The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2006
Filed:
May. 27, 2004
Helmut Teichmann, Zurich, CH;
Dietmar Hiller, Zurich, CH;
Ulrich Starker, Zurich, CH;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
A spectrometer is configured by using a photodetectorB which comprises a semiconductor substratehaving an upper surface, a photodiode arrayhaving a plurality of photodiodesaligned on the upper surfaceof the substrate, and a light input sectionincluding an opening formed in a predetermined positional relationship to the photodiode array; and a main bodyhaving a plate portionand support portionsandmounted on the substrateof the photodetectorB. The spectrometer is provided with a lensprotruded from a lower faceof the plate portionand a planar aberration-reduced blazed reflection diffraction gratingprovided on an upper faceof the plate portionfor separating incident light having entered through the light input sectionand passed through the lensinto its spectral components, and configured to detect the spectral components with the photodiode array. Thus, a photodetector capable of improving the positioning accuracy of components when it is applied to a spectrometer and the spectrometer using the same are realized.