초록 ▼

A lighting apparatus including a tubular light source and a member having a plurality of reflective surfaces which are angularly set such that light from the light source is reflected in a predetermined direction of a viewing angle by each of the reflective surfaces. A ratio of an apparent width of

A lighting apparatus including a tubular light source and a member having a plurality of reflective surfaces which are angularly set such that light from the light source is reflected in a predetermined direction of a viewing angle by each of the reflective surfaces. A ratio of an apparent width of each of the reflective surfaces to an apparent interval of adjacent ones of the reflective surfaces, when viewed from the predetermined direction of the viewing angle, is so set as to be a function of a distance between the light source and each of the reflective surfaces.

대표청구항 ▼

In a lighting apparatus including a tubular light source having a longitudinal axis and a member having a plurality of reflective surfaces for reflecting light from said light source, the improvement comprising: a plurality of other surfaces; said reflective surfaces being angularly arranged such th

In a lighting apparatus including a tubular light source having a longitudinal axis and a member having a plurality of reflective surfaces for reflecting light from said light source, the improvement comprising: a plurality of other surfaces; said reflective surfaces being angularly arranged such that between each said reflective surface a said other surface is provided, said reflective surfaces and said other surfaces alternating to form a continuous element of said member, said reflective surfaces having an adjacent other surface associated therewith to form a pair of surfaces, said reflective and other surfaces having a major dimension parallel to the longitudinal axis of the tubular light source, said reflective surfaces being arranged such that light from said light source is reflected in a predetermined direction by each of said reflective surfaces; and a passive display unit disposed in front of said member said display unit lying in a plane; each said pair of surfaces having an end-to-end distance measured along a selected parallel to said plane of said display unit; each of said reflective surfaces having an end-to-end width measured along said selected parallel to said plane of said display unit; a ratio of said end-to-end width of said reflective surfaces to said end-to-end distance being selected to be a function of a distance between said light source and each of said reflective surfaces.