Optical switch keyboard
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专利名称：Optical switch keyboard
发明人：Chung-Yuan Chen
申请号：US15157186
申请日：20160517
公开号：US09634661B1
公开日：
20170425
专利内容由知识产权出版社提供
专利附图：
摘要：An optical switch keyboard includes a circuit module and plural keys. The circuit module includes a circuit board, plural light emitters, plural light receivers and plural light sources. Each key corresponds to a light emitter, a light receiver and a light source.The plural light emitters and the plural light receivers are disposed under the circuit
board. Consequently, the plural light emitters and the plural light receivers are not interfered by the ambient light that comes from the top side of the circuit board. In case that the light sources are disposed over the circuit board, the light beams from the light sources are transmitted upwardly through light-transmissible triggering elements of the corresponding keys and projected to the keycaps. Consequently, a visual effect is generated.
申请人：Primax Electronics Ltd.
地址：Neihu, Taipei TW
国籍：TW
代理机构：Kirton McConkie
代理人：Evan R. Witt
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