JPS56110904A - Production of polyhedral mirror - Google Patents

Production of polyhedral mirror

Info

Publication number
JPS56110904A
JPS56110904A JP1304580A JP1304580A JPS56110904A JP S56110904 A JPS56110904 A JP S56110904A JP 1304580 A JP1304580 A JP 1304580A JP 1304580 A JP1304580 A JP 1304580A JP S56110904 A JPS56110904 A JP S56110904A
Authority
JP
Japan
Prior art keywords
core
metal
mirror
alluminum
side face
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
JP1304580A
Other languages
Japanese (ja)
Inventor
Shoji Osawa
Nagahiro Shibakusa
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.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite 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 Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP1304580A priority Critical patent/JPS56110904A/en
Publication of JPS56110904A publication Critical patent/JPS56110904A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00596—Mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/09—Multifaceted or polygonal mirrors, e.g. polygonal scanning mirrors; Fresnel mirrors

Abstract

PURPOSE:To obtain a high-accuracy polyhedral mirror, by forming a plastic layer on the side face of a polygonal metal core and then evaporating a metallic film on the surface of the plastic layer. CONSTITUTION:The thin plastic layer 2 is formed at the side face area of a polygonal plate type core 1 made of metal which becomes the center part of a polyhedral mirror by an injection molding, a casting and other methods. Furthermore, a metal such as alluminum or the like a vacuum-evaporated on the surface of the layer 2 to obtain a mirror surface. In this case, the core 1 uses the alluminum cut with the diagonal length (x) of 28mm. and the thickness of 8mm. for example. On the other hand, the mirror surface part 2 is formed by producing the methyl methacrylate resin by an injection moldig and with use of a metal mold having a coarseness of 0.05S on the surface of evaporation and then evaporating the SiO by 30-80Angstrom on the resin surface after a vacuum evaporation of alluminum by 2,000Angstrom . In such way, the side face accuracy of the metallic core 1 can be eased greatly to obtain a polyhedral mirror that has a substantially equal quality to the conventional product.
JP1304580A 1980-02-07 1980-02-07 Production of polyhedral mirror Pending JPS56110904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1304580A JPS56110904A (en) 1980-02-07 1980-02-07 Production of polyhedral mirror

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1304580A JPS56110904A (en) 1980-02-07 1980-02-07 Production of polyhedral mirror

Publications (1)

Publication Number Publication Date
JPS56110904A true JPS56110904A (en) 1981-09-02

Family

ID=11822138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1304580A Pending JPS56110904A (en) 1980-02-07 1980-02-07 Production of polyhedral mirror

Country Status (1)

Country Link
JP (1) JPS56110904A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606903A (en) * 1983-06-20 1985-01-14 Hoya Corp Reflection mirror and its manufacture
EP0294218A2 (en) * 1987-06-04 1988-12-07 Konica Corporation Manufacturing process for polygonal mirror
US4842354A (en) * 1985-02-27 1989-06-27 Canon Kabushiki Kaisha Rotary polygonal mirror and method of making the same
JPH02262105A (en) * 1989-03-31 1990-10-24 Matsushita Electric Ind Co Ltd Rotary polyhedral mirror and production thereof
US5296959A (en) * 1991-01-30 1994-03-22 Minolta Camera Kabushiki Kaisha Polygonal mirror, and manufacturing process and mold thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141238A (en) * 1976-05-19 1977-11-25 Xerox Corp Method of manufacturing highhspeed multii surface scanner
JPS52141239A (en) * 1976-05-19 1977-11-25 Xerox Corp Method of manufacturing highhspeed multii surface scanner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141238A (en) * 1976-05-19 1977-11-25 Xerox Corp Method of manufacturing highhspeed multii surface scanner
JPS52141239A (en) * 1976-05-19 1977-11-25 Xerox Corp Method of manufacturing highhspeed multii surface scanner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606903A (en) * 1983-06-20 1985-01-14 Hoya Corp Reflection mirror and its manufacture
US4842354A (en) * 1985-02-27 1989-06-27 Canon Kabushiki Kaisha Rotary polygonal mirror and method of making the same
EP0294218A2 (en) * 1987-06-04 1988-12-07 Konica Corporation Manufacturing process for polygonal mirror
JPH02262105A (en) * 1989-03-31 1990-10-24 Matsushita Electric Ind Co Ltd Rotary polyhedral mirror and production thereof
US5296959A (en) * 1991-01-30 1994-03-22 Minolta Camera Kabushiki Kaisha Polygonal mirror, and manufacturing process and mold thereof
US5581416A (en) * 1991-01-30 1996-12-03 Minolta Camera Kabushiki Kaisha Polygonal mirror, and manufacturing process and mold thereof

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