Abstract: An imaging device includes: a plurality of optical systems each forming an image of a subject; a plurality of imaging sensors corresponding to the respective plurality of optical systems; and a housing part that houses the plurality of optical systems and the plurality of imaging sensors, the housing part having a peripheral surface along a circumferential direction about a reference axis, wherein: at least two of the plurality of optical systems each have: a peripheral lens arranged along the peripheral surface and located closest to an object; and a first optical path, the first optical paths of the at least two optical systems intersecting each other; and each of the peripheral lenses has a longitudinal direction, the peripheral lens being arranged along the peripheral surface such that the longitudinal direction extends along the reference axis.

Abstract: A imaging device includes: a plurality of optical systems each forming an image of a subject; a plurality of imaging sensors corresponding to the respective plurality of optical systems; a common transmissive optical element through which optical paths of the respective plurality of optical systems pass; and a housing part that houses the optical systems, the imaging sensors and the transmissive optical element, the housing part having a peripheral surface along a circumferential direction about a reference axis, wherein at least two of the plurality of optical systems each have: a peripheral lens arranged along the peripheral surface and located closest to an object; and a first optical path, the first optical paths of the at least two optical systems intersecting each other inside the transmissive optical element.

Abstract: Provided is an image processing apparatus that processes a video, including continuous images expressed by a coordinate system which includes at least an angular coordinate around a predetermined axis. The image processing apparatus includes: video data acquisition means that acquires video data; sensor data acquisition means that acquires sensor data corresponding to the video data; and rotation correction means that corrects the image to cancel rotation change around the reference axis based on the sensor data so that a reference of display of the image is fixed to a specific direction during the image capturing throughout a plurality of frames of the video.

Abstract: A imaging device includes: a plurality of optical systems each forming an image of a subject; a plurality of imaging sensors corresponding to the respective plurality of optical systems; a common transmissive optical element through which optical paths of the respective plurality of optical systems pass; and a housing part that houses the optical systems, the imaging sensors and the transmissive optical element, the housing part having a peripheral surface along a circumferential direction about a reference axis, wherein at least two of the plurality of optical systems each have: a peripheral lens arranged along the peripheral surface and located closest to an object; and a first optical path, the first optical paths of the at least two optical systems intersecting each other inside the transmissive optical element.

Abstract: An imaging device includes: a plurality of optical systems each forming an image of a subject; a plurality of imaging sensors corresponding to the respective plurality of optical systems; and a housing part that houses the plurality of optical systems and the plurality of imaging sensors, the housing part having a peripheral surface along a circumferential direction about a reference axis, wherein: at least two of the plurality of optical systems each have: a peripheral lens arranged along the peripheral surface and located closest to an object; and a first optical path, the first optical paths of the at least two optical systems intersecting each other; and each of the peripheral lenses has a longitudinal direction, the peripheral lens being arranged along the peripheral surface such that the longitudinal direction extends along the reference axis.

Abstract: An imaging device includes: a first housing part that houses a plurality of optical systems each forming an image of a subject and a plurality of imaging sensors corresponding to the respective plurality of optical systems; and a second housing part extending from the first housing part so as to be gripped by a user, wherein: the first housing part has a peripheral surface along a circumferential direction about a reference axis along an extending direction in which the second housing part extends; at least two of the plurality of optical systems each have: a peripheral lens arranged along the peripheral surface and located closest to an object; and a first optical path, the first optical paths of the at least two optical systems intersecting each other; and a circumcircle constituting a largest diameter of the second housing part is smaller than a circumcircle constituting a smallest diameter of the peripheral surface at a position including the peripheral lenses in the first housing part.

Abstract: Provided is an image processing apparatus that processes a video, including continuous images expressed by a coordinate system which includes at least an angular coordinate around a predetermined axis. The image processing apparatus includes: video data acquisition means that acquires video data; sensor data acquisition means that acquires sensor data corresponding to the video data; and rotation correction means that corrects the image to cancel rotation change around the reference axis based on the sensor data so that a reference of display of the image is fixed to a specific direction during the image capturing throughout a plurality of frames of the video.

Abstract: A paper sheet fluorescence sensor utilizes an ultraviolet-reflecting filter to orthogonally irradiate a conveying path with ultraviolet light and receive fluorescence from a paper sheet. The ultraviolet-reflecting filter reflects ultraviolet light emitted from an ultraviolet light source, to produce light having an optical axis orthogonal to the conveying path of the paper sheet. The light transmitted through the ultraviolet-reflecting filter is detected by a fluorescence detecting device. An ultraviolet-transmitting filter is disposed between the ultraviolet-reflecting filter and the ultraviolet light source, so that the light reflected by the ultraviolet-reflecting filter attains a higher ultraviolet content, thereby improving light-detection accuracy.

Abstract: A paper sheet fluorescence sensor 10 utilizes an ultraviolet-reflecting filter 30 in order to orthogonally irradiate a conveying path 4 with an ultraviolet ray and appropriately receive fluorescence from a paper sheet 7. The ultraviolet-reflecting filter 30 reflects light emitted from an ultraviolet light source 12, so as to produce light having an optical axis R2 orthogonal to the conveying path 4 of the paper sheet 7. The light transmitted through the ultraviolet-reflecting filter 30 is received by a fluorescence-receiving device 16. An ultraviolet-transmitting filter 15 is disposed between the ultraviolet-reflecting filter 30 and the ultraviolet light source 12, so that the light reflected by the ultraviolet-reflecting filter 30 attains a higher ultraviolet content, thereby improving the light-receiving accuracy.