Abstract: To safely project a desired projection image in any projection area, provided is a projection system including: a projection device projecting light forming display information in a projection area; an imaging device capturing a range including the projection area; and a control device controlling to cause the projection device to project light and the imaging device to capture the projection area. The control device includes: an analysis circuit accumulating image information about the projection area captured by the imaging device and detects an abnormality in the projection area by comparing any one piece of accumulated image information about the projection area with image information about the projection area most recently captured by the imaging device; and a safety control circuit executing safety control to change a projection condition for the projection device when an abnormality is detected in the projection area by the analysis circuit.

Abstract: A projection device is provided for finally displaying a clear desired target image while shortening time until the target image is displayed, the projection device including: a light source; a spatial modulation element reflecting light from the light source by a display unit displaying a phase distribution of a target image; a modulation element control means that performs, in parallel by different arithmetic units, first processing of generating a phase distribution of the target image and second processing of generating a phase distribution of the target image by processing with a calculation cost higher than the first processing, and displays a phase distribution generated by the second processing on a display surface of the spatial modulation element after displaying a phase distribution generated by the first processing on a display surface of the spatial modulation element; and a projection means that projects reflected light from the spatial modulation element.

Abstract: A laser light source (110) emits a light that is a laser light. A projection control unit (120) controls, on the basis of image information, the intensity distribution of a light to be projected, thereby generating an image. A projection unit (130) projects the light as controlled by the projection control unit (120). A measurement unit (140) measures the intensity of the light projected from the projection unit (130). A distribution calculation unit (150) calculates, on the basis of the image information, the intensity distribution of the light to be projected from the projection unit (130). A selection unit (160) selects that partial evaluation area of the image which is to be used for determination. A determination unit (170) determines, on the basis of both the light intensity distribution, in the evaluation area, calculated by the distribution calculation unit (150) and the light intensity, in the evaluation area, measured by the measurement unit (140), whether any abnormal projection has occurred.

Abstract: A three-dimensional object-measurement device comprising: a laser beam irradiation unit which irradiates a laser beam; a focal length changing unit which changes a focal length of the laser beam; an imaging unit which images a reflected light which is a reflection of the laser beam on an object, and generates image data; a control unit which changes the focal length by controlling the focal length changing unit, irradiates the same point on an object to be measured with the laser beam a plurality of times while varying the focal length, and makes the imaging unit generate the plurality of image data; and a distance calculation unit which calculates a distance to the object to be measured by processing the plurality of image data.

Abstract: Provided is an irradiation system for reliably detecting a desired detection target and precisely irradiating marking light on the detected detection target. The irradiation system includes: a server device detecting, by authentication processing, a detection target from image data capturing a monitored area, generating, from each piece of a plurality of pieces of image data captured in a time span including a capture time of image data in which the detection target is detected, lightweight data obtained by lightening an amount of data in the plurality of pieces of image data, and transmitting tracking data obtained by aggregating a plurality of pieces of generated lightweight data; and a terminal device capturing the monitored area and outputting image data, transmitting the captured image data to the server device and also receiving the tracking data from the server device, and irradiating light on the detection target, based on the received tracking data.

Abstract: A projection device is provided for finally displaying a clear desired target image while shortening time until the target image is displayed, the projection device including: a light source; a spatial modulation element reflecting light from the light source by a display unit displaying a phase distribution of a target image; a modulation element control means that performs, in parallel by different arithmetic units, first processing of generating a phase distribution of the target image and second processing of generating a phase distribution of the target image by processing with a calculation cost higher than the first processing, and displays a phase distribution generated by the second processing on a display surface of the spatial modulation element after displaying a phase distribution generated by the first processing on a display surface of the spatial modulation element; and a projection means that projects reflected light from the spatial modulation element.

