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1999
Conference Paper
Titel
Integrating sphere diffuser for wireless infrared communication
Abstract
The application of an integrating sphere (IS) as a diffuser in a wireless infrared network is investigated. In order to obtain realistic data for the insertion loss, the transfer function and the far field light distribution, a random walk ray tracing model is used. As an example, a Spectralon(R) diffuser for a 155 Mbit/s 16-PPM IR transmitter is designed having a total efficiency of 86%, a cut-off frequency of 570 MHz and a nearly Lambertian intensity distribution. An additional target is used to create a more homogeneous far field without significant changes of the efficiency and the cut-off frequency.
Language
English
Tags
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optical elements
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optical loss
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optical transmitter
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ray tracing
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integrating-sphere diffuser
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wireless infrared communication
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infrared network
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insertion loss
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transfer function
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far-field light distribution
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random walk ray tracing model
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spectralon(r) diffuser
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ir transmitter
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efficiency
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cut-off frequency
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nearly lambertian intensity distribution
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homogeneous far field
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155 mbit/s
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86 percent
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570 mhz