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Optical Engineering

Variable Angle Of Incidence Spectrophotometer
Author(s): G. K. M. Thutupalli; M. J. Cyriac; G. Sudheendra; M. Malakondiah
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Paper Abstract

A new spectrophotometer to measure a wide variety of the optical properties of materials, such as unidirectional/bidirectional absolute reflectance and transmittance as a function of (a) wavelength, in the range of 0.3 to 2.0 um with a resolution of 0.005 um, (b) angle of incidence in the range of 3° to 65° with an accuracy of 0.5°,(c)state of polarization, 0°, 45°, and 90° of the incident light, has been designed and developed. It is demonstrated that these optical properties can be measured to an accuracy better than 1%. In addition, this multifunctional instrument is tailored to monitor the relative spectral signatures of living vegetation that has been grown under controlled conditions. These spectral signatures are useful for the effective interpretation of remotely sensed data obtained from aircraft and satellite borne instrumentation.

Paper Details

Date Published: 1 October 1983
PDF: 5 pages
Opt. Eng. 22(5) 225602 doi: 10.1117/12.7973204
Published in: Optical Engineering Volume 22, Issue 5
Show Author Affiliations
G. K. M. Thutupalli, ISRO Satellite Centre (India)
M. J. Cyriac, ISRO Satellite Centre (India)
G. Sudheendra, Central Machine Tool Institute (India)
M. Malakondiah, Central Machine Tool Institute (India)


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