Hyperspectral Imaging Device
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsKai OJALA, Heikki SAARI
Life of this patent
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Abstract
A spectral imaging device comprises: an optical modifier system (SYS1) to form axial light beams (LB2) from received light beams (LB1), the axial light beams (LB2) being parallel with an optical axis (AX1) of the imaging device (500), a Fabry-Perot interferometer (FPI) to provide filtered axial light beams (LB3) by filtering light of the axial light beams (LB2), an image sensor (SEN1), and an array (ARR1) of lenses (LNS0,0, LNS0,1) to form a plurality of sub-images (S0,0, S0,1) on the image sensor (SEN1) by focusing light of the filtered light beams (LB3).
Claims12
An imaging device, comprising:
- a modifier system (SYS1) to form axial light beams (LB2) from received light beams (LB1), the axial light beams (LB2) being parallel with an optical axis (AX1) of the imaging device,
- a Fabry-Perot interferometer (FPI) to provide filtered axial light beams (LB3) by filtering light of the axial light beams (LB2),
- an image sensor (SEN1), and
- an array (ARR1) of lenses (LNS0,0, LNS0,1) to form a plurality of sub-images (S0,0, S0,1) on the image sensor (SEN1) by focusing light of the filtered light beams (LB3).
A method, comprising:
- receiving light beams (LB1b, LB1c) from object points (P1b, P1c) of an object (OBJ1),
- forming axial light beams (LB2b, LB2c) from the received light beams (LB1b, LB1c) by using an optical modifier system (SYS1), the axial light beams (LB2) being parallel with an optical axis (AX1) of the imaging device,
- providing filtered axial light beams (LB3b, LB3c) from the axial light beams (LB2b, LB2c) by using a Fabry-Perot interferometer (FPI) as an optical filter,
- using an array (ARR1) of lenses (LNS0,0, LNS0,1) to form a plurality of sub-images (S0,0, S0,1) on an image sensor (SEN1) by focusing light of the filtered light beams (LB3b, Lb3c).
Dependencies are inferred from the claim text.