发明授权
US5363136A Cam actuated optical offset image sampling system 失效
凸轮驱动光学偏移图像采样系统

Cam actuated optical offset image sampling system
摘要:
The system of the present invention increases the resolution of an image that may be formed from an image sensor without increasing the resolution of the sensor. An image beam is directed along a path through a color filter wheel and a single non-rotating transparent plate and impinges on a CCD (Charge Coupled Device). A cam body with an angled surface rotates about the optical axis of the image beam and tilts the transparent plate in a plurality of discrete sampling positions. At each sampling position, the tilted transparent plate displaces the image beam in a different direction. Therefore, each pixel of the CCD samples a plurality of areas of the image. The color wheel is rotated to sequentially place each filter into the path of the image beam. The CCD sequentially receives the light passed through the transparent plate and color filter wheel and converts the image formed by the light to corresponding electrical signals. The electrical signals are stored and reordered by interleaving to form an image with increased resolution.
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