14 results about "Projection system" patented technology

This invention relates to optical systems for holographic projectors. We describe a holographic image projection system, the system including: a spatial light modulator (SLM) for displaying a hologram; first optics to provide an input beam to said SLM; second optics to process an output beam from said SLM to provide a displayed image; and a hologram processor to receive image data for display and to output data to said SLM to display a hologram to provide said displayed image; and wherein at least one lens of said first optics or said second optics is encoded in said hologram.

The invention provides a mixed-light-source liquid-crystal projection light engine system. The portable liquid-crystal projection light engine system is composed of a light source module, a polarized light management module, an image signal module and a projection lens, wherein the light source module consists of a high-brightness laser, an incoherent LED (Light-Emitting Diode) solid light source, a fluorescent device and the like. The output brightness of the projection system is greatly increased, the light source module is safe and environmentally friendly, and projected images have bright color and clear quality. The polarized light management module consists of a color-combining prism, a polarization beam splitter (PBS), a polarization color-combining device and the like, and different polarization states of three-primary-color mixed light are integrated into the same polarized light to be emitted to the image signal module. The image signal module is a monolithic reflection type liquid crystal light modulation device, and image signals are loaded to the three-primary-color polarized light in sequence according to the image signals corresponding to primary colors. The projection lens is used for projecting the light carrying the image signals onto a screen.

Embodiments are directed towards a system for enabling a user to view an image on a surface. The system may include projector(s), sensor, projection surface or screen, and processor. The projectors may project light for an image onto the surface. The sensor may detect light reflected off the surface. The surface may include multiple types of surface elements, such as multiple first elements positioned as border of a display area on the surface to provide feedback regarding the surface and multiple second elements positioned within the border of the display area to reflect the image to the user. The processor may determine characteristics of the border of the display area based on light reflected to the sensor from first elements. And it may modify parameters of the image based on the characteristics of the border of the display area.

The invention discloses a vehicle-mounted projection system, and belongs to the technical field of vehicles. The system comprises a transmission module, a processing module and a laser display device, wherein the transmission module is used for receiving navigation data; the processing module is used for processing the navigation data to obtain a navigation picture; the laser display device is used for projecting the navigation picture to an appointed position at a front roadway of the vehicle. The navigation picture of the vehicle is projected to the front roadway of the vehicle in a laser display mode, the visibility is improved, and the projection effect is guaranteed.

A display system includes: a screen in which, in an area on which invisible light is incident, a scattering state where visible light is scattered and a transmission state where visible light is transmitted are switched; an image projection system to project an image of the visible light onto the screen; and an invisible light projection system to project the invisible light onto the screen and to cause an area of the screen onto which a desired portion of the image is projected to have the scattering state.

The image projection system includes a projection-type display apparatus that projects an image onto a projection plane and has a first azimuth detector, the first azimuth detector detecting a projection azimuth; an imaging apparatus that images a projection screen of the image and has a second azimuth detector, the second azimuth detector detecting an imaging azimuth; and a signal processor that performs correction processing of the image. The signal processor includes an estimation unit and a correction unit, the estimation unit estimating an inclination of the projection-type display apparatus to the projection plane on the basis of the projection azimuth detected by the first azimuth detector, the imaging azimuth detected by the second azimuth detector, and the captured image acquired by the imaging apparatus; and the correction unit correcting a shape of the projection screen on the basis of the inclination of the projection-type display apparatus estimated by the estimation unit.

The embodiment of the invention discloses a luminous device and a related projection system. The luminous device comprises a luminous light source, a first wavelength conversion layer and a first light guide component, wherein the luminous light source comprises a light emitting surface comprising a first area and a second area and is used for emitting the first light; the first wavelength conversion layer comprises a first surface and a second surface which are opposite to each other; the first surface is used for absorbing the first light emitted from the first area of the luminous light source so as to emit the received laser; the first light guide component is used for receiving the first light emitted from the second area of the luminous light source and guiding at least one part of the first light to the second surface of the first wavelength conversion layer so as to stimulate the first wavelength conversion layer; and the first light guide component is also used for guiding and emitting the emergent light of the first wavelength conversion layer. According to the luminous device, the luminous brightness of the luminous device can be improved.

A projection system being used to project an image on N numbers of regions at screen is prepared as dividing an image to be N numbers of sub images by processing unit and receiving these sub images separately by N numbers of projection units for projecting N numbers of sub images on N numbers of region at screen, sensing sub image by at least one sensing unit and transmitting these sub images to processing unit being used to calculate multiple calibration diversity value between these sub images, regulating these sub images projected on screen to eliminate calibration diversity value according to multiple calibration diversity value.

The invention discloses a position adjusting device for optical tool setting gauge projection system. The device comprises a first adjusting device and a second adjusting device which allow a projection system to have a first movement direction and a second movement direction perpendicular to each other. The first adjusting device and the second adjusting device each include a slider for driving the projection system to move so as to realize position adjustment, a pair of slide rails connected with an optical tool setting gauge and provided with tracks for slider movement, and a lead screw for driving the slider to move under the action of external force. The inventive position adjusting device is reasonable in design and smart in structure, and can flexibly, accurately and conveniently adjust the position of the projection system.

A mobile projection system consisting of a projector and an infrared camera positioned on top of the projector with a clear view of the projection when the projector is powered. The device allows, when proper software is installed, multi-pen input support enabling the user(s) to interact with the computer on the projected surface.

The invention provides a night driving road surface monitoring device. The device comprises a laser grid projection system composed of a base and a grid laser, a laser grid acquisition system and an alarm system vehicle; the grid laser is fixed on the windshield of the vehicle through the base, the grid laser projects the grid-like laser line on the front road surface, and the deformation of the laser line can reflect the flatness degree of the road surface; a CCD wide-angle image collector of the laser grid acquisition system is electrically connected to a STM data processor through a USB interface, the grid-like laser line modulated by the road surface condition is collected by the CCD wide-angle image collector and transmitted to the STM data processor for processing to obtain the flatness degree of the current road surface; the laser grid projection system projects the grid-like laser line on the road surface, the laser grid acquisition system collects the grid-like laser line information, and the STM data processor judges whether the driving is dangerous or not, if yes, alarming is carried out simultaneously. The invention has simple structure and safe operation, and providesa nighttime pavement obstacle auxiliary prompting device for a driver to reduce the occurrence of traffic accidents.