FLIR Lepton 3.5 - Thermal and Optical Considerations; Image Characteristics

FLIR LEPTON® Engineering Datasheet
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Lepton Engineering Datasheet, Document Number: 500-0659-00-09 Rev: 203
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6.3 Thermal Considerations
It is important to minimize any temperature gradient across the camera. The sensor should be mounted in such a
fashion so as to isolate it from heat loads such as electronics, heaters, and non-symmetric external heating. The
surrounding area must be able to support and withstand the dissipation of up to 160 mW of heat by the camera.
6.4 Optical Considerations
The optical keep-out zone is described by the three-dimensional field of view cone within the Lepton with
Radiometry STEP file. To avoid mechanical vignetting, do not impinge upon the keep-out zone defined by this
cone.
7 Image Characteristics
The information given in Table 13 applies across the full operating temperature range.
Table 13 - Image Characteristics
Parameter
Description
Value
NETD
Noise Equivalent Temperature Difference (random
temporal noise)
<50 mK, radiometry mode
(35 mK typical)
Intra-scene
Range
Minimum and maximum scene temperature
High Gain Mode: -10°C to
140°C, typical
1
Low Gain Mode: -10°C to
450°C, typical
1
Operability
Number of non-defective pixels
>99.0%
Clusters
Number of adjacent defective pixels
“Adjacent” means any of the 8 nearest neighbors (or
nearest 5 for an edge pixel, nearest 3 for a corner).
No clusters allowed.
Note(s)
1. Scene dynamic range is a function of sensor characteristics and ambient temperature. Range values reported are typical values at
room temperature ambient. See Table 1- Key Specifications for details.
2. Only single-pixel defects are allowed (no clusters).