FLIR Lepton 1.6 User Manual

FLIR LEPTON® Engineering Datasheet
The information contained herein does not contain technology as defined by the EAR, 15 CFR 772, is publicly available,
and therefore, not subject to EAR. NSR (6/14/2018).
Information on this page is subject to change without notice.
Lepton Engineering Datasheet, Document Number: 500-0659-00-09 Rev: 203
4
Table of Figures
Figure 1. Lepton with shutter Camera (with and without socket) .............................................................................8
Figure 2 - Lepton Architecture .................................................................................................................................. 11
Figure 3 - Lepton Detailed Block Diagram ................................................................................................................ 12
Figure 4 - Lepton Video Pipeline Block Diagram ...................................................................................................... 14
Figure 5 - State Diagram Showing Transitions among the Five Power States ........................................................ 16
Figure 6 - Lepton Power Sequencing ........................................................................................................................ 18
Figure 7 - Examples of Good Uniformity, Graininess, and Blotchiness ................................................................... 19
Figure 8 - FFC States .................................................................................................................................................. 21
Figure 9 - Relative Spatial Noise after FFC vs. Number of Integrated Frames ((defaults is 8) ............................... 22
Figure 10 - Hypothetical Illustration of Camera Output in counts vs. Camera Temperature in Radiometry-
enabled Mode ........................................................................................................................................................... 31
Figure 11 - Hypothetical Illustration of Camera Output vs. Camera Temperature in Radiometry-disabled Mode
................................................................................................................................................................................... 32
Figure 12 - Illustration of a Histogram for a 3x3 Pixel Area..................................................................................... 35
Figure 13 - Comparison of Linear AGC and Classic/Lepton Variant of Histogram Equalization ............................. 36
Figure 14 - Built-in Color Palette .............................................................................................................................. 38
Figure 15 - Comparison of an Identical Image with Grayscale and a False-color Palette ...................................... 39
Figure 16 - VoSPI Flexible Clock Rate ....................................................................................................................... 45
Figure 17 - VoSPI I/O ................................................................................................................................................. 45
Figure 18 - SPI Mode 3 (CPOL=1, CPHA=1) ............................................................................................................... 46
Figure 19 - SPI Bit Order (transmission of 0x8C08) .................................................................................................. 46
Figure 20 - Generic VoSPI Packet .............................................................................................................................. 47
Figure 21 - Video Packet ........................................................................................................................................... 48
Figure 22 - Discard Packet ......................................................................................................................................... 48
Figure 23 - Raw14 Mode: 1 video line per 160-byte payload .................................................................................. 49
Figure 24 - RGB888 Mode: 1 video line per 240-byte payload ................................................................................ 49
Figure 25 - Frame Counter for Successive 80x60 Frames ........................................................................................ 51
Figure 26 - Valid Frame Timing (no loss of synchronization) ................................................................................... 52
Figure 27 -Clock Too Slow - Failure to Read an Entire Frame Within the Frame Period ........................................ 53
Figure 28 - Intra-Frame Delay Too Long - Failure to Read Out an Entire Frame Before the Next is Available ...... 53

FLIR Lepton 1.6 Specifications

General

Brand	FLIR
Model	Lepton 1.6
Category	Control Unit
Language	English