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: A driving method for laser light source device includes: providing a laser light source device including a laser light source, a wavelength conversion element converting the wavelength of the light emitted from the laser light source, and a resonator mirror constituting a resonator structure between the laser light source and the resonator mirror; and driving the laser light source so as to cause the amount of light to decrease depending on the passage of time, compared with the amount of light by the initial driving of the laser light source.

Abstract: There is provided a liquid crystal device that displays an image through a liquid crystal. The liquid crystal device includes: a plurality of pixels that constitutes the image; a light-shielding film disposed between the plurality of pixels; an opening provided at the light-shielding film; an open surface including the opening; and a plurality of condensers provided for the plurality of pixels, the condensers collecting light rays incident on the liquid crystal into the center of the respective pixels. A ratio C/P satisfies the relation 1<C/P<2.5 where P is the diagonal length of the pixel, C is the distance between A and B, where A is the intersection point between the optical axis of the light incident on the center of the pixel and the open surface, and B is the farthest point of the condenser on the optical axis from the intersection point A.

Abstract: A laser light source device which is used for a video display device displaying video by using plural image frame data inputted from an image generating device includes a laser light source emitting laser light, a drive circuit driving the laser light source, a target light amount acquisition unit that acquires a target light amount which is a light amount necessary for displaying the image frame data, an output light amount detecting unit that detects an output light amount of the laser light source device, a control unit that controls the drive circuit so that the output light amount will be the target light amount, and a determination unit that determinates deterioration of the laser light source by using drive conditions of the drive circuit with respect to at least two different target light amounts at the time of control.

Abstract: A drive circuit for driving a semiconductor light emitting element includes a board, a first pattern formed in a first layer of the board so as to be electrically connected to an anode of the semiconductor light emitting element, and a second pattern formed in a second layer of the board so as to be electrically connected to a cathode of the semiconductor light emitting element, and the first pattern and the second pattern are formed so as to overlap with each other when viewed in a direction along a normal line of the board.

Abstract: A light source device includes: a plurality of laser light sources that emit laser light; and a light source driving section that drives at least one of the laser light sources by a first driving value that is a value less than a threshold level of at least one of the laser light sources, or by a second driving value that is a value greater than a threshold level of at least one of the laser light sources, and that varies at least one of the number of laser light sources that are driven by the first driving value and the number of laser light sources that are driven by the second driving value in the laser light sources, thereby controlling the total output of laser light emitted from the laser light sources.

Abstract: A driving method for laser light source device includes: providing a laser light source device including a laser light source, a wavelength conversion element converting the wavelength of the light emitted from the laser light source, and a resonator mirror constituting a resonator structure between the laser light source and the resonator mirror, and driving the laser light source so as to cause the amount of light to decrease depending on the passage of time, compared with the amount of light by the initial driving of the laser light source.

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: An electro-optical device includes a first substrate; a second substrate; an electro-optical material, the electro-optical material being disposed between the first and second substrates; prismatic portions that collect light incident on the first substrate, each prismatic portion being in the form of a groove having an opening, disposed in the first substrate, and being adjacent to the electro-optical material; a functional layer that drives the electro-optical material, the functional layer being disposed on a side of the first substrate, the side being adjacent to the electro-optical material; and the functional layer extending over the openings; and first light-shielding portions disposed on the second substrate, each light-shielding portion overlapping a corresponding one of the prismatic portions when viewed in plan.

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: There is provided a liquid crystal device that displays an image through a liquid crystal. The liquid crystal device includes: a plurality of pixels that constitutes the image; a light-shielding film disposed between the plurality of pixels; an opening provided at the light-shielding film; an open surface including the opening; and a plurality of condensers provided for the plurality of pixels, the condensers collecting light rays incident on the liquid crystal into the center of the respective pixels. A ratio C/P satisfies the relation 1<C/P<2.5 where P is the diagonal length of the pixel, C is the distance between A and B, where A is the intersection point between the optical axis of the light incident on the center of the pixel and the open surface, and B is the farthest point of the condenser on the optical axis from the intersection point A.

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: Exemplary embodiments of the invention provide a spatial light modulator that is inexpensive, has a long life and a high light use efficiency, and with which can be obtained a high-contrast image, and a projector disposed with the spatial light modulator. Exemplary embodiments provide a spatial light modulator including a liquid crystal layer that includes plural aperture regions AP, modulates light in accordance with image signals and emits the modulated light; and microlens elements that are disposed at an incident side of the liquid crystal layer in correspondence to the aperture regions AP and condense the light made incident so that the light passes through the aperture regions AP. The microlens elements include plural focal positions f1 and f2 that are different per plural substantially annular portions R1 and R2 around an optical axis AX.

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: Exemplary embodiments of the invention provide a spatial light modulator that is inexpensive, has a long life and a high light use efficiency, and with which can be obtained a high-contrast image, and a projector disposed with the spatial light modulator. Exemplary embodiments provide a spatial light modulator including a liquid crystal layer that includes plural aperture regions AP, modulates light in accordance with image signals and emits the modulated light; and microlens elements that are disposed at an incident side of the liquid crystal layer in correspondence to the aperture regions AP and condense the light made incident so that the light passes through the aperture regions AP. The microlens elements include plural focal positions f1 and f2 that are different per plural substantially annular portions R1 and R2 around an optical axis AX.