发明名称 |
Photoelectric touch panel having parallel light emitting and detecting arrays separated by a light shield |
摘要 |
A photoelectric touch panel has light emitting and light sensing elements mounted on the same circuit board located at one side of the panel and a reflector is placed on an opposing side of the panel thus eliminating the need for a second circuit board at the opposing side.
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申请公布号 |
US4837430(A) |
申请公布日期 |
1989.06.06 |
申请号 |
US19870125736 |
申请日期 |
1987.11.30 |
申请人 |
ALPS ELECTRIC CO., LTD. |
发明人 |
HASEGAWA, KAZUO |
分类号 |
G06F3/042;G06F3/00;G06F3/033;G06K11/06;H03K17/78 |
主分类号 |
G06F3/042 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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