Squama-type reflection lamp and design method thereof

Abstract

The invention relates to a squama-type reflection lamp and a design method thereof. The lamp comprises a light source and a squama-type reflection cup, the light source is arranged on the right front position of an optic midpoint of the squama-type reflection cup, the squama-type reflection cup comprises a plurality of mirror surface units which are jointed through the following method: enabling the light source position, the optic midpoint of the squama-type reflection cup, a shape and the position of anticipated facula to be served as initial conditions, determining positions of mirror surface unit nodes passing through a meridian line according to the geometrical optic image-forming principle; iterating the positions of mirror surface unit nodes of other positions on the squama-type reflection cup by using the geometrical optic iteration principle according to the position of the mirror surface unit nodes on the meridian line, and determining positions of the mirror surface units. The lamp is good in lighting uniformity, can obtain sharp edges, and can conduct shape cutting according to requirements.

Description

technical field [0001] The invention relates to the field of lighting, and more specifically, to a scale reflective lamp and a design method thereof. Background technique [0002] In the lighting of lamps, there are often specific requirements for the light spot. For example, in the dental light, the dental light needs to be able to produce a rectangular light spot, so as to provide sufficient brightness of illumination without causing dazzling discomfort to the patient. Usually, the way to control the spot is to formulate a special scale-type reflective cup, so that the light source will produce the expected spot after being reflected by the scale-type reflective cup. [0003] The common scale reflective cups can be divided into two types: one is the scale reflective cup that is directly molded at one time according to the light distribution requirements, and the other is the scale reflective cup that is "combined" with the same lens. The scale-type reflective cup formed b...

AI Technical Summary

Problems solved by technology

The scale-type reflective cup formed by one-time demoulding can be adjusted during the model design, so its optical accuracy is high, but it needs to open a mold, the cost is high, and once the damage occurs, the entire scale-type reflective cup needs to be replaced; the other The multi-scale reflective cup is a "combination" of the same lens. Because the same lens is used for approximate splicing, the multi-scale reflective cup has a good uniformity of illumination and a large tolerance for assembly errors. Wide range of applications, but if the same lens combination is used for splicing, the resulting light spots will have poor edge sharpness and uniformity in the illuminated area

Images