Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1999-06-11
2000-11-14
Mack, Ricky
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
359631, 359633, G02B 2714
Patent
active
061478083
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 a first prism placed on the object side and a second prism placed on the image side and does not form an intermediate image. The first prism has a first surface through which a light beam from an object enters the first prism, and a second surface that reflects the light beam entering through the first surface in the first prism. The first surface also reflects the light beam reflected by the second surface in the first prism. The first prism further has a third surface through which the light beam reflected by the first surface exits from the first prism. The first or second surface has a rotationally asymmetric surface configuration that gives a power to a light beam. The second prism has at least one reflecting surface that reflects a light beam in the second prism. The reflecting surface has a rotationally asymmetric surface configuration that gives a power to a light beam and corrects aberrations due to decentration.
REFERENCES:
patent: 5699194 (1997-12-01), Takahashi
patent: 5701202 (1997-12-01), Takahashi
patent: 5745295 (1998-04-01), Takahashi
patent: 5751494 (1998-05-01), Takahashi
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 32: 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.
Mack Ricky
Olympus Optical Co,. Ltd.
LandOfFree
Decentered 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 Decentered image-forming optical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decentered image-forming optical system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2070920