GB1301551A - - Google Patents

Info

Publication number
GB1301551A
GB1301551A GB1301551DA GB1301551A GB 1301551 A GB1301551 A GB 1301551A GB 1301551D A GB1301551D A GB 1301551DA GB 1301551 A GB1301551 A GB 1301551A
Authority
GB
United Kingdom
Prior art keywords
aspherical
mullard
heading
march
june
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
Other languages
English (en)
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 GB1301551A publication Critical patent/GB1301551A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
GB1301551D 1970-03-06 1970-03-06 Expired GB1301551A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1092070 1970-03-06

Publications (1)

Publication Number Publication Date
GB1301551A true GB1301551A (ja) 1972-12-29

Family

ID=9976731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1301551D Expired GB1301551A (ja) 1970-03-06 1970-03-06

Country Status (1)

Country Link
GB (1) GB1301551A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011331A1 (en) * 1978-11-06 1980-05-28 Philips Electronics Uk Limited Method of making a master replicating tool
US4319945A (en) 1978-12-28 1982-03-16 U.S. Philips Corporation Method of producing aspherical optical elements
WO1985000060A1 (en) * 1983-06-15 1985-01-03 Neal Keith Jones Thin plastic corrector lenses for optical systems
EP0156430A1 (en) * 1984-03-19 1985-10-02 Koninklijke Philips Electronics N.V. Laminated optical component
US4623496A (en) * 1984-01-18 1986-11-18 U.S. Philips Corporation Method of manufacturing an optical element having an aspheric surface
CN115365061A (zh) * 2022-09-09 2022-11-22 中航沈飞民用飞机有限责任公司 一种自动涂胶胶型外形控制符形块

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011331A1 (en) * 1978-11-06 1980-05-28 Philips Electronics Uk Limited Method of making a master replicating tool
US4319945A (en) 1978-12-28 1982-03-16 U.S. Philips Corporation Method of producing aspherical optical elements
WO1985000060A1 (en) * 1983-06-15 1985-01-03 Neal Keith Jones Thin plastic corrector lenses for optical systems
US4650275A (en) * 1983-06-15 1987-03-17 Jones Neal K Thin plastic corrector lenses for optical systems
US4623496A (en) * 1984-01-18 1986-11-18 U.S. Philips Corporation Method of manufacturing an optical element having an aspheric surface
US4738516A (en) * 1984-01-18 1988-04-19 U.S. Philips Corp. Optical element having an aspheric surface
EP0156430A1 (en) * 1984-03-19 1985-10-02 Koninklijke Philips Electronics N.V. Laminated optical component
CN115365061A (zh) * 2022-09-09 2022-11-22 中航沈飞民用飞机有限责任公司 一种自动涂胶胶型外形控制符形块

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Legal Events

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