Mitsubishi Electric KD Series User Manual page 18

2-1 What's Contact Image Sensor
【 Perspective view 】
【 Cross-section 】
Cover-glass
Frame
TM-XG537C
LED-frame LED-frame
LED array board LED array board
White LED
Lens (GRIN lens Lens (GRIN lens * * ) )
Frame Frame
Sensor IC
Sensor board
Cover-glass
LED-frame
LED, LED array board
Lens (GRIN lens)
Sensor IC
Sensor board
Signal processing board
& Camera Link® interface
COPYRIGHT © 2020 MITSUBISHI ELECTRIC CORPORATION. ALL RIGHTS RESERVED.
This product (CIS : Contact Image Sensor) is a
scanning device that comprises several key-
components in below;
・ Sensor IC array in the length as same as scan width.
・ Rod lens array in the length as same as scan width.
・ Illumination in the length as same as scan width.
＊ GRIN lens : Gradient Index lens
The features of CIS can be compared to line
camera as follows;
CIS
① Resolution Fixed
Shallow
② Depth of focus
(±0.5～ 2mm)
③ Distortion Small
④ Light path Short (10～50mm)
⑤ Requested light
Small
intensity
⑥ Power
Small
consumption
⑦ light-sensitive
CMOS / CCD
element
⑧ Impacting and
Strong
vibration
⑨ Setup
Easy
adjustment
⑩ Outline Compact
Camera Link® is a registered trademark of AIA(Automated Imaging Association)
Optical reduction
system
Flexible
Deep
(～ 4mm）
Large
Long(～200mm)
Large
Large
CMOS/CCD
Weak
Need to be adjusted
with lens precisely.
Large
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