[특허]Head-mounted image display apparatus

Head-mounted image display apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G02B-005/08 G02B-071/82 G02B-005/10 G02B-017/00
출원번호	US-0549997 (1995-10-30)
우선권정보	JP-0264828 (1993-10-22)
발명자 / 주소	Togino Takayoshi,JPX
출원인 / 주소	Olympus Optical Co., Ltd., JPX
대리인 / 주소	Cushman Darby & Cushman IP Group of Pillsbury Madison & Sutro LLP
인용정보	피인용 횟수 : 42 인용 특허 : 0

초록 ▼

A head-mounted image display apparatus (HMD) including an ocular optical system, which has an F-number of 1.5 to 3 and enables a flat and clear image to be observed at a view angle of up to 60.degree. or more with substantially no aberration. The HMD has at least two, surfaces and each having a concave surface directed toward the pupil. The two surfaces are disposed so that light rays from an image display device are reflected by the first surface, and the reflected light rays are reflected by the second surface and pass through the first surface to enter an observer's eyeball.

대표청구항 ▼

[ What we claim is:] [1.] A head-mounted image display apparatus comprising:a device for displaying an image; andan ocular optical system for leading said image to an observer's eyeball,said ocular optical system having, in order from the observer's eyeball side, a first surface having a concave surface directed toward the observer's eyeball side, and a second surface having a concave surface directed toward the observer's eyeball side, wherein a medium having a refractive index n larger than 1 (n>1) is disposed between said first and second surfaces,said image display device having an image surface directed toward at least either one of intersections between an optical axis extending from said observer's eyeball and said first surface and between said optical axis and said second surface, and said image display device being suitable to be disposed in front of an observer's face,said image display device and said ocular optical system being formed so that a bundle of light rays emitted from said image display device is reflected by said first surface, and the reflected light ray bundle is reflected by said second surface and then passes through said first surface to enter said observer's eyeball, and satisfying the following condition: EQU 0.5<.vertline.R.sub.1 /R.sub.2 .vertline.<1.8wherein R.sub.1 is a radius of curvature of said first surface, and R.sub.2 is a radius of curvature of said second surface.

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Osterhout, Ralph F.; Lohse, Robert Michael, Method and apparatus for biometric data capture.
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Miller, Gregory D.; Border, John N.; Osterhout, Ralph F., Optical imperfections in a light transmissive illumination system for see-through near-eye display glasses.
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Border, John N.; Bietry, Joseph; Osterhout, Ralph F., See-through near-eye display glasses including a curved polarizing film in the image source, a partially reflective, partially transmitting optical element and an optically flat film.
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Border, John N.; Osterhout, Ralph F., See-through near-eye display glasses including an auto-brightness control for the display brightness based on the brightness in the environment.
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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
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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연합인증

Head-mounted image display apparatus 원문보기

초록 ▼

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연구과제 타임라인

이 특허를 인용한 특허 (42)

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Head-mounted image display apparatus 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (42)

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