Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8172408 | Lens position adjusting mechanism A lens position adjusting mechanism includes a lens, a lens attachment frame that includes a lens holding portion for holding the rim of the lens, and a holding case that sandwiches the lens attachment frame movably in a plane direction perpendicular to an optical a... | 05/08/2012 |
| 8152313 | Projection display device that displaces an optical position of an imager in conjunction with a focus adjustment A projection display device has an imager that modulates light from a light source in accordance with an image signal, a projection optical system that enlarges and projects the light modulated by the imager onto a projection plane, a focus adjustment part disposed ... | 04/10/2012 |
| 8118436 | Projection image display apparatus A projection image display apparatus has a front panel, a projection lens, a lens hood, and a lens dial. The front panel has an opening for the projection lens. The projection lens projects through the opening for the projection lens. The lens hood covers the projec... | 02/21/2012 |
| 8109642 | Projection type image display apparatus A projection type image display apparatus comprising a light source, an optical integrator, by which light outgoing from the light source is changed in distribution of illumination, a color separation optical system, by which light outgoing from the optical integrat... | 02/07/2012 |
| 8042956 | Projector apparatus, projection control method and recording medium storing projection control program A projector apparatus comprises a light source lamp which is inside a reflector, a projection system forming a light figure using a light from the light source lamp, projecting the formed light figure by an optical lens unit having an automatic focus function and pr... | 10/25/2011 |
| 8038307 | Projector with a projection position adjusting device A projector includes a projection optical device and a projection position adjusting device that includes a fixed member defining a hole having a step portion, a first plate that supports the projection optical device and a second plate disposed between the fixed me... | 10/18/2011 |
| RE42783 | Lens shift mechanism and projection type video display When an attempt to move a projection lens in a horizontal direction (crosswise) in a state where it is positioned on the upper or lower side is made, it can be moved in the horizontal direction (crosswise) up to a certain range. However, a movement restraining conve... | 10/04/2011 |
| 8007117 | Assembling mechanism An assembling mechanism for assembling a lens module of a projector to an optical engine base of the projector includes a supporting stage fixed to the optical engine base, a supporting flange fixed to the lens module, a first fastener fixed to the optical engine ba... | 08/30/2011 |
| 8007116 | Video projection device having a converter lens attachably and detachably provided A video projection device has one of a plurality of types of projection lenses replaceably loaded and projects a video on a screen at a fixed position. The video projection device includes: a converter lens which is composed of a plurality of lenses, which is afocal... | 08/30/2011 |
| 7988306 | Afocal attachment for projection lens A projection apparatus has a spatial light modulator to modulate illumination from a laser light source. A base projection lens has, from its long conjugate side to its short conjugate side, a first lens group with negative focal length and with a first lens element... | 08/02/2011 |
| 7972018 | Image projection system with auto-focus Focus adjustment for a projector which includes a projection lens having an adjustable focus position. An asymmetrically focused pattern is projected through the projection lens onto a projection screen, wherein the asymmetrically focused pattern is imaged by the pr... | 07/05/2011 |
| 7954964 | Projector having a position adjusting device that moves the projection optical device A projector includes: a projection position adjusting device that adjusts a projection position of a projection optical device. The projection position adjusting device includes: adjusting and driving units that move a first moving plate and a second moving plate. T... | 06/07/2011 |
| 7950810 | Adjustment module for adjusting a position of a lens of a projector An adjustment module is capable of adjusting a position of a lens of a projector. The adjustment module includes a base, a first tray, a second tray, at least one guide roller, and at least one boundary constrainer. The first tray is slidably disposed on the base al... | 05/31/2011 |
| 7946718 | System and method for optical calibration of a picture modulator The disclosed embodiments relate to a system and method for optical calibration of a picture modulator. More specifically, there is provided a video unit (10) comprising a modulator (18) configured to modulate a projection lens assembly (16) bet... | 05/24/2011 |
| 7931379 | Projection system, projection lens module, optical actuator and its driving method A driving method of an optical actuator is applied to a projection system. The optical actuator includes a carrier, an optical element and an actuator component. The optical element is disposed at the carrier. The actuator component drives the carrier to rotate an a... | 04/26/2011 |
| 7922343 | Lens-shifting device A lens-shifting device including a base, two fixing rods, a sliding plate, a first and a second gear set is provided. The sliding plate is slidably mounted on the fixing rods via the fixing rods. A lens is fixed on the sliding plate and the sliding plate has a rack ... | 04/12/2011 |
| 7922342 | Rotational member of projector with improved retention A rotational member inhibitable from coming off a support member is obtained. This rotational member includes a rotational portion rotatably mounted on a support member, a pair of arcuate portions provided on a side of the rotational portion closer to the support me... | 04/12/2011 |
| 7862184 | Projection distance adjustable projection display apparatus A projection display apparatus is provided with a projection distance adjustment mechanism for adjusting a distance between a projection plane and an emitting position of projection light, and provided with a focus adjustment mechanism for making a focus adjustment ... | 01/04/2011 |
| 7862183 | Speckle reduction using a tunable liquid lens A representative embodiment of the invention provides a projection system having a laser source that incorporates a tunable liquid lens and a spatial light modulator adapted to modulate light generated by the laser source to project an image on a viewing screen. The... | 01/04/2011 |
