Spectral resolving and sensing apparatus.

摘要

A compact, self contained image resolving and sensing apparatus of the type used in electronic imaging applications includes a plurality of sensing devices (30) such as photodetectors formed on a transparent substrate (12) capable of resolving a polychromatic image incident thereupon. The mechanism by which the substrate resolves the incident image may be refraction, diffraction or other suitable mechanism. The sensing devices are sized and located on the substrate such that they are capable of detecting one or more wavelength components of the resolved polychromatic image. Logic and select circuitry may be formed on the substrate generally contemporaneously and of similar materials as the sensing device. In one embodiment, the sensing devices (30) are located on a primary surface (14) of the substrate, and polychromatic light is incident on a bevelled adjacent surface (16). The light is refracted, with different wavelength components being detected by different sensing devices (30). The incident light may be reflected from a document (50) and focussed onto the sensing apparatus by a lens (52).