发明名称 |
Transparent substrate having rain sensor |
摘要 |
A front windshield 1 having a rain sensor 2 for detecting the adhesion or presence of water drops W upon one side surface thereof, depending upon variation in an amount of reflected light, wherein the rain sensor 2 comprises: a light emitting element 7 for introducing a sensing light beam into the front windshield 1; a light receiving element 8 for detecting the light beam which is propagated by total internal reflection within the front windshield 1; and diffraction gratings 5, 6 formed on a surface of a glass substrate 4, through which the light emitting element 7 and the light receiving element 8 are provided on glass surface, whereby the rain sensor 2 is adhered on the other side surface of the front windshield 1 by means of an adhesive material 3 having a refractive index equivalent to that of the glass substrate 4.
|
申请公布号 |
US5991049(A) |
申请公布日期 |
1999.11.23 |
申请号 |
US19980120142 |
申请日期 |
1998.07.22 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
TANAKA, SHUHEI;KOYAMA, TADASHI;TSUNETOMO, KEIJI;IMANISHI, HIDEKI |
分类号 |
G01N21/17;B60S1/08;G01W1/14;(IPC1-7):G01N21/55 |
主分类号 |
G01N21/17 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|