Ana lo g Line Sc a n Ca m e ra
Description (cont.)
Figure 1a: Spectral Sensitivity Curve (Min. Gain)
applications include lumber processing,
parcel scanning, non-contact measure-
ment, document scanning, dimensional
gauging, biomedical imaging, bar code
scanning and many other industrial
and scientific applications.
100
90
100
90
80
70
60
50
40
30
20
10
0
Right Scale
80
The Sensor
70
60
50
40
The LC3000-series cameras contain
a high-performance, high-resolution
line scan image sensor (PerkinElmer
Optoelectronics parts RL0512PAG,
RL1024PAG, or RL2048PAG) featuring
a pinned photodiode pixel. Each
photodiode converts incident light into
discrete charge packets. Advantages of
pinned photodiode pixels include lin-
ear exposure control, the elimination
of image lag, and the reduction of
photo response non-uniformity (PRNU).
For more specific sensor specifications
and information, please consult the
appropriate sensor datasheet. Figure 1a
details the spectral sensitivity of the
sensor, while Figure 1b details the
sensor’s glass window light trans-
mission curve.
Left Scale
30
20
10
0
250
350
450
550
650
750
850
950
1050
Wavelength (nm)
Functional Description
Figure 1b: Sensor Window Transmission Curve
The video signal from the sensor is
processed through a single channel of
sampled-and-held, raster order, analog
video data. The video channel signal
processing circuitry offers both
adjustable gain and offset levels to
allow customization of the camera to
unique lighting applications. An
operational amplifier in a differential
configuration is recommended to
receive the video signal. Figure 2
details the camera video processing.
100
90
80
70
60
50
40
30
20
10
0
150
250
350
450
550
650
750
850
950
1050
Wavelength (nm)
Operating Modes
The LC3000-series cameras can be
operated in one of two different modes:
Master Mode and Slave Mode. Master
mode is to be used when the LC3000-
series camera is operating as a stand-
alone unit. Master mode requires
only input DC power (12-24 VDC) for
operation. In this mode of operation,
the camera will operate at its basic
clock frequency (defined by the model
number) and at the maximum line rate.
Master mode operation is selected
using the bank of rear-camera located
Table 1. Master/Slave Mode DIP-switch Settings
DIP Switch #1 Setting
DIP Switch #2 Setting
Operating Mode
ON
OFF
OFF
ON
ON
OFF
ON
Master Mode
Slave Mode
Alternate Slave 1
Alternate Slave 2
OFF
w w w . p e r k in e lm e r . c o m / o p t o
DSP-201.01D - 4/2002 Page 2
PERKINELMER [ PERKINELMER OPTOELECTRONICS ]
