LUMINAIRE WITH CIRCADIAN RHYTHM CONTROL FUNCTION

摘要

A lighting fixture having bio rhythm control function is provided to facilitate production and adjustment of melatonin by directly mounting a light source to the bottom part of a backlight unit. A lighting fixture having bio rhythm control function comprises a backlight unit(30), a frame and a main body. The backlight unit comprises first and second light sources(307,307'). In the backlight unit, a protection sheet(301), prism sheets, a diffuse sheet(304) and a reflective sheet(306) are successively laminated. The prism sheet comprises a first prism sheet(302) and a second prism sheet(303). The first prism sheet and the second prism sheet meet at right angle. The frame surrounds the circumference of the backlight unit. The main body accommodates the backlight unit. The main body comprises a plurality of control buttons and a power source. The first light source is arranged in each side of the backlight unit. The second light source is arranged between the diffuse sheet and the reflective sheet.