Abstract: A projection device is provided in order to improve contrast of a target image projected by using a phase modulation type spatial modulation element and also preventing unnecessary light from being projected. The projection device includes: a projection means that includes a light source, a spatial modulation element including a display part that displays a phase distribution of a target image and reflecting light from the light source, and an opening frame through which reflected light from the spatial modulation element passes; and a control means that causes the display part of the spatial modulation element to display a phase distribution generated by performing iterative Fourier transform processing by using an amplitude distribution set with a signal region in which a basic figure included in the target image is arranged and a sweep-out region for sweeping optical noise out of the signal region.

Abstract: A light irradiation device includes: at least one imaging means that images a monitoring region to continue to accurately irradiate a moving target with light; at least one projection means that irradiates the monitoring region with signal light; a control means that controls the imaging means to image the monitoring region and controls the projection means to emit the signal light; at least one propeller that moves the own device in the air; and a flight control means that controls flight of the own device by controlling the propeller, the control means controlling, when recognizing a light irradiation target to be irradiated with the signal light on image data imaged by the imaging means, the projection means to emit the signal light toward the light irradiation target.

Abstract: In order to project an image excluding zero-order light without adding extra modulation elements or pixels, without applying distortions, and without reducing luminance, a projection device includes: a phase modulator that modulates the phase of incident laser light; a Fourier transform lens that performs Fourier transformation on laser light, whose phase is modulated by the phase modulator; a mirror disposed on an image formation surface by the Fourier transform lens, and configured to reflect the laser light subjected to Fourier transformation by the Fourier transform lens; and a projection lens that enlarges the light reflected by the mirror and projects the light as projected light. The mirror guides zero-order light included in the Fourier-transformed laser light in a direction different from a direction of the projection lens, and reflects the light excluding zero-order light toward the projection lens.

Abstract: A laser light application unit (2100) has a laser light source for applying laser light. A control information acquisition unit (2200) acquires control information indicating each of a plurality of directions in which an image is to be irradiated. A control unit (2300) controls an interface device (2000) such that the image is irradiated in each of the plurality of directions indicated by the control information. The laser light applied by the laser light application unit (2100) is incident on a first light collection unit (2400). The first light collection unit (2400) diffracts the incident laser light such that the laser light forms the image that is not similar to that at the time of incidence.

Abstract: Provided are a projection apparatus and an interface apparatus that have a small size and low power consumption and can perform high-resolution multicolor display, without color breakup. The projection apparatus includes a light source emitting laser beams of a plurality of colors, a modulation means that has a phase-modulation-type modulation element including display regions corresponding to each color of the laser beams of the plurality of colors emitted from the light source and modulates incident laser beams, an unnecessary component removal means that removes the unnecessary components, which are generated by the modulation of laser beams of other colors mixed in the display regions corresponding to the laser beams of the plurality of colors, from the laser beams modulated by the modulation means using wavelength selection; and a projection means that projects light from which the unnecessary components have been removed by the unnecessary component removal means.

Abstract: An illumination device comprises a light source that includes a solid-state light source whose peak wavelength is set in the red wavelength band, a light source that includes a solid-state light source whose peak wavelength is set in the green wavelength band, a light source that includes a solid-state light source whose peak wavelength is set in the blue wavelength band, and a color synthesis optical element that combines P-polarized colored light incident from one light source and S-polarized colored light incident from the other two light sources. One light source includes at least one solid-state light source whose peak wavelength is set in the wavelength band of the color corresponding to one of the other light sources.

Abstract: In order to provide an interface that has input functionality with high recognition precision, this interface device (100) is provided with an imaging unit (110), a control unit (120), and a projection unit (130). The protection unit (130) projects projected video (300). The imaging unit (110) captures video of the area in which the projected video (300) is being projected. If captured video captured by the imaging unit (110) contains both the projected video (300) and a user-input object (400), then on the basis of the relationship between the position of the projected video (300) in the captured video and the position of the user-input object (400) in the captured video, the control unit (120) generates user-input information by recognizing user input being performed using the user-input object (400).

