Title:
PROGRESSIVE ADDITION LENSES WITH MODIFIED CHANNEL POWER PROFILES
Document Type and Number:
WIPO Patent Application WO/2000/072051
Kind Code:
A2
Abstract:
The present invention provides multifocal ophthalmic lenses. In particular, the invention provides lenses in which channel power progression modification is achieved without a significant increase in unwanted astigmatism.
Inventors:
MENEZES EDGAR V
Application Number:
PCT/US2000/011949
Publication Date:
November 30, 2000
Filing Date:
May 02, 2000
Export Citation:
Assignee:
JOHNSON & JOHNSON VISION CARE (US)
International Classes:
G02B3/04; G02C7/06; G02B3/10; G02C7/02; (IPC1-7): G02B1/00
Domestic Patent References:
| WO1999018471A1 | 1999-04-15 |
Foreign References:
| US5715032A | 1998-02-03 | |||
| US5771089A | 1998-06-23 | |||
| US5137343A | 1992-08-11 |
Attorney, Agent or Firm:
Gianneschi, Lois A. (NJ, US)
Download PDF:
Claims:
What is claimed is:
| 1. | A lens comprising: a.) at least one first surface that is a progressive addition or regressive surface, the at least one surface having a first channel with a first channel length and a channel power profile and; b.) at least one modifying surface having a power profile, wherein the channel power profile of the lens is the vector sum of the first surface's channel power profile and the modifying surface's power profile and the lens channel power profile, channel length, or both is modified relative to the first surface's channel power profile and channel length. |
| 2. | The lens of claim 1, wherein the lens is a spectacle lens. |
| 3. | The lens of claim 1, wherein the at least one surface is a progressive addition surface. |
| 4. | The lens of claim 1, wherein the at least one surface is a regressive surface. |
| 5. | The lens of claim 1, wherein the modification is a change in the channel power profile. |
| 6. | The lens of claim 5, wherein the channel power is increased in the lower portion of the channel. |
| 7. | The lens of claim 5, wherein the power is increased over substantially the entire channel length. |
| 8. | The lens of claim 5, wherein a power plateau is formed within the channel. |
| 9. | The lens of claim 5, wherein the modification further comprises a change in the channel length. |
| 10. | The lens of claim 1, wherein the modification is a change in the channel length. |
| 11. | The lens of claim 10, wherein the channel length is shortened. |
| 12. | The lens of claim 10, wherein the channel length is lengthened. |
| 13. | A lens comprising: a.) at least one first progressive addition surface, the first surface having a first channel with a first channel length and a channel power profile and; b.) at least one modifying surface having a power profile, wherein the channel power profile of the lens is the vector sum of the first surface's channel power profile and modifying surface's power profile and the lens channel power profile, channel length, or both is modified relative to the first surface's channel power profile and channel length. |
| 14. | A method for providing a lens with a modified channel power profile, the method comprising the steps of: a.) providing at least one first surface that is a progressive addition or regressive surface, the at least one surface having a first channel with a first channel length and a channel power profile and; b.) providing at least one modifying surface having a power profile wherein the channel power profile of the lens is the vector sum of the first surface's channel power profile and the modifying surface's power profile and the lens channel power profile, channel length, or both is modified relative to the first surface's channel power profile and channel length. |
| 15. | The method of claim 14, wherein the lens is a spectacle lens. |
| 16. | The method of claim 14, wherein the at least one surface is a progressive addition surface. |
| 17. | The method of claim 14, wherein the at least one surface is a regressive surface. |
| 18. | The method of claim 14, wherein the modification is a change in the channel power profile. |
| 19. | The method of claim 18, wherein modification further comprises a change in the channel length. |
| 20. | The method of claim 14, wherein the modification is a change in the channel length. |
Description:
INTERNATIONAL SEARCH REPORT InternationalAppli. JnNo-2- PCT/US 00/11949 C. (Continuation) DOCUMENTS CONSIDERED TO BE RELEVANT Category Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No. A US 5137343 A 1-3, (KELCH et al.) 14-16 11 August 1992, column 1, line 50-column 3, line 36, column 5, line 22-column 6, line 64. ANHANG ANNEX i Zum internationalen Recherchenbe-To the International Search Au rapport de recherche inter- richt uber die internationale Patent-Report to the international Patent national retativ à la demande de anmeldung Nr Application No. brevet international n° PCT/US 00/11949 SAE 283091 In diesem Anhang sind die Mitglieder der This annex lists the patent family members La pressente annexe indique les membres de Patentfamilien der im obengenannten relating to the patent documents cited in the la famille de brevets relatifs aux documents internationalen Recherchenbericht above-mentioned search report. de brevets cites dans le rapport de angefuhrten Patentdokumente angegeben. The European Patent Office is in no way recherche international visée ci-dessus. Les Diese Angaben dienen nur zur liable for these particulars which are merely renseignements fournis sont donnes å titre Unterrichtung und erfolgen ohne Gewahr. given for the purpose of information. indicatif et n'engagent pas la responsibilite deI'Office. Im Recherchenbericht Datum der Mitglied (er) der Datum der angeführte Patentdokumente Verdffenttichung Patentfamilie Veröffentlichung Patent document cited Publication Patent family Publication in search report date member (s) date Document de brevet cite Date de Membre (s) de la Date de dans le rapport de recherche publication famille de brevets publication WOA1 9918471 15-04-1999 AU A1 11858/99 27-04-1999 EP A1 1019778 19-07-2000 US A 6000798 14-12-1999 US A 5715032 03-02-1998 none US A 5771089 23-06-1998 AT E 40222 15-02-1989 AT E 47630 15-11-1989 AU A1 47709/85 07-03-1986 AU Al 47713/85 07-03-1986 AU B2 574226 30-06-1988 AU A1 41624/89 04-01-1990 AU B2 612283 04-07-1991 DE A1 3430334 27-02-1986 DE C2 3430334 05-02-1987 DE CO 3567744 23-02-1989 DE CO 3573953 30-11-1989 EP A1 191831 27-08-1986 EP A1 193552 10-09-1986 EP B1 191831 18-01-1989 EP B1 193552 25-10-1989 JP T2 62500122 16-01-1987 JP T2 62500403 19-02-1987 JP B2 2618622 11-06-1997 US A 4955712 11-09-1990 WO A1 8601308 27-02-1986 WO A1 8601309 27-02-1986 US A 5137343 11-08-1992 AT E 119688 15-03-1995 AU A1 74256/91 24-10-1991 CA AA 2040216 20-10-1991 DE A1 4012609 24-10-1991 DE CO 59104833 13-04-1995 EP A2 452802 23-10-1991 EP A3 452802 13-05-1992 EP B1 452802 08-03-1995 JP A2 5100191 23-04-1993