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TW200724974A - Optical modulation element - Google Patents

Optical modulation element

Info

Publication number
TW200724974A
TW200724974A TW094146486A TW94146486A TW200724974A TW 200724974 A TW200724974 A TW 200724974A TW 094146486 A TW094146486 A TW 094146486A TW 94146486 A TW94146486 A TW 94146486A TW 200724974 A TW200724974 A TW 200724974A
Authority
TW
Taiwan
Prior art keywords
light
modulation element
optical modulation
optical
trapezoid
Prior art date
Application number
TW094146486A
Other languages
Chinese (zh)
Other versions
TWI287110B (en
Inventor
Po-Hung Yao
Yi-Ting Sun
I-Kai Pan
Yu-Nan Pao
Original Assignee
Ind Tech Res Inst
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 Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW94146486A priority Critical patent/TWI287110B/en
Publication of TW200724974A publication Critical patent/TW200724974A/en
Application granted granted Critical
Publication of TWI287110B publication Critical patent/TWI287110B/en

Links

Landscapes

  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)

Abstract

An optical modulation element is disclosed, which comprises a first optical surface for receiving an incident light and a second optical surface for enabling the incident light to be discharge therefrom; wherein at least a trapezoid-shaped microstructure of light collimating ability and at least a semi-lenticular microstructure of light scattering ability are formed on the second optical surface. Moreover, each trapezoid-shaped microstructure has two slanted surfaces respectively connected to the surface of a substrate and a level surface arranged between the two slanted surfaces and parallel to the surface of the substrate. The optical modulation element is capable of enhancing luminous efficiency of a light source apparatus and the intensity of light at normal direction, such that the structure of the light source apparatus utilizing the same can be simplified whereas the manufacturing cost can also be reduced.
TW94146486A 2005-12-26 2005-12-26 Optical modulation element TWI287110B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94146486A TWI287110B (en) 2005-12-26 2005-12-26 Optical modulation element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94146486A TWI287110B (en) 2005-12-26 2005-12-26 Optical modulation element

Publications (2)

Publication Number Publication Date
TW200724974A true TW200724974A (en) 2007-07-01
TWI287110B TWI287110B (en) 2007-09-21

Family

ID=39460225

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94146486A TWI287110B (en) 2005-12-26 2005-12-26 Optical modulation element

Country Status (1)

Country Link
TW (1) TWI287110B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8297802B2 (en) 2009-10-09 2012-10-30 Wintek Corporation Optical film having linear protrusions with inwardly curved ridges and back light module with the optical film
TWI470314B (en) * 2008-06-25 2015-01-21 Eternal Materials Co Ltd Optical film
CN113558594A (en) * 2020-04-29 2021-10-29 华为技术有限公司 Light Emitters and Light Sensing Devices
TWI834244B (en) * 2022-08-12 2024-03-01 奇象光學有限公司 Optical films and light source modules

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI470314B (en) * 2008-06-25 2015-01-21 Eternal Materials Co Ltd Optical film
US8297802B2 (en) 2009-10-09 2012-10-30 Wintek Corporation Optical film having linear protrusions with inwardly curved ridges and back light module with the optical film
CN113558594A (en) * 2020-04-29 2021-10-29 华为技术有限公司 Light Emitters and Light Sensing Devices
CN113558594B (en) * 2020-04-29 2022-12-27 华为技术有限公司 Light emitter and light sensing device
TWI834244B (en) * 2022-08-12 2024-03-01 奇象光學有限公司 Optical films and light source modules

Also Published As

Publication number Publication date
TWI287110B (en) 2007-09-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees