Dalsa Pantera DS-21-01M60, Руководство пользователя и справочник

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36 Pantera 1M60 and 1M30 User’s Manual
DALSA 03-032-10033-09
4.2 Lens Mounts
All F-mount adapters have the appropriate back focal distance for the lens type being
used. Ensure that the image circle diameter of the lens to be used is as great as the length
of the imaging region. The following table provides information regarding the lens mount
used and the back focal distance. The M42 lens adapter originated from the high-end
photography standard. Distances to its inner flat surface and the outer flat surface are
provided.
Table 14: Lens Mounts
Mount Back Focal Distance (sensor die to adapter)
M42 6.56 ± 0.35mm — outer flat surface
4.3 Mounting the Camera
The Pantera 1M60 and 1M30 can be mounted via the 3/8” deep, 1/4”-20 threaded tripod
mount located on the bottom of the camera.
4.4 Thermal Management
For any CCD camera optimal performance is achieved by transferring heat away from the
sensor. Keeping a sensor “cool” reduces the amount of dark current generated. Dark
current is the leading contributor to FPN, PRNU, dark offset, random noise and other
performance specifications, especially when a camera is significantly gained (i.e. +10db).
Generally, dark current doubles for every 7°C increase in temperature at the sensor and
increases linearly with integration time.
The Pantera 1M60 and 1M30 mechanicals have been optimized to transfer heat from the
sensor to the front of the housing. Mount fans away from the camera to avoid vibration,
and direct the airflow across the housing to decrease the temperature delta between
ambient and housing temperatures. Convection is the ideal method to minimize camera
warm-up times and reduce dark current generation. Both methods: either conduction
through heat sinking, or convection through air flow, greatly reduce dark current and
will improve you systems performance.
4.5 Environment
The camera and cables should be shielded from environmental noise sources for best
operation. The camera should also be kept as cool as possible. The specified operating
temperature is 0–40°C measured at the top of the camera.