Document Type and Number:
Japanese Patent JPS6214875
Kind Code:
B2
Abstract:
A hand-held optical reading device, commonly called a wand, for reading a field of printed characters. The wand includes a light source for illuminating the printed characters, a photodiode array and a lens for collecting reflected light and forming an image on the diode array corresponding to the printed characters. Apertures are formed in the lower portion of the wand housing for projecting light from the light source onto the surface upon which the characters are printed. The projected light forms a pattern on the surface which is used for visually aligning the wand with respect to character field.
Inventors:
SAAJI ERU BURANKU
UIRIAMU AARU SUMISU
UIRIAMU AARU SUMISU
Application Number:
JP7573579A
Publication Date:
April 04, 1987
Filing Date:
June 18, 1979
Export Citation:
Assignee:
CAERE CORP
International Classes:
G06K7/10; G06V10/12; G06V10/24; G06V30/142
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