AC Powered flash tube control circuit

Accidental flash prevention in a photographic flash device

Adjustable timing light

Anti-cycling control system for luminaires

Apparatus for controlling the charging of a main capacitor of a

Apparatus for controlling the charging of a main capacitor of a

Apparatus for decoding a DPCM encoded signal

Apparatus for dimming discharge lamp having electromagnetic regu

Apparatus to retrofit an HID light fixture

Arrangement for displaying operation of booster circuit for flas

Automatic correct exposure indicator

Automatic flash device

Back light device for liquid crystal displays

Backlight assembly and a display device having the same

Backlight unit and liquid crystal display device including...

Ballast adaptor for improving operation of fluorescent lamps

Ballast adaptor for improving operation of fluorescent lamps

Ballast circuit with lamp cathode protection and ballast...

Ballast circuit with means to disconnect power factor capacitor

Ballast circuits for gas discharge lamps