GB1273290A - Method of and device for improving colour discrimination - Google Patents

Method of and device for improving colour discrimination

Info

Publication number
GB1273290A
GB1273290A GB5694170A GB5694170A GB1273290A GB 1273290 A GB1273290 A GB 1273290A GB 5694170 A GB5694170 A GB 5694170A GB 5694170 A GB5694170 A GB 5694170A GB 1273290 A GB1273290 A GB 1273290A
Authority
GB
United Kingdom
Prior art keywords
improving colour
colour discrimination
discrimination
improving
zeltzer
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
GB5694170A
Inventor
Harry Isaiah Zeltzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to GB5694170A priority Critical patent/GB1273290A/en
Publication of GB1273290A publication Critical patent/GB1273290A/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
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00—Constructions of non-optical parts
    • G02C5/001—Constructions of non-optical parts specially adapted for particular purposes, not otherwise provided for or not fully classifiable according to technical characteristics, e.g. therapeutic glasses
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

1,273,290. Corneal contact lens. H. I. ZELTZER. Dec. 1, 1970, No. 56941/70. Heading G2J. A single lens, effectively forming a red pass filter is provided in one eye and has the effect of improving colour discrimination.
GB5694170A 1970-12-01 1970-12-01 Method of and device for improving colour discrimination Expired GB1273290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5694170A GB1273290A (en) 1970-12-01 1970-12-01 Method of and device for improving colour discrimination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5694170A GB1273290A (en) 1970-12-01 1970-12-01 Method of and device for improving colour discrimination

Publications (1)

Publication Number Publication Date
GB1273290A true GB1273290A (en) 1972-05-03

Family

ID=10477942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5694170A Expired GB1273290A (en) 1970-12-01 1970-12-01 Method of and device for improving colour discrimination

Country Status (1)

Country Link
GB (1) GB1273290A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319281A2 (en) * 1987-11-30 1989-06-07 Animalens Incorporated Contact lenses for animals
GB2266786A (en) * 1992-05-07 1993-11-10 Ian Jordan Pair of lenses, one clear, one coloured, for treating dyslexia

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319281A2 (en) * 1987-11-30 1989-06-07 Animalens Incorporated Contact lenses for animals
EP0319281A3 (en) * 1987-11-30 1989-11-02 Animalens Incorporated Contact lenses for animals
US4955711A (en) * 1987-11-30 1990-09-11 Animalens, Inc. Contact lenses for animals
GB2266786A (en) * 1992-05-07 1993-11-10 Ian Jordan Pair of lenses, one clear, one coloured, for treating dyslexia
GB2266786B (en) * 1992-05-07 1996-05-08 Ian Jordan A pair of spectacles with an optical system for treating dyslexia

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee