Reflective optical system

Details Reflective optical system Reflective optical system

2007-09-25

2007-09-25

Amari, Alessandro (Department: 2872)

Optical: systems and elements

Prism

With reflecting surface

C353S081000

Reexamination Certificate

active

11081739

ABSTRACT:
A reflective optical system for projectors comprises a single integral piece of transparent optical molding having at least an incident surface, an exit surface, and two or more internal reflection surfaces between the incident surface and the exit surface, each reflection power having a power, positive or negative. The reflective optical system is provided with grooves, desirably blackened grooves, formed between the internal reflection surfaces so as to block out undesirable light proceeding therein. The internal reflection surfaces are formed by coating an aluminum film on an outer wall of the transparent optical molding. The reflective optical system reflects incoming image bearing light through the incident surface on the internal reflection surfaces in turn and projects the image bearing light through the exit surface so as thereby to project an image on a remote screen.

REFERENCES:
patent: 4634223 (1987-01-01), Ishii
patent: 6178048 (2001-01-01), Togino et al.
patent: 6268963 (2001-07-01), Akiyama
patent: 6850370 (2005-02-01), Togino
patent: 6876390 (2005-04-01), Nagata
patent: 2002-40326 (2002-02-01), None
patent: 2002-55306 (2002-02-01), None
patent: 2003-29149 (2003-01-01), None

Affiliated with

Also associated with

Rating

Reflective optical system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reflective optical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflective optical system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3801686