Compact, head-mountable display device with suspended eyepiece assembly
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G09G-005/00
G03H-001/00
출원번호
US-0589299
(2000-06-07)
발명자
/ 주소
Spitzer,Mark B.
출원인 / 주소
The Microoptical Corporation
대리인 / 주소
Weingarten, Schurgin, Gagnebin & Lebovici LLP
인용정보
피인용 횟수 :
150인용 특허 :
156
초록▼
A compact, lightweight, head-mountable display device is provided for transmitting an image to a user's eye. The device includes a projection system including a display attached at one end to a head-mountable support fixture. An eyepiece assembly is attached to a second end of the support fixture. T
A compact, lightweight, head-mountable display device is provided for transmitting an image to a user's eye. The device includes a projection system including a display attached at one end to a head-mountable support fixture. An eyepiece assembly is attached to a second end of the support fixture. The support fixture maintains the projection system and the eyepiece assembly in alignment along an optical path through free space between the projection system and the eyepiece assembly, with the projection system disposed to transmit the image on the optical path and the eyepiece assembly disposed to receive the image from the projection system and to direct the image to the user's eye.
대표청구항▼
What is claimed is: 1. A compact display device for transmitting an image to a user's eye, the display device comprising: a head-mountable support fixture comprising an elongated member having a first end and a second end; a projection system including a display operative to provide an image, the s
What is claimed is: 1. A compact display device for transmitting an image to a user's eye, the display device comprising: a head-mountable support fixture comprising an elongated member having a first end and a second end; a projection system including a display operative to provide an image, the support fixture attached at the first end to the projection system; and an eyepiece assembly attached to the second end of the support fixture, wherein the eyepiece assembly is disposed within a hollow, transparent, spherical curved optical and structural housing; wherein the support fixture maintains the projection system and the eyepiece assembly in alignment along an optical path through free space between the projection system and the eyepiece assembly, with the projection system disposed to transmit the image on the optical path and the eyepiece assembly disposed to receive the image from the projection system and to direct the image to the user's eye. 2. The device of claim 1, wherein the eyepiece assembly further comprises a polarization beam-splitter coating, a quarterwave plate, and a focusing mirror disposed with the curved housing arranged so that polarized light from the projection system passes the beam-splitter coating and the quarterwave plate and is reflected from the focusing mirror to pass in the opposite direction through the quarterwave plate and is reflected from the beam-splitter coating toward the user's eye. 3. The device of claim 2, wherein a further lens is disposed within the curved housing. 4. The device of claim 1, wherein the eyepiece assembly further comprises a lens having an outer surface forming a part of the curved housing and an inner surface, the curvatures of the outer surface and the inner surface selected to provide a desired degree of magnification or aberration correction of light on the optical path. 5. The device of claim 1, wherein the curved housing includes an internal surface having a curvature selected to form a lens. 6. The device of claim 5, wherein the lens is a meniscus lens. 7. The device of claim 1, wherein the curved housing transmits ambient light. 8. The device of claim 1, wherein the curved housing is coated with a scratch resistant coating or an antireflection coating. 9. The device of claim 1, further comprising a housing, the projection system disposed within the housing, circuits and wiring in electrical communication with the projection system disposed within the housing, and the support fixture attached to the housing. 10. The device of claim 9, further comprising a mounting device configured to mount the housing to spectacle frames or a headband. 11. The device of claim 9, further including a microphone supported by the housing. 12. The device of claim 11, wherein the microphone is mounted on a boom. 13. The device of claim 9, further including an earpiece supported by the housing and operative to transmit audio output signals. 14. The device of claim 9, further comprising a boom attached to a headband, the housing attached to the boom. 15. The device of claim 14, further comprising a microphone supported by the headband. 16. The device of claim 14, further comprising an earpiece supported by the headband and operative to transmit audio output signals. 17. A cellular telephone in communication with the display device of claim 1. 18. A computer in communication with the display device of claim 1. 19. A personal digital assistant in communication with the display device of claim 1.
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