GB699736A - Improvements in and relating to the manner of manufacture of contact lenses - Google Patents
Improvements in and relating to the manner of manufacture of contact lensesInfo
- Publication number
- GB699736A GB699736A GB6420/50A GB642050A GB699736A GB 699736 A GB699736 A GB 699736A GB 6420/50 A GB6420/50 A GB 6420/50A GB 642050 A GB642050 A GB 642050A GB 699736 A GB699736 A GB 699736A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact lenses
- relating
- manufacture
- manner
- simulacrum
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00317—Production of lenses with markings or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
- B29D11/00048—Production of contact lenses composed of parts with dissimilar composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0073—Optical laminates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
699,736. Contact lenses. MUELLER-WELT GES. March 14, 1950 [March 14, 1949], No. 6420/50. Class 97 (i). [Also in Group V] A contact lens of transparent thermoplastic material has embedded therein a simulacrum 2 of a natural iris. The simulacrum may be made of textile fabric, paper or metal, and may be coloured by lithographic printing. The scleral part of the lens may be coloured by threads of sheep's wool embedded therein.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE699736X | 1949-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB699736A true GB699736A (en) | 1953-11-18 |
Family
ID=6608508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6420/50A Expired GB699736A (en) | 1949-03-14 | 1950-03-14 | Improvements in and relating to the manner of manufacture of contact lenses |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB699736A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3431327A (en) * | 1964-08-31 | 1969-03-04 | George F Tsuetaki | Method of making a bifocal contact lens with an embedded metal weight |
US3507566A (en) * | 1968-04-29 | 1970-04-21 | Arthur A Knapp | Contact lens and spectacle lens structure |
US3536386A (en) * | 1967-10-27 | 1970-10-27 | Morris Spivack | Contact lens with simulated iris |
US4071293A (en) * | 1974-10-18 | 1978-01-31 | Avery Theodore P | Contact lens and method of making same |
US4873029A (en) * | 1987-10-30 | 1989-10-10 | Blum Ronald D | Method for manufacturing lenses |
US5018849A (en) * | 1988-11-16 | 1991-05-28 | Ciba-Geigy Corporation | Colored contact lens and methods of making the same |
-
1950
- 1950-03-14 GB GB6420/50A patent/GB699736A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3431327A (en) * | 1964-08-31 | 1969-03-04 | George F Tsuetaki | Method of making a bifocal contact lens with an embedded metal weight |
US3536386A (en) * | 1967-10-27 | 1970-10-27 | Morris Spivack | Contact lens with simulated iris |
US3507566A (en) * | 1968-04-29 | 1970-04-21 | Arthur A Knapp | Contact lens and spectacle lens structure |
US4071293A (en) * | 1974-10-18 | 1978-01-31 | Avery Theodore P | Contact lens and method of making same |
US4873029A (en) * | 1987-10-30 | 1989-10-10 | Blum Ronald D | Method for manufacturing lenses |
US5018849A (en) * | 1988-11-16 | 1991-05-28 | Ciba-Geigy Corporation | Colored contact lens and methods of making the same |
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