IMAGING APPARATUS AND IMAGING METHOD
First Claim
Patent Images
1. An imaging apparatus comprising:
- a first polarizing unit that polarizes light from an object;
a lens system that condenses light from the first polarizing unit; and
an imaging element array that has imaging elements arranged in a matrix of a first direction and a second direction orthogonal to the first direction, has a second polarizing unit arranged on a light incident side, and converts the light condensed by the lens system into an electric signal,wherein the first polarizing unit has a first region and a second region that are arranged along the first direction,a polarization state of first region passing light that has passed through the first region is different from a polarization state of second region passing light that has passed through the second region,the second polarizing unit has a plurality of third regions and a plurality of fourth regions that are arranged alternately along the first direction and extend in the second direction,a polarization state of third region passing light that has passed through the third region is different from a polarization state of fourth region passing light that has passed through the fourth region, andthe first region passing light passes through the third region and arrives at the imaging element and the second region passing light passes through the fourth region and arrives at the imaging element, thereby imaging an image to obtain a stereoscopic image in which a distance between a center of gravity point of the first region and a center of gravity point of the second region is set as a base-line length of binocular parallax.
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Abstract
There is provided an imaging apparatus including a first polarizing unit that polarizes light from an object, a lens system that condenses light from the first polarizing unit, and an imaging element array that has imaging elements arranged in a matrix of a first direction and a second direction orthogonal to the first direction, has a second polarizing unit arranged on a light incident side, and converts the light condensed by the lens system into an electric signal.
117 Citations
27 Claims
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1. An imaging apparatus comprising:
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a first polarizing unit that polarizes light from an object; a lens system that condenses light from the first polarizing unit; and an imaging element array that has imaging elements arranged in a matrix of a first direction and a second direction orthogonal to the first direction, has a second polarizing unit arranged on a light incident side, and converts the light condensed by the lens system into an electric signal, wherein the first polarizing unit has a first region and a second region that are arranged along the first direction, a polarization state of first region passing light that has passed through the first region is different from a polarization state of second region passing light that has passed through the second region, the second polarizing unit has a plurality of third regions and a plurality of fourth regions that are arranged alternately along the first direction and extend in the second direction, a polarization state of third region passing light that has passed through the third region is different from a polarization state of fourth region passing light that has passed through the fourth region, and the first region passing light passes through the third region and arrives at the imaging element and the second region passing light passes through the fourth region and arrives at the imaging element, thereby imaging an image to obtain a stereoscopic image in which a distance between a center of gravity point of the first region and a center of gravity point of the second region is set as a base-line length of binocular parallax. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An imaging method using an imaging apparatus, the imaging apparatus including a first polarizing unit that polarizes light from an object, a lens system that condenses light from the first polarizing unit, and an imaging element array that has imaging elements arranged in a matrix of a first direction and a second direction orthogonal to the first direction, has a second polarizing unit arranged on a light incident side, and converts the light condensed by the lens system into an electric signal, the first polarizing unit having a first region and a second region that are arranged along the first direction, a polarization state of first region passing light that has passed through the first region being different from a polarization state of second region passing light that has passed through the second region, the second polarizing unit having a plurality of third regions and a plurality of fourth regions that are arranged alternately along the first direction and extend in the second direction, a polarization state of third region passing light that has passed through the third region being different from a polarization state of fourth region passing light that has passed through the fourth region, and the first region passing light passing through the third region and arriving at the imaging element and the second region passing light passing through the fourth region and arriving at the imaging element, thereby imaging an image to obtain a stereoscopic image in which a distance between a center of gravity point of the first region and a center of gravity point of the second region is set as a base-line length of binocular parallax, the imaging method comprising:
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generating an electric signal to obtain a right eye image in the imaging element, by the first region passing light that has passed through the third region and has arrived at the imaging element; generating an electric signal to obtain a left eye image in the imaging element, by the second region passing light that has passed through the fourth region and has arrived at the imaging element; and outputting the generated electric signals. - View Dependent Claims (24, 25)
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26. An imaging apparatus comprising:
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a first polarizing unit that polarizes light from an object; a lens system that condenses light from the first polarizing unit; and an imaging element array that has imaging elements arranged in a matrix of a first direction and a second direction orthogonal to the first direction, has a second polarizing unit arranged on a light incident side, and converts the light condensed by the lens system into an electric signal, wherein the first polarizing unit has a first region and a second region that are arranged along the first direction, a polarization state of first region passing light that has passed through the first region is different from a polarization state of second region passing light that has passed through the second region, the second polarizing unit has a plurality of third regions and a plurality of fourth regions that are arranged alternately along the first direction and extend in the second direction, third region passing light that has passed through the third region is in a polarization state and fourth region passing light that has passed through the fourth region is in a non-polarization state, and the first region passing light passes through the third region and arrives at the imaging element and the first region passing light and the second region passing light pass through the fourth region and arrive at the imaging element, thereby imaging an image to obtain a stereoscopic image in which a distance between a center of gravity point of the first region and a center of gravity point of the first polarizing unit is set as a base-line length of binocular parallax.
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27. An imaging method using an imaging apparatus, the imaging apparatus including a first polarizing unit that polarizes light from an object, a lens system that condenses light from the first polarizing unit, and an imaging element array that has imaging elements arranged in a matrix of a first direction and a second direction orthogonal to the first direction, has a second polarizing unit arranged on a light incident side, and converts the light condensed by the lens system into an electric signal, the first polarizing unit having a first region and a second region that are arranged along the first direction, a polarization state of first region passing light that has passed through the first region being different from a polarization state of second region passing light that has passed through the second region, the second polarizing unit having a plurality of third regions and a plurality of fourth regions that are arranged alternately along the first direction and extend in the second direction, third region passing light that has passed through the third region being in a polarization state and fourth region passing light that has passed through the fourth region being in a non-polarization state, and the first region passing light passing through the third region and arriving at the imaging element and the first region passing light and the second region passing light passing through the fourth region and arriving at the imaging element, thereby imaging an image to obtain a stereoscopic image in which a distance between a center of gravity point of the first region and a center of gravity point of the first polarizing unit is set as a base-line length of binocular parallax, the imaging method comprising:
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generating an electric signal to obtain one of a right eye image and a left eye image in the imaging element, by the first region passing light that has passed through the third region and has arrived at the imaging element; generating an electric signal to obtain the other of the right eye image and the left eye image in the imaging element, by the first region passing light and the second region passing light that have passed through the fourth region and have arrived at the imaging element; and outputting the generated electric signals.
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Specification
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Current AssigneeSony Corporation (Sony Group Corp.)
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Original AssigneeSony Corporation (Sony Group Corp.)
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InventorsBaba, Tomohiko
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current348/49
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CPC Class CodesG02B 27/281 used for attenuating light ...G02B 30/25 using polarisation techniquesG03B 35/10 having single camera with s...H01L 27/14621 Colour filter arrangementsH04N 13/218 using spatial multiplexingH04N 13/257 Colour aspectsH04N 13/289 Switching between monoscopi...H04N 13/337 using polarisation multiple...H04N 2209/046 Colour interpolation to cal...H04N 2213/001 Constructional or mechanica...H04N 23/55 Optical parts specially ada...H04N 23/843 Demosaicing, e.g. interpola...H04N 25/134 based on three different wa...
