GB488958A - Improvements in or relating to lenses comprising polarising material, for ophthalmic use - Google Patents
Improvements in or relating to lenses comprising polarising material, for ophthalmic useInfo
- Publication number
- GB488958A GB488958A GB338937A GB338937A GB488958A GB 488958 A GB488958 A GB 488958A GB 338937 A GB338937 A GB 338937A GB 338937 A GB338937 A GB 338937A GB 488958 A GB488958 A GB 488958A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polarizing
- lenses
- lens
- cover glass
- frame
- 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
- G02C7/12—Polarisers
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)
- Polarising Elements (AREA)
Abstract
488,958. Spectacles &c. FLEMING, R. J., and FLEMING, Ltd., J. & H. Feb. 4, 1937, No. 3389. [Class 97 (i)] In a lens comprising polarixing material for use in spectacles, the polarizing material, in the form of crystals in a matrix of plastic material is only applied to a portion of the lens of such size and position as is required to eliminate glare due to reflection from objects in the field of view. Fig. 6 shows a lens 24 having applied to a portion of one surface a layer 28 of polarizing material which is protected by a cover glass 29. Fig. 7 shows another form in which there is enclosed between the lens 24 and a cover glass 30 a complete layer of which the portion 28 is of polarizing material and the portion 31 is of safety but non-polarizing material. The portion 31, or the corresponding part of the cover glass, may be tinted. The lenses may be mounted in their frames in such a way that the positions of the polarizing portions can be varied. In Fig. 10, the lenses, having polarizing portions 35 and non-polarizing portions 36 are carried by mounts having teeth 38 meshing with worms 39 on a spindle 40 passing through the frame and having an operating-knob 42. Lenses as above described may be mounted in a separate frame which can be clipped on to an ordinary spectacle frame. Specifications 177,948, [Class 97 (i)], 412,179, and 433,455 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB338937A GB488958A (en) | 1937-02-04 | 1937-02-04 | Improvements in or relating to lenses comprising polarising material, for ophthalmic use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB338937A GB488958A (en) | 1937-02-04 | 1937-02-04 | Improvements in or relating to lenses comprising polarising material, for ophthalmic use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB488958A true GB488958A (en) | 1938-07-18 |
Family
ID=9757403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB338937A Expired GB488958A (en) | 1937-02-04 | 1937-02-04 | Improvements in or relating to lenses comprising polarising material, for ophthalmic use |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB488958A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3211047A (en) * | 1959-03-03 | 1965-10-12 | Heimberger Hermann | Polarization type anti-dazzle device for motor vehicles |
| US3254932A (en) * | 1962-12-26 | 1966-06-07 | Vernon O Blaney | Clip-on welding glasses |
| EP0375359A2 (en) * | 1988-12-20 | 1990-06-27 | Allergan, Inc | Corrective lens system |
| GB2228341A (en) * | 1989-02-16 | 1990-08-22 | John Henry Holdings | Adjustable light restricting polarising spectacles |
| EP3581976A1 (en) * | 2018-06-12 | 2019-12-18 | Essilor International | Method for making a gradient color polar lens with a non-polar near vision zone |
-
1937
- 1937-02-04 GB GB338937A patent/GB488958A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3211047A (en) * | 1959-03-03 | 1965-10-12 | Heimberger Hermann | Polarization type anti-dazzle device for motor vehicles |
| US3254932A (en) * | 1962-12-26 | 1966-06-07 | Vernon O Blaney | Clip-on welding glasses |
| EP0375359A2 (en) * | 1988-12-20 | 1990-06-27 | Allergan, Inc | Corrective lens system |
| EP0375359A3 (en) * | 1988-12-20 | 1992-01-08 | Allergan, Inc | Corrective lens system |
| GB2228341A (en) * | 1989-02-16 | 1990-08-22 | John Henry Holdings | Adjustable light restricting polarising spectacles |
| EP3581976A1 (en) * | 2018-06-12 | 2019-12-18 | Essilor International | Method for making a gradient color polar lens with a non-polar near vision zone |
| WO2019238637A1 (en) * | 2018-06-12 | 2019-12-19 | Essilor International | Method for making a gradient color polar lens with a non-polar near vision zone |
| CN112272786A (en) * | 2018-06-12 | 2021-01-26 | 依视路国际公司 | Method for manufacturing a progressive color polarized lens with unpolarized near field of view |
| US11994756B2 (en) | 2018-06-12 | 2024-05-28 | Essilor International | Method for making a gradient color polar lens with a non-polar near vision zone |
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