Abstract: There is provided an apparatus including: a storage unit configured to store, for each of a plurality of pieces of work to be performed by a worker, an area to be seen by the worker when the work is performed; a detection unit configured to detect each area seen by the worker; and a determination unit configured to determine whether each area stored by the storage unit is detected by the detection unit.

Abstract: There is provided an apparatus including a detection unit configured to detect an object viewed by a subject, a storage unit configured to store historical data of the object viewed by the subject in association with each of a plurality of situations having occurred in a scene in response to the occurrence of the situation, and an output unit configured to output, when any of the plurality of situations has occurred, information for identifying the object associated with the situation in the historical data.

Abstract: Provided is an apparatus comprising: a determination unit configured to determine a first region to be viewed by a user in a display screen; a detection unit configured to detect a user's visual line; and a display control unit configured to change a display mode of the first region in response to the first region being not viewed.

Abstract: An apparatus comprising an acquisition unit configured to acquire a captured image from a camera that is capable of controlling an orientation, a display control unit configured to display the captured image onto a display screen, a detection unit configured to detect, within the display screen, a subject at which a user is looking, and an orientation changing unit configured to change an orientation of the camera in such a way that the subject does not fall out of an imaging region of the camera is provided.

Abstract: An apparatus is provided including a display control unit configured to display a display screen based on default display settings; a detection unit configured to detect a region viewed by a user within the display screen; a determining unit configured to determine a degree of attention of each region within the display screen based on a detection result by the detection unit; a generating unit configured to generate update display settings different from the default display settings based on a determination result by the determining unit; and an updating unit configured to change the default display settings to the update display settings and cause the display control unit to update the display screen in response to input of an update command by the user.

Abstract: There is provided an apparatus including a storage unit configured to store a display setting for each of a plurality of users, an identification unit configured to identify a current user currently facing a display screen among the plurality of users, a display control unit configured to cause the display screen to perform display by the display setting corresponding to the current user, a determination unit configured to determine presence or absence of stress of the user with respect to the display, and a change unit configured to change the display setting corresponding to the current user when it is determined that the stress is present.

Abstract: There is provided an apparatus comprising: a display control unit configured to cause a display screen to display text; a first detection unit configured to detect a subject area which a user is looking at in the text; a second detection unit configured to detect a slow area where a moving speed of the subject area decreases; a storage unit configured to store a piece of location information of each slow area in the text; and a statistics unit configured to perform a statistical processing on the pieces of location information stored by the storage unit.

Abstract: A maintenance information sharing device includes a maintenance record obtainer configured to obtain a maintenance record of a maintenance target, a maintenance record storage configured to associate the maintenance record obtained by the maintenance record obtainer with identification information for identifying the maintenance target, the maintenance record storage storing the maintenance record associated with the identification information, a maintenance information generator configured to generate maintenance information based on the maintenance record associated with the identification information and stored by the maintenance record storage, a maintenance information storage which stores the maintenance information generated by the maintenance information generator, a searcher configured to search the maintenance information stored by the maintenance information storage based on the identification information, and a maintenance information provider configured to provide the maintenance information sear

Abstract: An apparatus is provided, comprising: a storage portion for storing, by each position on a patrol route, an equipment to be inspected in a plant which should be inspected by viewing by a patroller; a position acquisition portion for acquiring a position of a patroller on a patrol route; a first detection portion for detecting a viewed equipment which has been viewed by a patroller; and an alert portion for outputting an alert signal about the viewed equipment, in response to a fact that the equipment to be inspected, which corresponds to a position of a patroller on a patrol route, is not detected as the viewed equipment.

Abstract: A tunable filter includes: an optical input/output unit; a first mirror having a first reflective surface disposed to reflect input light from the optical input/output unit; a transmissive diffraction grating disposed on a propagation path of the input light reflected by the first mirror; and a second mirror having a second reflective surface disposed to reflect transmitted diffracted light from the transmissive diffraction grating corresponding to the input light. The first reflective surface is a variable-angle reflective surface. The second reflective surface has a fixed orientation relative to the transmissive diffraction grating.

Abstract: A liquid-crystal spatial phase modulator includes: a liquid-crystal layer; a transparent electrode layer above the liquid-crystal layer; a lower electrode layer disposed below the liquid-crystal layer; a first heat-resistant layer that has higher thermal resistance than the transparent electrode layer and is disposed above and adjacent to the transparent electrode layer; and a second heat-resistant layer that has higher thermal resistance than the transparent electrode layer and is disposed between the transparent electrode layer and the liquid-crystal layer and adjacent to the transparent electrode layer. Light from above passes through the transparent electrode layer.

Abstract: A variable wavelength filter includes: an input optical fiber; a diffraction grating that disperses input light from the input optical fiber; a variable mirror that has a reflective surface, wherein an angle of the reflective surface is adjustable, the variable mirror reflects the input light dispersed by the diffraction grating, the input light reflected by the variable mirror passes through a normal optical path, the input light that passes through the normal optical path has a wavelength band defined based on the angle of the reflective surface, and the defined wavelength band has a center wavelength corresponding to the angle of the reflective surface; an output optical fiber that outputs a portion of the input light that has passed through the normal optical path; and an optical detector disposed on a propagation path of the input light from the input optical fiber to the output optical fiber.

