| 发明名称 | Optical scanning device and image forming apparatus | ||
| 摘要 | An optical scanning device includes a light source configured to emit a light beam; a rotary deflector configured to perform optical scanning by reflecting and deflecting the light beam emitted from the light source while rotating; an optical system forming member configured to form a path of the light beam; and a resonator having a resonance frequency corresponding to a sound generated by rotational drive of the rotary deflector. The rotary deflector is installed in a closed space. The resonator is installed so that the sound within the closed space is absorbed. | ||
| 申请公布号 | US9298121(B2) | 申请公布日期 | 2016.03.29 |
| 申请号 | US201514720022 | 申请日期 | 2015.05.22 |
| 申请人 | RICOH COMPANY, LIMITED | 发明人 | Watanabe Kazunori;Sakaue Yoshinobu;Narita Susumu;Johno Hiroshi |
| 分类号 | G03G15/00;G03G15/04;G02B26/12 | 主分类号 | G03G15/00 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. An optical scanning device comprising: a light source configured to emit a light beam; a rotary deflector configured to perform optical scanning by reflecting and deflecting the light beam emitted from the light source while rotating; an optical system forming member configured to form a path of the light beam; and a resonator having a resonance frequency corresponding to a sound generated by rotational drive of the rotary deflector, wherein the rotary deflector is installed in a closed space, and the resonator is installed so that the sound within the closed space is absorbed. | ||
| 地址 | Tokyo JP | ||