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...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7256841 | Projection display apparatus and method for projecting image onto a screen A projection-type display apparatus for projecting an image onto a screen includes a light source, a signal processing unit for processing an input image signal to output a first image signal representing first primary-color information R1, G1, and B | 08/14/2007 |
| 7158207 | Film projector with high efficiency illumination A motion picture film projector including a lamp house section having a lamp bulb and a reflector; a head section located in front of the lamp house section; and an optical member located proximate a junction between the lamp house section and the head section. The ... | 01/02/2007 |
| 7091670 | Safety interlock apparatus and method A safety interlock apparatus for an electrical device includes a DC power supply, a ballast power supply including a ballast control circuit that controls a ballast power circuit, and a lamp. A relatively low voltage electrical connection is present between the DC p... | 08/15/2006 |
| 6999071 | Method and apparatus for displaying 3d images The invention relates to a method for displaying three-dimensional images. In the method light beams (Le) are associated to several different screen points (P) of a screen (20). The light beams (Le) produce different views associated to ... | 02/14/2006 |
| 6980276 | Luminous source apparatus, image projecting apparatus and image projection converting apparatus A photosensor detecting light-emission quantity from a light-emission lamp is set up, in order to regulate the current supplied with the light-emission lamp from a power according to a light-quantity detecting signal from the photosensor, so as to make the light-emi... | 12/27/2005 |
| 6921185 | Work light frame with spare bulb holder A work light frame for holding a lens to an electric halogen work lamp is disclosed. The work light frame has a front and a back, and preferably has a channel-shape cross-section. A storage compartment for holding a spare bulb is incorporated into the back of the fr... | 07/26/2005 |
| 6909489 | Luminous source apparatus, image projecting apparatus and image projection converting apparatus A luminous source apparatus, an image projecting apparatus, and an image projection converting apparatus to prevent a projected image, or an electronic image obtained through electronization of the projected image from intensity variations. A photosensor detects the... | 06/21/2005 |
| 6885428 | Light source device and projection television A projection television has a unit for reflecting OFF light not advancing toward a screen of light emitted by a reflection type light modulating element and a unit for controlling the amount of the reflecting OFF light and returns the OFF light which has not been us... | 04/26/2005 |
| 6501530 | Motion picture film projector illumination system for minimizing film buckle A motion picture film projector illumination system (100) for minimizing film buckle comprises a light source (405) for producing a beam of light (416). Beam shaping optics (411) focus the light beam onto a film through an aperture (408) having an apertur... | 12/31/2002 |
| 6412972 | Digital light protection apparatus with digital micromirror device and rotatable housing There is provided a digital light projection apparatus for projecting digitally selected light beams onto a stage display to create the effect of a continuously moving image. The apparatus has a fixed housing with a luminaire and a deformable micromirror ... | 07/02/2002 |
| 6038361 | Light guide support mechanism and supporting method A light guide support mechanism to minimize light transmission loss to the extent possible that houses a light guide in hollow cones such that each of the two end surfaces of the light guide protrudes from the windows of cover members fixed to either exte... | 03/14/2000 |
| 5386257 | Apparatus for aligning the optical system of a lamphouse and a movie projector Apparatus for aligning the optical systems of a lamphouse and a movie projector in the form of a laser alignment tool having a single beam laser with a diffraction grating to split the beam into multiple beams and the laser diode module is housed in a cyl... | 01/31/1995 |
| 5208891 | Fiber-optic viewgraph projector A viewgraph projector having a light above the transparency receiver and jecting downward through the transparency is provided. The projected image is received below the transparency by a condenser lens and further transmitted by a flexible fiber-optic c... | 05/04/1993 |
| 5151725 | Apparatus and method for editing film A film editing table includes a light source mounted away from the editor's sitting position, with a light guide transmitting the light to the film editing table's optics to produce images on the table's rear projection screen with a brightness and color ... | 09/29/1992 |
| 5054909 | Lamp housing for motion picture film projector A lamp housing for a motion picture projector which provides for moving the projection lamp forward and backward, up and down, and side to side, for changing the position of the lamp with respect to the focusing reflector and the film aperture. A control ... | 10/08/1991 |
| 5015088 | Illuminating apparatus for projection purposes In an illuminating apparatus for projection purposes, in particular a film projector or television image projector by the eidophor system, four condensers are located around a source of light in a cube-shaped housing, the condensers reproducing via the us... | 05/14/1991 |
