1. convex mirrors. Is the incident radiation and rangsisathon glass on the side to the center of curvature?2. mirror, concave mirror that radiation falls and rangsisathon are in the same side, the center of curvature.3 embossed glass diffuser glass. If the radiation incident parallel to the axis of the light rays is important to widen out the porch or spread out the light rays reflected by parallel direction as coming from the focal point of convex mirrors.4. mirrors concave mirror lighting If, in parallel with the axis of the incident radiation Pearl key. The radiation reflected from the mirrors will track to the point one point called the focal point.
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