Optical: systems and elements – Lens – Including a nonspherical surface
Reexamination Certificate
2011-06-07
2011-06-07
Harrington, Alicia M (Department: 2873)
Optical: systems and elements
Lens
Including a nonspherical surface
C359S762000
Reexamination Certificate
active
07957074
ABSTRACT:
An imaging lens system is provided an includes: in order from the object side, a first lens which has a negative power; a second lens which has a negative power; a third lens; a fourth lens which has a positive power; a fifth lens; and a sixth lens which has a positive power. The first lens is made of glass, and the second to sixth lenses are made of plastic. At least one lens surface of each of the second to sixth lenses is aspheric, and each of the third lens and the fifth lens is made of a material having an Abbe number of 45 or less at the d-line.
REFERENCES:
patent: 7301578 (2007-11-01), Ohzawa et al.
patent: 2007/0217035 (2007-09-01), Baba
patent: 2006-284620 (2006-10-01), None
patent: 2007-249073 (2007-09-01), None
patent: 2009-92797 (2009-04-01), None
patent: 2009-92798 (2009-04-01), None
Birch & Stewart Kolasch & Birch, LLP
Fujinon Corporation
Harrington Alicia M
LandOfFree
Imaging lens system and imaging apparatus using the imaging... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Imaging lens system and imaging apparatus using the imaging..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imaging lens system and imaging apparatus using the imaging... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2643390