Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2008-06-05
2009-06-23
Pyo, Kevin (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S239000, C340S555000
Reexamination Certificate
active
07550708
ABSTRACT:
A purpose of the present invention is to provide a photoelectric sensor and an emitting device for a photoelectric sensor which can improve resistance to liquids. A purpose of the present invention is also to provide a photoelectric sensor and an emitting device for a photoelectric sensor which can improve productivity.According to the present invention, a main casing is described in which a plurality of photoelectric elements are included along a first direction; a first opening formed on the main casing for passing through a light corresponding to the photoelectric element between the inside and outside of the main casing; a transparent plate affixed on a pair of first surfaces of the main casing so as to cover the first opening, for passing through the light between the inside and outside of the main casing; a first adhesive member disposed between the transparent plate and the pair of first surfaces, for affixing the transparent plate on the pair of first surfaces; a pair of projections formed on the main casing along the first direction, outstanding along to an optical axis of the light, and disposed apart from each other whereby the transparent plate is accessible from the outside of the main casing to the pair of first surfaces; a pair of channels formed on the main casing along the first direction and between the pair of first surfaces and the pair of projections of the main casing; and a pair of first pressing members fixed in the pair of channels and contacting an opposite side of the surface where the transparent plate is located, for pressing the transparent plate to the main casing.
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Keyence Corporation
Kilyk & Bowersox P.L.L.C.
Pyo Kevin
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