Image-pickup optical system

Details Image-pickup optical system Image-pickup optical system

2007-08-07

2007-08-07

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S745000

Reexamination Certificate

active

11552282

ABSTRACT:
An image-pickup optical system includes, from the object side to the image side, a first lens unit having positive optical power, an aperture stop, and a second lens unit. A diffractive optical element and a lens composed of extraordinary partial dispersion material are appropriately disposed in the optical system. The image-pickup optical system is capable of reducing the generation of flare and ghosts at the diffractive optical element and effectively correcting chromatic aberration.

REFERENCES:
patent: 5790321 (1998-08-01), Goto
patent: 5796520 (1998-08-01), Maruyama
patent: 6268969 (2001-07-01), Ogawa
patent: 6313958 (2001-11-01), Ogawa
patent: 6381079 (2002-04-01), Ogawa
patent: 6496310 (2002-12-01), Fujimoto
patent: 0950911 (1999-10-01), None
patent: 06-324262 (1994-11-01), None
patent: 06-331887 (1994-12-01), None
patent: 2000-258685 (2000-09-01), None
SPIE vol. 1354, International Lens Design Conference (1990).

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3893521