GB187271A - Improvements in or relating to periscopes - Google Patents

Improvements in or relating to periscopes

Info

Publication number
GB187271A
GB187271A GB1608821A GB1608821A GB187271A GB 187271 A GB187271 A GB 187271A GB 1608821 A GB1608821 A GB 1608821A GB 1608821 A GB1608821 A GB 1608821A GB 187271 A GB187271 A GB 187271A
Authority
GB
United Kingdom
Prior art keywords
periscopes
relating
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
GB1608821A
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.)
Vickers Ltd
Original Assignee
Vickers 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 Vickers Ltd filed Critical Vickers Ltd
Priority to GB1608821A priority Critical patent/GB187271A/en
Publication of GB187271A publication Critical patent/GB187271A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/08—Periscopes
GB1608821A 1921-06-10 1921-06-10 Improvements in or relating to periscopes Expired GB187271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1608821A GB187271A (en) 1921-06-10 1921-06-10 Improvements in or relating to periscopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1608821A GB187271A (en) 1921-06-10 1921-06-10 Improvements in or relating to periscopes

Publications (1)

Publication Number Publication Date
GB187271A true GB187271A (en) 1922-10-10

Family

ID=10070957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1608821A Expired GB187271A (en) 1921-06-10 1921-06-10 Improvements in or relating to periscopes

Country Status (1)

Country Link
GB (1) GB187271A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612078A (en) * 1950-01-16 1952-09-30 Lisio Salvatore De Light transmitting structure which may be made transparent or translucent at will
US2783682A (en) * 1950-08-25 1957-03-05 Oscar J Swenson Translucent-transparent window
US2997922A (en) * 1958-04-24 1961-08-29 Edward K Kaprelian Light valve
US3081664A (en) * 1960-01-20 1963-03-19 Voigtlaender Ag Block type photographic viewfinder with parallax compensation
US3213752A (en) * 1961-03-14 1965-10-26 Isomet Corp Optical valve responsive to intense light flash
US3738734A (en) * 1972-02-23 1973-06-12 S Tait Optical fluid lens construction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612078A (en) * 1950-01-16 1952-09-30 Lisio Salvatore De Light transmitting structure which may be made transparent or translucent at will
US2783682A (en) * 1950-08-25 1957-03-05 Oscar J Swenson Translucent-transparent window
US2997922A (en) * 1958-04-24 1961-08-29 Edward K Kaprelian Light valve
US3081664A (en) * 1960-01-20 1963-03-19 Voigtlaender Ag Block type photographic viewfinder with parallax compensation
US3213752A (en) * 1961-03-14 1965-10-26 Isomet Corp Optical valve responsive to intense light flash
US3738734A (en) * 1972-02-23 1973-06-12 S Tait Optical fluid lens construction

Similar Documents

Publication Publication Date Title
GB187271A (en) Improvements in or relating to periscopes
GB173849A (en) Improvements in or relating to stereoscopic devices
GB178344A (en) Improvements in or relating to stereoscopic kinematograph cameras
GB193544A (en) Improvements in or relating to portable mirrors
GB182987A (en) Improvements in or relating to spectacles
GB165541A (en) Improvements in or relating to stereoscopes
GB188111A (en) Improvements in or relating to kinematograph screens
GB178415A (en) Improvements in or relating to binocular field glasses
GB163977A (en) Improvements in or relating to microscopes
GB180210A (en) Improvements in or relating to spectacles
GB182211A (en) Improvements in or relating to gramophones
AU332021A (en) Improvements in or relating to ball-cocks
GB157004A (en) Improvements in or relating to springs
GB177486A (en) Improvements in or relating to tubular masts or the like
GB178724A (en) Improvements in and relating to telescopes
AU419621A (en) Improvements in or relating to furnaces
GB177916A (en) Improvements in or relating to kinematograph projectors
AU1769220B (en) Improvements in or relating to aero-motors
GB189282A (en) Improvements in or relating to kinematograph apparatus
GB184908A (en) Improvements in or relating to lens mountings
AU1609524A (en) Improvements in or relating to trunks
GB183327A (en) Improvements in or relating to gramophones
GB189729A (en) Improvements in or relating to gramophones
GB175180A (en) Improvements in or relating to gramophones
GB189508A (en) Improvements in or relating to gramophones