CA2569643A1 - Contact lenses bearing marks - Google Patents

Contact lenses bearing marks Download PDF

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Publication number
CA2569643A1
CA2569643A1 CA002569643A CA2569643A CA2569643A1 CA 2569643 A1 CA2569643 A1 CA 2569643A1 CA 002569643 A CA002569643 A CA 002569643A CA 2569643 A CA2569643 A CA 2569643A CA 2569643 A1 CA2569643 A1 CA 2569643A1
Authority
CA
Canada
Prior art keywords
identifying mark
contact lens
contact lenses
holes
lens
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
CA002569643A
Other languages
French (fr)
Other versions
CA2569643C (en
Inventor
Jongliang Wu
Khaled A. Chehab
Carl G. Crowe
Victor Lust
Richard J. Nason
Timothy R. Poling
Jon Scott Walker
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
Individual
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
Priority claimed from US09/052,684 external-priority patent/US6203156B1/en
Application filed by Individual filed Critical Individual
Publication of CA2569643A1 publication Critical patent/CA2569643A1/en
Application granted granted Critical
Publication of CA2569643C publication Critical patent/CA2569643C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

This invention provides a contact lens comprising a front surface, a back surface, and an identifying mark, wherein said identifying mark comprises one or more holes depressed into at least one of said surfaces of said lens.

Claims (4)

1. A contact lens comprising a front surface, a back surface, and an identifying mark, wherein said identifying mark comprises one or more holes depressed into at least one of said surfaces of said lens, wherein the diameter or width. of said at least one of said holes is greater than 100 microns, and the radius of curvature at the junction where the surface of said hole and the surface of said contact lens meet is greater than 10 microns.
2. The contact lens of claim 21 wherein for said at least one hole having a diameter or width of greater than 100 microns, the angle formed at the junction where the surface of said hole and the surface of said contact lens meet is less than 20°.
3. A contact lens comprising a front surface, a back surface, and an identifying mark, wherein said identifying mark comprises a plurality of holes depressed into at least one of said surfaces of said lens, wherein said identifying mark comprises more than 10 holes per mm2 surface area of said identifying mark.
4. The contact lens of claim 23, wherein said identifying mark comprises more than 30 holes per mm2 surface area of said identifying mark.
CA2569643A 1998-03-31 1999-03-29 Contact lenses bearing marks Expired - Lifetime CA2569643C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/052,684 1998-03-31
US09/052,684 US6203156B1 (en) 1998-03-31 1998-03-31 Contact lenses bearing marks
CA002267590A CA2267590C (en) 1998-03-31 1999-03-29 Contact lenses bearing marks

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002267590A Division CA2267590C (en) 1998-03-31 1999-03-29 Contact lenses bearing marks

Publications (2)

Publication Number Publication Date
CA2569643A1 true CA2569643A1 (en) 1999-09-30
CA2569643C CA2569643C (en) 2010-03-16

Family

ID=37682506

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2569643A Expired - Lifetime CA2569643C (en) 1998-03-31 1999-03-29 Contact lenses bearing marks

Country Status (1)

Country Link
CA (1) CA2569643C (en)

Also Published As

Publication number Publication date
CA2569643C (en) 2010-03-16

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Legal Events

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MKEX Expiry

Effective date: 20190329