FR1557212A - - Google Patents
Info
- Publication number
- FR1557212A FR1557212A FR1557212DA FR1557212A FR 1557212 A FR1557212 A FR 1557212A FR 1557212D A FR1557212D A FR 1557212DA FR 1557212 A FR1557212 A FR 1557212A
- Authority
- FR
- France
- Prior art keywords
- area
- areas
- light transmission
- light transmitting
- opaque
- 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.)
- Expired
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
- G02C7/041—Contact lenses for the eyes bifocal; multifocal
- G02C7/044—Annular configuration, e.g. pupil tuned
-
- 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
- G02C7/041—Contact lenses for the eyes bifocal; multifocal
- G02C7/042—Simultaneous type
-
- 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
- G02C7/041—Contact lenses for the eyes bifocal; multifocal
- G02C7/045—Sectorial configuration
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US63239867A | 1967-04-20 | 1967-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1557212A true FR1557212A (fr) | 1969-02-14 |
Family
ID=24535372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1557212D Expired FR1557212A (fr) | 1967-04-20 | 1968-02-22 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1772252A1 (fr) |
ES (1) | ES352876A1 (fr) |
FR (1) | FR1557212A (fr) |
GB (1) | GB1178211A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5980040A (en) * | 1997-06-30 | 1999-11-09 | Wesley Jessen Corporation | Pinhole lens and contact lens |
US6457826B1 (en) | 1998-08-06 | 2002-10-01 | John B. W. Lett | Multifocal aspheric lens |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989007281A1 (fr) * | 1988-02-01 | 1989-08-10 | Steve Newman | Lentille de contact a motif |
-
1968
- 1968-01-29 GB GB452868A patent/GB1178211A/en not_active Expired
- 1968-02-22 FR FR1557212D patent/FR1557212A/fr not_active Expired
- 1968-04-18 ES ES352876A patent/ES352876A1/es not_active Expired
- 1968-04-19 DE DE19681772252 patent/DE1772252A1/de active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5980040A (en) * | 1997-06-30 | 1999-11-09 | Wesley Jessen Corporation | Pinhole lens and contact lens |
US6457826B1 (en) | 1998-08-06 | 2002-10-01 | John B. W. Lett | Multifocal aspheric lens |
Also Published As
Publication number | Publication date |
---|---|
DE1772252A1 (de) | 1971-02-11 |
ES352876A1 (es) | 1969-10-01 |
GB1178211A (en) | 1970-01-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
ST | Notification of lapse |