Tenum® 640

High-performance ten micron pixel pitch LWIR

The Tenum 640 represents the smallest pixel pitch long-wave infrared camera core on the market. It delivers striking detail and sensitivity in a compact, cost-effective package.


The Tenum 640 is a cutting-edge, competitively-priced camera core that delivers exceptional imagery and is supported by a respected team of industry experts.

With a 10 micron pixel pitch and <30 mK NETD sensitivity, the Tenum 640 represents the latest evolution in low SWaP long-wave infrared technology. Made in the USA by Leonardo DRS, industry pioneers in high-sensitivity microbolometer technology, the series of 640x512 resolution cameras is distributed and supported in North America exclusively by Sierra-Olympic Technologies, Inc. As a trusted supplier and OEM partner, Sierra-Olympic works directly with Tenum 640 customers to ensure successful systems integration, out-of-box operation, and follow-up support.

Product Highlights

Full user support from Sierra-Olympic Technologies, Inc.

High-performance, cost-effective LWIR infrared camera core

Smallest pixel pitch LWIR available

60 Hz frame rate, 9 Hz option available

8 lens models + no-lens option available

Compact, light, durable, versatile



Lens EFL/F# FOV (H° x V°) Weight (g) LxWxH (mm)
NO LENS No Lens 29g 31.3 x 28.8 x 27.2mm
4.3mm, F/1.2 90° x 72° 41g 31.3 x 28.8 x 33.7mm
5.5mm, F/1.2 70° x 56° 42g 31.3 x 28.8 x 33.7mm
7.7mm, F/1.3 49° x 40° 39g 31.3 x 28.8 x 34.2mm
9.3mm, F/1.3 40° x 32° 46g 31.3 x 28.8 x 30.0mm
15mm, F/1.2 25° x 20° 45g 31.3 x 28.8 x 41.0mm
20mm, F/1.2 18° x 15° 48g 31.3 x 28.8 x 43.2mm
30mm, F/1.3 12° x 10° 84g 31.3 x 32.0 x 43.7mm
35mm, F/1.2 10° x 8° 129g 31.3 x 45.0 x 57.2mm


Detector type
Uncooled VOx Microbolometer
Pixel Pitch
10 micron
Spectral response (approx)
8 – 14 micron
Sensitivity (NETD)
<60 mK
Sensitivity w/ 3-D noise filter
<30 mK
Frame Rate
60 Hz (9 Hz available)
Analog Video Output
NTSC/PAL (requires feature board)
Digital Video Output
14/8-bit LVCMOS or Camera Link®
Digital Zoom / Pan
Region of Interest; E-zoom from 1X - 4X
Non-uniformity Correction
1-point with shutter or through lens
First Time to image
< 3.0 seconds
Command Interfaces
UART/RS-232; USB 2.0
Image Enhancement
Image Contrast Enhancement (ICE™) with gain and level bias controls
External Sync
24-bit RGB and YUV (4,2,2) Superframe
3-D noise filter
User option to enable < 30 mK NETd
Custom lens calibration (optional)
5 custom lenses / 5 operating temperatures
Operating Temperature
-40ºC to +70ºC
Shock / Vibration
75 G / 4.3 Grms
EMC Radiation
FCC Class A digital device
5% and 95%, non-condensing
Standards Compliance
Sealed lens / lens mount
IP 67
Input Voltage
3 - 5.5 V Base Configuration 4.5 - 18 V
Power Dissipation (nominal)
< 1.2 W Base Configuration / < 1.4 W
Power over USB
Requires Feature Board


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