发明名称 |
SCANNING OPTICAL DEVICE AND PHOTOGRAPHIC PROCESSING DEVICE HAVING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To prevent the degradation in image quality due to the dust and dirt on an optical path of a laser beam without lowering the productivity substantially. SOLUTION: A dustproof coat 95 having electrical conductivity and translucency is formed to cover the front surface of dustproof glass 90 and is retained by projecting parts 100a which are portions of a casing 100. The casing 100 and a main body 150 of an exposure unit 14 mounted with the scanning optical device 15 are connected by a conductor 140. Since the main body 150 is grounded, the charges electrified to the dustproof coat 95 are removed through the casing 100 and the conductor 140.
|
申请公布号 |
JP2002258192(A) |
申请公布日期 |
2002.09.11 |
申请号 |
JP20010061613 |
申请日期 |
2001.03.06 |
申请人 |
NORITSU KOKI CO LTD |
发明人 |
YAMAMOTO TAKUYA;NEGORO SHOJI |
分类号 |
G02B26/10;G03B27/32;(IPC1-7):G02B26/10 |
主分类号 |
G02B26/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|