Seiko Epson Corporation

Sophia School Corporation

Hiroki Nishioka

Katsumi Kishino

Kunio Yoneno

A display system is provided with a display device, a first imaging device, a storage device, and a processing device. The display device displays an image based on content information at a display position. The first imaging device images a human who is going to pass through the display position. The storage device stores a learned model obtained by performing machine learning on a correspondence relation between features of a behavior of the human, the content information to be used for the image, and a degree of risk of the human. The processing device obtains pre-passage behavior data representing a behavior of the human based on imaging result of the first imaging device, and determines the content information to be used for the image using the pre-passage behavior data and the learned model.

Display system, display device, and non-transitory computer-readable storage medium storing program

A light emitting apparatus includes a laminated structure including a plurality of columnar section assemblies each formed of p columnar sections. The p columnar sections each include a light emitting layer. When viewed in the lamination direction of the laminated structure, the ratio of the maximum width to the minimum width of the light emitting layer in each of q first columnar sections out of the p columnar sections is greater than the ratio of the light emitting layer in each of r second columnar sections out of the p columnar sections. The light emitting layer in each of the p columnar sections does not have a rotationally symmetrical shape. The parameter p is an integer greater than or equal to 2. The parameter q is an integer greater than or equal to 1 but smaller than p. The parameter r is an integer that satisfies r=p−q.

Light emitting apparatus and projector

A display method includes acquiring output corresponding to a movement direction of a human toward a display position of a display apparatus using a sensor, determining an orientation of a content used for alert based on the output corresponding to the movement direction, and displaying the content in the display position in the orientation using the display apparatus.

Display method and display system

There is provided a light emitting device including: a substrate; a laminated structure provided on the substrate and having a plurality of columnar portions, in which the columnar portion includes an n-type first semiconductor layer, a p-type second semiconductor layer, a light emitting layer provided between the first semiconductor layer and the second semiconductor layer, and a third semiconductor layer having a band gap larger than that of the light emitting layer, and the third semiconductor layer includes a first part provided between the light emitting layer and the second semiconductor layer, and a second part that is in contact with a side surface of the light emitting layer.

Light emitting device and projector

A light emitting apparatus including a plurality of first light emitters and a plurality of second light emitters that differ from the first light emitters in terms of resonance wavelength, in which the second light emitters are each disposed between each adjacent pair of the first light emitters, first light that resonates in the plurality of first light emitters is in phase, and second light that resonates in the plurality of second light emitters is in phase.

A light emitting device includes a substrate, and a stacked body provided to the substrate, and including a columnar part aggregate constituted by p columnar parts, wherein the stacked body includes a plurality of the columnar part aggregates, the p columnar parts each have a light emitting layer, a diagram configured by respective centers of the plurality of columnar parts has rotation symmetry when viewed from a stacking direction of the stacked body, a diametrical size of q columnar parts out of the p columnar parts is different from a diametrical size of r columnar parts out of the p columnar parts, a shape of the columnar part aggregate is not rotation symmetry, the p is an integer not less than 2, the q is an integer not less than 1 and less than the p, and the r is an integer satisfying r=p&#x2212;q.

In a light emitting device, a ridge section has first and second tapered sections respectively increasing in width from a center position toward first and second light exiting surfaces, and a connection area has third and fourth tapered sections respectively increasing in width from the center position toward the first and second light exiting surfaces. The outer edge angle of the connection area that specifies the third tapered section's width relative to the center line of an optical waveguide is greater than the outer edge angle of the ridge section that specifies the first tapered section's width relative to the center line. The outer edge angle of the connection area that specifies the fourth tapered section's width relative to the center line is greater than the outer edge angle of the ridge section that specifies the second tapered section's width relative to the center line.

In a light emitting device, a second electrode is provided over a ridge portion having a constant width in a plan view, a second cladding layer includes an electrical connection region electrically connected to the second electrode, the active layer constitutes a light waveguide through which light is guided in a region overlapping the ridge portion in the plan view, the light waveguide is provided with a first light emission surface and a second light emission surface from which the light is emitted, and, in the plan view, a width of the electrical connection region at a central position equidistant from the first light emission surface and the second light emission surface is smaller than a width of an end of the electrical connection region in an extending direction of the light waveguide.

In a light emitting device, a light waveguide is provided with a first region including a central position, a second region including a first light emission surface, and a third region including a second light emission surface. A second cladding layer includes a plurality of noncontact regions. The plurality of noncontact regions intersect the light waveguide. A ratio of an area in which the plurality of noncontact regions overlap the first region to an area of the first region is greater than a ratio of an area in which the plurality of noncontact regions overlap the second region to an area of the second region, and is greater than a ratio of an area in which the plurality of noncontact regions overlap the third region to an area of the third region.

A light emitting device includes a laminated body having an active layer, a first cladding layer, and a second cladding layer, the active layer constitutes an optical waveguide, the optical waveguide includes a first portion connecting a first exit section and a first reflecting section to each other, a second portion connecting the first reflecting section and a second reflecting section to each other, and a third portion connecting the second reflecting section and a second exit section to each other, and a current density in the first portion and a current density in the third portion are higher than a current density in the second portion.

Light emitting device, super-luminescent diode, and projector

A semiconductor light-emitting device includes: a stacked structure including a light-emitting layer, a first cladding layer, and a second cladding layer; a first electrode electrically connected with the first cladding layer; a second electrode electrically connected with the second cladding layer; and a third electrode electrically connected with the second cladding layer. The stacked structure includes an optical waveguide. The optical waveguide includes a straight waveguide portion extending from a light exiting portion along a straight line inclined to a normal of a front edge surface of the stacked structure, and a curved waveguide portion including a curved waveguide having a shape with a curvature. The density of current injected into the straight waveguide portion is higher than that of current injected into the curved waveguide portion.

Growing community of inventors

Chino, Japan

Hiroki Nishioka