The use of mobile phone influences the medical apparatus, and they discuss the use of mobile phone in the medical institution, in the train, etc. Because a mobile phone radiates an electromagnetic wave that influences electric equipment Optical wireless communication is safety for electric equipment because it doesn t produce any electromagnetic waves. Therefore we think it is suitable for wireless communication on these. places, and we need to propose optical wireless access system for these places. And if we examine the characteristic of optical wireless communication, it is important to analyze diffuse link as well as LOS link Analysis of characteristic by using Lambertian reflection surface in infrared wireless communication had been reported so far. But there are the reflection surfaces expect Lambertian model, for example glass or stainless. In this paper, we propose the concept of optica] wireless communication for these places, and we propose the models of reflection pattern for stainless or glass by numerical formula^ and we examine the characteristic for the concept by numerical simulation due to this formula.