Flir ThermovisionPathFindIR LE User Manual

334-0001-00-10-LE, rev. 100 May ’0815
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6 Technical Data
6.1 Performance Specification
Thermal Imaging Performance
Sensor type Uncooled microbolometer
Field of view 36° h x 27° v
Spectral band 8 - 14 μ
Resolution 320 x 240 pixels
Time to Image  < 2 sec.
Focal Length  19 millimeters
Outputs
Video NTSC or PAL
Connector types 12-pin automotive connector for power in, video 
out
Frame Rate
Note: Hz is equivalent 
to frames per second30-Hz for NTSC Video, 25 Hz for PAL video
< 9 Hz Export Compliant 
Power...

6 – Technical Data
16May ’08 334-0001-00-10-LE, rev. 1006 – Technical Data
6.1.1 Side View 

334-0001-00-10-LE, rev. 100 May ’0817
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6 – Technical Data6 – Technical Data
6.1.2 Side View, Additional Dimensions 

6 – Technical Data
18May ’08 334-0001-00-10-LE, rev. 1006 – Technical Data
6.1.3 Front View 

334-0001-00-10-LE, rev. 100 May ’0819
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7 Installation
7.1 PathFindIR LE Installation
The PathFindIR LE is a compact, sealed imaging system that fits easily 
behind vehicle grilles and in other compact locations. It includes an 
internal heater to keep the lens clear in icy conditions, and delivers 
superior image quality. It can be ordered as a camera module with a 
commercial grade cable.
The PathFindIR LE must be mounted in a location where it is not 
obstructed by the windshield or other glass...

7 – Installation
20May ’08 334-0001-00-10-LE, rev. 1007 – Installation
7.3 Installation
Installation using incorrect connections may result in system malfunction 
or risk of shock. FLIR Systems, Inc. recommends the standard 20-foot 
cable for proper installation (refer to Chapter 5.1 “Accessories” on page 5-
13). This cable is sealed and provides two power input leads and video 
output via the connected BNC adapter. 
The proper mating connector must be used when installing the PathFindIR 
LE. The use of...

334-0001-00-10-LE, rev. 100 May ’0821
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7 – Installation7 – Installation
Disconnect the negative (-) battery terminal prior to installation.
Connect the unit to the vehicle power distribution block using an available 
fused (2 amp) connection. Be sure to connect each lead to the correct 
polarity (red-positive and black-negative).
Be sure to securely mount the system to assure reliable connections and 
stable system performance.
Record the serial number, date of purchase, location of purchase and keep...

7 – Installation
22May ’08 334-0001-00-10-LE, rev. 1007 – Installation
FLIR Systems Inc. is not liable for any modifications made to the vehicle's 
body, or aftermarket parts. Owner assumes all risk when modifying 
vehicles body, frame, grill, or any other structure. Care should be taken 
when drilling or cutting into parts. Contact your vehicle manufacture to 
assure that the mounting location does not affect the performance, 
operation, or safety features of your vehicle.
Mounting should be...

334-0001-00-10-LE, rev. 100 May ’0823
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8 Infrared Technology
8.1  History of Infrared
Less than 200 years ago the existence of the infrared portion of the 
electromagnetic spectrum wasn't even suspected. The original significance 
of the infrared spectrum, or simply ‘the infrared’ as it is often called, as a 
form of heat radiation is perhaps less obvious today than it was at the time 
of its discovery by Herschel in 1800. 
Figure 8-1: Sir William Herschel (1738–1822)
The discovery was made...

8 – Infrared Technology
24May ’08 334-0001-00-10-LE, rev. 1008 – Infrared Technology
As the blackened thermometer was moved slowly along the colors of the 
spectrum, the temperature readings showed a steady increase from the 
violet end to the red end. This was not entirely unexpected, since the 
Italian researcher, Landriani, in a similar experiment in 1777 had 
observed much the same effect. It was Herschel, however, who was the 
first to recognize that there must be a point where the heating effect...