CA2278428A1 - Marked contact lens bearing optical marking element - Google Patents

Marked contact lens bearing optical marking element Download PDF

Info

Publication number
CA2278428A1
CA2278428A1 CA 2278428 CA2278428A CA2278428A1 CA 2278428 A1 CA2278428 A1 CA 2278428A1 CA 2278428 CA2278428 CA 2278428 CA 2278428 A CA2278428 A CA 2278428A CA 2278428 A1 CA2278428 A1 CA 2278428A1
Authority
CA
Canada
Prior art keywords
contact lens
marking
microlens
marking element
optical marking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2278428
Other languages
French (fr)
Other versions
CA2278428C (en
Inventor
Grant Gabrielian
Robert Marie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson and Johnson Vision Care Inc
Original Assignee
SEGMENT TECHNOLOGIES Inc
Canadian Contact Lens Laboratories Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEGMENT TECHNOLOGIES Inc, Canadian Contact Lens Laboratories Ltd filed Critical SEGMENT TECHNOLOGIES Inc
Priority to CA 2278428 priority Critical patent/CA2278428C/en
Publication of CA2278428A1 publication Critical patent/CA2278428A1/en
Application granted granted Critical
Publication of CA2278428C publication Critical patent/CA2278428C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/048—Means for stabilising the orientation of lenses in the eye
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/021—Lenses; Lens systems ; Methods of designing lenses with pattern for identification or with cosmetic or therapeutic effects
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

The marked contact lens has at least one microlens optical marking element integrally formed on the surface of the contact lens in a peripheral area thereof. The microlens marking elements are of shallow depth, yet focus light to appear as relatively bright (or dark) marking objects. The marking elements may be spherical or cylindrical microlens formations. The dimensions of the microlenses are chosen so as to avoid any irritation when worn by the user. The marking objects identify the lens source, proper orientation or, in the case of soft lenses, inversion.
CA 2278428 1999-07-23 1999-07-23 Marked contact lens bearing optical marking element Expired - Lifetime CA2278428C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2278428 CA2278428C (en) 1999-07-23 1999-07-23 Marked contact lens bearing optical marking element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2278428 CA2278428C (en) 1999-07-23 1999-07-23 Marked contact lens bearing optical marking element

Publications (2)

Publication Number Publication Date
CA2278428A1 true CA2278428A1 (en) 2001-01-23
CA2278428C CA2278428C (en) 2009-09-01

Family

ID=4163822

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2278428 Expired - Lifetime CA2278428C (en) 1999-07-23 1999-07-23 Marked contact lens bearing optical marking element

Country Status (1)

Country Link
CA (1) CA2278428C (en)

Also Published As

Publication number Publication date
CA2278428C (en) 2009-09-01

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Legal Events

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