The Eyes of the Space Imaging Systems March 07, 2013 Sukhbir Kullar Senior Program Manager – Aerospace, Teledyne DALSA
Agenda • Brief Overview on Teledyne DALSA • Space Imaging Heritage • Multispectral Sensors • Hyperspectral Sensors
Teledyne DALSA at a Glance • Provider of high performance digital imaging and semiconductor solutions • Operations based in Canada, US and Netherlands • Sales and customer support offices in many countries • 1100 employees world-wide • Parent company is Teledyne Technologies Incorporated • Headquarters in Thousand Oaks, CA • Revenue of $2.1 billion in 2012
Digital Imaging Applications • Teledyne DALSA supplies Breakdown of Revenue digital imaging By End Market Application components for diverse applications • Machine vision / industrial inspection • Life sciences • Human Vision • Space imaging / Defense and Security
Wafer Foundry • CCD • 0.5um processes • High-voltage CMOS • World's leading "pure play" MEMS foundry • Manufacturing tiny mechanical devices used in game controllers, cell phones, and laptops
Moving Beyond the Visible Spectrum • Traditionally been a supplier of visible imaging components • Moving beyond visible light to provide components and systems that can capture x-ray and infrared images X-ray Visible Light Infrared Imaging Imaging Imaging
Vertically Integrated Supplier • We are the digital imaging industry’s only completely vertically integrated supplier, offering “Silicon to Smart Cameras” Smart Image Cameras Processing Frame Software Grabbers Digital Cameras Image Sensors Secure supply of silicon wafers
Heritage
Canadarm2 onboard ISS • Area scan camera and sensor • 2/3" 768H x 488V ILT CCD • Compact multi-PCB electronics module • Deployed in 2001
Mars Rovers Spirit and Opportunity – 2004 • Teledyne DALSA-built image sensor chips are the eyes of the Mars Twin Rovers • Nine 1K x 1K CCD image sensors • Joint development with JPL
Mars Rovers Curiosity – 2012 • Teledyne DALSA-built image sensor chips are responsible for navigation and hazard avoidance • 12 1K x 1K CCD image sensors • Five different Teledyne businesses contributed to the launch, landing, and operation of the Curiosity Rover
Photogrammetry • World’s leading supplier of wafer scale image sensors for photogrammetry • Customers include the leading photogrammetry camera OEMs who produce high-quality urban maps, large-scale ortho photos and stereo imagery for services such as Google Earth and Bing Maps • Imagers up to 250 million pixels
Astronomy • World’s first 100+ megapixel image sensor in 2006 • 10,560 x 10,560 pixels • Developed for Semiconductor Technology Associates for Astrometry Department of the U.S. Naval Observatory
MUSES onboard ISS Multi-User System for Earth Sensing • NASA awarded this contract to Teledyne Brown • An earth imaging platform designed to host high-resolution digital cameras • Teledyne will operate and maintain the system • Teledyne DALSA’s sensors are expected to be used in this instrument • Launch scheduled in early 2015
OSIRIS-REx Mission • An Asteroid sample return mission • Teledyne DALSA’s sensor will be used in three cameras – PolyCam, MapCam and SamCam • Flight model delivery in Q1’2014 • Launch scheduled in 2016 • Sample return in 2023
Image Sensors for Space • 20+ year space imaging heritage • 1993: World’s first 25M pixel image sensor • Business has quadrupled in past decade, totaling about 15% of Teledyne DALSA’s revenue • " ITAR free " solutions subject to Canadian export controls • Broad capabilities • CCD and CMOS, radiation tolerance • Linescan, TDI, and areascan • High resolution (up to wafer scale) • High speed (up to 100 million fps) • Backside thinning • Hyperspectral and Multispectral
Multispectral and Hyperspectral Sensors
Multispectral / Hyperspectral Comparison Multispectral Hyperspectral Used to discriminate features and patterns Used to identify and characterize materials A prism or grating is placed in Patterned filter coatings front of sensor for separating form part of the sensor different wavelengths Creates a hyperspectral data Creates a dataset with narrow bands over discrete cube with narrower bands frequency ranges over a continuous range Has discrete spectral Has continuous spectral bands (typically < 20) bands (typically 100s) Higher resolution and Lower resolution and much relatively smaller dataset larger dataset
Multispectral Sensors Image Sensor - Silicon • Monolithic • Compact design • Different pixel sizes for P and B Spectral zone B1 (20x20 µ m 2 ) zones I s o l a t i o n r o w s Spectral zone B2 (20x20 µ m 2 ) • TDI design for increased I s o l a t i o n r o w s sensitivity and throughput Spectral zone B3 (20x20 µ m 2 ) I s o l a t i o n r o w s • Special design & timing for Spectral zone B4 (20x20 µ m 2 ) I s o l a t i o n r o w s low crosstalk Spectral zone P (10x10 µ m 2 ) I s o l a t i o n r o w s • Designed to withstand harsh environmental conditions
Multispectral Sensors Filters • Patterned coatings deposited directly on the optical lid 100 90 80 70 Transmittance (%) 60 P 50 B4 40 B3 B2 30 B1 20 10 0 300 400 500 600 700 800 900 1000 1100 1200 Wavelength (nm)
Multispectral Sensors Max Data Rate MIL-STD Radiation Pixel Count Pixel Size (um) (MHz) Testing Testing (krad) P: 12k - 4k 7, 8.75, 10 6.25 - 33 Yes 20 - 30 3-4 B: 1k - 3k 17.5, 20, 28, 35 4-band, 4k MS CCD 5-band, 6k MS CCD 5-band, 12k MS CCD
Hyperspectral Sensors • A prism or grating placed in front of the sensor for separating different wavelengths • Separated wavelengths fall on different rows of the image sensor • Image sensor reads out the information for different wavelengths forming a hyperspectral data cube
Hyperspectral Sensors • Backside thinned for good QE • High frame rate (>300fps) • Fast transfer time (<250ns) • Very low smear (<1%) • Area scan architecture • Typically split frame transfer CCDs, also CMOS • Designed to withstand harsh environmental conditions
Summary • We offer multispectral, hyperspectral and other key image sensing capabilities with proven track record for space imaging applications • We continue to build on our space imaging heritage in Canada and around the world • We are a reliable provider of “ ITAR free ” space imaging solutions subject to Canadian export controls
Questions?
Recommend
More recommend