Patent ID: 8981628
Filing Date: 2015-03-17
Classification: G02F,H01J

Abstract:
1. An ultra violet irradiating device for aligning liquid crystal, comprising: a water-cooling coaxial tube configured with an inter tube and an external pipe enveloping the internal pipe; a light tube disposed within the internal pipe; an infrared filter layer disposed between the internal and external pipes; and an ultra violet filter layer coated over an external surface of the external pipe so as to filter out an ultra violet light beam having wavelength lower than 320 nm; wherein the water-cooling coaxial tube further includes a first insulator separating the internal and external pipes; a second insulator separating the infrared filter layer within the internal and external pipes; a water inlet arranged on a first end of the coaxial tube, and located in the internal pipe, the external pipe or the first insulator; and a water outlet arranged on a second end of the coaxial tube and located in the internal pipe, the external pipe or the first insulator.