利索-全球专利检索

  1. 登录
  2. 注册
发明授权
US6121984A DMD modulated continuous wave light source for imaging systems 失效
用于成像系统的DMD调制连续波光源

DMD modulated continuous wave light source for imaging systems
摘要：
An illumination system (10) for exposing a xerographic printing apparatus (12). The system (10) includes a DMD-type imaging spatial light modulator (46), and a DMD-type optical switch (26) for modulating the intensity of the source light (15) irradiating the imaging DMD (46). A single conventional continuous wave tungsten lamp (14) is implemented with its light energy directed by a condensing lens (20) onto the DMD optical switch (26). The DMD optical switch (26) modulates the incident light (15), and passes reflected light to a light integrator (38), which in turn homogenizes and increases the aspect ratio of the light. The light integrator (38) directs the homogenized light via an anamorphic lens (40) onto the imaging DMD (46). The light energy provided to the imaging DMD (46) is precisely modulated in intensity, while remaining uniformly disbursed. The combination incandescent lamp (14) and optical DMD switch (26) offers a low cost, high-intensity alternative to LED arrays.
摘要（中）：

一种用于曝光静电印刷装置（12）的照明系统（10）。 系统（10）包括DMD型成像空间光调制器（46）和用于调制照射成像DMD（46）的源光（15）的强度的DMD型光开关（26）。 单个常规的连续波钨钨灯（14）的光能由聚光透镜（20）引导到DMD光开关（26）上。 DMD光开关（26）调制入射光（15），并将反射光通过光积分器（38），光积分器（38）进而均匀化并增加光的纵横比。 光积分器（38）将均质化光通过变形透镜（40）引导到成像DMD（46）上。 提供给成像DMD（46）的光能在强度上被精确调制，同时保持均匀地分配。 组合白炽灯（14）和光学DMD开关（26）为LED阵列提供了低成本，高亮度的替代品。

公开/授权文献
信息查询
Global Dossier Espacenet
0/0