Invention Grant
US07453613B2 Scanning type image forming apparatus having the same containing scanning mirror in a space sealed by first and second optical members and the housing, the second optical member includes five surfaces 失效
在由第一和第二光学构件和壳体密封的空间中具有包含扫描镜的扫描型图像形成装置,第二光学构件包括五个表面

Scanning type image forming apparatus having the same containing scanning mirror in a space sealed by first and second optical members and the housing, the second optical member includes five surfaces
Abstract:
The object of the present invention is to provide an optical scanning apparatus which is not limited in the disposition of a scanning device, can reduce the adherence of dust to each member of the scanning device, and is enhanced in the reliability of the scanning device, and an image displaying apparatus having the same. The optical scanning apparatus includes a housing for containing and holding therein a scanning device provided with a movable mirror, an elastic supporting portion for supporting the movable mirror swingably about a swinging center, and a supporting base for supporting the elastic supporting portion, an optical member OE constituting a first optical system for directing a beam to the scanning device in the housing, and an optical member OX constituting a second optical system for emerging the beam passed through the scanning device. At least a part of the optical member OE and at least a part of the optical member OX constitute a part of the housing, and are provided so that a space in which the scanning device is contained in the housing configures a sealed space.
Public/Granted literature
Information query
Patent Agency Ranking
0/0