| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem of luminance loss in a prior technical design caused by using an opaque and optically transparent cover. <P>SOLUTION: An energy-saving lamp shade with an even optical distribution has a lamp-shade main body 701 disposed on an upper side to support a light source, an optically transparent board 706 at the bottom, a light condenser and a curviform reflector 705 mounted inside the lamp-shade main body 701, and a reflective cone 707 mounted on the optically transparent board inside the lamp shade just below the light source. When the light source is controlled to emit the light, the light condenser condenses the light from the light source onto a reflective cone 707, the reflective cone 707 and the reflector 705 reflects the light, and therefore the light is evenly distributed inside the illuminated area without shaping a normal distribution (a Gaussian distribution) to avoid brightness. <P>COPYRIGHT: (C)2009,JPO&INPIT |
