Abstract: A space light modulating apparatus includes a modulating unit that modulates incident light based on an image signal including a plurality of pixels and a light-shielding part placed between the pixels, and a refracting unit that refracts modulated light including a group of prisms formed with a prism element that has at least a refracting surface. Light from the pixels is incident on at least a part of the prisms, and a direction of the refracting surface is such that a projection image of the pixels is guided onto a projection image of the light-shielding part on a projection surface at a predetermined distance. The refracting surface and a reference surface formed in a direction perpendicular to an optical axis make a predetermined angle.

Abstract: A light source device includes: a light source unit which supplies light; a support unit which supports the light source unit; a covering unit which covers the light source unit; a wiring unit which connects a current supply section for supplying current to the light source unit and the light source unit; and a blade disposed at a position shifted toward the support unit from the wiring unit and penetrating through the covering unit.

Abstract: The controller 170 controls the output power of the semiconductor laser device 100a depending on the temperature of the semiconductor laser device 100a acquired by the temperature sensor 130. The controller 170 references the correspondence table 510 when the sensor temperature Ts is obtained, obtains the output power PWs corresponding to the sensor temperature Ts, and controls the power supply driving circuit 150a so that the output power per unit time of the semiconductor laser device 100a will be the output power PWs. Thus increase in temperature of the semiconductor laser device is able to be prevented through reducing the output power by controlling the amount of power supplied to the semiconductor laser device.

Abstract: An optical device includes a refracting surface refracting light, a flat surface transmitting light, and a prism group including prism elements having at least the refracting surface. Here, the prism elements are arranged with a plurality of pitches therebetween on a straight line parallel to a reference surface on which the prism elements are disposed.

Abstract: A light source device includes: a light source unit emitting a light of a first wavelength; a wavelength converting element converting the light of the first wavelength into a light of a second wavelength different from the firs wavelength; an external resonator transmitting the light of the second wavelength emitted from the wavelength converting element to travel to a emission destination and reflecting the light of the first wavelength to resonate between the light source unit and the external resonator; a wavelength separating section transmitting the light converted from the first wavelength to the second wavelength in the course of traveling from the external resonator to the light source unit and reflecting the light of the first wavelength to separate the light of the first wavelength and the light of the second wavelength from each other; and a turnback section turning back the light of the second wavelength separated by the wavelength separating section toward the emission destination.

Abstract: A projector includes a laser beam source that outputs a laser beam and modulates the laser beam in a beam form based on an image signal, a scanning unit that scans the laser beam output by the laser beam source at least in one-dimensional direction, a scan driving unit that drive controls the scanning unit by a first force, a retaining unit that stops and retains the scanning unit at a predetermined position by a second force, and a light shielding unit that shields the laser beam from the scanning unit that is retained by the retaining unit. The scan driving unit releases the scanning unit retained by the retaining unit, and drives it when the first force is larger than the second force. The retaining unit stops and retains the scanning unit at the predetermined position when the second force is larger than the first force.

Abstract: A lighting device includes a light source unit which emits laser beam, an optical element which receives the laser beam and releases at least a part of the entering laser beam in a direction different from the entering direction of the laser beam as illumination light, and an illumination optical path unit which is bendable and transmits the laser beam emitted from the light source unit to the optical element.

Abstract: A screen includes a lens array having a plurality of spherical lens elements. A first length of the spherical lens elements, along a first direction at substantially a center of each of respective spherical lens elements, and a second length of the spherical lens elements, along a second direction at substantially the center of each of the respective lens elements and substantially orthogonal to the first direction, are set such that the second length is larger than the first length. A curvature center position of any one of the plurality of spherical lens elements is arranged to be at substantially a half of the first length along the first direction, with respect to a curvature center position of another spherical lens element adjacent to the lens element in the second direction.

Abstract: A laser light source device includes a laser light source that emits a laser beam as a fundamental wave and an optical wavelength conversion element that converts the fundamental wave into a second harmonic. An optical lens system including a first surface having positive power and a second surface having negative power is arranged between the laser light source and the optical wavelength conversion element. The first surface and the second surface are arranged in order from the laser light source side.

Abstract: A laser light source device includes: a laser light source that emits a laser light; and an optical wavelength conversion section that includes a ferroelectric material carrying therein a plurality of polarization inversion rows in which a polarization inversion area and a polarization non-inversion area are alternately formed in a predetermined direction, and converts the laser light directed in the predetermined direction into a second harmonic. In the laser light source device, the laser light source is disposed at a fixed position to allow any one of the polarization inversion rows to be positioned on an optical path of the laser light.

Abstract: A spatial light modulator has a modulating unit, a refracting part, and a flat part. The modulating unit includes a matrix of pixels, and a light-shielding portion between each of the pixels. The refracting part is a prism group composed of prism elements, each having at least a refracting surface. The modulated light from one of the pixels is incident on at least a portion of the prism group. The refracting surface is oriented to project an image of the pixel over an image of the light-shielding portion on a screen at a predetermined distance, making an apex with an angle with respect to a reference surface that is orthogonal to an optical axis at the apex. A distance d between the reference surface and the flat part satisfies d<0.95×?/(2×(n?1)) or d>1.05×?/(2×(n?1)), ? being a wavelength of the light, and n being a refractive index of the prism elements.

