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公开(公告)号：US4317060A
公开(公告)日：1982-02-23
申请号：US86564
申请日：1979-10-19
CPC分类号： H01K1/18
摘要： Bowl mirrored lamps according to the invention have a filament which is arranged asymmetrically with respect to the axis of the lamp envelope and surrounds the axis over an angle greater than 180.degree. in such a manner that it does not coincide at any point with the image of the filament formed by the mirrored bowl portion of the lamp envelope.As a result of this filament positioning the lamp can in combination with a reflector provide a light beam having a very high central intensity.
摘要翻译： 根据本发明的碗镜子灯具有相对于灯壳的轴线非对称布置的灯丝，并且以大于180度的角度围绕轴线，使得它不会与任何点与图像 由灯壳的镜面的碗部形成的灯丝。 作为这种灯丝定位的结果，灯可以与反射器组合提供具有非常高的中心强度的光束。
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公开(公告)号：US4311940A
公开(公告)日：1982-01-19
申请号：US118167
申请日：1980-02-04
摘要： In electric incandescent lamps the efficiency can be increased by surrounding the filament with a light-pervious, infra-red radiation-reflecting filter. It has hitherto always been assumed that the geometry of the filter and that of the filament should be well matched to each other. This, however, results in a complex filament construction.According to the invention, near the center of a spherical filter, a flat filament consisting of several parts is accommodated, being situated within a square the sides of which are from 0.25 to 0.04 times the diameter of the filter. Such a filament has a relatively simple construction and provides a highly efficient lamp despite the fact that its geometry is very different from that of the filter.
摘要翻译： 在电白炽灯中，通过用透光的红外辐射反射滤光片围绕灯丝可以提高效率。 迄今为止总是假设过滤器的几何形状和灯丝的几何形状应该彼此良好地匹配。 然而，这导致了复杂的灯丝结构。 根据本发明，在球形过滤器的中心附近，容纳由多个部件组成的扁平细丝，位于正方形内，其侧面是过滤器直径的0.25至0.04倍。 尽管其几何形状与过滤器的几何形状非常不同，但是这种灯丝具有相对简单的结构并提供了高效率的灯。
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