| 4916485 | Xenon optical system for cinematograph projection A film projector has side-by-side lamphouses each containing a xenon light source, light beam reflectors and a condensor lens for reshaping the reflected circular light beams into horizontal ellipsoidal light beams flattened by masking for the projection ... | 04/10/1990 |
| 4645318 | Apparatus for projecting a largely 360° motion picture image An apparatus is described for projecting a motion picture image on a screen that extends 360° around the viewers, by moving a film past a slit through which light shines, forming an image of the slit on the screen, and rapidly revolving the slit image ar... | 02/24/1987 |
| 4596451 | Crystal pre-polarizer for 3D projection system In a 3D motion picture projection system using polarized light, a light source and a reflector for imaging a convergent beam of light onto a film gate, a film with right and left stereo images at the gate, and means for projecting, polarizing and overlapp... | 06/24/1986 |
| 4560260 | Motion picture system A method is described for producing and projecting a theater quality entertainment motion picture, by photographing and then projecting the motion picture on a screen, which creates an unusually vivid impression of realism. The film frames have a resoluti... | 12/24/1985 |
| 4477160 | Motion picture system A method is described for producing and projecting a theater quality entertainment motion picture, by photographing and then projecting the motion picture on a screen, which creates an unusually vivid impression of realism. The film frames have a resoluti... | 10/16/1984 |
| 4414608 | Endoscope with adapter An endoscope with an adapter used in combination with a light source unit including a socket having an electrical contact and a light source for illumination. The adapter includes a main body portion having a first connecting portion capable of being remo... | 11/08/1983 |
| 4405218 | Shutterless optical system for viewing motion pictures A shutterless optical system for viewing motion pictures, especially suitable for an 8 mm viewer, is disclosed in which the film moves continuously in a circular path around the optical center of a lens. The motion of the film is compensated by a rotating... | 09/20/1983 |
| 4372656 | High efficiency optical projector for 3D motion pictures This invention provides a high efficiency polarized light source and system for the projection of 3D motion pictures adaptable to a standard motion picture projector device. The projected light beam is compressed into a shape more nearly approximating the... | 02/08/1983 |
| 4350417 | Apparatus to control light intensity from arc lamp An apparatus for controlling the light intensity output from an arc lamp for use with an arc lamp-illuminated projector includes a light valve to control the projector output light intensity by the selective positioning of the light valve in all or a port... | 09/21/1982 |
| 4202611 | Projector apparatus and control arrangement One or more remote control arrangements are provided for interconnection to projector apparatus including local controls. Each of the remote control arrangements includes momentary actuated push-button controls for independently controlling the forward, r... | 05/13/1980 |
| 4185899 | Combination viewer and projector A combination viewer and projector having a housing with a rear-lighted viewing screen mounted therein. The housing is adapted to receive a magazine having a length of film therein which can be advanced past an aperture in the magazine. A source of light ... | 01/29/1980 |
| 4093366 | Motion picture projector apparatus and high intensity projection arrangement A motion picture projector is provided with a high intensity projection arrangement for improved image projection that also provides a projection lamp having a longer operating life. The projector is interconnected to a power supply unit by a multiconduct... | 06/06/1978 |
| 4077705 | Motion picture projection apparatus A motion picture projection apparatus capable of selective use of two types of films with an open reel assembly and a film cartridge having mounted therein a pressure plate associated with a reflecting mirror. The apparatus is provided with a displaceable... | 03/07/1978 |
| 4061911 | Automatically switched spare lamp for a light projector A lamp system for a light projector for continuous light projection upon burn-out of a main lamp. A main lamp with a highly directional light pattern is mounted to the frame for light pattern alignment with the optical axis of the projection lens. A spare... | 12/06/1977 |
| 4023893 | Lamp and lens retrofit assembly for overhead projector A retrofit assembly for replacing a lens-containing lamp in an overhead projector. The assembly comprises a quartz-halogen lamp, having an internal reflector and an enlarged base removably mounted in the projector, and a lens holding bracket removably mou... | 05/17/1977 |
| 3998532 | Wide angle single channel projection apparatus The invention utilizes a vertically positioned arc lamp and associated lamp ollector-reflector in conjunction with depending associated secondary and projection mirrors, the projection mirror being convex and centrally apertured to form an exit pupil close... | 12/21/1976 |
| 3995153 | Optical projectors Optical projectors of the kind which supply a beam of radiation whose total ngular field 2.rho.' is determined in at least one reference plane, the angular field containing all the radiant flux, the projector also incorporating a source of radiation associ... | 11/30/1976 |
| 3937567 | Continuous motion picture projector apparatus A continuous motion picture projection apparatus for use with a film strip having two side by side data tracks each comprising a photographic image track and a synchronized sound track. The first half of the program is carried by one data track and the ot... | 02/10/1976 |
