Microscan HS-2D Uživatelský manuál Strana 38

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3-4 HS-21/HS-41X Handheld Reader User’s Manual
Dual Optics
The reader’s dual field optical system can read small 2D symbols as well as larger 1D
symbols. An image is captured from each field. The decoder first operates on the image
(Near or Far) which was successfully decoded on the last cycle. If unsuccessful, the next
image is decoded.
Move the reader closer to decode smaller symbols and farther away to decode larger symbols.
Imaging Area
The reader’s
optics are divided into Near Field and Far Field decode zones. Each decode
zone is 960 x 640 pixels.
Far Field
Near Field
960
640
640
(1280)
Field of View: 30° horiz. by 20° vert.
Focal Point: Approximately 100 mm
Field of View: 50° horiz. by 33.5° vert.
Focal Point: Approximately 115 mm
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