Abstract
Solid-state lighting and display technology are under rapid development. Photometric measurement devices such as imaging systems or tristimulus sensors encounter complex spatial, spectral and temporal conditions. Sufficiently large uniform calibration sources are required to adequately match the field application and to facilitate acceptable calibration uncertainties. We present a relatively compact, large-area uniform source employing plate diffusers and a patterned mask. The source is easily configured with colour-selectable, temperature-stabilized high power LED modules. We achieve 99% spatial uniformity within a 16 cm × 16 cm square field with Lambertian angular characteristics.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
