Dan Scharpf |  Jeff Holt... -  《Earth Observing Systems XXIX》 -  Earth Observing Systems (conference) - 2024, - 1314307.1～1314307.16 - 共16页

摘要：A new solid-state source has been developed to emulate the solar spectrum for absolute radiometric calibration of advanced multispectral and hyperspectral imagers. The source is used in conjunction wi...

关键词： Solar simulator |  Hyperspectral |  LED calibration sources |  Imaging spectroscopy |  Uniform source |  Integrating sphere |  Spectral response |  Radiometric calibration

Jeffrey Holt |  Julia Barsi... -  《Earth Observing Systems XXIX》 -  Earth Observing Systems (conference) - 2024, - 1314306.1～1314306.17 - 共17页

摘要：Labsphere, Inc. in conjunction with NASA GSFC and Genesis Engineering Solutions Inc., has developed an innovative, vacuum compatible, calibration spectro-radiometric illumination source with a highly ...

关键词： Calibration |  Remote sensing |  Vacuum |  Tunable |  Radiometry |  Broad band |  Uniformity |  Satellite

Brandon Russella |  Dan Scharpf... -  《Earth Observing Systems XXVIII: At SPIE Optical Engineering + Applications.22-24 August 2023.San Diego, California, United States》 -  Earth Observing Systems (conference) - 2023, - 1268503.1～1268503.9 - 共9页

摘要：In partnership with Raytheon Intelligence & Space, Labsphere Inc. has been developing a technology demonstration system for a new type of on-board absolute radiometric calibration source. The Improved...

关键词： Radiometric calibration |  small satellite |  earth observation systems |  on-board satellite calibration |  Jones source |  Light Emitting Diodes |  blackbody

Greg McKee |  Dan Scharpf... -  《Light-Emitting Devices, Materials, and Applications XXVI: At SPIE BiOS.San Francisco, California, United States, 22-27 January 2022.Online, 20-24 February 2022》 -  Light-Emitting Devices, Materials, and Applications (conference) - 2022, - 1202207-1～1202207-8 - 共8页

摘要：Ultraviolet Germicidal Irradiation (UVGI) is a proven method of disinfection for both bacterial and viral pathogens. Since the acceleration of the COVID-19 pandemic caused by SARS-CoV-2, the industry ...

关键词： Sensors |  Head |  Diffusers |  Calibration |  Pathogens |  Radiometry |  Sensor calibration

NSTL主题词： Sensors |  Dose

Joe Jablonski |  Dan Scharpf... -  《Image sensing technologies :》 -  SPIE Conference on Image Sensing Technologies: Materials, Devices, Systems, and Applications - 2019, - 109800I-1～109800I-13 - 共13页

摘要：Uniformity from Lambertian optical sources such as integrating spheres is often trusted as absolute at levels of 98% (+/-1%) or greater levels. In the progression of today's sensors and imaging system...

关键词： Remote Sensing |  Uniformity |  Uncertainty |  Uniform Source |  Image Sensors |  Flat Field |  FPN |  Camera Calibration

NSTL主题词： Uncertainty |  nonuniformity |  Uniform |  Uniforms

Christopher Durell |  Dan Scharpf... -  《Sensors, systems, and next-generation satellites XIX: 19th Conference on sensors, systems, and next-generation satellites, 21–24 September 2015, Toulouse, France》 -  Conference on sensors, systems, and next-generation satellites - 2015, - 96391D.1～96391D.12 - 共12页

摘要：Sintered PTFE is an extremely stable, near-perfect Lambertian reflecting diffuser and calibration standard material that has been used by national labs, space, aerospace and commercial sectors for ove...

关键词： Bi-Directional Reflectance Distribution Function |  sintered PTFE BRDF |  BRF |  lambertian |  absolute calibration |  reflectance target |  reflectance standard |  ground truth |  vicarious calibration

NSTL主题词： creation |  Polytetrafluoroethylene |  Targets

DAN SCHARPF -  《Laser Focus World: The Magazine for the Photonics & Optoelectronics Industry》 - 2011,47(2) - 55～57 - 共3页

摘要：The performance of LEDs must be well characterized during production to ensure the devices meet end-user requirements across a range of operating parameters. The explosive growth of light-emitting dio...