KR20110122674A - 건식 소거가능한 프로젝션 용품 및 시스템 - Google Patents

건식 소거가능한 프로젝션 용품 및 시스템 Download PDF

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Publication number
KR20110122674A
KR20110122674A KR1020117018205A KR20117018205A KR20110122674A KR 20110122674 A KR20110122674 A KR 20110122674A KR 1020117018205 A KR1020117018205 A KR 1020117018205A KR 20117018205 A KR20117018205 A KR 20117018205A KR 20110122674 A KR20110122674 A KR 20110122674A
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KR
South Korea
Prior art keywords
article
light
angle
optical diffuser
reflector
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.)
Withdrawn
Application number
KR1020117018205A
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English (en)
Korean (ko)
Inventor
유펭 리우
엔카이 하오
데이비드 티 유스트
란 에이치 리우
프레데릭 제이 구스타프슨
윌렘 브이 바스티아엔스
유 양
Original Assignee
쓰리엠 이노베이티브 프로퍼티즈 컴파니
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.)
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Publication date
Application filed by 쓰리엠 이노베이티브 프로퍼티즈 컴파니 filed Critical 쓰리엠 이노베이티브 프로퍼티즈 컴파니
Publication of KR20110122674A publication Critical patent/KR20110122674A/ko
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/12—Repeatedly-usable boards or tablets for writing or drawing having translucent writing surfaces producing visual impressions by co-operation with backing members

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Polarising Elements (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Surface Treatment Of Optical Elements (AREA)
  • Drawing Aids And Blackboards (AREA)
KR1020117018205A 2009-01-08 2010-01-08 건식 소거가능한 프로젝션 용품 및 시스템 Withdrawn KR20110122674A (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US14327509P 2009-01-08 2009-01-08
US61/143,275 2009-01-08
US17099309P 2009-04-20 2009-04-20
US61/170,993 2009-04-20

Publications (1)

Publication Number Publication Date
KR20110122674A true KR20110122674A (ko) 2011-11-10

Family

ID=42311478

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020117018205A Withdrawn KR20110122674A (ko) 2009-01-08 2010-01-08 건식 소거가능한 프로젝션 용품 및 시스템

Country Status (6)

Country Link
US (1) US8220932B2 (https=)
EP (1) EP2385904A1 (https=)
JP (1) JP2012514774A (https=)
KR (1) KR20110122674A (https=)
CN (1) CN102405142A (https=)
WO (1) WO2010081006A1 (https=)

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WO2015098685A1 (ja) * 2013-12-27 2015-07-02 コニカミノルタ株式会社 光学フィルム、偏光板および画像表示装置
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CN105223766A (zh) 2014-07-04 2016-01-06 中强光电股份有限公司 投影屏幕以及投影屏幕的制作方法
US10509307B2 (en) 2014-07-30 2019-12-17 Corning Incorporated High contrast, glass-based, writeable/erasable front projection screens
CN109976082B (zh) * 2017-12-14 2021-11-23 台湾扬昕股份有限公司 投影幕及吸光膜
CN110262179B (zh) * 2018-03-12 2025-09-12 姚苏栩 智能投影书写白板

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Also Published As

Publication number Publication date
US20100171929A1 (en) 2010-07-08
CN102405142A (zh) 2012-04-04
WO2010081006A1 (en) 2010-07-15
EP2385904A1 (en) 2011-11-16
US8220932B2 (en) 2012-07-17
JP2012514774A (ja) 2012-06-28

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Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20110804

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid