Abstract: A feeding mechanism is used to adjust the distance between a reduction side lens group and an object plane for back focus adjustment. A rotation angle adjustment mechanism capable of rotating action independent of rotating action performed in the back focus adjustment is used to adjust the rotation angle by which at least part of the reduction side lens group is rotated.

Abstract: The invention relates to a wavelength converter including a rotating device, a substrate rotated by the rotating device, a wavelength conversion element provided on a first surface of the substrate, and a heat sink that is provided on a second surface facing away from the first surface and is a member different from the substrate. The heat sink includes a plurality of fins, and the substrate is formed of a light transmissive member.

Abstract: A light source apparatus includes a light source unit and an output unit. The light source unit includes at least one solid-state light source capable of outputting light in a predetermined wavelength range as output light. The output unit includes a light emitter and a base unit. The light emitter is excited by the output light from the light source unit and emits visible light with a wavelength different from a wavelength of the output light. The base unit is rotatable about a predetermined rotation axis and contains a crystalline member having a crystal axis direction set to a direction different from a direction orthogonal to an optical axis direction of the output light, the light emitter being supported in the optical axis direction. The output unit is capable of outputting combined light containing the light in the predetermined wavelength range and the visible light emitted from the light emitter.

Abstract: Alight source apparatus includes alight source section having a first area and a second area, a first condensing optical system, a second condensing optical system, a wavelength conversion element, a reflection element, and a wavelength selective polarization element. The first area and the second area respectively emit a first light ray flux and a second light ray flux. The first light ray flux passes through the first condensing optical system to excite the wavelength conversion element. The excited wavelength conversion element emits fluorescence. The second light ray flux passes through the wavelength selective polarization element and the second condensing optical system to enter the reflection element. The wavelength selective polarization element transmits the fluorescence irrespective of the polarization state of the fluorescence to combine the second light ray flux reflected by the reflection element with the fluorescence.

Abstract: A projection-type image display device includes a light source, a phosphor, a filter, and a filter driver. The light source emits blue illumination light. The phosphor generates yellow illumination light, which includes red illumination light and green illumination light from a part of the blue illumination light, and reflects the blue illumination light and the yellow illumination light. The filter reflects the blue illumination light, which is reflected by the phosphor, toward the phosphor, and transmits the yellow illumination light therethrough. The filter driver controls the reflection amount of the blue illumination light toward the phosphor by controlling the insertion amount of the filter onto the optical path of the blue illumination light. The phosphor generates yellow illumination light also from the blue illumination light reflected by the filter.

Abstract: An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section.

Abstract: Disclosed embodiments provide a heat dissipation controlling method and an apparatus thereof for a laser projection equipment. The method includes: obtaining an ambient temperature and a compensating value of a rotating speed of a fan when a laser projection equipment is currently powered on; determining a first rotating speed value of the fan of the laser projection equipment according to the ambient temperature and first preset rotating speed information; and determining an initial rotating speed value of the fan for the current power on according to the first rotating speed value and the compensating value; taking the initial rotating speed value as a current rotating speed value; and controlling operation of the fan using the current rotating speed value to dissipate heat from the laser projection equipment. The embodiments of the present disclosure can enable promptly satisfying the demand for heat dissipation when the laser projection equipment is powered on.

Abstract: A board 2 for a projector includes a movable arm 5 for moving a projector 1 to a use position in front of a projection board 3 and to a storage position above the projection board and a cam mechanism 6 for elevating the movable arm 5 while swinging it. By elevation of the movable arm 5 by the cam mechanism 6, when the projector is positioned at the storage position, a body portion of the projector is positioned above an upper edge portion of the projection board, while when the projector is positioned at the use position, the body portion is positioned below the upper edge portion of the projection board. Even a projector with a short focal distance can be moved to the storage position and to the use position.

Abstract: The invention discloses an oscillating lens module and a projector. The oscillating lens module includes a frame, a first coil, a lens, and a second coil. The first coil and the second coil are connected to the frame and located in a magnetic field, wherein the first coil and the second coil are adapted to be electrified and to oscillate about a first axis and a second axis respectively via the magnetic field. The lens is connected to the first coil, wherein the lens is adapted to oscillate along with the first coil. An oscillation phase of the second coil is opposite to an oscillation phase of the first coil, such that forces applied on the frame by the first coil and the second coil are counterbalanced, so as to prevent the oscillating lens module from over vibrating which makes projection images shake and makes noise.

Abstract: A projector includes: a first processor that controls the projector; a second processor that controls the light source; and a storage unit that stores parameters for the second processor to control the light source. The second processor starts to control the light source based on the parameters stored in the storage unit when activated. When the parameters are changed, the first processor stores the changed parameters in the storage unit.