Abstract: An electrooptic device includes an electrooptic layer and a condensing substrate. The condensing substrate lets the light incident on the condensing substrate into the electrooptic layer. The condensing substrate includes a base and prisms. The prisms are disposed along the boundary region of a plurality of pixel regions. The prisms have a refraction index different from that of the base. At least a portion of the prisms is located within the base.

Abstract: A space light modulating apparatus and a projector offer a smooth image without a light-shielding part. The projector includes a space light modulating apparatus that modulates incident light based on an image signal, and that outputs modulated light, and a group of prisms installed on output-side of the space light modulating apparatus. The space light modulating apparatus includes opening sections that are a plurality of pixels arranged in a matrix form and a black matrix placed between the opening sections. The group of prisms includes prism elements each of which has at least a refracting surface. Light from one of the opening sections is incident on at least one portion of the group of prisms. A direction of the refracting surface and a tilt angle are arranged so that an opening section image is guided onto a black matrix image on a screen a distance from the group of prisms.

Abstract: An electro-optic device includes a pair of substrates, and an electro-optic material held between the pair of substrates, wherein one of the pair of substrates includes a condensing unit provided on the electro-optic material-side surface of the substrate in order to condense light incident on the substrate, and a functional layer provided to overlap at least the condensing unit in a plan view.

Abstract: An electro-optic device having a plurality of pixels arranged in a matrix pattern, including: a converging substrate formed of a transparent substrate having groove-shaped prism elements formed in an array pattern, wherein the prism elements are arranged along boundary areas of the pixels, wherein the prism elements each include a plurality of beveled portions arranged on side walls thereof in the direction of the thickness of the converging substrate, and wherein the inclination angle of the beveled portions arranged on an opening end side of each of the prism elements with respect to the normal line of the converging substrate on which the prism elements are formed is smaller than the inclination angle of the other beveled portions.

Abstract: Provided is a liquid crystal device including: a plurality of data Lines and a plurality of scanning lines which cross each other; switching elements which are provided in correspondence with intersections between the data lines and the scanning lines; pixel electrodes connected to the switching elements; pixels configured in correspondence with the pixel electrodes; an image display region configured by the plurality of pixels; a first substrate having at least the switching elements; a second substrate which faces the first substrate; and liquid crystal interposed between the first substrate and the second substrate, wherein light incident from the first substrate is modulated by the liquid crystal, a light-shielding film is provided on a light incident side of at least the switching elements of the first substrate, and at least a portion corresponding to the image display region of the second substrate includes only a transparent layer which transmits light incident to the liquid crystal.

Abstract: An electrooptical device includes a substrate having pixel regions arranged in a matrix, pixel electrodes disposed in the pixel regions of the substrate, switching elements disposed between the pixel regions of the substrate and electrically connected to the pixel electrodes, capacitors disposed between the pixel regions of the substrate to hold electrical charge on the pixel electrodes, wiring disposed between the pixel regions of the substrate, and grooves disposed in a surface of the substrate so as to extend between the pixel regions thereof. The capacitors each include a first capacitor electrode, an insulating film, and a second capacitor electrode. The wiring includes data lines and scanning lines corresponding to the switching elements. The capacitors are at least partially disposed in the grooves.

Abstract: A space light modulating apparatus includes a modulating unit that modulates incident light based on an image signal including a plurality of pixels and a light-shielding part placed between the pixels, and a refracting unit that refracts modulated light including a group of prisms formed with a prism element that has at least a refracting surface. Light from the pixels is incident on at least a part of the prisms. A direction of the refracting surface is such that a projection image of the pixels is guided onto a projection image of the light-shielding part on a projection surface at a predetermined distance. The refracting surface and a reference surface formed in a direction perpendicular to an optical axis make a predetermined angle.

Abstract: A gray scale mask having distribution of light transmittance determined for the purpose of exposing a resist layer with a predetermined pattern, wherein the distribution of the light transmittance is determined so that the resist layer having been exposed in accordance with a first resist shape would be used to form a second resist shape with an aspect ratio higher than the aspect ratio of the first resist shape.

Abstract: An image display apparatus 100 that displays an image using a light modulated according to an image signal includes a projection optical system 90 that includes a projection lens 20, a first mirror 30 that reflects a light from the projection lens 20, and a second mirror 40 that widens an angle of a light from the first mirror 30 by reflecting the light, and projects the light modulated according to the image signal from an optical engine unit 10; a third mirror 50 that reflects a light from the projection optical system 90; and a screen 50 that transmits a light from the third mirror 50. The projection lens 20 and the second mirror 40 are arranged in such a manner that an optical axis of the projection lens 20 substantially matches an optical axis of the second mirror 40, and shift the light from the optical engine unit 10 to a specific side from the optical axis of the projection lens 20.