IMAGING APPARATUS
First Claim
Patent Images
1. An imaging apparatus comprising:
- a single multifocal lens having a plurality of regions, the plurality of regions having respective different focal distances;
a single imaging element in which a plurality of light receiving sensors corresponding to the respective plurality of regions are arranged in a two-dimensional arrangement;
an image processing device which acquires a plurality of images corresponding to light beams, respectively, each of which has passed through any of the plurality of regions having the respective different focal distances and been received by the plurality of light receiving sensors in response to one image capturing instruction, as respective individual images; and
an illumination light source that irradiates a subject with illumination light, whereineach of the plurality of light receiving sensors selectively receives only the light beam that has passed through the corresponding region of the plurality of regions of the image capturing lens and does not receive the light beam that has passed through any other region except the corresponding region, regardless of a position in the two dimensional arrangement, andan aperture area ratio between the plurality of regions is configuredsuch that, when the plurality of images are simultaneously acquired via the plurality of regions using the illumination light source and the image processing device,brightness of the image of the subject at an in-focus distance of one region of the plurality of regions, the image imaged via the one region, the brightness arising from the illumination light,is substantially equal tobrightness of the image of another subject at an in-focus distance of another region except the one region, the image captured via the other region, the brightness arising from the illumination light.
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Abstract
In the imaging apparatus according to an aspect of the present invention, the aperture area ratio between the plurality of regions of the multifocal lens is appropriately configured. Thereby, it is configured such that, when a plurality of images are simultaneously imaged via the plurality of regions using the illumination light source, brightness of the image of the subject at an in-focus distance corresponding to one region of the plurality of regions, the image imaged via the one region, the brightness arising from the illumination light, is substantially equal to brightness of the image of another subject at an in-focus body distance corresponding to another region, the image imaged via the other region except the one region, the brightness arising from the illumination light. Accordingly, the subject at any of the distances does not suffer excess or deficient exposure.
9 Citations
20 Claims
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1. An imaging apparatus comprising:
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a single multifocal lens having a plurality of regions, the plurality of regions having respective different focal distances; a single imaging element in which a plurality of light receiving sensors corresponding to the respective plurality of regions are arranged in a two-dimensional arrangement; an image processing device which acquires a plurality of images corresponding to light beams, respectively, each of which has passed through any of the plurality of regions having the respective different focal distances and been received by the plurality of light receiving sensors in response to one image capturing instruction, as respective individual images; and an illumination light source that irradiates a subject with illumination light, wherein each of the plurality of light receiving sensors selectively receives only the light beam that has passed through the corresponding region of the plurality of regions of the image capturing lens and does not receive the light beam that has passed through any other region except the corresponding region, regardless of a position in the two dimensional arrangement, and an aperture area ratio between the plurality of regions is configured such that, when the plurality of images are simultaneously acquired via the plurality of regions using the illumination light source and the image processing device, brightness of the image of the subject at an in-focus distance of one region of the plurality of regions, the image imaged via the one region, the brightness arising from the illumination light, is substantially equal to brightness of the image of another subject at an in-focus distance of another region except the one region, the image captured via the other region, the brightness arising from the illumination light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification
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Current AssigneeFujifilm Corporation (Fujifilm Holdings Corporation)
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Original AssigneeFujifilm Corporation (Fujifilm Holdings Corporation)
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InventorsONO, Shuji
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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 Current348/222.1
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CPC Class CodesG02B 23/2461 IlluminationG03B 15/03 Combinations of cameras wit...G03B 3/00 Focusing arrangements of ge...H04N 23/555 for picking-up images in si...H04N 23/56 provided with illuminating ...H04N 23/74 by influencing the scene br...
