Seiko Epson Corporation

Sophia School Corporation

Koichiro Akasaka

Tetsuji Fujita

Yasutaka Imai

Hideki Hahiro

Michifumi Nagawa

Takafumi Noda

Katsumi Kishino

Yoshitomo Kumai

Hiroyuki Shimada

Mitsutaka Ohori

Atsushi Ito

Yasuto Akatsuka

A light emitting apparatus according to the present disclosure includes a first layer made of a semiconductor monocrystal, a second layer provided at the first layer and having a crystal orientation not continuous with the crystal orientation of the first layer, and a columnar crystal structure including a light emitting layer and extending from the second layer.

Light emitting apparatus, method for manufacturing light emitting apparatus, and projector

A light emitting apparatus includes an electrode and a laminated structure. The laminated structure includes an n-type first semiconductor layer, a light emitting layer, a p-type second semiconductor layer, a tunnel junction layer, and an n-type third semiconductor layer. The electrode is electrically connected to the first semiconductor layer. The first semiconductor layer, the light emitting layer, the second semiconductor layer, the tunnel junction layer, and the third semiconductor layer are arranged in a presented order. The light emitting layer and the first semiconductor layer form a columnar section.

Light emitting apparatus and projector

A method of manufacturing a light source device includes the steps of providing a mask layer to a substrate, providing the mask layer with a plurality of first openings and at least one second opening, and growing columnar parts having a light emitting section from the plurality of first openings, and growing a structure from the second opening.

Method of manufacturing light emitting device, light emitting device, and projector

A light emitting device includes a substrate, and a laminated structure provided on the substrate, wherein the laminated structure has a plurality of columnar portions, the columnar portion contains a material having a wurtzite-type crystal structure, in a plan view as seen from a layered direction of the laminated structure, the plurality of columnar portions are arranged in a square lattice form or rectangular lattice form, a line passing through centers of the adjacent columnar portions is inclined relative to m-planes of the columnar portions located between the centers of the adjacent columnar portions, and vertices of the adjacent columnar portions are not placed on the line.

Light emitting device, method of manufacturing light emitting device, and projector

In a wire grid polarization element, a second light transmissing substrate is disposed on first surface side of the first light transmissing substrate on which a metallic wire grid is formed, and on the first surface of the first substrate, a recessed portion is formed in a region overlapping a region where the wire grid is formed in plan view. For this reason, it is possible to secure a space in which the wire grid is disposed between the first substrate and the second substrate without using a spacer. In addition, at the time of sealing the space in which the wire grid is disposed, the first substrate and the second substrate are bonded to each other on the outer side of the recessed portion.

Wire grid polarization element and projection type display apparatus

A lens array including a base which has a plurality of concave sections. The concave sections are arranged in a first direction, a second direction which is orthogonal or almost orthogonal with the first direction, and a third direction which intersects with the first direction and the second direction. A thickness of the base between the concave sections arranged with the first direction or the second direction is thinner than a thickness of the base between the concave sections arranged with the third direction.

Lens array, method for manufacturing lens array, electro-optical device, and electronic apparatus

A liquid crystal device includes first pixels and second pixels which are adjacent to one another and are partitioned by light shielding portions. The liquid crystal device also includes an element substrate, an opposing substrate which is disposed to oppose the element substrate, a liquid crystal layer which is disposed between the element substrate and the opposing substrate, first micro lenses which correspond to the first pixels which are disposed on the opposing substrate, and second micro lenses which correspond to the second pixels and have different lens diameters from the first micro lenses. A boundary between the first micro lenses and the second micro lenses is disposed in a region which overlaps the light shielding portions in plan view.

Electro-optical device and electronic apparatus

A microlens array is provided with a cylindrical lens and a spherical lens which are arranged in a cell, in which the cell has at least a side, a corner section, a first region, a second region, and a third region, the second region is arranged between the first region and the side, the third region is arranged between the first region and the corner section, the cylindrical lens is formed in the second region, and the spherical lens is formed in the third region. Since the light incident on a surrounding section of the microlens is concentrated by the cylindrical lens and the spherical lens, it is possible to realize the microlens array with high light utilization efficiency.

A liquid crystal device comprising: a first lens array that is provided to be closer to a light incident side of the liquid crystal device than the light shielding portion, a second lens array that is provided between the first lens array and the light shielding portion. The second lens array includes a plurality of first lenses each of which has a surface convex toward the light shielding portion, and the second lens array includes a first slit which is provided between two first lenses adjacent to each other among the plurality of first lenses of the second lens array so as to extend toward the light shielding portion.

Liquid crystal device, electronic apparatus, and method of manufacturing liquid crystal device

A microlens substrate will warp when an oxide film is formed and annealed before forming a mask in order to adjust the etching rate of wet etching. Accordingly, a film exerting a stress that cancels out this warping is formed upon a microlens. This film functions as an optical path length adjusting layer.

Growing community of inventors

Ina, Japan

Koichiro Akasaka