Patents by Inventor Richard B. Eggers

Richard B. Eggers has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Incandescent bulb luminance matching LED circuit
    Patent number: 5929568
    Abstract: An incandescent bulb luminance matching LED circuit for causing the luminance of an LED to match the luminance of an incandescent bulb is disclosed. The incandescent bulb luminance matching LED circuit includes an input port (26, 56 or 82), an output port (28, 58 or 98), one or more light emitting diodes (22, 24, . . . or 88, 90 . . .), and a voltage (20 or 89) and/or current (50 or 86) compensation block. The compensation block(s) is connected in circuit with the light emitting diode(s) between the input port and the output port and compensates for voltage and/or current changes in the power applied to the input port such that the luminance of the LED is approximately the same as that of an incandescent bulb. In one embodiment, the compensation block comprises a zener diode (30) connected in series with the light emitting diode(s) (22, 24, . . .) between the input port (26) and the output port (28). In an alternate embodiment, the compensation block comprises one or more current diode(s) (60, 62, . . .
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: July 27, 1999
    Assignee: Korry Electronics Co.
    Inventor: Richard B. Eggers