TW200740595A - Mold part and molded flat-plate product - Google Patents

Mold part and molded flat-plate product

Info

Publication number
TW200740595A
TW200740595A TW095149177A TW95149177A TW200740595A TW 200740595 A TW200740595 A TW 200740595A TW 095149177 A TW095149177 A TW 095149177A TW 95149177 A TW95149177 A TW 95149177A TW 200740595 A TW200740595 A TW 200740595A
Authority
TW
Taiwan
Prior art keywords
flat
mold part
plate product
max2
max1
Prior art date
Application number
TW095149177A
Other languages
Chinese (zh)
Inventor
Keisuke Tsukada
Kazunori Ueki
Original Assignee
Zeon Corp
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 Zeon Corp filed Critical Zeon Corp
Publication of TW200740595A publication Critical patent/TW200740595A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape

Abstract

A mold part capable of efficiently molding a molded flat-plate product with excellent optical performance. In the mold part, irregular surface structures with a maximum centerline average roughness Ra (max1) of 3.0 to 1000 μm are formed on a cavity surface for forming the surface of the molded flat-plate product. Each irregular surface structure has a groove or ridge structure unit with two or more flat surfaces. Grooves and ridges are formed on each flat surface of the structure unit. On each flat surface with the grooves and ridges, the maximum centerline average roughness Ra (max2) has the relation of 0.5 > Ra (max2)/Ra (max1) > 0.002 relative to Ra (max1) and has the relation of Ra (max2)/Ra (min2) > 1.5 relative to the minimum centerline average roughness Ra (min2).
TW095149177A 2005-12-28 2006-12-27 Mold part and molded flat-plate product TW200740595A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2005378178 2005-12-28
JP2006073919 2006-03-17
PCT/JP2006/325377 WO2007077737A1 (en) 2005-12-28 2006-12-20 Mold part and molded flat-plate product

Publications (1)

Publication Number Publication Date
TW200740595A true TW200740595A (en) 2007-11-01

Family

ID=38228093

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095149177A TW200740595A (en) 2005-12-28 2006-12-27 Mold part and molded flat-plate product

Country Status (3)

Country Link
JP (1) JPWO2007077737A1 (en)
TW (1) TW200740595A (en)
WO (1) WO2007077737A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI457219B (en) * 2007-12-27 2014-10-21 Kuraray Co Mold member, manufacturing process thereof and forming process of photo-controlling member by using it

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4878584B2 (en) * 2007-08-01 2012-02-15 株式会社名機製作所 Injection compression mold for light guide plate
JP5157435B2 (en) * 2007-12-28 2013-03-06 王子ホールディングス株式会社 Method for producing uneven pattern sheet and method for producing optical sheet
WO2010010840A1 (en) * 2008-07-22 2010-01-28 日本ゼオン株式会社 Photodiffusion plate, photodiffusion plate manufacturing method, surface illuminant device, and display device
JP5483676B2 (en) * 2009-03-31 2014-05-07 株式会社きもと Prism sheet and backlight using the same
JP5779813B2 (en) * 2010-09-21 2015-09-16 国立大学法人岩手大学 Mold, method for manufacturing the same, method for manufacturing resin molded body using mold, and resin molded body manufactured by the manufacturing method
JP2013083997A (en) * 2012-12-13 2013-05-09 Oji Holdings Corp Rugged pattern sheet and optical device
JP6228068B2 (en) * 2014-04-24 2017-11-08 デクセリアルズ株式会社 Optical member, method for manufacturing the same, window material and fittings
JP6842648B2 (en) * 2016-01-15 2021-03-17 大日本印刷株式会社 Optical sheet and optical panel
JP7257179B2 (en) * 2019-02-21 2023-04-13 テクノＵｍｇ株式会社 Molding

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3843676B2 (en) * 1999-07-15 2006-11-08 松下電工株式会社 Optical panel mold and manufacturing method thereof
JP2001150064A (en) * 1999-12-02 2001-06-05 Matsushita Electric Ind Co Ltd Method of manufacturing fine and precise metal mold
JP2003014938A (en) * 2001-04-12 2003-01-15 Mitsubishi Engineering Plastics Corp Light transmission plate composed of transparent resin, method for molding the same, bushing, metallic mold assembling body and surface light source device
KR100897745B1 (en) * 2002-06-26 2009-05-15 삼성전자주식회사 Back light assembly and direct type liquid crystal display
JP2005037868A (en) * 2003-06-30 2005-02-10 Sankyo Seiki Mfg Co Ltd Method for forming antireflection face, method for manufacturing mold for forming antireflection member, mold, antireflection member, and method for manufacturing master member for manufacturing mold
JP4544517B2 (en) * 2003-07-15 2010-09-15 三菱レイヨン株式会社 Light source device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI457219B (en) * 2007-12-27 2014-10-21 Kuraray Co Mold member, manufacturing process thereof and forming process of photo-controlling member by using it

Also Published As

Publication number Publication date
WO2007077737A1 (en) 2007-07-12
JPWO2007077737A1 (en) 2009-06-11

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