| 7819532 | Projector A projector includes a light source device, a light modulation device, and an exterior casing. The projector is arranged so as to be installed in a desktop mount position and a ceiling suspension position. The light source device includes an elliptic reflector havin... | 10/26/2010 |
| 7815318 | Projector capable of adjusting brightness and brightness uniformity A projector capable of adjusting brightness and brightness uniformity includes a light module, a light pipe, a first lens module, a second lens module and an image module. The light module generates a light ray. The light pipe includes an entrance and an exit. The l... | 10/19/2010 |
| 7806534 | Auto-focusing method and projector using the same A projector for automatically adjusting images projected onto a screen includes a detecting module for detecting a propagation time for projected ultrasonic waves sent by the projector to be echoed back by the screen and received by the projector, a processing modul... | 10/05/2010 |
| 7798657 | Projection apparatus A projection apparatus including a projection body, a support and a pivoting member is provided. The support is disposed underneath the projection body. The pivoting member serves as a pivot between the projection body and the support, and both sides of the support ... | 09/21/2010 |
| 7744227 | Projector including a turn table for shifting a lens barrel A projector includes an image forming device, a projection lens for projecting an image produced by the image forming device, and an external case which accommodates the image forming device and at least a part of the projection lens and has an opening through which... | 06/29/2010 |
| 7695145 | Projection-type display apparatus A projection-type display apparatus includes an illumination optical system (1) including a light source, a reflection-type light valve (2) having an image forming area on a to-be-illuminated surface illuminated by the illumination optical system (1... | 04/13/2010 |
| 7658499 | Projector with a linearly adjustable zoom projection lens A projector has a case, a zoom lens, a zoom ring, a control plate, a lodging element, a control rod, and a handle. The case has an opening, and the zoom ring is disposed within the case and nearby the opening, the zoom ring is moved back and forth to drive the zoom ... | 02/09/2010 |
| 7654678 | Cinewide with autoscope A video display system which combines image processing and an anamorphic lens which displays television, HDTV wide-screen format images, and Cinemascope theatre video in a constant vertical height automatically with no resolution lost to black stripes on the top and... | 02/02/2010 |
| 7635190 | Projector A projector includes a light source, an optical modulation device to form an optical image, a projection optical device, and a projection position adjusting device to adjust the projection position. The projection position adjusting device includes a fixed member, a... | 12/22/2009 |
| 7611248 | Projection lens unit and thin projector using the same A projection lens unit and a thin projector using the same are disclosed. The projection lens unit includes a plurality of lens sets for emitting light carrying an image, and a reflector arranged between adjacent ones of the lens sets or at a downstream end of the l... | 11/03/2009 |
| 7611249 | Projector A projector including a shiftable projection lens unit is disclosed. The projector includes an illumination unit adapted to emit generated light, a micro device adapted to receive the light from the illumination unit, and to produce an image using the received light... | 11/03/2009 |
| 7581840 | Focus regulator and projection apparatus having same A focus regulator is provided for simplifying and minimizing the structure of an image projector. The focus regulator includes a controller rotatably formed on a main body to be limitedly movable in the direction of the optical axis. A focus lens unit is affixed to ... | 09/01/2009 |
| 7559658 | Auto focus projector with short focus adjustment time A projector comprising a light modulating device which modulates light beams emitted from a light source, according to image information, to form an optical image; a projection optical device, the projection optical device including a projection lens, which has a pl... | 07/14/2009 |
| 7527385 | Adjustable lens module and image projector applied with the same An adjustable lens module applied to an image projector is provided. The lens is positioned in a lens barrel situated within a lens housing mounted on a frame. The adjustable lens module includes a base plate, and a first, a second and a third positioning means. The... | 05/05/2009 |
| 7500758 | Cameras and video players having image projection capabilities Projection capabilities are provided in consumer electronic devices that are used for the capture or reproduction of images, such as digital still image cameras, digital video cameras, cellular telephones, DVD players and other digital video players. Such devices ca... | 03/10/2009 |
| 7494229 | Projector and processing line specification method A projector of the invention includes: a projection lens that is movable in a direction substantially perpendicular to an optical axis to project and display an image on a projection object; an imaging structure that photographs an area including at least the projec... | 02/24/2009 |
| 7490942 | Projector with automatic focusing assistance A projector with automatic focusing assistance includes a focus control for controlling the focus of optics of the projector, and a focus control use sensor. The projector automatically displays a focus assistance element when the focus control use sensor detects us... | 02/17/2009 |
| 7484854 | Projector and pattern image display method An appropriate adjustment can be made on the basis of a gradation amplitude obtained from a photographing image even when the zoom position of a zoom lens is changed. According to exemplary embodiments a CPU obtains a zoom amount transmitted from a zoom lens positio... | 02/03/2009 |
| 7458692 | Projector apparatus A projector apparatus, comprising a light converging unit (14) for converging image light for formation of a predetermined image; a lens unit (4) for passing through the image light from the light converging unit (14) so that an image of a prede... | 12/02/2008 |
| 7434938 | Display device movable for front and rear projection A display device has a screen, a housing, a mirror, and a projector. The housing extending away from one side of the screen and has an opening. The mirror is disposed within the housing. The projector is moveable relative to the housing to selectively engage the ope... | 10/14/2008 |
| 7428110 | Optical part holding unit It is an object to provide an optical component holding unit whereby the positioning accuracy can be improved while reducing cost through facilitated assembling and ensuring reproducibility. The fitting between a cross-sectionally noncircular-shaped rectangul... | 09/23/2008 |
