Abstract: A position detecting method includes (a) acquiring a first captured image and a second captured image using a first camera and a second camera, (b) acquiring a first image for processing and a second image for processing from the first captured image and the second captured image, (c) extracting a first region of interest image and a second region of interest image from the first image for processing and the second image for processing, and (d) determining a distance-related parameter related to a distance between an operation surface and a pointer using a convolutional neural network including an input layer to which the first region of interest image and the second region of interest image are input and an output layer that outputs the distance-related parameter.

Abstract: A position detecting method includes (a) imaging, using a first camera and a second camera, a pointer over an operation surface as a background to capture a first captured image and a second captured image, (b) creating a first calibration image and a second calibration image by performing stereo calibration on the first captured image and the second captured image, (c) extracting a first region of interest image and a second region of interest image from the first calibration image and the second calibration image, (d) creating a correlation image from the first region of interest image and the second region of interest image, and (e) determining a distance-related parameter related to a distance between the operation surface and the pointer using a convolutional neural network including an input layer to which the correlation image is input and an output layer that outputs the distance-related parameter.

Abstract: A heat cycle system includes a cooling circuit and a Rankine cycle circuit in which an organic medium circulates. The Rankine cycle circuit includes an evaporator, an expander, and a condenser. Before warm-up of an engine, a control device executes a warm-up mode in which the organic medium is circulated through the condenser, the expander and the evaporator in sequence; after the warm-up of the engine, the control device executes a waste heat recovery mode in which the organic medium is circulated through the evaporator, the expander and the condenser in sequence. In the warm-up mode, by supplying energy to the expander, the control device compresses the organic medium passing through the condenser and supplies the compressed organic medium to the evaporator; in the waste heat recovery mode, by depressurizing the organic medium passing through the evaporator by the expander, the control device recovers the energy generated by the expander.

Abstract: A first light emitter of a light emitting device includes a first lens for making first light wide-angle from a first diffusion center as a starting point, and a second light emitter includes a second lens for making second light wide-angle from a second diffusion center as a starting point. A cover lens disposed downstream of the first lens and the second lens includes a first curved surface and a second curved surface. A first curvature center as a curvature center of the first curved surface overlaps the first diffusion center of the first lens when viewed from a front-back direction, and a second curvature center as a curvature center of the second curved surface overlaps the second diffusion center of the second lens when viewed from the front-back direction.

Abstract: A light emitting device is provided with a first light emitter and a second light emitter. The first light emitter is provided with a first lens for making the light of the first light source wide-angle, and the second light emitter is provided with a second lens for making the light of the second light source wide-angle. The cover lens tilted with respect to a projection surface and disposed downstream of the first lens and the second lens has a curved surface shape, and the curvature center of the cover lens is different in position from a first diffusion center to be a starting point from which the first light is made wide-angle, and a second diffusion center to be a starting point from which the second light is made wide-angle.

Abstract: A light emitting device is provided with a first light emitter and a second light emitter. The first light emitter is provided with a first lens for making the light of the first light source wide-angle, and the second light emitter is provided with a second lens for making the light of the second light source wide-angle. A plurality of first small lenses are arranged on a first incident plane of the first lens. The first small lens has a shape in which a maximum value of an angle formed between the first incident plane and a tangent of the first small lens is larger than an angle formed between the first incident plane and first light. The second lens has substantially the same configuration.

Abstract: Cameras that are four imagers that form an imaging system are so configured as to be capable of acquiring parallax information based on two sets of parallax images that differ from each other in terms of imaging range for acquisition of the parallax information with the inter-camera distance reduced. The acquired parallax information is used to detect a pointing element on an irradiated region that is a projection screen to achieve interactive image projection.

Abstract: A light outputting apparatus includes a light outputting section that outputs light, and the light outputting section includes a light source that emits light, a collimator lens for parallelizing the light emitted from the light source, and an optical element including a plurality of lenslets that widen the light having passed through the collimator lens in a direction perpendicular to the optical axis of the light source and corresponding to a first direction that is one of first and second directions perpendicular to each other.

Abstract: A projector system includes a projector main body that obliquely projects image light and an imager that operates based on a stereographic projection scheme and captures an image of a stereographic region containing a projection region where the image light from the projector main body is projected to detect a pointing element present in the stereographic region.

Abstract: A light outputting apparatus includes a first light outputting section and a second light outputting section. The first light outputting section includes a first light source, a first collimator lens, and a first optical element that widens light having passed through the first collimator lens, and the second light outputting section includes a second light source, a second collimator lens, and a second optical element that widens light having passed through the second collimator lens. The first light outputting section and the second light outputting section are so disposed that a first optical path and a second optical path intersect each other at a point on upstream optical paths of the first and second optical elements, and that part of the light outputted from the first light outputting section and part of the light outputted from the second light outputting section overlap with each other.

