发明名称 |
METHOD OF MANUFACTURING A LIGHT GUIDING PANEL AND AN APPARATUS FOR THE SAME, AND A PARTICLE BLASTING APPARATUS FOR MANUFACTURING THE LIGHT GUIDING PANEL |
摘要 |
Disclosed are a method of manufacturing a light guiding panel by means of carving fine engravings on a surface of a transparent substrate by plasting fine particles and an apparatus for the same. A distributed degree of the engravings gradually increases as they become far away from a light source position. In a first method, fine particles are mixed with a high-speed air and then the air-mixed fine particles are diffusively blasted through one or more blasting nozzles so that the fine particles can collide with a surface of a transparent substrate slantly. In a second method, the air-mixed fine particles are diffusively blasted through a plurality of aligned blasting nozzles so that the fine particles can perpendicularly collide with the entire width of a transparent substrate, while appropriately adjusting intervals of the blasting nozzles and/or the amount of blasting as well as swing the blasting nozzles. In a third method, fine particles are mixed with an air generated by a high-speed rotating blower and then the air-mixed fine particles are blasted through a flat funnel-shaped blasting pipe having an outlet of which the width is not narrower than that of the transparent substrate to perpendicularly collide with a transparent substrate. The cross-sectional shape of the outlet of the blasting pipe can be varied by a user's control. The blasting amount of the fine particles is constantly maintained with respect to time by means of a free fall feeding manner of the fine particles. The light guiding panel which has been so manufactured does not need a diffusion sheet and has a good brightness uniformity and a good light effectiveness. |
申请公布号 |
WO03083562(A1) |
申请公布日期 |
2003.10.09 |
申请号 |
WO2002KR02216 |
申请日期 |
2002.11.26 |
申请人 |
HUNATECH CO., LTD.;MYOUNG, BUMYOUNG |
发明人 |
MYOUNG, BUMYOUNG |
分类号 |
G02B6/00;B29C59/00;B29L7/00;B29L11/00;F21V8/00;G02F1/13;G02F1/13357 |
主分类号 |
G02B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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