Optical system and image displaying apparatus using the same

Computer graphics processing and selective visual display system – Image superposition by optical means – Operator body-mounted heads-up display

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C359S360000

Reexamination Certificate

active

06853356

ABSTRACT:
The present invention has as its object to provide an optical system which can generally be easily made compact and light in weight and wide in angle of field when image information displayed on a display unit such as a liquid crystal display is observed, and an image displaying apparatus using the same. To achieve this object, the optical system according to the present invention is an optical system for directing a beam from the display unit to a predetermined position to thereby enable an observer to observe image information on the display unit, and when a ray emerging from the center of the display surface of the display unit and passing through the center of the exit pupil of the optical system is defined as a central field angle principal ray, the optical system has a first optical element having on the same member a plurality of eccentric reflecting surfaces eccentric relative to the central field angle principal ray and having power, and an eccentric mirror system comprising at least one eccentric mirror eccentric relative to the central field angle principal ray and having power, and directs the beam from the display unit to the first optical element through the intermediary of the eccentric mirror system and directs the beam emerging from the first optical element to the predetermined position.

REFERENCES:
patent: 5453877 (1995-09-01), Gerbe et al.
patent: 5940218 (1999-08-01), Takahashi
patent: 6023373 (2000-02-01), Inoguchi et al.
patent: 6094241 (2000-07-01), Yamazaki
patent: 6201646 (2001-03-01), Togino et al.
patent: 6252728 (2001-06-01), Togino
patent: 6310736 (2001-10-01), Togino
patent: 6317267 (2001-11-01), Takahashi
patent: 6342871 (2002-01-01), Takeyama
patent: RE37579 (2002-03-01), Takahashi
patent: 6396639 (2002-05-01), Togino et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical system and image displaying apparatus using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical system and image displaying apparatus using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical system and image displaying apparatus using the same will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3488438

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.