Optical: systems and elements – Single channel simultaneously to or from plural channels
Patent
1996-07-09
1998-05-12
Nelms, David C.
Optical: systems and elements
Single channel simultaneously to or from plural channels
359823, G02B 2710, G02B 702
Patent
active
057514917
ABSTRACT:
A light beam emitted from a laser diode passes through a polarization beam splitter, a movable mirror, a reference prism supported in a pair of rails, a sliding mirror and is incident on a cat's-eye optical system. The light beam reflected in the cat's-eye optical system returns to the polarization beam splitter along an optical path of the incident light beam, is separated by a polarizing separating plane and is directed to a television camera. The front surface of the reference prism is perpendicular to the rails. Thus, the light beam reflected at the front surface of the reference prism is directed to the television camera along an optical path which is inclined relative to the optical path of the incident light beam in accordance with the direction of the rails. Consequently, if the inclination of the movable mirror is adjusted such that the light spots of both of the reflected beams displayed on the monitor coincide, the optical path of the incident light beam is parallel to the rails.
REFERENCES:
patent: 4850686 (1989-07-01), Morimoto et al.
patent: 5223970 (1993-06-01), Oono et al.
patent: 5237457 (1993-08-01), Oono et al.
patent: 5249173 (1993-09-01), Tanaka
patent: 5341246 (1994-08-01), Oono et al.
patent: 5343332 (1994-08-01), Oono et al.
patent: 5546238 (1996-08-01), Devenyi
patent: 5576897 (1996-11-01), Kuo
patent: 5631776 (1997-05-01), Weigand et al.
Kase Toshiyuki
Nishikawa Hiroshi
Asahi Kogaku Kogyo Kabushiki Kaisha
Mack Ricky
Nelms David C.
LandOfFree
Method of adjusting beam axis of optical pick-up does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of adjusting beam axis of optical pick-up, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of adjusting beam axis of optical pick-up will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-987801