GB2126747B - Biocular magnifying lens comprising positive fresnel lens - Google Patents

Biocular magnifying lens comprising positive fresnel lens

Info

Publication number
GB2126747B
GB2126747B GB08322543A GB8322543A GB2126747B GB 2126747 B GB2126747 B GB 2126747B GB 08322543 A GB08322543 A GB 08322543A GB 8322543 A GB8322543 A GB 8322543A GB 2126747 B GB2126747 B GB 2126747B
Authority
GB
United Kingdom
Prior art keywords
lens
positive fresnel
biocular
biocular magnifying
fresnel lens
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
GB08322543A
Other versions
GB8322543D0 (en
GB2126747A (en
Inventor
Philip John Rogers
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.)
Qioptiq Ltd
Original Assignee
Pilkington PE 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 Pilkington PE Ltd filed Critical Pilkington PE Ltd
Priority to GB08322543A priority Critical patent/GB2126747B/en
Publication of GB8322543D0 publication Critical patent/GB8322543D0/en
Publication of GB2126747A publication Critical patent/GB2126747A/en
Application granted granted Critical
Publication of GB2126747B publication Critical patent/GB2126747B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/002—Magnifying glasses
    • G02B25/004—Magnifying glasses having binocular arrangement
    • 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
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
GB08322543A 1982-09-03 1983-08-22 Biocular magnifying lens comprising positive fresnel lens Expired GB2126747B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08322543A GB2126747B (en) 1982-09-03 1983-08-22 Biocular magnifying lens comprising positive fresnel lens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8225113 1982-09-03
GB08322543A GB2126747B (en) 1982-09-03 1983-08-22 Biocular magnifying lens comprising positive fresnel lens

Publications (3)

Publication Number Publication Date
GB8322543D0 GB8322543D0 (en) 1983-09-28
GB2126747A GB2126747A (en) 1984-03-28
GB2126747B true GB2126747B (en) 1986-02-19

Family

ID=26283734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08322543A Expired GB2126747B (en) 1982-09-03 1983-08-22 Biocular magnifying lens comprising positive fresnel lens

Country Status (1)

Country Link
GB (1) GB2126747B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228962C2 (en) * 1991-08-30 1996-08-14 Kansei Kk Optical system for enlarging a display field
US5151823A (en) * 1991-09-23 1992-09-29 Hughes Aircraft Company Biocular eyepiece optical system employing refractive and diffractive optical elements
US10459215B2 (en) * 2016-12-27 2019-10-29 Kopin Corporation Video display device
CN110221446A (en) * 2019-04-17 2019-09-10 深港产学研基地（北京大学香港科技大学深圳研修院） Mix Fresnel Lenses interferometric filter optical element

Also Published As

Publication number Publication date
GB8322543D0 (en) 1983-09-28
GB2126747A (en) 1984-03-28

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Legal Events

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

Effective date: 19930822