Observation optical system and optical apparatus

Details Observation optical system and optical apparatus Observation optical system and optical apparatus

2006-04-25

2006-04-25

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Lens

With multipart element

C359S570000, C359S601000, C359S614000, C359S707000, C359S605000, C359S606000, C359S737000

Reexamination Certificate

active

07035022

ABSTRACT:
An observation optical system is disclosed with which the Fresnel reflection at the surfaces of optical members can be reduced, the transmittance can be improved, and the surface reflection ghost that occur among a plurality of optical surfaces can be suppressed. The observation optical system of the present invention comprises a plurality of optical surfaces, and a fine periodic structure, with a period smaller than the wavelength of incident light, is provided at an effective optical region of at least one surface among the aforementioned plurality of optical surfaces.

REFERENCES:
patent: 5442481 (1995-08-01), Hasushita
patent: 2002/0015232 (2002-02-01), Nakai
patent: 2002/0089750 (2002-07-01), Hoshi
patent: 2002/0097497 (2002-07-01), Kamo
patent: 2002/0135869 (2002-09-01), Banish et al.
patent: 2003/0174201 (2003-09-01), Kimura
patent: 2004/0032667 (2004-02-01), Gale et al.
patent: 7-77730 (1995-03-01), None
patent: 8-179400 (1996-07-01), None
patent: 2002-98915 (2002-05-01), None

Affiliated with

Also associated with

Rating

Observation optical system and optical apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3557002