FR1059347A - Optical safety device for vehicles - Google Patents

Optical safety device for vehicles

Info

Publication number
FR1059347A
FR1059347A FR1059347DA FR1059347A FR 1059347 A FR1059347 A FR 1059347A FR 1059347D A FR1059347D A FR 1059347DA FR 1059347 A FR1059347 A FR 1059347A
Authority
FR
France
Prior art keywords
vehicles
safety device
optical safety
optical
safety
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
Other languages
French (fr)
Inventor
Paul Soulary
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 filed Critical
Application granted granted Critical
Publication of FR1059347A publication Critical patent/FR1059347A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1059347D 1952-06-30 1952-06-30 Optical safety device for vehicles Expired FR1059347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1059347T 1952-06-30

Publications (1)

Publication Number Publication Date
FR1059347A true FR1059347A (en) 1954-03-24

Family

ID=9599024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1059347D Expired FR1059347A (en) 1952-06-30 1952-06-30 Optical safety device for vehicles

Country Status (1)

Country Link
FR (1) FR1059347A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112281699A (en) * 2020-11-18 2021-01-29 无锡市政设计研究院有限公司 Device for enhancing top view of steep slope and installation method of position of device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112281699A (en) * 2020-11-18 2021-01-29 无锡市政设计研究院有限公司 Device for enhancing top view of steep slope and installation method of position of device

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