| 摘要 |
Apparatus for light therapy includes an outer tube case (11) with a first end (12) and a second end (13), an inner angular tube case (21) embedded in the outer case (11) and including an input end (22) with a light source (26) and a reflector (27), the input end (22) extending to the first end (12) of the outer case (11), a middle section (29) with Brewster polarizer parallel glass plates (24) forming a part of the wall (25) of the middle section (29), and the output end (23) extending into the second end (13) of the outer case (11), and a cooling fan (31, 32) embedded in the outer case (11) for the cooling of the reflector and of the polarization plates (24) of the inner case (21) according to the invention, whereas a transition section of the wall (15) of the outer case (11) between the first end (12) and the second end (13) of the outer case (11) is provided with a hole (14) interconnected with the open first end (12) of the outer case (11) for passage of cooling air. With advantage a sealing partition (33) with a slot (34) having adjustable flow cross-section is arranged between the second end (13) of the outer case (11) and the output end (23) of the inner case (21). With advantage a ventilating duct (16) is connected to the hole (14), the ventilating duct (16) forming with the first end (12) of the outer case (11) and with the second end (13) of the outer case (11) a tube-like body in the form of star, whereas a cooling fan (31) is arranged in the ventilation duct (16). |
