AD-081CL
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6.
Advise on camera settings
6.1
Lens considerations
AD-081CL utilizes prism optics for separating the incident light onto the two CCDs. The camera
employs a C-mount for the lens but for high image quality it is strongly recommended to use
lenses specifically designed for 3-CCD cameras.
6.2
About capture boards
AD-081CL has two Camera Link connectors. In order to capture the signals from both
connectors, two frame grabber boards or a frame grabber board with two inputs are required.
As described in the chapter 7.1.2, the configuration for the outputs can be selected to utilize
only one connector. Therefore, it is still possible to capture images via a frame grabber board
that has only one input.
7.
Functions and operations
7.1
Basic functions
The AD-081CL utilizes prism optics to split the incident light onto two monochrome CCDs.
These two images, if captured with different exposure settings, can be combined in the PC to
create high dynamic range output. Alternatively, these two images can be read out in different
timing to achieve a faster frame rate.
The interface to the frame grabber board is Camera Link
TM
BASE configuration and two
connectors are used. Each connector provides 8/10 bit Monochrome signals. These signals can
be output in synchronous mode or separately.
The AD-081CL has continuous mode, pre-select trigger mode, pulse width trigger mode and PIV
(Particle Image Velocimetry) mode. In addition to full frame readout, 1/2, 1/4 and 1/8 partial
scan readouts and vertical binning are available.
The AD-081CL is equipped with automatic detection for LVAL sync or LVAL async mode.
7.1.1
2CCD optical assembly
The AD-081CL incorporates prism optics designed for light in the visible spectrum ranging from
400nm to 650nm wavelengths. 1/2 of the incident light is reflected by the Dichroic Mirror and
provides the input to Imager 2. The other half is transmitted through the prism and provides
the input to Imager 1.
The following conceptual diagram illustrates this process.
Fig 7. The conceptual diagram for 2CCD prism optics
Imager 1
( Transmitted )
Imager 2
(Reflected )
100
90
80
70
60
50
40
30
20
10
400
500
600
700
800
Wave Length ( nm )
Transmittance (%)
BW1 (Transmitted )
BW2 (Reflected )
