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首页> 外文期刊>Applied optics >Design of an aspherical lens to generate a homogenous irradiance for three-dimensional sensors with a light-emitting-diode source
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Design of an aspherical lens to generate a homogenous irradiance for three-dimensional sensors with a light-emitting-diode source

机译：非球面透镜的设计，可为带有发光二极管源的三维传感器产生均匀的辐照度

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摘要

A design of a large-numerical-aperture aspherical singlet for three-dimensional (3-D) sensor applications is presented. This lens can be used to generate a homogenous irradiance on the target in a 3-D sensor, which is based on the principle of time of flight and uses an LED as light source. A numerical method was used in the design. The designed planoaspherical singlet has a numerical aperture of 0.67, low refractive index, and moderate surface shape for easy fabrication. The simulation results revealed that the irradiance deviation within 97% of the designed area is less than 5% and that the transmittance of the lens is greater than 90.5%. The results from a Lambertian source were compared with those from a point source.
机译：提出了一种用于三维（3-D）传感器应用的大孔径非球面单线态设计。该透镜可用于根据飞行时间原理并使用LED作为光源的3-D传感器在目标上产生均匀的辐照度。设计中使用了数值方法。设计的平球单线态具有0.67的数值孔径，低折射率和适中的表面形状，易于制造。仿真结果表明，在设计面积的97％范围内的辐照度偏差小于5％，并且透镜的透射率大于90.5％。将朗伯来源的结果与点来源的结果进行了比较。

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