Optical device for scanning still images in television

Details Optical device for scanning still images in television Optical device for scanning still images in television

1988-09-01

1989-09-19

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358215, 358471, H04N 530, H04N 340

Patent

active

048686638

ABSTRACT:
The invention relates to a device for scanning still images as applicable in particular to high-definition television (HDTV) systems. In accordance with customary practice, the entire still image is converted by an optical system having an oscillating mirror to an image which passes in front of a linear sensor having photosensitive elements. Diffusion of the optical system causes detachment of dark areas which are adjacent to bright areas. In order to prevent this detachment, the movement of a shutter provided with slits is synchronized with the movement of the mirror so as to occult part of the image which passes in front of the sensor, thus leaving only the zone located at the level of the sensor.

REFERENCES:
patent: 3624291 (1971-11-01), Miyata
patent: 4264921 (1981-04-01), Pennington et al.

Affiliated with

Also associated with

Rating

Optical device for scanning still images in television 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 device for scanning still images in television, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical device for scanning still images in television will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-373212