GB1237931A - - Google Patents

Info

Publication number
GB1237931A
GB1237931A GB1237931DA GB1237931A GB 1237931 A GB1237931 A GB 1237931A GB 1237931D A GB1237931D A GB 1237931DA GB 1237931 A GB1237931 A GB 1237931A
Authority
GB
United Kingdom
Prior art keywords
sept
electrode
bausch
lomb
heading
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
Application number
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
Application filed filed Critical
Publication of GB1237931A publication Critical patent/GB1237931A/en
Expired legal-status Critical Current

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
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive

Abstract

1,237,931. Coating with Fe. U. K. OPTICAL BAUSCH & LOMB Ltd. Sept. 5, 1968 [Sept. 5, 1967], No.42382/68. Heading C7F. [Also in Division G2] Metallic iron is deposited by vacuum deposition on to a surface of a component of a multifocal lens 10 by means of a heated electrode 23 with an iron wire 33 wound around it, said electrode being in a sealed evacuated bell jar 31.
GB1237931D 1967-09-05 1968-09-05 Expired GB1237931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66558767A 1967-09-05 1967-09-05

Publications (1)

Publication Number Publication Date
GB1237931A true GB1237931A (en) 1971-07-07

Family

ID=24670716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1237931D Expired GB1237931A (en) 1967-09-05 1968-09-05

Country Status (1)

Country Link
GB (1) GB1237931A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154337A (en) * 1984-02-17 1985-09-04 Zeiss Stiftung Multifocal spectacle lens having a large near-vision part
GB2155653A (en) * 1984-03-08 1985-09-25 Bristol Alexander C Aspheric spectacle lens blank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154337A (en) * 1984-02-17 1985-09-04 Zeiss Stiftung Multifocal spectacle lens having a large near-vision part
GB2155653A (en) * 1984-03-08 1985-09-25 Bristol Alexander C Aspheric spectacle lens blank

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees