TW476006B - Lens sheet - Google Patents

Lens sheet

Info

Publication number
TW476006B
TW476006B TW89111036A TW89111036A TW476006B TW 476006 B TW476006 B TW 476006B TW 89111036 A TW89111036 A TW 89111036A TW 89111036 A TW89111036 A TW 89111036A TW 476006 B TW476006 B TW 476006B
Authority
TW
Taiwan
Prior art keywords
lens sheet
plane
light source
prism
light
Prior art date
Application number
TW89111036A
Other languages
Chinese (zh)
Inventor
Makoto Ookawa
Masao Hamada
Akira Motonaga
Yukichi Konami
Akiyoshi Kogame
Original Assignee
Mitsubishi Rayon Co
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
Priority claimed from JP10081504A external-priority patent/JPH11281805A/en
Priority claimed from JP10222074A external-priority patent/JP2000047008A/en
Priority claimed from JP10222075A external-priority patent/JP2000056106A/en
Priority claimed from JP11048242A external-priority patent/JP2000238052A/en
Application filed by Mitsubishi Rayon Co filed Critical Mitsubishi Rayon Co
Application granted granted Critical
Publication of TW476006B publication Critical patent/TW476006B/en

Links

Landscapes

  • Liquid Crystal (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention provides a lens sheet, whose characteristics are: it is a lens sheet formed of plural prism rows, each prism of which has two approximately triangular cross sections. The apex angle of the prism array formed on one face of the lens sheet is 50 DEG to 75 DEG, the apex angle of the prism array formed on the other face of the lens sheet is 110 DEG to 160. The present invention also provides a plane light source device, whose characteristics are: it is formed of a light source; a light guide body with at least one terminal side facing the light source as the incident light plane, and with the surface perpendicular to the incident light plane as the exit plane; and a lens sheet allocated on said exit light plane.
TW89111036A 1998-03-27 1999-08-05 Lens sheet TW476006B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10081504A JPH11281805A (en) 1998-03-27 1998-03-27 Lens sheet and its manufacture method
JP10222074A JP2000047008A (en) 1998-05-25 1998-08-05 Double-face lenticular lens sheet and its production
JP10222075A JP2000056106A (en) 1998-08-05 1998-08-05 Prism sheet and surface light source element
JP11048242A JP2000238052A (en) 1999-02-25 1999-02-25 Manufacture of lens sheet

Publications (1)

Publication Number Publication Date
TW476006B true TW476006B (en) 2002-02-11

Family

ID=27462169

Family Applications (2)

Application Number Title Priority Date Filing Date
TW88113355A TW476005B (en) 1998-03-27 1999-08-05 Lens sheet and manufacturing process therefor
TW89111036A TW476006B (en) 1998-03-27 1999-08-05 Lens sheet

Family Applications Before (1)

Application Number Title Priority Date Filing Date
TW88113355A TW476005B (en) 1998-03-27 1999-08-05 Lens sheet and manufacturing process therefor

Country Status (1)

Country Link
TW (2) TW476005B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI477820B (en) * 2013-01-22 2015-03-21 Himax Tech Ltd Wafer level optical lens structure
US9279964B2 (en) 2013-01-22 2016-03-08 Himax Technologies Limited Wafer level optical lens structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI385411B (en) * 2004-09-29 2013-02-11 Yugengaisha Magtec Method for manufacturing polarized resin lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI477820B (en) * 2013-01-22 2015-03-21 Himax Tech Ltd Wafer level optical lens structure
US9279964B2 (en) 2013-01-22 2016-03-08 Himax Technologies Limited Wafer level optical lens structure

Also Published As

Publication number Publication date
TW476005B (en) 2002-02-11

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Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees