Patent application number | Description | Published |
20080259283 | ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS - An illumination apparatus includes: a first dichroic mirror; a second dichroic mirror which separates the combined light into a red component light R and the green component light G; and a polarization adjuster provided on an optical path of the combined light between the dichroic mirrors. The polarization adjuster adjusts a polarization direction of a yellow component light Ye in the combined light. A second dichroic mirror separates the combined light into the red component light R on which a part of or all of the yellow component light Ye is superimposed and the green component light G on which the rest of the yellow component light Ye is superimposed. | 10-23-2008 |
20080259284 | ILLUMINATION DEVICE AND PROJECTION VIDEO DISPLAY DEVICE - An illumination device includes a first light source unit having a plurality of first light sources, and a first reflection unit for guiding light beams emitted respectively from the first light sources in an identical direction. The illumination device further includes a second light source unit having at least one second light source. A center of an optical axis of the second light source is defined in an area where a light amount distribution of light beams to be emitted from the first light source unit and reflected on the first reflection unit is relatively small. | 10-23-2008 |
20080291343 | ILLUMINATING APPARATUS AND PROJECTION IMAGE DISPLAY APPARATUS - An illuminating apparatus comprises a light source and an optical system for guiding the light from the light source to an imager such as a liquid crystal panel. The optical system has an optical element disposed for changing a traveling direction of the light traveling to the imager in accordance with a control signal. The optical element is controlled such that, out of all pixel regions on the imager, part of the light amount to be applied to low-brightness pixel regions is distributed to high-brightness pixel regions. | 11-27-2008 |
20090015796 | ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS - The illumination apparatus includes a color separator configured to separate a white light beam, emitted from a white light source, into a plurality of color component light beams, a plurality of imagers each configured to modulate a corresponding one of the plurality of color component light beams separated by the color separator and a polarization modulator provided on a light incident side of one imager included in the plurality of imagers. The polarization modulator modulates a polarization direction of a modulation-object light beam which is part of a color component light beam guided to the one imager. | 01-15-2009 |
20100033681 | ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS - An illumination apparatus includes multiple liquid crystal panels, a polarization-state adjusting element, and a cross dichroic prism. A green component light includes a central-wavelength component light, a short-wavelength component light, and a long-wavelength component light. The polarization-state adjusting element separately adjusts a polarization state of the central-wavelength component light and each of polarization states of the long-wavelength component light and the short-wavelength component light. | 02-11-2010 |
20100302512 | ILLUMINATION APPARATUS AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS - An illumination apparatus includes: a red light valve configured to modulate red component light according to a red input signal; a green light valve configured to modulate green component light according to a green input signal; a blue light valve configured to modulate blue component light according to a blue input signal; a fourth color light valve configured to modulate a fourth color component light; and a color combiner configured to combine light emitted from the red light valve, the green light valve and the blue light valve. The fourth color component light emitted from the fourth to color light valve enters a certain light valve, which is any one of the red light valve, the green light valve and the blue light valve. | 12-02-2010 |
20100328614 | ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS - An illumination apparatus includes: a polarization conversion element configured to align polarization directions of light emitted from a light source in one polarization direction; a color separation unit configured to separate the light whose polarization directions are aligned in the one polarization direction by the polarization conversion element; and a polarization adjustment element configured to adjust a polarization state of light in a predetermined wavelength band within a wavelength range of the light emitted from the light source. The polarization adjustment element is provided between the polarization conversion element and the color separation unit on an optical path of the light emitted from the light source. | 12-30-2010 |
20110069285 | ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS - An illumination apparatus includes; a first solid-state light source, a second solid-state light source, a first arrangement member provided with a first arrangement surface, a second arrangement member provided with a second arrangement surface, an optical unit configured to reduce a dispersion angle of a light beam. The first solid-state light source emits a light beam having a first directivity. The second solid-state light source emits a light beam having a second directivity greater than the first directivity. A distance from the second arrangement surface to the second light-entering surface is longer than a distance from the first arrangement surface to the first light-entering surface. | 03-24-2011 |
20110115992 | PROJECTION DISPLAY APPARATUS - Projection display apparatus | 05-19-2011 |
20110128510 | PROJECTION IMAGE DISPLAY APPARATUS - A projection display apparatus | 06-02-2011 |
20110188008 | PROJECTION DISPLAY APPARATUS - A projection display apparatus for projecting an image light onto a projection plane, includes: a detector configured to detect a state of the projection display apparatus with respect to the projection plane; and a controller configured to control a state of the image light according to the detected state. | 08-04-2011 |
20120229772 | ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS - An illumination apparatus includes multiple liquid crystal panels, a polarization-state adjusting element, and a cross dichroic prism. A green component light includes a central-wavelength component light, a short-wavelength component light, and a long-wavelength component light. The polarization-state adjusting element separately adjusts a polarization state of the central-wavelength component light and each of polarization states of the long-wavelength component light and the short-wavelength component light. | 09-13-2012 |