Patent application number | Description | Published |
20120044465 | LIGHT SOURCE UNIT, ILLUMINATION DEVICE, AND PROJECTION DISPLAY APPARATUS - A light source unit includes a cylindrical transparent substrate capable of being controlled to rotate; plural segment regions provided at a cylinder portion of a side surface of the cylindrical transparent substrate; layers of different phosphors arranged on at least two of the plural segment regions, the different phosphors being configured to emit light of prescribed wavelength bands upon receiving excitation light; and an excitation light source provided inside or outside of the transparent substrate, the excitation light source being configured to apply the excitation light to the phosphors. | 02-23-2012 |
20130107230 | LIGHT SOURCE DEVICE AND PROJECTION DISPLAY APPARATUS | 05-02-2013 |
20130201408 | LIGHT SOURCE DEVICE AND PROJECTION DEVICE INCLUDING THE LIGHT SOURCE DEVICE - A light source device includes an LD module having a plurality of small light sources such as LDs, a control device selectively controlling On/Off of a plurality of the LDs, a first optical system collecting light emitted from the LDs into one collected light, and a second optical system emitting the collected light directly or through an optical process as source light. The control device maintains a constant amount of luminescence of the light source by controlling a number of the LDs selectively turned on in order to achieve a simple configuration of the light source device and a proper gradation expression of images. | 08-08-2013 |
20130308104 | LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS - A light source apparatus includes a first reflector having a first reflection face; a second reflector having a second reflection face, the first reflection face of the first reflector and the second reflection face of the second reflector disposed opposite each other; and a plurality of light sources being disposed around a periphery of the second reflector. Light beams emitted from the plurality of light sources reflect on the first reflector and then reflect on the second reflector. | 11-21-2013 |
20140036241 | LIGHT DEFLECTOR, LIGHT SOURCE DEVICE, IMAGE PROJECTING DEVICE, AND DISPLAY DEVICE - Disclosed is a light deflector including a light-emitting element configured to emit a light beam with a substantially elliptical cross-sectional shape, and a lens configured to condense light emitted from the light-emitting element, wherein an optical axis of the light-emitting element and an optical axis of the lens are decentered and a longitudinal axis of the light beam with the substantially elliptical cross-sectional shape is arranged in a direction orthogonal to a direction of decentering on the lens. | 02-06-2014 |
20140240679 | LIGHT SOURCE UNIT AND IMAGE PROJECTION APPARATUS INCLUDING LIGHT SOURCE UNIT - A light source unit includes a light emitting element supporter to support a plurality of light emitting elements disposed with a dispersed pattern in a two-dimensional direction as a light emitting element assembly, and light emitted from the light emitting element assembly exits to a target. The light emitting element supporter includes a ventilating hole at an inner portion of two dimensional direction of the light emitting element assembly, and cooling air, supplied from a rear side of a light emitting side of the light emitting element assembly, passes through the ventilating hole to the light emitting side of the light emitting element assembly. | 08-28-2014 |
20140240680 | LIGHT SOURCE UNIT AND IMAGE PROJECTION APPARATUS INCLUDING LIGHT SOURCE UNIT - A light source unit includes a light emitting element supporter to support a plurality of light emitting elements disposed with a dispersed pattern in a two-dimensional direction as a light emitting element assembly, and light emitted from the light emitting element assembly exits to a target; a light return member disposed at a position facing a light emitting side of the light emitting element assembly while setting a space with the light emitting element supporter, the light return member returning light emitted from the light emitting element assembly toward at an inner side of two dimensional direction of the light emitting element assembly, and a flow path of the cooling air to pass through cooling air supplied from an air supply unit into the space. | 08-28-2014 |
20150042963 | LIGHT SOURCE DEVICE AND IMAGE PROJECTING APPARATUS HAVING THE SAME - A light source device includes: a first light emitting unit including a light emitting element that emits light having a predetermined wavelength range; a second light emitting unit including a wavelength conversion member that receives the light from the light emitting element and emits light having a different wavelength range different than the predetermined wavelength range; an optical unit configured to define a path of the light emitted from the light emitting element and a path of the light emitted from the wavelength conversion member; an air blowing unit configured to generate a cooling air; and a passage forming member configured to form a passage through which the cooling air flows, the passage being in contact with both of the first light emitting unit and the second light emitting unit. | 02-12-2015 |