Class / Patent application number | Description | Number of patent applications / Date published |
353088000 | SHUTTER | 17 |
20080239250 | COMPUTER PROJECTOR METHOD AND APPARATUS - A method includes detecting a person located between a projector and a surface on which a first image is projected by the projector, and automatically blacking out a portion of the first image, so that light from the projector does not fall on the face of the person. | 10-02-2008 |
20100073643 | PROJECTOR - A projector includes: a light source; a light modulation device which modulates a light emitted from the light source and forms image light; a projection device which magnifies and projects the image light; and an exterior casing, wherein on a light exiting surface for the image light of the exterior casing, a first opening is formed and a projection direction change unit which opens and closes the first opening is provided, and the projection direction change unit has: a cover which has a second opening for passing the image light from the projection device and which is provided rotatably in an off-plane direction with respect to the light exiting surface and thus opens and closes the first opening; a shutter which is movably provided along an inner surface of the cover and thus opens and closes the second opening; and a reflection mirror which is provided on an inner surface of the shutter and reflects the image light from the projection device. | 03-25-2010 |
20100188643 | PROJECTOR APPARATUS - A projector apparatus includes: a case; a light source which is provided in the case and emits light by supply of power; an opening provided in the case; an image projection unit that generates image projection light from light of the light source and emits the image projection light through the opening in order to project an image onto a screen; a shutter which is moved to a block position at which the opening provided in the case is blocked or to an open position at which the opening is opened; and a light leakage section which provides notification that the power is being supplied to the light source by allowing some light beams of the light source or some light beams of the image projection unit to leak to the outside of the case in a state where the shutter is located at the block position. | 07-29-2010 |
20100201957 | PROJECTOR - A projector includes: a projection optical device; an exterior housing; a shutter; and a support member, the shutter and support member are provided with an engagement structure including an engagement protrusion which being provided on either one of them, protrudes along a vertical axis, and an engagement groove which being provided on the other, and extending in a direction in which the shutter moves, guides a movement of the engagement protrusion by the engagement protrusion being inserted therein, and the engagement groove is provided in such a way that a start end at which the engagement protrusion is positioned in the closed position is positioned to the projection optical device projection side of a finish end at which the engagement protrusion is positioned in the open position. | 08-12-2010 |
20110096301 | IMAGE PROJECTION APPARATUS WITH SHUTTER UNIT - The image projection apparatus includes a light modulating element, a projection lens configured to project light modulated by the light modulating element onto a projection surface, an optical unit configured to introduce light from a light source to the light modulating element, and to introduce the light from the light modulating element to the projection lens, a shutter unit disposed between the optical unit and the projection lens, and configured to be capable of shutting to block the light from the optical unit from entering the projection lens. A controller is configured to set an operation state of the light modulating element such that, in a state where the shutter unit is shut, an intensity of the light reaching the shutter unit from the optical unit becomes smaller than that in an entire white display state. | 04-28-2011 |
20110116056 | IMAGE PROJECTION APPARATUS HAVING SHUTTER MECHANISM FOR HIDING PROJECTION IMAGE - An image projection apparatus | 05-19-2011 |
20120154765 | VIDEO PROJECTOR - A video projector for projecting light of an image includes a shutter capable of blocking the light of an image. The shutter includes a plate member movable between a light blocking position, at which the plate member blocks the light of an image, and a non-blocking position, at which the plate member does not block the light of an image. An accommodation body accommodates the plate member. A drive mechanism moves the plate member. The plate member includes an irradiated portion that is irradiated with the light of an image when the plate member is located at the light blocking position. The irradiated portion includes a central part from which a projection projects in a thicknesswise direction of the plate member. | 06-21-2012 |
20130027675 | DISPLAY ELEMENT, DISPLAY DEVICE, AND PROJECTION DISPLAY DEVICE - The present invention includes light valve section ( | 01-31-2013 |
20130128242 | Projector Having A Dynamically Positioned Shutter - A projector includes: a projection optical device; an exterior housing; a shutter; and a support member, the shutter and support member are provided with an engagement structure including an engagement protrusion which being provided on either one of them, protrudes along a vertical axis, and an engagement groove which being provided on the other, and extending in a direction in which the shutter moves, guides a movement of the engagement protrusion by the engagement protrusion being inserted therein, and the engagement groove is provided in such a way that a start end at which the engagement protrusion is positioned in the closed position is positioned to the projection optical device projection side of a finish end at which the engagement protrusion is positioned in the open position. | 05-23-2013 |