Abstract: An illumination device comprises a light source that includes a solid-state light source whose peak wavelength is set in the red wavelength band, a light source that includes a solid-state light source whose peak wavelength is set in the green wavelength band, a light source that includes a solid-state light source whose peak wavelength is set in the blue wavelength band, and a color synthesis optical element that combines P-polarized colored light incident from one light source and S-polarized colored light incident from the other two light sources. One light source includes at least one solid-state light source whose peak wavelength is set in the wavelength band of the color corresponding to one of the other light sources.

Abstract: A first dichroic mirror (2a) and a second dichroic mirror (2b) are formed on the bonding surfaces between four right angle prisms (1a-1d) so as to intersect. The first dichroic mirror (2a) transmits, of visible light of P-polarization, at least the light of a specific wavelength band and reflects, of visible light of S-polarization, at least the light of the specific wavelength band. The second dichroic mirror (2b) transmits, of visible light of P-polarization, at least light of the specific wavelength band and transmits, of visible light of S-polarization, at least light of the specific wavelength band. The cutoff wavelengths with respect to S-polarized light of both dichroic mirrors (2a and 2b) are set within ranges of bands other than those of the three primary colors of light.

Abstract: Provided is a technology of projecting bright images at one time in a plurality of directions by means of a projector which is small and light weight. An interface apparatus is provided with: a laser source that radiates laser light; an element that modulates the phase of inputted laser light, and outputs the light; an image unit that captures a subject; and a control unit, which detects the subject captured by means of the image unit, determines, based on the results of the recognition, an image to be formed based on the light outputted from the element, and controls the element such that the determined image is formed.

Abstract: An illumination device comprises a light source (3a) that includes a solid-state light source whose peak wavelength is set in the red wavelength band, a light source (3b) that includes a solid-state light source whose peak wavelength is set in the green wavelength band, a light source (3c) that includes a solid-state light source whose peak wavelength is set in the blue wavelength band, and a color synthesis optical element (1) that combines P-polarized colored light incident from one light source (3b) and S-polarized colored light incident from the other two light sources (3a and 3c). One light source (3c) includes at least one solid-state light source whose peak wavelength is set in the wavelength band of the color corresponding to one of the other light sources (3b).

Abstract: A laser light source (110) emits a light that is a laser light. A projection control unit (120) controls, on the basis of image information, the intensity distribution of a light to be projected, thereby generating an image. A projection unit (130) projects the light as controlled by the projection control unit (120). A measurement unit (140) measures the intensity of the light projected from the projection unit (130). A distribution calculation unit (150) calculates, on the basis of the image information, the intensity distribution of the light to be projected from the projection unit (130). A selection unit (160) selects that partial evaluation area of the image which is to be used for determination. A determination unit (170) determines, on the basis of both the light intensity distribution, in the evaluation area, calculated by the distribution calculation unit (150) and the light intensity, in the evaluation area, measured by the measurement unit (140), whether any abnormal projection has occurred.

Abstract: Disclosed is three-dimensional video viewing system (1) including: display system (2) that displays three or more videos of different parallaxes in a time-division multiplexing manner, and outputs a control signal that indicates a switching timing of the videos; input means (7) for designating an arbitrary display mode among a plurality of display modes in which a plurality of three-dimensional videos different from one another in three-dimensionality are defined by a combination of two of the three or more videos; two shutters that switch a state between light transmission and light blocking; and a shutter drive circuit that specifies the switching timing of the two videos corresponding to the display mode designated by input means (7) based on the control signal, and independently controls opening/closing of the shutters at the specified switching timing of the videos.

Abstract: A fluorescent screen includes a phosphor layer including a phosphor that absorbs excitation light to emit fluorescence, a reflecting layer that is provided on one surface of the phosphor layer so as to transmit the excitation light and to reflect, to the phosphor layer, a part of fluorescence that is emitted from the phosphor and that exits from the one surface; and a plurality of holes that penetrates the reflecting layer.