Abstract: A projection system is configured to project first and second projection images, with end portions of the first and second projection images overlapping. The projection system includes a first projector projecting the first projection image and a second projector projecting the second projection image. The first projector acquires first projection image data and a first control signal, the first projection image data representing the first projection image that is a clipping of an original projection image, the first control signal being linked to the first projection image data and being for controlling driving of the first projector. The second projector acquires second projection image data and a second control signal, the second projection image data representing the second projection image that is a clipping of the original projection image, the second control signal being linked to the second projection image data and being for controlling driving of the second projector.

Abstract: A fluorescence emitting element includes: a wavelength conversion member that is plate-shaped and includes a fluorescent material, the wavelength conversion member including a first principal surface and a second principal surface that is on an opposite side from the first principal surface; and a metal film bonded to at least one surface out of the first principal surface and the second principal surface. In a plan view of the wavelength conversion member, the wavelength conversion member includes a region that does not overlap the metal film, and the metal film includes a bonding surface that is bonded to the at least one surface, and an exposed surface on an opposite side from the bonding surface.

Abstract: Provided are an electronic device and/or a controlling method thereof. The electronic device may include a projection part; a memory storing at least one instruction; and at least one processor. The projection part may include a split prism for transmitting a part of light emitted from a light source in a front direction and reflecting a remaining part of light on at least one inclined surface in a lateral direction. The processor may be configured to convert an image corresponding to a received signal into a multi-sided image to be projected to a plurality of projection surfaces, and control the projection part to project the converted multi-sided image to the plurality of projection surfaces through the split prism.

Abstract: A convex-lensed zoetrope for providing bright, clear, and straight-on animation. An image hub retains images in series for animation, and an outer drum concentrically rotates with the image hub. The outer drum is at least partially transparent, and a plurality of convex Fresnel lenses retained along a ring shape form a lens structure retained by the outer drum. During rotation of the outer drum, the lens structure, and the inner image hub, the animation of images retained on the image hub can be viewed in a straight-on manner through the transparent outer drum and the convex lenses retained thereby. The Fresnel lenses can comprise lens sheets with an outwardly-facing lensed surface and an inwardly-facing flat surface. Animation members, such as animation strips, can be selectively applied to encircle the image hub, and alignment formations of the animation members and the image hub promote alignment of the images with the lenses.

Abstract: A holographic lighting apparatus includes at least two channels for the respective associated lighting functions. Each channel includes an edge-lit arrangement with an incoupling surface for coupling light from a light source into the arrangement, and an outcoupling surface; and a light source. The edge-lit arrangements of the channels are all included in a monolithic component having a common outcoupling surface, and each channel is arranged so as to be rotated about a surface normal of the outcoupling surface along an azimuthal arrangement angle. The component has at least one holographic structure for generating the lighting function of the relevant channel when said structure is illuminated by the light source of the channel. Also provided are a vehicle including a corresponding lighting apparatus, the use of the lighting apparatus as a display in a vehicle, and the lighting apparatus as an LED collimator.

Abstract: A lens module includes a lens assembly, an actuator, an encoder, and a controller. The actuator is connected to the lens assembly. The encoder is connected to the actuator and linked with the actuator. The encoder includes a first portion and a second portion. The first portion includes multiple areas, and each of the areas includes at least one conductor. The second portion includes multiple conductive contacts. When the actuator drives the encoder to move, the second portion moves relative to the first portion, and the encoder outputs a voltage signal according to whether the conductive contacts are in contact with the at least one conductor in the areas. The controller is electrically connected to the encoder and the actuator. The controller determines a state of the encoder according to the voltage signal. A projection device and a method for adjusting the lens module are also disclosed.

Abstract: A system and a process for accurately aligning projection mapping systems using the assistance of camera sensors. The calibration process involves first projecting a modulated gray code image sequence that allows the calibration cameras to identify a dense set of image correspondences between the calibration cameras and the projectors. The calibration cameras are then aligned to the screen surface through the selection of key points or fiducials on the screen surface that are then identified in the camera images. Once the camera(s) are aligned to the screen surface, the image correspondences between the projectors and cameras are used to determine the alignment of the projectors to the screen surface.

Abstract: An optical system includes a first optical system, a second optical system, and a third optical system. The first optical system divides an input beam into a first light and a second light. The second optical system includes a concave reflective surface which reflects the first light. The third optical system directs at least one of the first light reflected from the second optical system and the second light from the first optical system to an output optical path of the third optical system.

Abstract: The present invention provides a film disc for a story projector, configured to be inserted into a story projector main body to achieve synchronous playback of images and audio. The film disc includes a housing, a rotating disc, and an audio module. The housing is provided with a projection hole and a driving hole. The rotating disc is rotatably installed in the housing and is provided with a film sheet corresponding to the projection hole, and one side of the rotating disc is provided with a transmission member configured to mesh with a driving assembly of the story projector main body. The audio module includes an audio board and a storage unit, the storage unit stores audio data corresponding to an image on the film sheet, and the audio board is installed on the housing for data interaction with the main body.

