Hologram display item

Details Hologram display item Hologram display item

1995-09-25

1998-10-13

Dzerzynski, Paul M.

Optical: systems and elements

Holographic system or element

359 32, 362806, 362812, 362429, G03H 100, F21S 112

Patent

active

058220887

ABSTRACT:
A hologram display item comprising a hologram member having a front surface with a holographic image thereon and a rear surface. A light source assembly is also provided and is structurally connected to, and fixed relative to, the hologram, at a position to impinge light energy onto the holographic image. In this arrangement, the light source is fixed relative to the holographic image so as to provide, at all times, optimum viewing of the hologram by the observer independent of the position of the hologram display item relative to the position of the observer. The light source, fixed to the hologram display item, emits light energy substantially from a point within the light source at a predetermined angle advantageous for replay or viewing, the angle usually being similar to the known or discoverable angle of original hologram construction.

REFERENCES:
patent: 4940301 (1990-07-01), Sallai et al.
patent: 4947299 (1990-08-01), Liu
patent: 5455747 (1995-10-01), Aoyama
patent: 5571277 (1996-11-01), Allred et al.

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