Patent ID: 7748885

Claim:
A lighting unit, comprising: a substantially box-configured reflector panel that is capped by a diffusion plate at a top opening of the reflector panel; the reflector panel includes a reflective inner bottom surface, a first, second, and a third lateral walls that are transversely and longitudinally flat and are perpendicular to the reflective inner bottom surface, and a lateral opening parallel with the third lateral wall with a pair of substrate holders at distal ends of the lateral opening; a first side of the lateral opening includes a first substrate holder of the pair of substrate holders that is integral with a first distal end of the first lateral wall; a second side of the lateral opening includes a second substrate holder of the pair of substrate holders integral with a second distal end of the second lateral wall; a plurality of substantially U-shaped cold cathode tubes held parallel relative to the reflector panel; an inverter substrate for supplying electricity to the cold cathode tubes; the inverter substrate is held vertically to the reflector panel and closes-off the lateral opening; inverter transformers mounted on the inverter substrate with lead wires from secondary winding sides arranged along the lower side of the inverter substrate that are held vertically to the reflector panel; cold cathode tube holders for holding the cold cathode tubes parallel relative to the reflector panel with terminals of the cold cathode tubes arranged in a row along one side of the reflector panel; a substrate holder for holding the inverter substrate that mounts the inverter transformers to be vertically relative to the reflector panel with a lower side of the inverter substrate reaching a position where the terminals are arranged in a row; a plurality of notches upwardly cut deep from the lower side of the inverter substrate that mounts the inverter transformers so as to receive the terminals; and solders provided for making electrical connections between the terminals and electrical supply patterns formed in the notches.