专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5069515A Optical deflector of air bearing type 失效
标题翻译：空气轴承类型的光学偏转器
公开(公告)号：US5069515A
公开(公告)日：1991-12-03
申请号：US584615
申请日：1990-09-19
申请人： Yukio Itami , Mitsuo Suzuki , Teruo Ohne , Kenichi Hoshi , Eiri Sagae , Yoshio Hashimoto
发明人： Yukio Itami , Mitsuo Suzuki , Teruo Ohne , Kenichi Hoshi , Eiri Sagae , Yoshio Hashimoto
IPC分类号： G02B26/12
CPC分类号： G02B26/121 , F16C17/026 , F16C32/0427
摘要： An optical deflector of an air bearing type has a fixed shaft; a rotary shaft having a hollow portion fitted onto the fixed shaft; a support device disposed between an end portion of the fixed shaft and an end portion of the hollow portion opposite thereto and supporting the rotary shaft in an axial direction thereof; a radial air bearing formed between an inner circumferential face of the hollow portion and an outer circumferential face of the fixed shaft; a polygon mirror fixed to the rotary shaft; a driving device for rotating the rotary shaft; a device for deflecting light irradiated onto the polygon mirror by rotating the rotary shaft through the driving device; a device for forming a flange for fixing the polygon mirror thereto integrally with the rotary shaft; and a device for setting an upper end portion of the support device on a fixed shaft side thereof to be lower than an upper end face of the polygon mirror. The support device has a first magnet directly attached onto an end face of the fixed shaft, a second magnet opposite to the first magnet and attached to the hollow portion of the rotary shaft, and a third magnet opposite to the second magnet and attached to a casing for covering the polygon mirror. Magnetic poles of the first, second and third magnets are opposite to each other to generate magnetic repulsive force.
摘要翻译：空气轴承型光偏转器具有固定轴; 具有安装在所述固定轴上的中空部的旋转轴; 支撑装置，其设置在所述固定轴的端部和与所述固定轴的端部相对的中空部的端部之间，并且沿其轴向方向支撑所述旋转轴; 形成在所述中空部的内周面与所述固定轴的外周面之间的径向空气轴承; 固定在旋转轴上的多面镜; 用于旋转所述旋转轴的驱动装置; 用于通过驱动装置旋转旋转轴来偏转照射到多面镜上的光的装置; 用于形成用于将所述多角镜固定到所述旋转轴上的凸缘的装置; 以及用于将固定轴侧的支撑装置的上端部设定为低于多面镜的上端面的装置。支撑装置具有直接附接到固定轴的端面上的第一磁体，与第一磁体相对的第二磁体并且附接到旋转轴的中空部分，以及与第二磁体相对的第三磁体，并附接到第一磁体用于覆盖多面镜的外壳。第一，第二和第三磁体的磁极彼此相对以产生磁性排斥力。

IPRDB

热门服务

关于我们

友情链接

联系方式