Operation displaying semiconductor switch

Details Operation displaying semiconductor switch Operation displaying semiconductor switch

1995-09-29

1997-07-08

Lee, John D.

Optical waveguides

With optical coupler

Switch

257 82, 385 92, G02B 635

Patent

active

056470347

ABSTRACT:
An operation displaying semiconductor switch includes an operation display lamp having such light emitting element as a light emitting diode and assembled in a package formed with an inner molded body of light transmitting synthetic resin and an outer molded body of non-light transmitting synthetic resin and externally enclosing the inner molded body, and light-emitting side and light-receiving side pattern conductors inner end parts of which are embedded in the inner molded body to oppose the light emitting diode and a light receiving element respectively mounted to the inner end parts of the conductors for optical coupling of both elements through the inner molded body. The operation display lamp coupled as electrically connected to the conductor is disposed partly within a lamp mounting recess of the inner molded body and is exposed at a light output surface out of the outer non-light transmitting molded body.

REFERENCES:
patent: 4712017 (1987-12-01), Kamasaki
patent: 4933729 (1990-06-01), Soejima et al.
patent: 5214495 (1993-05-01), Kitanishi
patent: 5245198 (1993-09-01), Kusuda et al.
patent: 5479288 (1995-12-01), Ishizuka et al.

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