公开(公告)号：US5001609A

公开(公告)日：1991-03-19

申请号：US254349

申请日：1988-10-05

申请人： Robert C. Gardner ,  David E. Silverglate ,  Greg P. Smestad ,  George E. Smith ,  John F. Snyder

发明人： Robert C. Gardner ,  David E. Silverglate ,  Greg P. Smestad ,  George E. Smith ,  John F. Snyder

IPC分类号： F21S8/10 ,  F21V7/00 ,  F21V7/09 ,  G02B5/02 ,  H01L33/48 ,  H01L33/58 ,  H01L33/60 ,  H01L33/62

CPC分类号： G02B5/0221 ,  F21S48/215 ,  F21S48/218 ,  F21S48/2293 ,  F21S48/23 ,  F21V7/09 ,  G02B5/0231 ,  G02B5/0242 ,  G02B5/0278 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/48091 ,  H01L33/483 ,  H01L33/58 ,  Y10S362/80

摘要： The principles of non-imaging optics, rather than imaging optics, are used to provide a high power LED illumination lamp that has a specified limited viewing angle. A compound parabolic flux extractor extracts and concentrates light emitted by an LED chip and a light pipe continues the concentration into the specified viewing angle. A lens or a diffusant may be used to modify the light output of the lamp. A light constructed as an array of the lamps is suitable for use as an automobile external light such as a center high mounted stop light.

公开(公告)号：US5013144A

公开(公告)日：1991-05-07

申请号：US560489

申请日：1990-07-23

申请人： David E. Silverglate ,  Greg P. Smestad

发明人： David E. Silverglate ,  Greg P. Smestad

IPC分类号： G02B3/04 ,  G02B6/42 ,  H01L33/54 ,  H01S3/00 ,  H01S5/00 ,  H01S5/022

CPC分类号： H01L33/54 ,  G02B3/04 ,  G02B6/4204 ,  H01L2224/48091 ,  H01L2224/48463 ,  Y10S362/80

摘要： A lens for a light emitting diode (LED) lamp is formed as two ellipses rather than as one. The ellipses are axially symmetric and are translated away from the optical axis with each ellipse having a focus located on the LED chip away from the central bond pad so that the bond pad shadow does not decrease on-axis light intensity. In alternative embodiments, the depression located at the intersection of the two ellipses is flattened and the axes of the two ellipses are translated away from the optical axis and are also tilted.

摘要翻译： 用于发光二极管（LED）灯的透镜形成为两个椭圆而不是一个。 椭圆形轴向对称并且远离光轴平移，每个椭圆具有位于LED芯片上的焦点远离中心接合焊盘，使得接合焊盘阴影不降低轴上的光强度。 在替代实施例中，位于两个椭圆的相交处的凹陷被平坦化，并且两个椭圆的轴线从光轴平移并且也被倾斜。

公开(公告)号：US06429438B1

公开(公告)日：2002-08-06

申请号：US09351964

申请日：1999-07-12

申请人： Greg P. Smestad

发明人： Greg P. Smestad

IPC分类号： G01N2101

CPC分类号： A61L2/10 ,  C02F1/325 ,  C02F2201/3221 ,  C02F2201/326 ,  G01J1/429 ,  G01N2021/3155

摘要： An ultraviolet light detector for detecting levels of ultraviolet light in a liquid disinfection unit comprises two solid state silicon photodetectors. A first photodetector generates a photo-induced current proportional to the amount of visible, infra-red, and ultraviolet light emitted. A second photodetector generates a photo-induced current proportional to the amount of visible and infrared light emitted. The photodetectors are electrically connected in reverse parallel, generation an output current equal to the difference between the photo-induced currents of the photodetectors. The output current is thus proportional to the UV light intensity. The output current may be converted into a voltage, which may be monitored to ensure that the ultraviolet light intensity is sufficient for complete disinfection of the liquid. An electronic control system may be provided so that the output voltage controls a solenoid valve and/or an alarm in the disinfection unit. In particular, the solenoid valve is configured to control the liquid flow through the disinfection unit, and the alarm may be activated to alert system attendants.

摘要翻译： 用于检测液体消毒单元中的紫外线水平的紫外光检测器包括两个固态硅光电检测器。 第一光电探测器产生与发出的可见光，红外线和紫外光的量成比例的光感应电流。 第二光电探测器产生与发射的可见光和红外光的量成比例的光感应电流。 光电检测器反向并联电连接，产生等于光电检测器的光感应电流之间的差的输出电流。 因此，输出电流与UV光强度成比例。 输出电流可以转换成电压，其可以被监测以确保紫外线强度足以完全消毒液体。 可以提供电子控制系统，使得输出电压控制消毒单元中的电磁阀和/或报警器。 特别地，电磁阀被配置为控制通过消毒单元的液体流动，并且可以启动警报以警告系统服务员。