Spectrometer

Details Spectrometer Spectrometer

2009-05-13

2011-10-18

Geisel, Kara E (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

Reexamination Certificate

active

08040507

ABSTRACT:
In the spectrometer1, a lens portion3having a spherical surface35on which a spectroscopic portion4is provided and a bottom plane31in which a light detecting element5is disposed, has a side plane32substantially perpendicular to the bottom plane31and a side plane34substantially perpendicular to the bottom plane31and the side plane32. Then, a package11that houses a spectroscopy module10has side planes16and18respectively coming into planar-contact with the side planes32and34, and contact portions22coming into contact with the spherical surface35. Therefore, the side planes32and34of the lens portion3are respectively brought into planar-contact with the side planes16and18of the package11while bringing the spherical surface35of the lens portion3into contact with the contact portions22of the package11, that positions the spectroscopic portion4and the light detecting element5with respect to a light incident window plate25of the package11.

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