产品描述
IR CAMERA
The near infrared IR camera is designed for viewing, registration and records radiation emitted by infrared sources such as GaAs IR LED s, diode- or solid-state lasers as well as for use in infrared microscopy, infrared luminescence, examine documents, forensics, art restoration and etc. The camera is based on a high-sensitive low-noise silicon CCD sensor with the increased near infrared sensitivity.
SPECIFICATIONS
Spectral sensitivity 400…1700 nm
Sensor size 1/3 inches,6.0 mmx4.96 mm
Max. resolution 570 TV lines
Resolution at max. sensitivity 135 TV lines
Lens F1.4/26mm, CS-mount
Field of view 10 deg.
Focusing range 20 cm to inf. (8 cm to inf. with the distance ring)
Ratio signal-to-noise 48 Db
Gamma 0.45
Video output CCIR Standard composite video
Power supply DC 10…14V, 150mA
Temperature range 278-333K
Weight 0.23kg
Dimensions (50x58x90) mm
Temperatures range +5…+40 deg.C
Set includes: IR camera, distance ring, IR cut-off filter, manual, case.
The approximate minimal
power density of radiation on an object at the signal-to-noise ratio =10 (20dB) on a distance 10 cm:
300-500μW/cm2 at 1310nm
20-30mW/cm2 at 1550nm
80-100mW/cm2 at 1700nm
The silicon sensor has high sensitivity in the near-infrared spectrum
and at sufficient density of radiation power and thanks to two-photon absorption in silicon can be used for
visualization of infrared radiation with wavelength up to 1700 nanometers.
However thus the response of a sensor has square-law character and is of little
use for carrying out of measurements. Camera has four-stage system of automatic
gain. Exposition time depends from a level of light exposure within the range
from 10 μs up to 20 ms. At low light exposure, i.e. at the maximal sensitivity
of the camera time of an exposition makes 20 ms. The sensitivity of the camera
is increased automatically because of addition of pixels. But the resolution of
the camera is decreased.
The camera has the maximal sensitivity at the lowered external
illumination, when there are no the
external light hindrances decreasing the picture contrast and when the mode of
the increased sensitivity of the camera automatically is switched on.
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