[특허]Illumination device

Toyoda Gosei Co., Ltd.

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색도움말
검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Illumination device

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G09F-007/00 B60Q-001/56
미국특허분류(USC)	362/497; 362/555; 362/558; 362/559; 362/031; 040/204; 040/205
출원번호	US-0317125 (2002-12-12)
우선권정보	JP-0166442 (2002-06-07); JP-0380519 (2001-12-13)
발명자 / 주소	Matsuura, Yoshihiro Iwasa, Tadanobu Misawa, Akihiro Tatewaki, Yasumasa
출원인 / 주소	Toyoda Gosei Co., Ltd.
대리인 / 주소	McGinn &
인용정보	피인용 횟수 : 14 인용 특허 : 6

초록
▼

The illumination device comprises at least one light source, and a light pipe positioned at the front side of a license plate, and a light diffusing means. A light of the light sources is led, the light pipe emitting a leading light from the surface of the license plate face. The light emitted from the observed face is diffused by the light diffusing means. The light diffusing means is provided with, rugged portions of an observed face opposite to a light emitting face, or, a light diffusing layer composed of two or more kinds of light transmitting mater...

대표
청구항
▼

1. An illumination device adapted for a license plate, comprising:at least one light source; a light pipe positioned at a front side of the license plate and including a light inlet face for introducing light into the light pipe from the light source, a license plate face for emitting light to the license plate, and an observing face provided at a side opposite to the license plate face; and light diffusing means provided on a side of the observing face with respect to the license plate, wherein light from said at least one light source is diffused at the light diffusing means and led to the license plate so as to emit through the license plate face, and wherein said at least one light source comprises an LED. 2. An illumination device as set forth in claim 1, wherein rugged portions are formed on at least one of the license plate face and the observing face.3. An illumination device as set forth in claim 2, wherein the rugged portions are formed with a plurality of grooves and a density of the grooves in a region becomes higher as the region is located farther from the light inlet face.4. An illumination device as set forth in claim 1, wherein the light source is positioned in opposition to the end face of the light pipe.5. An illumination device as set forth in claim 1, wherein the at least one light source comprises a plurality of LEDs, and the plurality of LEDs are linearly arranged under a condition of opposing to a common end face defining the light inlet face the light pipe.6. An illumination device as set forth in claim 1, wherein the light diffusing means comprises a light diffusing layer formed on the observing face and comprising at least two kinds of light transmitting materials, andwherein refractive indexes of at least two of said light transmitting materials are different from each other. 7. An illumination device as set forth in claim 6, wherein the light diffusing layer comprises particles that are contained in a basic material of the light transmission materials, the particles comprising material having a refractive index different from that of the basic material.8. An illumination device asset forth in claim 7, wherein the particles comprise an acrylic resin.9. An illumination device as set forth in claim 7, wherein the light diffusing layer is formed by printing.10. An illumination device as set forth in claim 6, wherein the light diffusing layer is formed in dot matrix on the observing face.11. An illumination device as set forth in claim 6, wherein a rate of an area of the light diffusing layer occupying an area of the observing face is 30 to 90%.12. An illumination device as set forth in claim 6, wherein light transmittance in a direction of the light emitting face from the light diffusing layer is 70 to 95%.13. An illumination device as set forth in claim 6, wherein the light diffusing layer comprises silica.14. A light guide member comprising:a light pipe operable to be positioned at a front side of an illuminating object and comprising a light inlet face for introducing light into the light pipe, a light emitting face for emitting light to the illuminating object, and an observing face provided at a side opposite to the light emitting face; and a light diffusing means provided on a side of the observing face with respect to the illuminating object, wherein light introduced from the light inlet face is diffused at the light diffusing means and led to the illumination object so as to emit through the illumination object face. 15. An illumination device as set forth in claim 14, wherein rugged portions are formed on at least one of the light emitting face and the observing face.16. An illumination device as set forth in claim 14, wherein the light diffusing means comprises a light diffusing layer formed on the observing face and comprises at least two kinds of light transmitting materials, andwherein refractive indexes of at least two of said light transmitting materials are different from each other. 