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Ophthalmic lenses with reduced chromatic blur

  • US 6,851,803 B2
  • Filed: 10/24/2002
  • Issued: 02/08/2005
  • Est. Priority Date: 10/24/2002
  • Status: Expired due to Fees
First Claim
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1. An ophthalmic lens, comprising a spherical power Φ

  • , a diffractive element comprising a first spherical power Φ

    D and a refractive element comprising a second spherical power Φ

    R, wherein the diffractive element comprises a material having an Abbe number of about 30 to about 60, wherein;



    Φ

    R
    VR
    +Φ

    D
    VD


    =0
    and wherein VR is the Abbe number of the refractive element of the lens and VD is an effective Abbe number of the diffractive element of the lens.

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