BE816830A - Element spherique catadioptrique ou recollimateur pour signalisation routiere et utilisations equivalentes - Google Patents

Element spherique catadioptrique ou recollimateur pour signalisation routiere et utilisations equivalentes

Info

Publication number
BE816830A
BE816830A BE145858A BE145858A BE816830A BE 816830 A BE816830 A BE 816830A BE 145858 A BE145858 A BE 145858A BE 145858 A BE145858 A BE 145858A BE 816830 A BE816830 A BE 816830A
Authority
BE
Belgium
Prior art keywords
collimator
spherical element
reflective spherical
road signaling
equivalent uses
Prior art date
Application number
BE145858A
Other languages
English (en)
French (fr)
Inventor
L Eigenmann
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
Publication of BE816830A publication Critical patent/BE816830A/xx

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface
    • G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Surface Treatment Of Glass (AREA)
  • Joining Of Glass To Other Materials (AREA)
BE145858A 1973-06-25 1974-06-25 Element spherique catadioptrique ou recollimateur pour signalisation routiere et utilisations equivalentes BE816830A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2578473A IT989428B (it) 1973-06-25 1973-06-25 Perfezionamento agli elementi sferici catarifrangenti o retro collimanti per segnaletica stradale ed equivalenti impieghi e relativi elementi sferici retrocollimanti perfezionati

Publications (1)

Publication Number Publication Date
BE816830A true BE816830A (fr) 1974-10-16

Family

ID=11217725

Family Applications (1)

Application Number Title Priority Date Filing Date
BE145858A BE816830A (fr) 1973-06-25 1974-06-25 Element spherique catadioptrique ou recollimateur pour signalisation routiere et utilisations equivalentes

Country Status (10)

Country Link
JP (1) JPS5050891A (it)
BE (1) BE816830A (it)
CA (1) CA1012807A (it)
CH (1) CH587495A5 (it)
DE (1) DE2430797A1 (it)
DK (1) DK340374A (it)
FR (1) FR2234574B1 (it)
GB (1) GB1477175A (it)
IT (1) IT989428B (it)
NL (1) NL7408573A (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3931022A1 (de) * 1989-09-16 1991-03-28 Hommelwerke Gmbh Optischer retroreflektor
NO301797B1 (no) * 1995-12-22 1997-12-08 Norsk Hydro As Retroreflekterende platemateriale og fremgangsmåte for fremstilling av slikt materiale
EP1660919B1 (en) * 2003-08-29 2007-09-12 BAE Systems PLC Retroreflective device comprising gradient index lenses
US7224533B2 (en) 2004-11-08 2007-05-29 Hewlett-Packard Development Company, L.P. Optically retro-reflecting sphere
WO2009082644A1 (en) 2007-12-21 2009-07-02 3M Innovative Properties Company Retroreflective articles and retroreflective elements comprising a spherical core and two concentric optical interference layers
CN101946043B (zh) * 2007-12-21 2013-08-07 3M创新有限公司 回射道路标记
TWI562891B (en) 2013-09-27 2016-12-21 Rohm & Haas Optical effect coating
US10852201B2 (en) 2015-12-09 2020-12-01 Bae Systems Plc Remote sensing
WO2017098223A1 (en) 2015-12-09 2017-06-15 Bae Systems Plc Improvements in and relating to remote sensing
GB201521693D0 (en) * 2015-12-09 2016-01-20 Bae Systems Plc Improvements in and relating to remote sensing

Also Published As

Publication number Publication date
NL7408573A (it) 1974-12-30
IT989428B (it) 1975-05-20
DE2430797A1 (de) 1975-01-16
FR2234574A1 (it) 1975-01-17
CA1012807A (en) 1977-06-28
JPS5050891A (it) 1975-05-07
CH587495A5 (it) 1977-05-13
FR2234574B1 (it) 1978-11-24
GB1477175A (en) 1977-06-22
DK340374A (it) 1975-02-10

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