toward a periphery of the optical filter, and the transmission rate distribution is symmetric with respect to the center.

REFERENCES:
patent: 3843235 (1974-10-01), Mino et al.
patent: 6377305 (2002-04-01), Onuki
patent: 2004/0021758 (2004-02-01), Miyazaki et al.
patent: 2005/0068428 (2005-03-01), Uchida
patent: 10-268382 (1998-10-01), None
Shashin Kogyo (Photo Industry), Apr. 1999, pp. 74-77.

Affiliated with

Also associated with

Rating

Light amount adjusting apparatus, optical equipment, optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light amount adjusting apparatus, optical equipment, optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light amount adjusting apparatus, optical equipment, optical... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3632227