JPS5710102A - Production of retroreflective sheet of wide angle characteristic - Google Patents

Production of retroreflective sheet of wide angle characteristic

Info

Publication number
JPS5710102A
JPS5710102A JP8438480A JP8438480A JPS5710102A JP S5710102 A JPS5710102 A JP S5710102A JP 8438480 A JP8438480 A JP 8438480A JP 8438480 A JP8438480 A JP 8438480A JP S5710102 A JPS5710102 A JP S5710102A
Authority
JP
Japan
Prior art keywords
film
dry
heated
reggedness
creaselike
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.)
Pending
Application number
JP8438480A
Other languages
Japanese (ja)
Inventor
Teizo Izumitani
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
Priority to JP8438480A priority Critical patent/JPS5710102A/en
Publication of JPS5710102A publication Critical patent/JPS5710102A/en
Pending 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)
  • Overhead Projectors And Projection Screens (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

PURPOSE:To produce a retroreflective sheet of wide angle characteristics by using paint having such adhesive strength that it expands or contracts and forms creaselike ruggedness when heated to dry. CONSTITUTION:Paint having such adhesive strength that is expands or contracts and forms creaselike reggedness when heated to dry is coated on a release sheet 2, thereby forming transparent base film 1. Before the film 1 dries, a multiplicity of transparent microballs 3, 3' are buried therein, thereby forming a retroreflective layer A. The film 1 is then heated to dry, thereby forming creaselike reggedness 4, 4' on the top surface. Thereafter, the paint similar to that of the film 1 is coated on A, and is heated to dry, so that a transparent focal film 6 having reggedness 7, 7' is formed. Finally, a reflection reinforcing device 8 is formed on the film 6 in a manner as to form the same shapes as those of 7, 7', and the sheet 2 is removed.
JP8438480A 1980-06-21 1980-06-21 Production of retroreflective sheet of wide angle characteristic Pending JPS5710102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8438480A JPS5710102A (en) 1980-06-21 1980-06-21 Production of retroreflective sheet of wide angle characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8438480A JPS5710102A (en) 1980-06-21 1980-06-21 Production of retroreflective sheet of wide angle characteristic

Publications (1)

Publication Number Publication Date
JPS5710102A true JPS5710102A (en) 1982-01-19

Family

ID=13829058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8438480A Pending JPS5710102A (en) 1980-06-21 1980-06-21 Production of retroreflective sheet of wide angle characteristic

Country Status (1)

Country Link
JP (1) JPS5710102A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63201695A (en) * 1987-02-18 1988-08-19 株式会社日立製作所 Announcing apparatus
JPS63140589U (en) * 1987-03-06 1988-09-16
JPH0337485U (en) * 1989-08-24 1991-04-11
US5896227A (en) * 1996-10-01 1999-04-20 Minnesota Mining And Manufacturing Company Retroreflective sheeting and method for forming same
US5975706A (en) * 1997-03-31 1999-11-02 3M Innovative Properties Company Wide incident angle reflective plate
US6048069A (en) * 1998-03-09 2000-04-11 3M Innovative Properties Company Wide angle image-displaying sheet and system
US8896923B2 (en) 2006-05-10 2014-11-25 Oji Holdings Corporation Corrugated pattern forming sheet, and methods for manufacturing antireflector, retardation plate, original process sheet plate, and optical element

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63201695A (en) * 1987-02-18 1988-08-19 株式会社日立製作所 Announcing apparatus
JPS63140589U (en) * 1987-03-06 1988-09-16
JPH0542466Y2 (en) * 1987-03-06 1993-10-26
JPH0337485U (en) * 1989-08-24 1991-04-11
US5896227A (en) * 1996-10-01 1999-04-20 Minnesota Mining And Manufacturing Company Retroreflective sheeting and method for forming same
US5975706A (en) * 1997-03-31 1999-11-02 3M Innovative Properties Company Wide incident angle reflective plate
US6048069A (en) * 1998-03-09 2000-04-11 3M Innovative Properties Company Wide angle image-displaying sheet and system
US8896923B2 (en) 2006-05-10 2014-11-25 Oji Holdings Corporation Corrugated pattern forming sheet, and methods for manufacturing antireflector, retardation plate, original process sheet plate, and optical element

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