Photographic lens for electronic still camera

Details Photographic lens for electronic still camera Photographic lens for electronic still camera

1997-12-23

1999-10-05

Epps, Georgia

Optical: systems and elements

Lens

Multiple component lenses

359752, 359761, 359763, 359770, G02B 960

Patent

active

059633816

ABSTRACT:
Successively from an object side, a negative lens having a concave surface directed onto an image surface side, a positive meniscus lens having a convex surface directed onto the image surface side, a positive lens having a convex surface directed onto the image surface side, a negative lens having a concave surface directed onto the image surface side, and a biconvex lens are disposed, thereby yielding a photographic lens for electronic still camera which can favorably correct distortion while attaining a compact size and a wide angle of view. Successively disposed from the object side are a negative first lens L.sub.1 having a concave surface directed onto the image surface side, a second lens L.sub.2 made of a positive meniscus lens having a convex surface directed onto the image surface side, a third lens L.sub.3 made of a biconvex lens whose surface with a stronger curvature is directed onto the image surface side, a negative fourth lens L.sub.4 having a concave surface directed onto the image surface side, and a fifth lens L.sub.5 made of a biconvex lens; while being configured to satisfy the following conditional expressions (1) to (4):

REFERENCES:
patent: 2835168 (1958-05-01), Lange
patent: 2922337 (1960-01-01), Glatzel
patent: 5589988 (1996-12-01), Suenaga
patent: 5682269 (1997-10-01), Kimura et al.

Affiliated with

Also associated with

Rating

Photographic lens for electronic still camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographic lens for electronic still camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic lens for electronic still camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1178661