GB2203858B - Optical apparatus - Google Patents

Optical apparatus

Info

Publication number
GB2203858B
GB2203858B GB8809109A GB8809109A GB2203858B GB 2203858 B GB2203858 B GB 2203858B GB 8809109 A GB8809109 A GB 8809109A GB 8809109 A GB8809109 A GB 8809109A GB 2203858 B GB2203858 B GB 2203858B
Authority
GB
United Kingdom
Prior art keywords
optical apparatus
optical
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 - Lifetime
Application number
GB8809109A
Other versions
GB2203858A (en
GB8809109D0 (en
Inventor
Ewan Mackinnon Waddell
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics Ltd
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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Publication of GB8809109D0 publication Critical patent/GB8809109D0/en
Publication of GB2203858A publication Critical patent/GB2203858A/en
Application granted granted Critical
Publication of GB2203858B publication Critical patent/GB2203858B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • A61F9/022—Use of special optical filters, e.g. multiple layers, filters for protection against laser light or light from nuclear explosions, screens with different filter properties on different parts of the screen; Rotating slit-discs
    • A61F9/023—Use of special optical filters, e.g. multiple layers, filters for protection against laser light or light from nuclear explosions, screens with different filter properties on different parts of the screen; Rotating slit-discs with variable transmission, e.g. photochromic
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • 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
GB8809109A 1987-04-25 1988-04-18 Optical apparatus Expired - Lifetime GB2203858B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8709836A GB8709836D0 (en) 1987-04-25 1987-04-25 Optical apparatus

Publications (3)

Publication Number Publication Date
GB8809109D0 GB8809109D0 (en) 1988-05-18
GB2203858A GB2203858A (en) 1988-10-26
GB2203858B true GB2203858B (en) 1990-12-19

Family

ID=10616360

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8709836A Pending GB8709836D0 (en) 1987-04-25 1987-04-25 Optical apparatus
GB8809109A Expired - Lifetime GB2203858B (en) 1987-04-25 1988-04-18 Optical apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8709836A Pending GB8709836D0 (en) 1987-04-25 1987-04-25 Optical apparatus

Country Status (1)

Country Link
GB (2) GB8709836D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218386A (en) * 1991-06-19 1993-06-08 Levien Raphael L Eyeglasses with spectral color shift

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB568272A (en) * 1943-07-05 1945-03-27 Ernest France Improvements in observation windows, aids to vision, and the like
GB1141252A (en) * 1965-10-01 1969-01-29 Kurt Esterson Protective goggles
US4247177A (en) * 1979-01-15 1981-01-27 Marks Alvin M 3D Multichrome filters for spectacle frames
GB2185336A (en) * 1985-12-06 1987-07-15 David Gifford Burder Methods and apparatus for producing anaglyphs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB568272A (en) * 1943-07-05 1945-03-27 Ernest France Improvements in observation windows, aids to vision, and the like
GB1141252A (en) * 1965-10-01 1969-01-29 Kurt Esterson Protective goggles
US4247177A (en) * 1979-01-15 1981-01-27 Marks Alvin M 3D Multichrome filters for spectacle frames
GB2185336A (en) * 1985-12-06 1987-07-15 David Gifford Burder Methods and apparatus for producing anaglyphs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A1 85/04494 *

Also Published As

Publication number Publication date
GB2203858A (en) 1988-10-26
GB8709836D0 (en) 1987-05-28
GB8809109D0 (en) 1988-05-18

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20080417