Light coupling in TIR-based optical touch systems
作者： Håkan Bergström , Ola Wassvik
DOI:
关键词:
摘要: A touch-sensitive apparatus operates by light frustration (FTIR) and comprises a transmissive panel ( 1 ) that defines front surface 5 rear 6 ), emitter optically connected to the so as generate propagates total internal reflection inside panel, detector 3 receive propagating from emitter. The is VCSEL array including number of VCSELs 21 driven collectively form one emitter, coupling mechanism connecting configured give plurality in substantially same spread panel.
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