Text ( visual ) : unmediated Applications of Infrared Technology : 9-10 June 1988, London, England / T.L. Williams, editor ; organised by Sira Limited ; cosponsored by SPIE--the International Society for Optical Engineering (USA), the Institution of Production Engineers (UK). -- Bellingham, Wash., USA : SPIE , c1988. -- vi, 149 p. : ill. ; 28 cm. -- (Proceedings / SPIE -- the International Society for Optical Engineering ; v. 918). -- Includes bibliographies and index. -- ISBN 0892529539 ; (BA07915281) ; https://ci.nii.ac.jp/ncid/BA07915281 Author Heading(s): Williams, T. L. ; Sira Limited. -- Classification(s): LCC : TA1570 ; DC20 : 621.36/2. -- Subject Heading(s): LCSH : Infrared technology -- Congresses