×

Lens system, wide-angle lens, optical apparatus equipped with lens system, and method for manufacturing lens system

  • US 8,503,110 B2
  • Filed: 09/07/2010
  • Issued: 08/06/2013
  • Est. Priority Date: 09/09/2009
  • Status: Active Grant
First Claim
Patent Images

1. A lens system comprising, in order from an object side:

  • a first lens constructed by a negative meniscus lens having a convex surface facing the object side;

    a cemented lens component having positive refractive power as a whole constructed by a second lens having positive refractive power cemented with a third lens having negative refractive power;

    a fourth lens having negative refractive power;

    a fifth lens having positive refractive power; and

    a sixth lens having positive refractive power, andthe following conditional expression being satisfied;


    0.01<

    d
    2/(−

    f1)<

    0.15where d2 denotes a distance along an optical axis between the first lens and the second lens, and f1 denotes a focal length of the first lens.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×