Liquid crystal cells – elements and systems – Liquid crystal system – Heads-up display
Reexamination Certificate
2005-11-08
2005-11-08
Parker, Kenneth (Department: 2871)
Liquid crystal cells, elements and systems
Liquid crystal system
Heads-up display
C349S013000, C359S630000
Reexamination Certificate
active
06963379
ABSTRACT:
A head-mounted display (HMD) is provided. The HMD includes: an image-forming unit that produces and emits an image; a half mirror disposed obliquely with respect to the image-forming unit for transmitting some part of the image entering from the image-forming unit and transmitting the remaining part; a pinhole located at a focal point of the image reflected from the half mirror for transmitting the incident image and focusing the transmitted image onto a dark space within the housing; a collimating lens disposed opposite the pinhole with respect to the half mirror for converging the incident divergent image and producing parallel light; a prism unit disposed opposite the collimating lens for guiding the path of the incident image; and a Fresnel lens disposed opposite a part of the prism unit for focusing the incident image onto an eyeball. A user wearing the HMD can view the image formed in the housing through the pinhole.
REFERENCES:
patent: 4195915 (1980-04-01), Lichty et al.
patent: 4447128 (1984-05-01), Ferrer
patent: 5483307 (1996-01-01), Anderson
patent: 5506728 (1996-04-01), Edwards et al.
patent: 5644323 (1997-07-01), Hildebrand et al.
patent: 5729242 (1998-03-01), Margerum et al.
patent: 5793339 (1998-08-01), Takahashi
patent: 5808801 (1998-09-01), Nakayama et al.
patent: 5933279 (1999-08-01), Yamazaki
patent: 6396463 (2002-05-01), Tomono
patent: 6445507 (2002-09-01), Togino et al.
patent: 6697200 (2004-02-01), Nagaoka
Parker Kenneth
Samsung Electronics Co,. Ltd.
LandOfFree
Head-mounted display does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Head-mounted display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head-mounted display will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3491796