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PRECISION VARIFOCAL MIRROR DESIGN
Varifocal mirrors dramatically improve the focus and level of energy
collected by the Pyro Sensor regardless of range. The electronic gain
of the detector is reduced and therefore the Signal to Noise ratio is
optimized to virtually eliminate false alarms. This design also
provides an improved freedom from false alarms with its unprecedented
level of immunity against visible light.
ASIC BASED SIGNAL PROCESSING
The ASIC signal processing implemented in the MR series allows the
detector to identify human movement with extreme accuracy, validate
intrusions and program itself to cope with harsh environmental
applications.
EXCEPTIONAL STABILITY AND VERSATILITY
The MR series offers an unparalleled detection capability and stability
for every security installation. It includes various models adapted to
each type of installation, from the smallest device for curtain pattern
protection to the most sophisticated sensors with Double PIR and
Microwave, Pet Immunity, AntiMasking capabilities and more.
EASY AND FAST INSTALLATION
Installation height of the MR detectors is calibration free. Optional
masks for pet immunity allow the installer to customize the detector
according to application requirements. Masks exist for 10,20,30 and 40
Kg pet immunity (22,44,66, or 88 lbs).
MR-22
 
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Unique Double Dual
element PIR and Double Mirror optics for superior catch performance in
harsh environments |
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Up to 30 Metre Detection
Range with long range mirror |
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ASIC based electronics |
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Automatic temperature
compensation |
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Pulse Count |
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Sensitivity Adjustment |
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Front cover captive
screw |
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8.2 - 16 Volts DC @
7.3mA |
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110mm x 87mm x 46mm |
ระบบ Mirror Optic ดีอย่างไร
"Crow’s
unique seven stage production process ensures the highest
quality optical standard mirrors are produced for their detectors"
1.
Precision laser cut mold is produced
2.
Micro polished thermally adjusted plastic base
3.
Base cleaned and etched ready for coating
4.
Base ‘fixer’ coating applied
5.
2 micron ‘filler’ coating applied
6.
5 micron chromium base coat applied
7.
10 micron chromium top coat applied
The
result of this is a Crow mirror of unequalled quality, accuracy
and image definition.
Twin
mirrors aligned in a horizontal plane provide True "Binocular
3D Vision".
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|
As
with humans, binocular vision is important in order to provide the
third dimensio |
Crow’s unique 3D Thermal imaging system…additional
infrared information is collected, that provides critical
information about the true size of the target"
 รูปแสดง Len แบบ double mirror optic ใน MR22
| 
GE-NX
Series Feature Comparision (86KB PDF) 