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IT1044840B - REFINEMENT TO REFLECTIVE MATERIALS IN PARTICULAR FOR ROAD SIGNAGE AND RELATED MATERIALS PERFECTED WITH SECONDARY OPTICAL RETURN BY MEANS OF CUSIC EDGE PRISMS - Google Patents

REFINEMENT TO REFLECTIVE MATERIALS IN PARTICULAR FOR ROAD SIGNAGE AND RELATED MATERIALS PERFECTED WITH SECONDARY OPTICAL RETURN BY MEANS OF CUSIC EDGE PRISMS

Info

Publication number
IT1044840B
IT1044840B IT2584672A IT2584672A IT1044840B IT 1044840 B IT1044840 B IT 1044840B IT 2584672 A IT2584672 A IT 2584672A IT 2584672 A IT2584672 A IT 2584672A IT 1044840 B IT1044840 B IT 1044840B
Authority
IT
Italy
Prior art keywords
materials
cusic
perfected
refinement
secondary optical
Prior art date
Application number
IT2584672A
Other languages
Italian (it)
Original Assignee
Eigenmann Ludwig
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 Eigenmann Ludwig filed Critical Eigenmann Ludwig
Priority to IT2584672A priority Critical patent/IT1044840B/en
Priority to CA174,168A priority patent/CA988064A/en
Priority to GB2853173A priority patent/GB1426230A/en
Application granted granted Critical
Publication of IT1044840B publication Critical patent/IT1044840B/en

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)
IT2584672A 1972-06-17 1972-06-17 REFINEMENT TO REFLECTIVE MATERIALS IN PARTICULAR FOR ROAD SIGNAGE AND RELATED MATERIALS PERFECTED WITH SECONDARY OPTICAL RETURN BY MEANS OF CUSIC EDGE PRISMS IT1044840B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT2584672A IT1044840B (en) 1972-06-17 1972-06-17 REFINEMENT TO REFLECTIVE MATERIALS IN PARTICULAR FOR ROAD SIGNAGE AND RELATED MATERIALS PERFECTED WITH SECONDARY OPTICAL RETURN BY MEANS OF CUSIC EDGE PRISMS
CA174,168A CA988064A (en) 1972-06-17 1973-06-15 Retro-collimating aggregate having high optical efficiency
GB2853173A GB1426230A (en) 1972-06-17 1973-06-15 Retroreflecting assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2584672A IT1044840B (en) 1972-06-17 1972-06-17 REFINEMENT TO REFLECTIVE MATERIALS IN PARTICULAR FOR ROAD SIGNAGE AND RELATED MATERIALS PERFECTED WITH SECONDARY OPTICAL RETURN BY MEANS OF CUSIC EDGE PRISMS

Publications (1)

Publication Number Publication Date
IT1044840B true IT1044840B (en) 1980-04-21

Family

ID=11217906

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2584672A IT1044840B (en) 1972-06-17 1972-06-17 REFINEMENT TO REFLECTIVE MATERIALS IN PARTICULAR FOR ROAD SIGNAGE AND RELATED MATERIALS PERFECTED WITH SECONDARY OPTICAL RETURN BY MEANS OF CUSIC EDGE PRISMS

Country Status (3)

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

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 (en) 2018-01-22 2019-10-17 Imos Gubela Gmbh Retroreflector with a curved surface, forming tool for the production of the retroreflector and method for the production of the molding tool
EP4198494B1 (en) * 2021-12-20 2026-02-11 M & C TechGroup Germany GmbH Measuring device for absorption spectroscopy of a gas having a reflection element made of polycrystalline aluminium oxide and method for absorption spectroscopy using the same

Also Published As

Publication number Publication date
CA988064A (en) 1976-04-27
GB1426230A (en) 1976-02-25

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