National Central University

Delta Electronics, Inc.

Wei-Kai Su

Mang Ou-Yang

Ting-Wei Huang

Yu-Ta Chen

Hong-Cheng Sheu

Kuo-Ting Ho

The apparatus for scanning at least one hyper-spectral image comprises an optical system, the hyper-spectrometer and the relay module. The hyper-spectrometer is disposed apart from the optical system. The optical system can focus an optical image of a target in a focal plane thereof, where the focal plane contains a plurality of row portions of the optical image. The relay module can selectively relay one of the row portions of the optical image to the hyper-spectrometer. Moreover, a method for scanning at least one hyper-spectral image is disclosed in specification.

Method and apparatus for scanning hyper-spectral image

An absolute-type encoder includes an absolute-type encoder wheel. The absolute-type encoder wheel includes a primary optical grating unit and two secondary optical grating units, wherein the two secondary optical grating units are arranged outside and inside the primary optical grating unit and contain one less optical grating than that of the primary optical grating unit. The encoder wheel is rotated to find a zero point in the light detection signal of the secondary optical grating unit, and a corresponding light detection value of the primary optical grating unit is also determined based on the zero point. The absolute position of the encoder wheel can be calculated with reference to the corresponding light detection value. The absolute-type encoder can also be used as an incremental-type encoder to provide more versatility.

Absolute-type encoder and method for detecting absolute position

Growing community of inventors

Sindian, Taiwan

Wei-Kai Su