ABOUT US

Sensors Unlimited Inc – A part of Collins Aerospace

Sensors Unlimited is a major supplier of Indium Gallium Arsenide (InGaAs) technology, products, and shortwave infrared (SWIR) imaging solutions. Their technology is used in applications such as security and surveillance, military, machine vision, photovoltaics, medical, spectroscopy, semiconductor inspection, instrumentation, thermography, and telecommunications. 

Sensors Unlimited has continued to push InGaAs technology forward, today producing not just single point light sensing diodes, but InGaAs one-dimensional linear arrays and two-dimensional focal plane array cameras.

SWIR Area Cameras
Sensors Unlimited offers a variety of compact, highly sensitive SWIR area cameras that are well suited for applications that require real-time daylight to low-light imaging in wavelengths ranging from 0.4um to 1.7um. Resolutions up to 1.3MP and multi-mode laser tracking and decoding products are available.

Linescan Cameras
SUI’s Linescan cameras deliver line capture rates up 147,000 lines per second for a wide range of applications including Optical Coherence Tomography, Machine Vision for inspection, sorting and / or monitoring of continuous processes and inspection of silicon wafers and through polished silicon blocks.

Linear Photodiode Arrays

SUI products are available with cut-off wavelengths of 1.45, 1.7, 2.2 or 2.6 microns. All sensors exhibit reduced dark current and improved uniformity. Array lengths of 256, 512, or 1024 pixels, with widths of 1/4, 1/2, or 1 inch are available with antiblooming to prevent charge overflow from saturated pixels.

Soldier Handheld Systems

SUI Handheld systems provides distinct advantages over other available viewer technologies including visible (CMOS), thermal, and night vision (I2) systems. Battlefield laser aim points are easily identified through conditions that degrade other systems including haze, smoke and dust. The field-ready SPS+MMT provides high resolution video a and simultaneous tracking and decoding of 3 pulsed battlefield lasers day and night.

INDUSTRIES & APPLICATIONS

As the U.S. continues to increase its security at border crossings, airports, and other points of entry, biometrics will play an important role. SWIR cameras can help identify disguises at the border and therefore supplement security efforts.

Manufacturers of glass hollowware have long sought a way to pick out defective product at the hot end of their process, while the pieces are still above 200ºC. At that glass inspection stage, rejects are identified, then shunted aside and reprocessed efficiently, greatly reducing scrap.

Responding to the Global War on Terrorism (GWOT) has become the focus of U.S. Defense policy, and with that, the need for greater intelligence collection has moved upward in priority. Whereas past reconnaissance needs were more strategic in nature, today's needs are highly tactical, demanding a high level of persistence and the ability, in many cases, to identify individual humans in the field of interest. In recent years, the exceptional capabilities of short wave infrared (SWIR) technology have made SWIR the "Next Generation" of imaging technology for ground, airborne and space technology.

Innovative research and production of InGaAs material with high quantum efficiency (QE) and low dark current has made Sensors Unlimited a leading supplier of linear photodiode arrays for IR spectroscopy camera systems.

Contactless machine-vision inspection using photoluminescence (PL) imaging with shortwave infrared (SWIR) cameras can help solar cell producers improve both efficiency and quality of their photovoltaic products. Inspection of silicon bulk ingots, sliced wafers, processed layers, and complete photovoltaic cells is possible with SWIR imaging.

Multi-spectral electroluminescence and SWIR imaging can be used to separately inspect multi-junction uniformity and relative output.

By using the 1.05 µm central wavelength, instrumentation companies are now developing systems to image deeper through the retina into the blood vessel layer (called the choroid) to diagnose eye diseases and monitor treatment.

Flying a Sensors Unlimited 640HSX InGaAs SWIR camera, the GHGSat’s microSat circles the Earth every 90 minutes collecting infrared images. Data from the microSat will enable industries to monitor and quantify their own carbon dioxide and methane emissions to better manage and reduce their impact on air quality.

CONTACT INFORMATION

Sensors Unlimited – A part of Collins Aerospace

330 Carter Road, Suite 100

Princeton, NJ 08540-5914

UNITED STATES

Phone: 609-333-8200

Contact: Sales

VIDEOS

  • This video explains the Electromagnetic Spectrum with a deep dive into the infrared waveband. Sensors Unlimited is the world leader in the research and development of InGaAs technology.

  • Doug Malchow with Sensors Unlimited – A part of Collins Aerospace discusses SWIR imaging and why you should care about it. Watch the video for information on SWIR technology and how it can benefit your research – particularly where military, security, and industrial applications are concerned.

  • At DCS 2017, Doug Malchow took us through a presentation on when and why you should use SWIR (short-wave infrared) technology for imaging applications.

  • This year at Photonics West, Sensors Unlimited familiarized us with their export compliance guidelines for their line of cameras.

  • At SPIE’s DCS 2016 exhibition, Sensors Unlimited – A part of Collins Aerospace, Brendan Murphy, spent some time with Photonics Online to school us up on the three primary things one should consider before purchasing a SWIR imager — resolution, global availability, and cost.

DOWNLOADS

  • As the U.S. continues to increase its security at border crossings, airports, and other points of entry, biometrics will play an important role. SWIR cameras can help identify disguises at the border and therefore supplement security efforts.

  • By using the 1.05 µm central wavelength, instrumentation companies are now developing systems to image deeper through the retina into the blood vessel layer (called the choroid) to diagnose eye diseases and monitor treatment.

  • Innovative research and production of InGaAs material with high quantum efficiency (QE) and low dark current has made Sensors Unlimited a leading supplier of linear photodiode arrays for IR spectroscopy camera systems.

  • The Salt Lake City Valley in Utah sometimes experiences trapped air pollution in the atmosphere that severely reduces ground visibility. This article demonstrates the difference between using visible light and SWIR cameras to provide greater detail in imaging, even in challenging conditions.

  • Sensing in the shortwave infrared (SWIR) range (wavelengths from 0.9 to 1.7 microns) has been made practical by the development of indium gallium arsenide (InGaAs) sensors. This white paper covers the importance of using InGaAs technologies in SWIR applications.