Abstract: A tunable filter includes: a first transparent substrate including a first reflective surface; a second transparent substrate including a second reflective surface that opposes the first reflective surface; and a supporting member, connected to the first transparent substrate, that supports the second transparent substrate on the first transparent substrate so that the second reflective surface is disposed at a position separated from the first reflective surface in a normal direction of the first reflective surface. A cavity between the first reflective surface and the second reflective surface forms an etalon. A relative position of the second transparent substrate with respect to the first transparent substrate changes due to thermal expansion of the supporting member, and a length of the cavity changes in the normal direction.

Abstract: An integrated optical device includes: a housing; a liquid-crystal optical power attenuator, an optical splitter, and an optical power monitor housed inside the housing; and first and second optical fibers housed inside the housing. The first optical fibers input an optical signal from outside the housing to the optical power attenuator. In a polarized state, the optical power attenuator attenuates the optical signal from the first optical fibers. The second optical fibers output the attenuated optical signal from the optical power attenuator to outside the housing. The optical splitter generates a split signal by splitting at least one of: the optical signal input to the optical power attenuator from the first optical fibers, and the attenuated optical signal propagated from the optical power attenuator to the second optical fibers. The optical power monitor receives the split signal and detects a power of the split signal.

Abstract: A variable wavelength filter includes: an input optical fiber; a diffraction grating that disperses input light from the input optical fiber; a variable mirror that has a reflective surface, wherein an angle of the reflective surface is adjustable, the variable mirror reflects the input light dispersed by the diffraction grating, the input light reflected by the variable mirror passes through a normal optical path, the input light that passes through the normal optical path has a wavelength band defined based on the angle of the reflective surface, and the defined wavelength band has a center wavelength corresponding to the angle of the reflective surface; an output optical fiber that outputs a portion of the input light that has passed through the normal optical path; and an optical detector disposed on a propagation path of the input light from the input optical fiber to the output optical fiber.

Abstract: A liquid-crystal spatial phase modulator includes: a liquid-crystal layer; a transparent electrode layer above the liquid-crystal layer; a lower electrode layer disposed below the liquid-crystal layer; a first heat-resistant layer that has higher thermal resistance than the transparent electrode layer and is disposed above and adjacent to the transparent electrode layer; and a second heat-resistant layer that has higher thermal resistance than the transparent electrode layer and is disposed between the transparent electrode layer and the liquid-crystal layer and adjacent to the transparent electrode layer. Light from above passes through the transparent electrode layer.

Abstract: A tunable filter includes: a first transparent substrate including a first reflective surface; a second transparent substrate including a second reflective surface that opposes the first reflective surface; and a supporting member, connected to the first transparent substrate, that supports the second transparent substrate on the first transparent substrate so that the second reflective surface is disposed at a position separated from the first reflective surface in a normal direction of the first reflective surface. A cavity between the first reflective surface and the second reflective surface forms an etalon. A relative position of the second transparent substrate with respect to the first transparent substrate changes due to thermal expansion of the supporting member, and a length of the cavity changes in the normal direction.

Abstract: An integrated optical device includes: a housing; a liquid-crystal optical power attenuator, an optical splitter, and an optical power monitor housed inside the housing; and first and second optical fibers housed inside the housing. The first optical fibers input an optical signal from outside the housing to the optical power attenuator. In a polarized state, the optical power attenuator attenuates the optical signal from the first optical fibers. The second optical fibers output the attenuated optical signal from the optical power attenuator to outside the housing. The optical splitter generates a split signal by splitting at least one of: the optical signal input to the optical power attenuator from the first optical fibers, and the attenuated optical signal propagated from the optical power attenuator to the second optical fibers. The optical power monitor receives the split signal and detects a power of the split signal.

Abstract: An optical power attenuator includes: a MEMS package storing a MEMS element that can control a reflection angle of light by a mirror; a capillary member provided to one end of a two-core optical fiber that transmits the light and that has an end surface on a side that inputs/outputs the light to the two-core optical fiber tilted at a predetermined angle relative to an optical axis of the two-core optical fiber; and a lens that causes a light emitted from one of the optical fibers of the two-core optical fiber to become incident on the MEMS element via the capillary member and guides the reflected light reflected by the mirror of the MEMS element to the other optical fiber of the two-core optical fiber.

Abstract: A detection device is provided with a light-receiving module configured to output an electrical signal according to a power of an input light received at a light-receiving surface, an optical lens configured to collimate and guide to the light-receiving surface the input light from the outside, and at least one condensing unit that is provided in a path of the input light between the optical lens and the light-receiving surface and configured to decrease a beam diameter of the input light at the light-receiving surface.