[특허]Optical film

[미국특허] Optical film 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-007/02 G02B-005/08 G02B-005/26 G02B-005/28 G02B-005/30
출원번호	US-0461406 (2006-07-31)
등록번호	US-7297393 (2007-11-20)
발명자 / 주소	Jonza,James M. Weber,Michael F. Ouderkirk,Andrew J. Stover,Carl A.
출원인 / 주소	3M Innovative Properties Company
인용정보	피인용 횟수 : 2 인용 특허 : 147

초록 ▼

Birefringent optical films have a Brewster angle (the angle at which reflectance of p-polarized light goes to zero) which is very large or is nonexistent. This allows for the construction of multilayer mirrors and polarizers whose reflectivity for p-polarized light decreases slowly with angle of incidence, are independent of angle of incidence, or increase with angle of incidence away from the normal. As a result, multilayer films having high reflectivity (for both planes of polarization for any incident direction in the case of mirrors, and for the selected direction in the case of polarizers) over a wide bandwidth can be achieved.

대표청구항 ▼

We claim: 1. A multilayered optical film, comprising: a plurality of alternating layers of a first and second material, the material layers having refractive indices nx, ny associated respectively with orthogonal in-plane x and y axes parallel to a surface of the film, the material layers also having refractive indices nz associated with a z-axis perpendicular to the film plane; wherein adjoining layers of the first and second material form an interface, the first material layer being birefringent and having an index of refraction associated with at least one of the in-plane axes that is higher than the associated in-plane index of the second material layer; and wherein the refractive index nz of the first material layer is selected to be less than the refractive index nz of the second material layer, such that reflectivity of the interface for p-polarized light monotonically increases with angle of incidence. 2. The multilayered optical film of claim 1, wherein the first and second materials are polymeric. 3. The multilayered optical film of claim 2, wherein the first and second materials have similar rheological properties such that they can be co-extruded. 4. The multilayered optical film of claim 2, wherein the first material is a crystalline naphthalene dicarboxylic acid polyester. 5. The multilayered optical film of claim 1, wherein the first material layer is uniaxially birefringent. 6. The multilayered optical film of claim 1, wherein the first material layer is biaxially birefringent. 7. The multilayered optical film of claim 1, wherein the multilayered optical film is a reflective polarizer. 8. The multilayered optical film of claim 1, wherein the multilayered optical film is a mirror.

이 특허에 인용된 특허 (147) 인용/피인용 타임라인 분석

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Cobb ; Jr. Sanford (St. Mary\s Point MN), Totally internally reflecting thin, flexible film.
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Sitzema Ronald L. (Ellsworth MI) Troppman Dale A. (Charlevoix MI) Motter Gregg A. (Midland MI), Transflection reflector having controlled reflected and transmitted light distribution.
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Akiyama Masahiko (Kawasaki JPX) Suzuki Kouji (Yokohama JPX) Tominaga Mamoru (Kawagoe JPX), Transmission liquid crystal display apparatus.
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McKnight William H. (San Diego CA) Stotts Larry B. (Chula Vista CA) Monahan Michael A. (Poway CA), Transmissive and reflective liquid crystal display.
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Luecke Robert A. (Newark OH) Gould Gordon E. (Newark OH), Tubular, multi-layer film and method of making.
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Arends Charles B. (Midland MI) Schrenk Walter J. (Midland MI) Lewis Ray A. (Midland MI) Ramanathan Ravi (Midland MI) Wheatley John (Midland MI), Two component infrared reflecting film.
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Kondo Katsumi (Katsuta JPX) Hirakata Junichi (Hitachi JPX) Ito Osamu (Hitachi JPX) Kitamura Teruo (Katsuta JPX) Ohara Shuichi (Hitachi JPX) Kikuchi Naoki (Mobara JPX) Shimura Masato (Hitachi JPX), Unabsorbing type polarizer, method for manufacturing the same, polarized light source using the same, and apparatus for.
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Utsumi Shigeo (Yokohama JPX), Uniaxially high-oriented polyethylene naphthalate film for liquid crystal panel substrates.
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Utsumi Shigeo (Yokohama JPX), Uniaxially high-oriented polyethylene naphthalate film for polarizing plates.
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Owada Mitsuru (Kanagawa JPX) Tajima Mizuho (Tokyo JPX) Nagashima Yoshitake (Kanagawa JPX), Video projection apparatus.
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Wheatley John A. (Midland MI) Schrenk Walter J. (Midland MI), Visibly transparent infrared reflecting film with color masking.
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이 특허를 인용한 특허 (2) 인용/피인용 타임라인 분석

Broekhuis, Michael D.; Byker, Harlan J.; Millett, Frederick A., Enhanced thermochromic window which incorporates a film with multiple layers of alternating refractive index.
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Menge, Peter R.; Perna, Louis, Scintillation separator.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Optical film 원문보기

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이 특허에 인용된 특허 (147) 인용/피인용 타임라인 분석

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