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Products
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Aphotik
LL-13MA
Ultra Low Light CCD Camera
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Datasheet |
The
LL-13MA is an all solid state, low light camera capable of viewing images in starlight
(0.1mlux) conditions. The LL-13MA CCD imager uses a special
CCD that has on-chip elctron multiplication that precedes
the CCD output amplifier. This configuration therefore
suffers no light coupling inefficiency
or
artifact problems inherent in most
intensified low light cameras. Multiplication occurs
in a 400 stage CCD shift register
which can provide a gain of up to 1000:1, without
increasing noise. The EMCCD technology
has superior quantum efficiency and spectral
response and is more sensitive
and can detect single photon
events. |
| CCD
Imager |
Texas Instruments
TC247, frame interline transfer CCD with on-chip
electron multiplication |
| Resolution |
658
X 496 Active Pixels |
| Gain |
Automatic
or RS232 selectable up to 1000, using electron
multiplying impact
ionization process |
Sensitivity
|
0.1 mlux starlight illumination. Single photon
detection is possible |
| SNR |
75
dB |
| Quantum
Efficiency |
50% |
| Format |
1/2” with
10 micron square pixels |
| Active
Area |
6.58 mm X 4.96 mm |
| Full
Well Pixel |
28,000 e- |
| Video
Format |
Analog RS170 |
Computer
Interface
|
RS232—shutter
speed, Gain control, AGC-on/off, Iris control |
Shutter
speeds
|
1/60
seconds to 60 µs
in stepped increments |
| Sensor
Readout |
Interlace |
| Readout Speed |
12.5 MHz |
| Gamma |
1.0 |
| Frame Readout |
33 ms/frame (30 frames per second) |
| Synchronization |
Internal X-tal |
| CCD Temperature |
Solid state, two stage thermoelectric cooler (TEC) |
| Dark Current |
1.0pA/cm2, with TEC on |
| Lens Mount |
CS Mount |
| Power |
12V—24V, 5.0 W (with ambient temperature of
77º F), 11 W (with ambient
temperature of 120º F) |
| Housing |
All
metal enclosure measuring 4.0” X 4.0” X
2.5” |
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Key Features
• VGA
resolution of the CCD imager
• Extended dynamic range of full daylight to dark starlight imaging
• 500:1 Anti blooming mechanism
• Superior intrascene dynamic range
• RS170 analog output
• RS232 camera control
• 12 to 24 volt universal power input
•
Small size—4.0” x 4.0” x 2.5” |
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