Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8172405 | Lamp and optical projector A lamp includes a lampwick, a reflector, and a shade. The reflector has an opening and a bottom portion opposite to the opening. The lampwick is disposed at the bottom portion and passes through the bottom portion and at least one part of the lampwick is disposed in... | 05/08/2012 |
| 8132921 | Projection display apparatus having a cooling fan and controlling method for projection display apparatus having a cooling fan According to one embodiment, a projection display apparatus comprises an optical system configured to modulate light from a light source in accordance with an input image signal and to project modulated light onto a screen, a cooling fan configured to cool the optic... | 03/13/2012 |
| 8132922 | Filter unit and projection-type display apparatus A filter unit includes: a feeding shaft 24 around which an unused part of a roll filter 18 is wound; a take-up shaft 25 for taking up the filter from the feeding shaft; a motor 40 for rotating and driving the take-up shaft so as to take u... | 03/13/2012 |
| 8128236 | Image projecting apparatus Disclosed is an image projecting apparatus having a cooling device, which cools heat generated from a plurality of light sources respectively emitting light of different colors and heat generated from a display device simultaneously, while effectively dispersing the... | 03/06/2012 |
| 8083356 | Methods and systems for improving operation of a video projector A method of operating a video device includes determining an operating temperature, determining if the operating temperature is above normal operating temperature for the video projector, and setting the video projector in economy mode if the operating temperature i... | 12/27/2011 |
| 8038301 | Projector with heat radiating construction A projector includes a light source unit, a light source side optical system which includes a color wheel and a light guiding unit, a display device, a projection side optical system, a cooling fan, and a projector control unit. An interior of a projector casing is ... | 10/18/2011 |
| 7988301 | Heat transfer apparatus An apparatus for transferring heat between an object and a fluid, the apparatus comprising at least one set of elongate members, the elongate members each having a tip for contacting the object. The tips of the elongate members generally make a point contact with th... | 08/02/2011 |
| 7988302 | Cooling system for projection device A cooling system for cooling down a heat source of a projection device is disclosed. The cooling system includes a fan, and a control module. The control module is configured for supplying a first voltage to the fan for a first duration after the projection device i... | 08/02/2011 |
| 7976171 | Projector cooling system with time dependent temperature threshold The image projection apparatus includes a temperature detector that detects a temperature inside of the apparatus, and a controller that performs a protection operation when the temperature detected by the temperature detector is higher than a predetermined temperat... | 07/12/2011 |
| 7972013 | Light source having a holding unit with air supply port for cooling air and projector A light source includes an arc tube which emits light, a reflector which reflects the light emitted from the arc tube, and a holding unit which holds the reflector. The holding unit has an air supply port through which cooling air is introduced into the light source... | 07/05/2011 |
| 7954956 | Projection-type display apparatus A projection-type display apparatus includes an optical modulation device having a lamp emitting a light, and a projection optical system projecting the light on a screen in a magnified form, with the projection optical system including a plurality of reflection mir... | 06/07/2011 |
| 7946713 | Display apparatus A display apparatus, comprises a filter unit 33 attached on an air inlet opening 28a, having such a filter 36 that a suction negative load generating at the air inlet opening 28a formed in an upper cabinet 3 comes to ... | 05/24/2011 |
| 7942532 | Projecting device having a heat-dissipating mechanism A projecting device includes a casing, an optical engine, and a heat-dissipating mechanism. The casing includes a lower casing body and an upper casing body covering the lower casing body. The optical engine is disposed in the casing, and includes a light source mod... | 05/17/2011 |
| 7918564 | Cooling system A cooling system for a projector is provided and disposed in the projector. When a sensing temperature of the projector sensed by a thermal sensor of the cooling system is higher than a maximum temperature, a control module controls a fan to increase a rotation spee... | 04/05/2011 |
| 7891820 | Projector and method for igniting lamp The invention discloses a method for igniting a lamp of a projector. The method includes steps of: (a) sensing a first temperature difference in response to power-off of the projector; (b) in response to power-on of the projector, detecting an aftercooling time and ... | 02/22/2011 |
| 7850310 | Projection display device A projection display device may include a housing which can be placed on a placing face with a lower face portion thereof distanced from the placing face; a fan, disposed within the housing, to suction from a first air inlet formed in the lower face portion; a filte... | 12/14/2010 |
| 7762674 | Projection-type display device A projection-type display device includes a housing, at least a part of which has a hollow wall, and a light source, a light valve, a projection optical system, a reflection mirror, and a screen all disposed in a single, common housing space in the housing. In addit... | 07/27/2010 |
| 7758193 | Cooling structure for projection apparatus A projection apparatus comprises a housing and further comprises a light source, an imaging system, an optical engine, a first blower, and an axial fan installed in the housing, and an air outlet is disposed on the housing. The light source is installed adjacent to ... | 07/20/2010 |
| 7748850 | Cooling device for light source of projector An improved projector device and the cooling device therefor are provided. The provided projector device includes a light source including a lead wire, a first foil having a first front-end and a first rear-end, and a second foil having a second front-end and a seco... | 07/06/2010 |
| 7661824 | Light source module air flow cooling A light source module includes a lamp assembly, at least one temperature sensor for monitoring a temperature of the lamp assembly, and a processor coupled to the temperature sensor and the lamp assembly, the processor being configured to operate the lamp assembly at... | 02/16/2010 |