Abstract: A light emitting device uses optical elements each formed of a plurality of small lenses. On that basis, the array pitch of the plurality of small lenses is set within a predetermined numerical range determined based on a proportional relationship between two values with respect to the focal distance of a collimator.

Abstract: A light emitting apparatus includes a light emitting unit. The light emitting unit includes a light source, a collimator lens, and an optical element that spreads light transmitted through the collimator lens in a direction corresponding to a width direction. The optical element has a plurality of lens groups arranged in a first direction (stacking direction), each of the plurality of lens groups has a plurality of small lenses arranged in a second direction orthogonal to the first direction and crossing an optical axis, each of the plurality of small lenses is formed to spread entering light in a direction corresponding to the width direction so that the lights spread by the small lenses adjacent in a second direction are superimposed, and the plurality of lens groups have the small lenses with the small lenses adjacent in the first direction and the second direction in different sizes from each other.

Abstract: A heat cycle system includes a cooling circuit and a Rankine cycle circuit in which an organic medium circulates. The Rankine cycle circuit includes an evaporator, an expander, and a condenser. Before warm-up of an engine, a control device executes a warm-up mode in which the organic medium is circulated through the condenser, the expander and the evaporator in sequence; after the warm-up of the engine, the control device executes a waste heat recovery mode in which the organic medium is circulated through the evaporator, the expander and the condenser in sequence. In the warm-up mode, by supplying energy to the expander, the control device compresses the organic medium passing through the condenser and supplies the compressed organic medium to the evaporator; in the waste heat recovery mode, by depressurizing the organic medium passing through the evaporator by the expander, the control device recovers the energy generated by the expander.

Abstract: An imaging section receives, as detection light, the components within a wavelength band different from the wavelength band contained in projection light (image light) that is light containing a visible wavelength band. As a result, even when the detection light and the projection light are each formed of light containing a visible wavelength band, the imaging section can reliably distinguish the detection light from the projection light and therefore detect only the detection light.

Abstract: An image display device capable of being incorporated into a projector, an HMD, or the like and capable of adjusting an image formation position for each image area, a projector, and a transmission type display device into which the image display device is incorporated. In an image display device, a refractive index distribution regarding a passing area of light emitted from an optical modulation device is changed by a pixel unit of a refractive index distribution variable panel. In a projector in which the image display device is incorporated, the refractive index distribution variable panel is inserted immediately after the optical modulation device so as to make it possible to perform focusing at all areas even for a screen (surface to be irradiated) having any shape.

Abstract: A light outputting apparatus includes a first light outputting section and a second light outputting section. The first light outputting section includes a first light source, a first collimator lens, and a first optical element that widens light having passed through the first collimator lens, and the second light outputting section includes a second light source, a second collimator lens, and a second optical element that widens light having passed through the second collimator lens. The first light outputting section and the second light outputting section are so disposed that a first optical path and a second optical path intersect each other at a point on upstream optical paths of the first and second optical elements, and that part of the light outputted from the first light outputting section and part of the light outputted from the second light outputting section overlap with each other.

Abstract: A light outputting apparatus includes a light outputting section that outputs light, and the light outputting section includes a light source that emits light, a collimator lens for parallelizing the light emitted from the light source, and an optical element including a plurality of lenslets that widen the light having passed through the collimator lens in a direction perpendicular to the optical axis of the light source and corresponding to a first direction that is one of first and second directions perpendicular to each other.

Abstract: Cameras that are four imagers that form an imaging system are so configured as to be capable of acquiring parallax information based on two sets of parallax images that differ from each other in terms of imaging range for acquisition of the parallax information with the inter-camera distance reduced. The acquired parallax information is used to detect a pointing element on an irradiated region that is a projection screen to achieve interactive image projection.

Abstract: In an imaging section (imaging device), optical filters constituting an optical filter device are inserted and extracted, and an aperture varies an f-number in accordance with the insertion and the extraction of the optical filters. Thus, during the writing operation to the surface of the projection screen, namely during the interactive projector operation, entering of the light in the wavelength band other than that of the detected light DL is suppressed while capturing the detected light DL with the necessary light intensity, and during an alignment (a calibration), the axial chromatic aberration caused by the difference in wavelength band between the pattern image light GL as the image light and the detected light DL is suppressed to achieve an improvement in accuracy.

Abstract: An imaging section receives, as detection light, the components within a wavelength band different from the wavelength band contained in projection light (image light) that is light containing a visible wavelength band. As a result, even when the detection light and the projection light are each formed of light containing a visible wavelength band, the imaging section can reliably distinguish the detection light from the projection light and therefore detect only the detection light.