Abstract: A projection display device includes a plurality of reflective liquid crystal panels, a plurality of polarizers, and a combining optical system. The combining optical system includes a first incident surface to which first color light emitted from a first reflective liquid crystal panel and reflected by a combining surface of the combining optical system is incident and a second incident surface to which second color light emitted from a second reflective liquid crystal panel and passing through the combining surface is incident. The polarizes include a first polarizer, which reflects the first color light to the first incident surface, and a second polarizer which reflects the second color light to the second incident surface. An alignment direction of the liquid crystal of the first reflective liquid crystal panel is orthogonal to an alignment direction of the liquid crystal of the second reflective liquid crystal panel.

Abstract: A display device for a motor vehicle includes: a projection module for generating an image for a projection in a direction of gaze of a user of the display device along an optical path; a reflection and/or display element; a support element for the reflection and/or display element; and a holding element, comprising a protruding part relative to the reflection and/or display element. The reflection and/or display element is held between the support element and the holding element and in a fixed position relative to the support element.

Abstract: A projector has a body, a control device, a driving assembly, and a light device. The control device is mounted in the body. The driving assembly is mounted in the body and has a holding frame, a driving unit, and a transmitting unit. The holding frame has a central tube. The driving unit is electrically connected with the control device, and has a casing, a driving device, a rotating axle, a gear assembly, two limiting switches and an eccentric wheel. The light device is mounted on the holding frame, is electrically connected with the control device, and has a main light unit, a pattern film, and multiple auxiliary light units.

Abstract: A vehicle puddle lamp assembly is provided that includes a plurality of light projectors located on a vehicle and configured to illuminate different lighted image patterns on a ground surface adjacent to the vehicle. The vehicle puddle lamp assembly includes a controller for sequentially activating the plurality of light projectors to generate an animated lighted image on the ground surface. The animated image moves in a location based on a door position.

Abstract: The image projection apparatus includes a light modulator configured to perform modulation of light based on an image signal, a projection optical system configured to project the light modulated by the light modulator, an illumination optical system configured to illuminate multiple divided illumination areas of the light modulator, multiple light source units provided corresponding to the divided illumination areas, a light source controller configured to control light quantities of the respective light source units so as to change illuminances of the divided illumination areas independently, and a light detector configured to detect a non-projection light component that is not projected through the projection optical system. The light source controller is configured to control the light quantities of the respective light source units depending on the image signal and a detection result of the non-projection light component by the light detector.

Abstract: An image displaying system is provided, including an image device, first and second carrying devices. The image device receives an external image message. The first carrying device has an accommodating space. An imaging assembly is disposed at one end of the first carrying device while a virtual-image imaging assembly is disposed at the opposite end. The second carrying device has a storage space. The image device may attach to the accommodating space. When triggered, the image device transforms the external image message into a reversed image message and then projects the reversed image message to the imaging assembly. The virtual-image imaging assembly projects the reversed image message of the imaging assembly to produce a first image. The image device may attach to the storage space such that it projects the external image message to a target to produce a second image.

Abstract: A light source apparatus according to the present invention includes a phosphor wheel having a phosphor disposed in an annular shape on a disk-shaped base material, the phosphor serving to emit fluorescent light from excitation light, thereby forming an excitation light source having a predetermined color, and the phosphor having a discontinuous portion in a part of the annular shape, an excitation light source for emitting the excitation light with which a passage position of the circular phosphor is irradiated with respect to the phosphor wheel to be rotatively driven by the wheel motor, and a controller that controls light emission of the light source and the excitation light source synchronously with a position of the discontinuous portion with respect to an irradiation position of the excitation light.

Abstract: Disclosed is an integral intelligent desktop device comprising: a desktop portion; a display unit connected with the desktop portions with a surface of the desktop portion forming a desktop of the integral intelligent desktop device with a surface of the display unit together; a projection unit performing a projection display of displayed content of the display unit; a process unit electrically connected with the display unit and the projection unit, wherein the projection unit is built in the display unit, and the display unit is movable and/or rotatable relative to the desktop portion.

Abstract: A scanning beam display system includes an optical module, an image control module, and a display screen on which optical beams are scanned. The optical module includes a vertical adjuster placed in the optical paths of the beams to control and adjust positions of the optical beams along a generally vertical direction on the display screen, and a control unit configured to receive control instructions for the vertical adjuster and to control the vertical adjuster to be at one of a predetermined number of orientations to place the scanning optical beams at a corresponding distinct position on the display screen. The control unit is further configured to apply an adjustment offset to each orientation of the vertical adjuster such that each immediately vertically adjacent pair of beam footprints projected on the display screen resulting from the plurality of positions have a vertical overlap that is larger than a first threshold.

Abstract: A method for image processing comprising providing an opening for entrance of light; the light being capable of being formed into an image; providing at least one optical element in an optical train configured to focus light; providing a variable aperture operatively associated with the at least one optical element; the variable aperture being placed in the optical train at an image plane and comprising mask settings for shielding portions of the light; providing an imager; providing at least one processor operatively connected to the variable aperture and imager; the at least one processor configured to control the passage of the light through the variable aperture; selectively masking portions of light using the mask settings of the variable aperture; obtaining image results using the settings; comparing image results obtained by the mask settings, and determining the phase correction that provides the optimal image results.