Abstract: A calibration tool for a dynamic projection mapping system includes a rigid body, a row of at least three light emitters disposed on the rigid body, and an additional light emitter disposed on the rigid body and offset from the row of the at least three light emitters. The calibration tool also includes a sensor disposed on the rigid body and configured to detect projected light.

Abstract: A system for generating an image display for passengers within a vehicle includes a controller, an image chamber including a first display adapted to project a first image, a first reflector adapted to receive the first image from the first display and reflect the first image to the first passenger, a second display adapted to project a second image, and a second reflector adapted to receive the second image from the second display and reflect the second image to the second passenger, a transparent touch screen display positioned between the first and second reflectors and the passengers and adapted to display information to the passengers within an image plane positioned in front of the first and second images, and a linear polarizer positioned between the transparent display and the first and second reflectors and adapted to filter light traveling from the transparent display toward the first and second reflectors.

Abstract: A method of correcting a projection image includes projecting, by a projector, a first image including a plurality of control points configured to correct the projection image on a projection surface, identifying at least one first control point from the plurality of control points based on a position of at least one of hands of a user in the first image when a first gesture operation by at least one of the hands of the user is detected, and projecting, by the projector, a second image obtained by moving a position of the at least one first control point from a first position to a second position based on a position of at least one of the hands of the user in the first image on the projection surface when a second gesture operation by at least one of the hands of the user is detected.

Abstract: A projection apparatus including a projection module, a projection lens, an actuator, a distance sensor and a controller is provided. The projection module is adapted to project an image beam onto a projection surface to generate a projection image. The projection lens is disposed on a transmission path of the image beam. The actuator is connected to the projection lens and configured to adjust a focal length of the projection lens. The distance sensor is configured to sense a projection distance between the projection apparatus and the projection surface. The controller is electrically connected to the projection module, the actuator and the distance sensor, and is configured to adjust the focal length of the projection lens according to a look-up table and the projection distance sensed by the distance sensor, so as to perform automatic focusing. The lookup table includes a plurality of focal-length segments. The focal length falls within one of the focal-length segments.

Abstract: A lighting source and an endoscope are provided, and the lighting source is used for the endoscope. The lighting source includes a light-emitting diode (LED) chip and a substrate; the LED chip is arranged on and fixedly connected to the substrate, and is packaged into the lighting source; and the lighting source is circular ring-shaped or arc-shaped. The endoscope includes an endoscope tube; an objective lens, located at one end of the endoscope and at least partially located inside the endoscope tube; and the lighting source.

Abstract: A pseudo random dot pattern is easily created by a geometric approach. A pseudo random dot pattern 1A is created by arranging zigzag arrangements R at a predetermined pitch in an x direction on an xy plane while periodically altering positions thereof in a y direction, the zigzag arrangements R each including an arrangement Rb and an arrangement Rc repeatedly provided at predetermined intervals in the y direction, the arrangement Rb including dots arranged at a positive inclination, the arrangement Rc including dots arranged at a negative inclination.

Abstract: The application discloses a projection device comprising: a plurality of optical source modules; and a plurality of optical source driving circuits. Each of the optical source driving circuits includes: an optical source driving unit, for receiving and being controlled by a selection signal and a pulse width modulation signal, the pulse width modulation signal controlling a current amplitude of the drive current from the optical source driving unit to the optical source module; and a delay circuit for controlling the selection signal based on the adjusted threshold voltage to determine when to release the selection signal, the plurality of delay circuits in the plurality of optical source driving circuits release the selection signals synchronously, enabling the plurality of optical source driving circuits to synchronously output the plurality of drive currents to the plurality of optical source modules.

Abstract: The invention provides an optical apparatus configured to monitor a state of a diffuser illuminated by a light source, at least one light beam comprising at least one bundle of rays of light exiting the diffuser being for illumination of a transmissive or reflective spatial light modulator of a projector, further comprising a sampler that samples the light beam exiting the diffuser and re-directs the light beam sample towards a detection system, wherein the detection system is coupled to an analyzer that generates a signal when an anomaly is detected in the distribution of the light intensity in a cross-section of the sample of the light beam. It also provides a method of monitoring a state of a diffuser illuminated by a coherent light source.

Abstract: A control method includes displaying a display image including an adjustment image constituted by a plurality of control points, displaying a first enlarged image including a first enlarged adjustment image obtained by enlarging a part of the adjustment image, and receiving an operation input configured to select the control point using a pointing image configured to point any of the plurality of control points.

Abstract: In one aspect, a device for preventing bird strikes to an engine. The device includes a projector mounted on a component of the engine. The projector is positioned to project an image outside of the engine. In another aspect, an engine for an aircraft. The engine includes an engine component and a projector mounted on the engine component. The projector is positioned to project an image outside of the engine.

Abstract: Disclosed herein are single element dot pattern projectors with a meta-optics. The projectors include a laser light source and a metasurface chip integrated onto the laser light source. The metasurface chip includes metasurface elements spaced apart from the laser light source by a distance equal to the collimating function focal length of the metasurface chip. the laser light source produces light which is diffracted through the metasurface elements to produce a dot pattern. Projectors enabled by meta-optics lead to unique methods of integrating the meta-optic and unique functionality that can be added to the dot pattern.