16
Lansis
®
System Manual
Issue 1
EAR99
Technology
Subject
to
Restrictions
Contained
on
the
Cover
Page.
Refer to
for information about each connector and indicator on the power
supply.
2.1.3
CCD Arrays
The Lansis camera system incorporates a back-illuminated, scientific-grade CCD to
ensure the highest image fidelity, resolution, and acquisition flexibility required for
scientific imaging. Large full wells, square pixels, and 100% fill factors provide high
dynamic range and excellent spatial resolution. Your choice of CCD is already installed
in the camera that you received and has been individually tested.
For complete specifications and information about the CCD used in Lansis cameras,
refer to
Table A-3, Lansis CCD Specifications
, on page 75.
2.1.4
Cooling
Dark current is reduced in Lansis camera systems by cooling the CCD array using
Teledyne Princeton Instruments’ exclusive ArcTec™ technology using air and/or
circulating coolant. To prevent condensation and contamination from occurring,
cameras cooled this way are evacuated. Refer to
, on page 76 for specific cooling information.
2.1.4.1
Internal Fan
The Lansis camera is equipped with an internal cooling fan that:
•
Removes heat from the Peltier device that cools the CCD array, and
•
Cools the electronics.
Teledyne Princeton Instruments ArcTec cooling technology cools Lansis’s CCD assisted
by air drawn into the camera by an internal fan mounted on the rear of the camera. The
circulating air then vents out through slots on the side panels. By default, the fan is
always in operation and air-cooling of both the CCD and the internal electronics occurs
continuously. In most cases, the low-vibration fan action does not adversely affect
image acquisition. However, in some applications, the fan’s vibration could reduce
image quality. In these instances, the internal fan can be disabled on the Sensor
Expander within LightField.
•
When Lansis is being air cooled (i.e., no external chiller is in use,) the internal fan
can be disabled for a brief period (i.e., a few seconds.) Sensors within Lansis
monitor its temperature and will reactivate the fan before temperatures within
the camera rise too much.
•
When Lansis is being cooled using an external chiller, the internal fan can be
safely disabled for a longer period. As with air cooled applications, internal
sensors monitor the temperature and will reactivate the fan if necessary.
For the fan to function properly, uninhibited air circulation must be maintained
between the sides of the camera and the laboratory atmosphere.
2.1.4.2
External Cooling Circulator
Lansis cameras equipped for liquid cooling can provide a low vibration system for data
acquisition when connected to a chiller. Any commercially available circulator can be
used provided it is capable of continuously pumping a 50:50 mixture of room
temperature (23
°C
) water and ethylene glycol antifreeze at 1 liter per minute. Refer to
Section A.5, External Chiller Specifications
, on page 78 for additional information. If
desired, contact Teledyne Princeton Instruments for additional recommendations.
Refer to
on page 100 for complete information.
