Spectroscope
AssigneeHamamatsu Photonics K.K.
InventorsKatsumi Shibayama, Tomofumi Suzuki, Masashi Ito
Life of this patent
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Abstract
The spectrometer 1 is provided with a package 2 in which a light guiding portion 7 is provided, a spectroscopic module 3 accommodated inside the package 2, and a support member 29 arranged on an inner wall plane of the package 2 to support the spectroscopic module 3. The spectroscopic module 3 is provided with a body portion 11 for transmitting light made incident from the light guiding portion 7 and a spectroscopic portion 13 for dispersing light passed through the body portion 11 on a predetermined plane of the body portion 11, and the spectroscopic portion 13 is supported by the support member 29 on the predetermined plane in a state of being spaced away from the inner wall plane.
Claims8
A spectroscopic module comprising:
- a light-transmitting body portion;
- a spectroscopic portion for dispersing light made incident from a predetermined plane of the body portion into the body portion, and reflecting the light;
- and
- a light detecting element provided on the predetermined plane, for detecting the light dispersed and reflected by the spectroscopic portion;
- wherein the spectroscopic portion has a diffracting layer provided on a curved plane of the body portion and a reflecting layer provided on a surface of the diffracting layer,
- wherein the curved plane of the body portion provided with the diffracting layer is a projection, and
- wherein light irradiating from the predetermined plane of the body portion passes a boundary plane of the body portion and diffracting layer, irradiating the diffracting layer.
A spectroscopic module comprising:
- a light-transmitting body portion;
- a spectroscopic portion for dispersing light made incident from a predetermined plane of the body portion into the body portion, and reflecting the light;
- and
- a light detecting element provided on the predetermined plane, for detecting the light dispersed and reflected by the spectroscopic portion;
- wherein the spectroscopic portion has a diffracting layer provided on a surface of the body portion and a reflecting layer provided on a surface of the diffracting layer;
- wherein the diffracting layer includes a first portion having a curved plane as the surface of the diffracting layer and a second portion provided along outer edge of the first portion, and
- wherein light irradiating from the predetermined plane of the body portion passes a boundary plane of the body portion and the first portion of the diffracting layer, irradiating the first portion of the diffracting layer.
Dependencies are inferred from the claim text.