Molded relief hologram

Details Molded relief hologram Molded relief hologram

1993-11-10

1996-08-06

Yoon, Tae

Stock material or miscellaneous articles

Composite

Of quartz or glass

428500, 430 1, 430 2, 4302861, 523168, B32B 1706, C08F 700

Patent

active

055432280

ABSTRACT:
A holographic optical element or other similar molded article using glass as a substrate is improved in the adhesion between the glass substrate and a resin layer formed thereon so that neither peeling nor change of properties will occur. A holographic optical element (4) is adapted to generate interference fringes of the same pitch as that of tracks formed on a magnetic recording disk or repeated patterns formed on an encoder by interference between two light beams emerging from two different holographic lens regions. The holographic optical element (4) includes a glass substrate (3), a radiation-cured resin layer (2) having a hologram relief pattern on the surface thereof, and a silane coupling agent layer (5) provided between the glass substrate (3) and the radiation-cured resin layer (2).

REFERENCES:
patent: 4506953 (1985-03-01), Shimizu et al.
patent: 4677285 (1987-06-01), Taniguchi
patent: 4946533 (1990-08-01), Kushibiki et al.
patent: 5336585 (1994-08-01), Takahashi et al.

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