FR2011644A1 - - Google Patents

Info

Publication number
FR2011644A1
FR2011644A1 FR6920941A FR6920941A FR2011644A1 FR 2011644 A1 FR2011644 A1 FR 2011644A1 FR 6920941 A FR6920941 A FR 6920941A FR 6920941 A FR6920941 A FR 6920941A FR 2011644 A1 FR2011644 A1 FR 2011644A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6920941A
Other languages
French (fr)
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of FR2011644A1 publication Critical patent/FR2011644A1/fr
Withdrawn legal-status Critical Current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
    • G02B5/126—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)
  • Road Signs Or Road Markings (AREA)
FR6920941A 1968-06-25 1969-06-23 Withdrawn FR2011644A1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4436368 1968-06-25

Publications (1)

Publication Number Publication Date
FR2011644A1 true FR2011644A1 (enrdf_load_stackoverflow) 1970-03-06

Family

ID=12689411

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6920941A Withdrawn FR2011644A1 (enrdf_load_stackoverflow) 1968-06-25 1969-06-23

Country Status (3)

Country Link
DE (1) DE1932259A1 (enrdf_load_stackoverflow)
FR (1) FR2011644A1 (enrdf_load_stackoverflow)
GB (1) GB1229109A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011955C2 (de) * 1980-03-27 1982-05-13 D. Swarovski & Co., 6112 Wattens, Tirol Retroreflektorplatte und Verfahren zu deren Herstellung
DE2947719C2 (de) * 1979-11-27 1981-08-27 D. Swarovski & Co., 6112 Wattens, Tirol Retroreflektorplatte
US4340301A (en) * 1979-11-27 1982-07-20 D. Swarovski & Co. Retroreflector plate and a method for its manufacture
DE3931022A1 (de) * 1989-09-16 1991-03-28 Hommelwerke Gmbh Optischer retroreflektor

Also Published As

Publication number Publication date
DE1932259A1 (de) 1970-01-22
GB1229109A (enrdf_load_stackoverflow) 1971-04-21

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Legal Events

Date Code Title Description
ST Notification of lapse