Image-forming optical system

Details Image-forming optical system Image-forming optical system

1999-06-14

2000-09-26

Sugarman, Scott J.

Optical: systems and elements

Lens

With reflecting element

359720, 359738, G02B 1700, G02B 302, G02B 900

Patent

active

061249890

ABSTRACT:
A high-performance image-forming optical system made compact and thin by folding an optical path using reflecting surfaces arranged to minimize the number of reflections. The image-forming optical system has only one prism member. The prism member has a first surface through which a light beam enters the prism member, a second surface reflecting the incident light beam in the prism member, a third surface reflecting the reflected light beam in the prism member, and a fourth surface through which the light beam exits from the prism member. At least one of the second and third surfaces has a curved surface configuration that gives a power to a light beam. The curved surface configuration has a rotationally asymmetric surface configuration that corrects aberrations due to decentration. A pupil is provided between the first and fourth surfaces, for example, on the second surface.

REFERENCES:
patent: 5699194 (1997-12-01), Takahashi
patent: 5701202 (1997-12-01), Takahashi
patent: 5745295 (1998-04-01), Takahashi
patent: 5936773 (1999-08-01), Togino
patent: 5963376 (1999-10-01), Togino
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 010534976, Japanese Patent Pub. 7-333551 Jun. 1994, EPA 687932 Abst Dec. 1995.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 011965452, Japanese Patent Pub. 10-153748 Jun. 1998.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 010585485, Japanese Patent Pub. 07-333505 Dec. 1995.
Patent Abstracts of Japan, Pub. No. 08-292,368 Nov. 1996.
Patent Abstracts of Japan, Pub. No. 08-292,371 Nov. 1996.
Patent Abstracts of Japan, Pub. No. 08-292,372 Nov. 1996.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 011144717, Japanese Patent Pub. 09-005650 Jan. 1997.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 011662889, Japanese Patent Pub. 09-090229 Apr. 1997.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 011459296, Japanese Patent Pub. 09-211331 Jan. 1996.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 011426976, Japanese Patent pub. 09-222561 Feb. 1996.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 011498469, Japanese Patent Pub. 09-222563 Aug. 1997, EP 790513 Abst Aug. 1997.
European Abstract Dialog(R)File 352: Derwent WPI, 1999, No. 011529109, Japanese Patent Pub. 09-258105 Mar. 1996.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 011529109, Japanese Patent Pub. 09-258106 Mar. 1993, EP 802436 A2 Oct. 1997.
European Abstract, Dialog(R)File 352: Derwent WPI, 1999, No. 011426976, Japanese Patent Pub. 10-020196 Jul. 1996, EP 790513 A2 Aug. 1997.

Affiliated with

Also associated with

Rating

Image-forming optical system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image-forming optical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image-forming optical system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2105140