Abstract

A new holographic technique has been used to make a compact, accurate, and reliable point-of-sale scanner. Our holo-window technique is capable of changing the scan direction, collecting the signal light, and equalizing the scan velocity. At present, compact scanners tend to sacrifice read operation accuracy, speed, and reliability for size. Our technique permits the miniaturization of the optical system of a scanner while preserving performance. Using the holo-window, we have developed a new scanner that has a letter-size footprint and is only 8 cm high.

© 1990 Optical Society of America

Shallow-type truncated symbol-reading point-of-sale hologram scanner

Hiroyuki Ikeda, Kozo Yamazaki, Fumio Yamagishi, Ichirou Sebata, and Takefumi Inagaki
Appl. Opt. 24(9) 1366-1370 (1985)

Aberration corrections for a POS hologram scanner

Hiroyuki Ikeda, Moritoshi Ando, and Takefumi Inagaki
Appl. Opt. 18(13) 2166-2170 (1979)

Holographic laser scanners using generalized zone plates

Yuzo Ono and Nobuo Nishida
Appl. Opt. 21(24) 4542-4548 (1982)

Holographic laser scanners for multidirectional scanning

Yuzo Ono and Nobuo Nishida
Appl. Opt. 22(14) 2128-2131 (1983)

Reflection volume holographic scanners with field-curvature corrections

Yukihiro Ishii
Appl. Opt. 22(22) 3491-3499 (1983)