GB292470A - Improvements relating to binocular field, opera or like glasses - Google Patents

Improvements relating to binocular field, opera or like glasses

Info

Publication number
GB292470A
GB292470A GB16994/28A GB1699428A GB292470A GB 292470 A GB292470 A GB 292470A GB 16994/28 A GB16994/28 A GB 16994/28A GB 1699428 A GB1699428 A GB 1699428A GB 292470 A GB292470 A GB 292470A
Authority
GB
United Kingdom
Prior art keywords
glasses
soc
covers
mounting
glass plate
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
GB16994/28A
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.)
ANCIENS ETS HUET ET CIE
Original Assignee
ANCIENS ETS HUET ET CIE
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 ANCIENS ETS HUET ET CIE filed Critical ANCIENS ETS HUET ET CIE
Publication of GB292470A publication Critical patent/GB292470A/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
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Telescopes (AREA)

Abstract

292,470. Soc. Anon. des Anciens Etablissements Huet et Cie Jumelles Flammarion, Soc. GÚnÚrale d'Optique. June 18, 1927, [Convention date]. Field-glasses.-To prevent the deposit of moisture on the interior and optical surfaces of binoculars the casing a is made of airtight material and is closed at both ends by covers c, d applied under pressure so that the lead rings f constitute an air-tight seal. The covers c, d are retained by screwed rings g, h. A seating b is provided for the prisms. The upper plate c is provided with a. mounting i for the eyepieces and a glass plate j is set therein hermetically. Similarly air-tightness is secured at the objective end by mounting the objective q in a ring held in a recess by a nut t and adjusted by screws u. The space v is filled by a paste such as wax. The eyepiece is mounted in a tube m encased in a focusing cylinder l and fitted with a cup n which may be removed to enable the outside surfaces of the eyepiece lenses and the glass plate j to be cleaned.
GB16994/28A 1927-06-18 1928-06-12 Improvements relating to binocular field, opera or like glasses Expired GB292470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR292470X 1927-06-18

Publications (1)

Publication Number Publication Date
GB292470A true GB292470A (en) 1929-10-14

Family

ID=8887842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16994/28A Expired GB292470A (en) 1927-06-18 1928-06-12 Improvements relating to binocular field, opera or like glasses

Country Status (1)

Country Link
GB (1) GB292470A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421805A (en) * 1943-05-14 1947-06-10 American Optical Corp Sealing means for optical instruments
US2454859A (en) * 1944-10-25 1948-11-30 Universal Camera Corp Water- and weatherproofing construction of casings for binoculars
US2573560A (en) * 1944-02-12 1951-10-30 Barr & Stroud Ltd Method of aligning and mounting binocular telescopes
US4560237A (en) * 1982-06-07 1985-12-24 Asahi Kogaku Kogyo Kabushiki Kaisha Lens driving apparatus in cameras
US6169628B1 (en) 1996-10-31 2001-01-02 Litton Systems, Inc. Protective window for optical sight

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421805A (en) * 1943-05-14 1947-06-10 American Optical Corp Sealing means for optical instruments
US2573560A (en) * 1944-02-12 1951-10-30 Barr & Stroud Ltd Method of aligning and mounting binocular telescopes
US2454859A (en) * 1944-10-25 1948-11-30 Universal Camera Corp Water- and weatherproofing construction of casings for binoculars
US4560237A (en) * 1982-06-07 1985-12-24 Asahi Kogaku Kogyo Kabushiki Kaisha Lens driving apparatus in cameras
US6169628B1 (en) 1996-10-31 2001-01-02 Litton Systems, Inc. Protective window for optical sight

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