17. A planar lighting unit, comprising a light guide member as set forth in claim 14 and at least one light source.18. A planar lighting unit as set forth in claim 17, wherein the light source comprises a white LED.19. A license plate apparatus comprising:a planar lighting unit as set forth in claim 14, and a license plate disposed so that an indication face of the license plate is opposed to a side of the light emitting face of the planar lighting unit. 20. An illumination device adapted for a license plate, comprising:at least one light source; a light pipe disposed at a front side of the license plate and comprising: a light inlet face for introducing light into the light pipe from the light source, a light emitting face adjacent to the license plate, for emitting light to the license plate, and an observing face provided at a side opposite to the light emitting face; and a light diffusing layer provided on the observing face, wherein light from the at least one light source is diffused at the light diffusing layer and directed through the light emitting face to the license plate. 21. An illumination device as set forth in claim 20, wherein the light diffusing layer comprises at least two kinds of light transmitting material, andwherein refractive indexes of at least two of the light transmitting materials are different from each other. 22. An illumination device as set forth in claim 21, wherein the light diffusing layer comprises:a light transmitting material; and particles in the light transmitting material, wherein a refractive index of the light transmitting material is not equal to a refractive index of the particles. 23. An illumination device as set forth in claim 22, wherein the particles comprise an acrylic resin.24. An illumination device set forth in claim 22, wherein the light diffusing layer comprises a printed light diffusing layer.25. An illumination device as set forth in claim 21, wherein the light diffusing layer comprises a dot matrix light diffusing layer on the observing face.26. An illumination device as set forth in claim 21, wherein an area of the light diffusing layer is equal to 30% to 90% of an area of the observing face.27. An illumination device as set forth in claim 21, wherein light transmittance in a direction of the light emitting face from the light diffusing layer is 70% to 95%.28. An illumination device as set forth in claim 21, wherein the light diffusing layer comprises silica.29. An illumination device as set forth in claim 22, wherein a diameter of the particles is smaller than a thickness of the light diffusing layer.30. An illumination device as set forth in claim 22, wherein an average diameter of the particles is between 3 μm and 20 μm.31. An illumination device as set forth in claim 22, wherein an average diameter of the particles is between 6 μm and 12 μm.32. An illumination device as set forth in claim 22, wherein a thickness of the light diffusing layer satisfies the expression:r<t<2r wherein r is an average particle diameter, and t is the thickness of the light diffusing layer. 33. A light guide member comprising:a light pipe operable to be disposed at a front side of an illuminating object and comprising: a light inlet face for introducing light into the light pipe, a light emitting face for emitting light to the illuminating object, and an observing face provided at a side opposite to the light emitting face; a light diffusing layer provided on the observing face, wherein light introduced from the light inlet face is diffused at the light diffusing layer and directed through the light emitting face to the illuminating object. 34. An illumination device as set forth in claim 33, wherein the light diffusing layer is disposed on the observing face and comprises at least to kinds of light transmitting materials, andwherein refractive indexes of at least two of the light transmitting materials are different from each other. 35. A license plate apparatus comprising:a planar lighting unit comprising: a light pipe disposed at a front side of an illuminating object and including a light inlet face that introduces light into the light pipe, a light emitting face that emits light to the illuminating object, and an observing face provided at a side opposite to the light emitting face; and light diffusing means for diffusing light, provided on a side of the observing face with respect to the illuminating object, wherein light introduced from the light inlet face is diffused at the light diffusing means and led to the illumination object to emit through the illumination object face; and a license plate disposed such that an indication face of the license plate is opposed to a side of the light emitting face of the planar lighting unit.

인용문헌 (6)

이 특허를 인용한 특허 (14)

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	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

과학기술 지식인프라 ScienceON

ScienceON Chatbot

연합인증

특허 상세정보

Illumination device

초록
▼

대표
청구항
▼

인용문헌 (6)

이 특허를 인용한 특허 (14)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Illumination device

초록 ▼

대표청구항 ▼

인용문헌 (6)

이 특허를 인용한 특허 (14)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