发明名称 |
OPTICAL WIRELESS RECEIVER |
摘要 |
PURPOSE:To facilitate assembling work with a simple adjustment for obtaining a desired light receiving performance by mounting an auxiliary lens for a wider angle of a light receiving range integral on the front of a photo detector of a light receiving module. CONSTITUTION:An auxiliary lens 4 is provided between a lens for gathering light of an optical wireless transmitter. It is also so arranged that light near a limit point of a light receiving range, for example, light near 85 deg. in angle of incidence can enter into the photo detector 3. In this manner, as the auxiliary lens 4 for a wider angle of the light receiving range is mounted integral on the front of the photo detector 3 of a light receiving module 2, adjustment for obtaining a desired photosensing performance can be simplified. Simplification of assembling work is also possible. |
申请公布号 |
JPH02242126(A) |
申请公布日期 |
1990.09.26 |
申请号 |
JP19890063102 |
申请日期 |
1989.03.15 |
申请人 |
MATSUSHITA ELECTRIC WORKS LTD |
发明人 |
HARADA TAKAO;MASUDA TOSHIYUKI |
分类号 |
G01J1/04;G01J1/02;G02B3/00;H04B10/11 |
主分类号 |
G01J1/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|