Spectrometer
AssigneeValtion Teknillinen Tutkimuskeskus
InventorJouko Malinen
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Abstract
The present invention concerns an LED spectrometer operating without moving parts according to the sweep principle, and appropriate to serve as a structural component in many kinds of spectroscopic concentration analyzers. The design of the invention affords the advantage that, even at its minimum, the optical power of the LED spectrometer of the invention is about fivefold compared with the designs of prior art. Furthermore, improvement of the efficiency of the LED radiation source and of that of the optics has brought a multiple augmentation in power to the wavelength spectrum sent out by the radiation source. In the design of the invention, concentrators (6) of non-imaging type are used to collimate the wavelength spectrum emitted by the LEDs (3).
Claims14
A spectrometer, comprising a radiation source comprising a light element base and a plurality of light elements which are arranged on said light element base in row form with predetermined mutual spacing, and optical means disposed in conjunction with the radiation source, for collecting the radiation produced by said light elements, for dispersing it to a predetermined wavelength spectrum and for directing it to an object under measurement, wherein the radiation source comprises a reflector base disposed in conjunction with the light element base and on which the light elements have been arranged, and which comprises a concentrator corresponding to each light element and disposed in conjunction with each light element, for directing the radiation emitted by the light element into a predetermined solid angle.
Dependencies are inferred from the claim text.