DE3209911C2 - Vorrichtung für Schutzhelme zur Ermöglichung einer Sicht nach hinten - Google Patents

Vorrichtung für Schutzhelme zur Ermöglichung einer Sicht nach hinten

Info

Publication number
DE3209911C2
DE3209911C2 DE3209911A DE3209911A DE3209911C2 DE 3209911 C2 DE3209911 C2 DE 3209911C2 DE 3209911 A DE3209911 A DE 3209911A DE 3209911 A DE3209911 A DE 3209911A DE 3209911 C2 DE3209911 C2 DE 3209911C2
Authority
DE
Germany
Prior art keywords
optical system
mirror
enable
lens
edge
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
DE3209911A
Other languages
German (de)
English (en)
Other versions
DE3209911A1 (de
Inventor
Pier Luigi Como Nava
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE3209911A1 publication Critical patent/DE3209911A1/de
Application granted granted Critical
Publication of DE3209911C2 publication Critical patent/DE3209911C2/de
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
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/0406—Accessories for helmets
    • A42B3/042—Optical devices
    • A42B3/0426—Rear view devices or the like

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Lenses (AREA)
DE3209911A 1981-04-17 1982-03-18 Vorrichtung für Schutzhelme zur Ermöglichung einer Sicht nach hinten Expired DE3209911C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21290/81A IT1135781B (it) 1981-04-17 1981-04-17 Dispositivo retrovisore applicabile a caschi e simili

Publications (2)

Publication Number Publication Date
DE3209911A1 DE3209911A1 (de) 1982-11-18
DE3209911C2 true DE3209911C2 (de) 1983-12-22

Family

ID=11179614

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3209911A Expired DE3209911C2 (de) 1981-04-17 1982-03-18 Vorrichtung für Schutzhelme zur Ermöglichung einer Sicht nach hinten

Country Status (5)

Country Link
JP (2) JPS57197510A (enExample)
DE (1) DE3209911C2 (enExample)
FR (1) FR2504280B1 (enExample)
GB (1) GB2097147B (enExample)
IT (1) IT1135781B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976521U (ja) * 1982-11-17 1984-05-24 中　正順 バツクミラ−付額帯
JPS59172736U (ja) * 1983-05-06 1984-11-19 服部　孝男 バツクミラ−付ヘルメツト
GB2275412B (en) * 1993-02-19 1996-09-11 British Gas Plc Diver communication equipment
US5771497A (en) * 1995-06-09 1998-06-30 Hoodco 446 Limited Article of headwear
GB2347611B (en) 1999-03-11 2002-04-17 Michael Robin Whittingdale Rear view apparatus
EP1247467B1 (en) * 2001-04-06 2004-10-13 CEO Centro di Eccellenza Optronica Protective helmet with rearview optical system
GB2432102B (en) * 2005-11-14 2010-09-08 Reevu Ltd Mirror position adjuster
JP5906446B2 (ja) * 2010-11-15 2016-04-20 株式会社マルセイ 鏡製品、つば（又はひさし）、ヘルメット、帽子又はバイザー
CN104000339A (zh) * 2014-05-29 2014-08-27 魏强 通讯帽子

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1082371A (en) * 1965-02-12 1967-09-06 Lucas Industries Ltd Road vehicles having rear view optical systems
GB1217223A (en) * 1967-05-23 1970-12-31 Cesare Morais Rear-view optical system
GB1264343A (enExample) * 1968-08-12 1972-02-23
FR2205013A5 (enExample) * 1972-09-22 1974-05-24 Poitevin De Fontguyon M
JPS4985736A (enExample) * 1972-12-20 1974-08-16
US3978526A (en) * 1975-04-09 1976-09-07 William Leroy Mitchell Periscope rear view helmet and helmet adapter
FR2318433A2 (fr) * 1975-07-17 1977-02-11 Sfim Casque a vision arriere
GB1534545A (en) * 1976-05-19 1978-12-06 Anstey N Rear-view mirror system
JPS5427454A (en) * 1977-08-03 1979-03-01 Mitsubishi Chem Ind Device for observing rotating body
FR2430206A1 (fr) * 1978-07-06 1980-02-01 Cuvillier Roger Casque de protection a retroviseur incorpore
GB2057159B (en) * 1979-08-08 1983-05-11 Ellis L Rear-view optical system

Also Published As

Publication number Publication date
IT1135781B (it) 1986-08-27
DE3209911A1 (de) 1982-11-18
IT8121290A0 (it) 1981-04-17
JPS62173717U (enExample) 1987-11-05
GB2097147B (en) 1984-08-22
GB2097147A (en) 1982-10-27
FR2504280B1 (fr) 1986-02-28
JPS57197510A (en) 1982-12-03
FR2504280A1 (fr) 1982-10-22

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee