Optical low-pass filtering

Details Optical low-pass filtering Optical low-pass filtering

1995-12-20

1998-04-14

Faile, Andrew

Television

Camera, system and detail

Optics

359497, H04N 5225, G02B 530

Patent

active

057398550

ABSTRACT:
In a camera including an image sensor (4R, 4G, 4B) having a sampling frequency (fs), and an optical low-pass filter arrangement arranged in an optical path with the image sensor (4R, 4G, 4B), the optical low-pass filter arrangement comprises a first birefringent optical filter element having a frequency response with a frequency trap point at the sampling frequency (fs) of the image sensor (4R, 4G, 4B), and a second birefringent optical filter element having a frequency response with a first frequency trap point at two thirds of the sampling frequency (fs) of the image sensor (4R, 4G, 4B), and a second frequency trap point at twice the sampling frequency (fs) of the image sensor (4R, 4G, 4B).

REFERENCES:
patent: 3558224 (1971-01-01), Murgas et al.
patent: 4743100 (1988-05-01), Nakada et al.
patent: 5069530 (1991-12-01), Nishida et al.
patent: 5452129 (1995-09-01), Shiraishi
patent: 5471343 (1995-11-01), Takasugi
patent: 5477381 (1995-12-01), Sasaki et al.

Affiliated with

Also associated with

Rating

Optical low-pass filtering does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical low-pass filtering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical low-pass filtering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-640157