Aiming System; Aiming Error; Aiming Control; Illumination System - Motorola SE4710 Integration Manual

Aiming System

A 610 nm LED is used to generate a circular aiming pattern which indicates the center of the imager's field of view.

Aiming Error

The aiming pattern is rotated by 2º relative to the imaging axis in the horizontal plane to minimize parallax between
the aiming axis and the imaging axis at 195 mm (7.7 in.) from the engine. See
Aiming Element specifications.

Aiming Control

The SE4710 can capture images with both the aiming subsystem turned on during exposure (the image of the
aiming pattern is visible in the digital image) or off. If the aiming system is turned off during exposure, brightness of
the aiming pattern decreases as exposure increases.
The aiming subsystem can also be turned off completely. Motorola recommends shutting aiming off three frames
prior to capturing documents to prevent the aiming pattern from appearing faintly in captured images. Note that this
is not necessary for bar code decoding.

Illumination System

The illumination system consists of one red LED and a sophisticated drive system that allows image capture and
decoding throughout a full range of lighting conditions (total darkness to full sunlight).

Illumination Control

The SE4710 can capture images with the illumination subsystem turned on or off. LED illumination can be turned
off when taking images of documents printed on semi-glossy or glossy paper or on a substrate with security marks.
In this case, ensure ambient illumination provides a minimum of 30 fcd on the document surface. See also
Considerations on page

Frame Rate Control

The SE4710 outputs images at 30 frames per second by default. The SE4710 can also output images at 60 fps,
but at reduced frame size (640 x 400).
2-2.
Getting Started
LED Aiming Element on page 3-5
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Thermal