Reflector system for fluorescent troffer

A fluorescent fixture lighting a surface used in combination with an axially elongated double tube fluorescent lamp having one and another ends, the tubes being positioned for separation within a plane encompassing the lamp axis and intersecting the surface to be lighted, a first and second group of opposed louvers positioned between the upper reflector system and the surface to be lighted, the first group of opposed louvers oriented generally perpendicularly relative to said second group of opposed louvers, said first and second groups of opposed louvers forming at least a pair of open cells, the lamp extending into each of the pair of open cells, the improvement comprising an upper reflector system in each of the open cells, including:

• a. a first reflector portion positioned adjacent the lamp and canted relative to the lamp axis to project light in the plane of the tubes toward one end of the lamp;
• b. a second reflector portion positioned adjacent the lamp and canted relative to the lamp axis to project light in the plane of the tubes, toward one end of the lamp;
• said first and second reflector portions being positioned to form a gap therebetween;
• the first and second groups of louvers lying between the surface to be lighted and said first and second reflector portions.

A fluorescent lighting unit for lighting a surface comprising:

• a. an axially elongated double tube lamp having one and another ends, said tubes being positioned for separation within a plane encompassing the lamp axis and intersecting the surface to be lighted,
• b. a pair of louvers extending substantially parallel to the lamp axis;
• c. a trio of louvers lying substantially perpendicularly to said first pair of louvers forming a pair of open cells through said lamp extends;
• d. an upper reflector system means for projecting substantial light emanating from said lamp along said lamp axis toward said one another lamp ends;
• said pair and trio of louvers lying between said upper reflector system means and the surface to be lighted.

An upper reflector system for a fluorescent fixture for lighting a surface utilizing an axially elongated double tube fluorescent lamp having one and another ends, the tubes being separated within a plane encompassing the lamp axis and intersecting the surface to be lighted, a first pair of opposed louvers below the lamp and a second pair of opposed louvers positioned transversely relative to said first pair of opposed louvers, said first and second pairs of louvers forming an open cell through which the lamp extends, the upper reflector system, comprising:

• a. a first reflector portion positioned adjacent the lamp and canted relative to the lamp axis to project light in a plane encompassing the lamp axis and intersecting the space to be lighted, and to project light generally toward one end of the lamp;
• and
• b. a second reflector portion positioned adjacent the lamp and canted relative to the lamp axis to project light in said plane encompassing the lamp axis and generally toward one end of the lamp;
• said first and second reflector portions also extending toward the opposed first and second pairs of spaced louvers, said second reflector portion extending further toward the first and second louvers than said first reflector.