CA988064A - Retro-collimating aggregate having high optical efficiency - Google Patents

Retro-collimating aggregate having high optical efficiency

Info

Publication number
CA988064A
CA988064A CA174,168A CA174168A CA988064A CA 988064 A CA988064 A CA 988064A CA 174168 A CA174168 A CA 174168A CA 988064 A CA988064 A CA 988064A
Authority
CA
Canada
Prior art keywords
retro
collimating
aggregate
high optical
optical efficiency
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
CA174,168A
Other languages
English (en)
Other versions
CA174168S (en
Inventor
Ludwig Eigenmann
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
Application granted granted Critical
Publication of CA988064A publication Critical patent/CA988064A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
CA174,168A 1972-06-17 1973-06-15 Retro-collimating aggregate having high optical efficiency Expired CA988064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2584672A IT1044840B (it) 1972-06-17 1972-06-17 Perfezionamento ai materiali catarifrangenti in particolare per segnaletica stradale e relativi materiali perfezionati a restituzione ottica secondaria mediante prismi a spigolo cusico

Publications (1)

Publication Number Publication Date
CA988064A true CA988064A (en) 1976-04-27

Family

ID=11217906

Family Applications (1)

Application Number Title Priority Date Filing Date
CA174,168A Expired CA988064A (en) 1972-06-17 1973-06-15 Retro-collimating aggregate having high optical efficiency

Country Status (3)

Country Link
CA (1) CA988064A (it)
GB (1) GB1426230A (it)
IT (1) IT1044840B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1279783C (en) * 1985-11-21 1991-02-05 Minnesota Mining And Manufacturing Company Totally internally reflecting thin, flexible film
USRE40227E1 (en) 1985-11-21 2008-04-08 3M Innovative Properties Company Totally internally reflecting thin, flexible film
DE102018101289B4 (de) 2018-01-22 2019-10-17 Imos Gubela Gmbh Retroreflektor mit einer gekrümmten Oberfläche, Abformwerkzeug zur Herstellung des Retroreflektors und Verfahren zur Herstellung des Abformwerkzeugs
EP4198494B1 (de) * 2021-12-20 2026-02-11 M & C TechGroup Germany GmbH Messgerät zur absorptions-spektroskopischen gasmessung mit einem reflexionselement aus polykristallinem aluminiumoxid und verfahren zur absorptions-spektroskopischen gasmessung damit

Also Published As

Publication number Publication date
GB1426230A (en) 1976-02-25
IT1044840B (it) 1980-04-21

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