| 7631973 | Projector A projector includes an image projection device, an exterior chassis accommodating the substantially L-shaped image projection device, and a ventilation device configured to block leakage light and to insulate sound of the projector and to discharge air inside the e... | 12/15/2009 |
| 7553030 | Fan unit and optical apparatus A projector includes a fan unit having a fan, supporting members functioning as a supporting base of the fan, and at least one resilient member operatively connected to the fan. The supporting members include a first supporting portion and a second supporting portio... | 06/30/2009 |
| 7484852 | System for cooling heat emission portions in a projector A projector includes a light source unit that emits light, a lamp driving unit that supplies a driving power to the light source unit, a power supply unit that supplies a power to at least the lamp driving unit, a fan that circulates cooling air to the lamp driving ... | 02/03/2009 |
| 7481540 | Projection display device and cooling structure A display device according to the invention has a passage between an image generation device (DMD) and a lamp, wherein the passage guides airflow to the vicinity of a reflector of the lamp, and, after the airflow cools the DMD, the airflow can further cool heat gene... | 01/27/2009 |
| 7417799 | Multi-primary color display A device (300) to produce a color image using four or more primary colors. The device may include four or more transmissive spatial light modulators (309, 310, 311, 312) to modulate four or more, respective, light beams in accordance with four or more,... | 08/26/2008 |
| 7407293 | Projection type image display unit An ion wind generator is arranged in the vicinity of a light source. The ion wind generator allows an air flow by negatively ionizing air by corona discharges using negative side needle electrodes, and drawing the negatively-ionized air using a ground side mesh elec... | 08/05/2008 |
| 7399085 | Cooling fan Disclosed is a cooling fan including a fan rotated by a motor, for forcibly circulating the air, and a fan housing having a through hole with a predetermined inside diameter so that the fan can be mounted thereon. A curvature radius of the end of the inner circumfer... | 07/15/2008 |
| 7393109 | Method and apparatus for cooling optics Embodiments of methods and apparatus for cooling optics are disclosed. ... | 07/01/2008 |
| 7384154 | Temperature control system and method for projection device lenses A temperature control system and method for projection device lenses. The temperature control system includes a controllable heater for selectively heating one or more lenses pad a controller for adjusting heat from the heat source responsive to an operating conditi... | 06/10/2008 |
| 7384155 | Image display An image display, includes: an image display section for forming and displaying an image in accordance with image information to be input; and a casing for housing the image display section, in which the casing includes: a lateral portion visible from an outside, th... | 06/10/2008 |
| 7374289 | Projection type video display A shutter device can switch between a state where illuminating light from a lamp of an illuminating device is blocked (referred to as a closing state of the shutter device) and a state where illuminating light passes through (referred to as an opening state of the s... | 05/20/2008 |
| 7367679 | Light source for a display device A light source for a display device. The light source comprises a light-producing element, a reflector disposed around at least a portion of the light-producing element, a housing disposed substantially around the reflector, an airflow channel defined adjacent an ou... | 05/06/2008 |
| 7364307 | Method and system for a beam projector having data manipulation capabilities A method and system for a beam projector having data manipulation capabilities. The beam projector includes a central processing unit integral with the beam projector, a memory portion coupled with the central processing unit and a signal-receiving portion coupled w... | 04/29/2008 |
| 7360906 | Projection optical system unit and projection-type image display apparatus using the same A projection optical system unit has a lower pedestal. The lower pedestal has first and second tubular portions opened to each other. An image formation device holding plate for a DMD is mounted on the first tubular portion at a side where one opening is formed. A m... | 04/22/2008 |
| 7357519 | Optical projection device An optical projection device including a light source, a housing, an imaging unit, a projection lens and a dust protection device is provided. The light source is adopted for providing a light beam. The housing has a projection-lens-assembling opening. The imaging u... | 04/15/2008 |
| 7357514 | Methods and systems for improving operation of a video projector A video projector generates a black screen. Further, the video projector reduces the brightness of the light source which reduces the power level of the video projection system. Since the light source's power is reduced, less heat is generated by the video projector... | 04/15/2008 |
| 7355657 | Laser illuminated projection displays A projection video display includes a light source including an OPS-laser delivering laser radiation in multiple transverse modes (a multiple-transverse-mode OPS-laser). The display includes a spatial light modulator for spatially modulating the radiation from the m... | 04/08/2008 |
| 7341354 | Display device and display optical system unit A display apparatus includes a light source, and a partition wall which divides an inside of the display apparatus into an enclosing space which includes a plurality of optical elements and an outer space with respect to the enclosing space. The optical elements inc... | 03/11/2008 |
| 7334898 | Projector A light source to emit light, an optical structure constituting an optical system to modulate or combine emission light of the light source, a projection element to project exit light of from the optical structure, a flow passage to flow a cooling fluid to cool the ... | 02/26/2008 |
| 7331677 | Projection type video display A system control circuit is provided with a table storing portion. In the table storing portion, a table for a positioned-on-a-floor mode and a hung-from-a-ceiling mode, a table for upwardly-positioned, and a table for downwardly-positioned are stored. On each table... | 02/19/2008 |
