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NL181054B - ENLARGING LENS, WHICH MAKES BOTH EYES AND IS FASTER THAN F / 1.0, IN PARTICULAR OCULAR FOR NIGHT VISION DEVICES. - Google Patents

ENLARGING LENS, WHICH MAKES BOTH EYES AND IS FASTER THAN F / 1.0, IN PARTICULAR OCULAR FOR NIGHT VISION DEVICES.

Info

Publication number
NL181054B
NL181054B NL7301679A NL7301679A NL181054B NL 181054 B NL181054 B NL 181054B NL 7301679 A NL7301679 A NL 7301679A NL 7301679 A NL7301679 A NL 7301679A NL 181054 B NL181054 B NL 181054B
Authority
NL
Netherlands
Prior art keywords
eyes
faster
night vision
vision devices
enlarging lens
Prior art date
Application number
NL7301679A
Other languages
Dutch (nl)
Other versions
NL7301679A (en
NL181054C (en
Original Assignee
Pilkington Perkin Elmer 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 Perkin Elmer Ltd filed Critical Pilkington Perkin Elmer Ltd
Publication of NL7301679A publication Critical patent/NL7301679A/xx
Publication of NL181054B publication Critical patent/NL181054B/en
Application granted granted Critical
Publication of NL181054C publication Critical patent/NL181054C/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
NL7301679A 1972-02-17 1973-02-07 ENLARGING LENS, WHICH MAKES BOTH EYES AND IS FASTER THAN F / 1.0, IN PARTICULAR OCULAR FOR NIGHT VISION DEVICES. NL181054C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB751072A GB1389564A (en) 1972-02-17 1972-02-17 Lenses

Publications (3)

Publication Number Publication Date
NL7301679A NL7301679A (en) 1973-08-21
NL181054B true NL181054B (en) 1987-01-02
NL181054C NL181054C (en) 1987-06-01

Family

ID=9834512

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7301679A NL181054C (en) 1972-02-17 1973-02-07 ENLARGING LENS, WHICH MAKES BOTH EYES AND IS FASTER THAN F / 1.0, IN PARTICULAR OCULAR FOR NIGHT VISION DEVICES.

Country Status (5)

Country Link
JP (1) JPS4897550A (en)
DE (1) DE2307598A1 (en)
FR (1) FR2172415B1 (en)
GB (1) GB1389564A (en)
NL (1) NL181054C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322135A (en) 1978-11-29 1982-03-30 Pilkington P. E. Limited Optical apparatus
US4392710A (en) 1979-11-22 1983-07-12 Pilkington P. E. Limited Optical apparatus
FR2535860B1 (en) * 1982-11-10 1986-02-28 Trt Telecom Radio Electr BIOCULAR MAGNIFIER

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1478704A (en) * 1921-08-13 1923-12-25 Zeiss Carl Fa Ocular

Also Published As

Publication number Publication date
DE2307598A1 (en) 1973-08-23
GB1389564A (en) 1975-04-03
FR2172415A1 (en) 1973-09-28
JPS4897550A (en) 1973-12-12
NL7301679A (en) 1973-08-21
FR2172415B1 (en) 1977-07-22
NL181054C (en) 1987-06-01

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Lapsed because of reaching the maxim lifetime of a patent