20130229635 | PROJECTION LENS AND PROJECTION DEVICE - A projection lens provided is for projecting an image beam. The projection lens is disposed on a transmission path of the image beam and includes a first group of lenses and a second group of lenses. The first group of lenses includes a first spherical lens and a first aspheric lens. After the image beam passes through the first group of lenses, an intermediate image is formed between the first group of lenses and the second group of lenses, in which the first aspheric lens is the lens in the first group of lenses closest to the second group of lenses. A projection device using the projection lens is also provided. The projection device further includes a planar reflector on the transmission path of the image beam. | 09-05-2013 |
20130265554 | COMPACT LASER PROJECTION SYSTEMS AND METHODS - An automated adaptive optics and laser projection system is described. The automated adaptive optics and laser projection system includes an adaptive optics system and a compact laser projection system with related laser guidance programming used to correct atmospheric distortion induced on light received by a telescope. Control of the automated adaptive optics and laser projection system is designed in a modular manner in order to facilitate replication of the system to be used with a variety of different telescopes. Related methods are also described. | 10-10-2013 |
20140327888 | PROJECTION ZOOM LENS AND PROJECTION TYPE DISPLAY DEVICE - A projection zoom lens substantially consists of a negative first lens group and a positive second lens group, in this order from the magnification side. The first lens group substantially consists of a first lens which is a negative meniscus lens with a convex surface toward the magnification side. The second lens group substantially consists of a positive second lens, a third lens which is a positive meniscus lens with a convex surface toward the magnification side, a negative fourth lens, and a positive fifth lens, in this order from the magnification side. The first lens group and the second lens group move along the direction of the optical axis while changing magnification. At least one of the positive lenses within the entire system has an Abbe number and a refractive index within a predetermined range. The refractive indices of the first to third lenses satisfy a predetermined conditional expression. | 11-06-2014 |
20150355534 | Light Directing Device and Method of Use - The light directing device of the present invention is comprised generally of a housing unit with at least one orifice, a light source inside the housing unit, at least one movable shield, a means for controlling the movable shield(s), and a means for controlling the light source. Also disclosed is a method of directing light wherein the movable shields are selectively moved to block one or more of the orifices in the housing unit and the light is passed from the light source through the orifices not blocked by the movable shield and projecting the passed light onto a surface that projects an image. In an alternative embodiment, the passed light is onto a medium that produces an image. | 12-10-2015 |
353091000 | Solenoid operated | 2 |
20090174869 | Projection display and optical aperture unit - A gear portion meshing with the first step of a pinion gear at the side of a motor, which is a driving unit of optical aperture mechanism, is designed to be a two-gears composition of a gear portion abutting on one side surface of the channel of the pinion gear, and a gear portion abutting on the other side surface of the channel of the pinion gear. | 07-09-2009 |
20100060865 | ELECTRONIC DEVICE WITH OPENING/CLOSING DOOR - An electronic device with an opening/closing door of the present invention includes a device body in which an opening is defined, a shutter system capable of covering and exposing the opening, and a loosely fixing mechanism. The shutter system includes a door capable of moving back and forth between a closed position for covering the opening and an open position for exposing the opening, an arm swingably supported by the device body and having a front end engaging with the door, a motor for opening and closing the door by driving the arm, and a controller for controlling the operation of the motor. The controller is capable of switching the function of the motor between an electric motor and an electric generator. The loosely fixing mechanism is linked to the arm of the shutter system, and loosely fixes the arm when the door is placed at the open position, while loosely fixing the arm when the door is placed at the closed position. The controller causes the motor to function as an electric motor in the process of opening and closing the door, while causing the motor to function as an electric generator when the door is loosely fixed at the open position or at the closed position. | 03-11-2010 |
353093000 | Dissolve type | 2 |
20100231871 | PROJECTOR - A projector includes: a light source device; an optical modulation device configured to modulate a luminous flux emitted from the light source device in accordance with image information, forming an image; projection optical device configured to project the image; a shutter device including a light shielding plate which can move into and out of an optical path of the luminous flux ranging from the light source device to the optical modulation device, shields the luminous flux by the light shielding plate moving into the optical path; and a light control device which being disposed on the optical path's upstream side of the shutter device, changes the area of a light passage through which the luminous flux passes, controlling the quantity of the luminous flux. | 09-16-2010 |
20140204350 | PROJECTOR FOR PREVENTING THERMAL DETERIORATION OF A LIGHT SHIELDING MEMBER - A projector includes: a light source device; an optical modulation device configured to modulate a luminous flux emitted from the light source device in accordance with image information, forming an image; a projection optical device configured to project the image; a shutter device including a light shielding plate which can move into and out of an optical path of the luminous flux ranging from the light source device to the optical modulation device, shields the luminous flux by the light shielding plate moving into the optical path; and a light control device which being disposed on the optical path's upstream side of the shutter device, changes the area of a light passage through which the luminous flux passes, controlling the quantity of the luminous flux. | 07-24-2014 |