Light source device, electronic blackboard system, and method of controlling light source device

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United States of America Patent

PATENT NO 10331274
APP PUB NO 20170228103A1
SERIAL NO

15502772

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Abstract

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A light source includes an invisible light emitter that emits an invisible light beam and a visible light emitter that emits a visible light beam. A light source controller causes the light source to emit at least one light beam from among the invisible light beam and the visible light beam. A propagation controller causes an emission light beam emitted from the light source to propagate along a predetermined plane.

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Patent Owner(s)

Patent OwnerAddress
SHARP NEC DISPLAY SOLUTIONS LTDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takahashi, Ryoji Tokyo, JP 29 202

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