Abstract: A lens adjustment mechanism according to an embodiment of the present disclosure includes: a base section; a lens holding section that holds a lens having an optical axis in a Z-axis direction; an intermediate member disposed between the base section and the lens holding section; a first rotating cam that is disposed between the base section and the intermediate member, and is rotated about an optical axis of the lens; and a second rotating cam that is disposed between the intermediate member and the lens holding section, and is rotated about the optical axis of the lens. The intermediate member moves in a Y-axis direction together with the lens holding section during rotation of the first rotating cam, and restricts movement in the Y-axis direction of the lens holding section during rotation of the second rotating cam.

Abstract: An adjustable carrier structure for a lamp is described. Said adjustable carrier structure comprises an optical component carrier on which an optical component may be fastened, a coupling device for fastening the carrier structure on the lamp, and at least one threaded spindle. The latter comprises a first threaded spindle end that is mounted in an axially-fixed and non-rotatable manner on the optical component carrier, and is connected to the coupling device via a threaded socket that cooperates with the threaded spindle. In this case, the threaded socket is connected to the coupling device in an axially-fixed and rotatable manner. The threaded spindle extends essentially parallel to an optical axis of the adjustable carrier structure. A distance may be set between the first threaded spindle end and the coupling device by means of rotating the threaded socket. Moreover, a lamp having a carrier structure of this type is proposed.

Abstract: The projection image adjustment system includes: projection display apparatuses for projecting projection images; a first and a second imaging apparatus for shooting the projection images; and a controller. The controller includes: an imaging-apparatus selecting unit, a shooting-region setting unit, a pattern projection unit, and a shot-image display unit. The imaging-apparatus selecting unit selects the first or the second imaging apparatus. The shooting-region setting unit sets a first and a second charge-of-shoot region for a projection display apparatus. The first and the second imaging apparatus are respectively in charge of shooting the first and the second charge-of-shoot region. At least one projection display apparatus is shared by the first and second charge-of-shoot regions. The pattern projection unit projects a format pattern of the projection display apparatus corresponding to the first or the second charge-of-shoot region.

Abstract: A free-form surface lens is made of a transparent resin forming an oblique projection optical system including a free-form surface mirror in a projection type video display apparatus, this lens includes a lens effective region having a surface on which a predetermined free-form surface is formed, and an edge surface formed to surround the lens effective region, the lens effective region and the edge surface in a part of a circumference surrounding the lens effective region where the edge surface is not formed are joined to each other by at least either one of a curved surface and a flat surface set so as not to change a direction of a tilt of the lens effective region in vicinity of the lens effective region, and an end surface including at least either one of the curved surface and the flat surface is set as a tapered surface.

Abstract: Described are a ranging method, and an automatic focusing method and device. The ranging method comprises: acquiring a coefficient of relationship between the number of pixels and the object distance within a range of a distance between a camera and a projection lens on the basis of a preset calibrated object distance; and calculating an actual object distance according to the acquired coefficient of relationship.

Abstract: Provided is a technique capable of achieving a manually-operated lens shift mechanism in a space-saving manner in regard to a projection type image display apparatus. The lens shift mechanism includes a first base, a second base, a third base to which a projection lens is fixed, a first shift portion moves the projection lens in a vertical direction by moving the second base in the vertical direction with respect to the first base, and a second shift portion which moves the projection lens in a horizontal direction by moving the third base in the horizontal direction with respect to the second base. The first shift portion is arranged along the vertical direction to be coaxial with a first manual operation portion and a first rotation shaft. The second shift portion is arranged along the vertical direction to be coaxial with a second manual operation portion and a second rotation shaft.

Abstract: A decorative light apparatus has a housing 12, a dome 20, a power supply, a motor 30, a light board 36 having LEDs 46 surrounding the motor, a multi-surface refractive lens and a beam-splitter lens light shade. The light disk 36 supports the motor 30 directly so that alignment of the LEDs, lens and motor are always correct. The motor may further transmit vibrations into the light board which can provide a slight shimmering effect of the light passing through the lens.

Abstract: A projector includes a projection lens, a projector body, and an angle adjustment unit. In the projection lens, a U-shaped optical path is formed of optical axes CL1 to CL3. A lens barrel is a U-shaped barrel. The angle adjustment unit includes a fitting portion, a mounting flange, a fixing unit, a mount ring, and bearings. The projection lens is supported so as to be rotationally movable around the optical axis CL1. The fixing unit includes a mounting hole, a fixing screw, and a screw hole. The mounting hole is formed in the shape of an arc. The fixing screw is screwed with the screw hole through the mounting hole, so that the lens barrel is fixed to a housing.

Abstract: A projection correction method adapted to a projector. The projection correction method includes: sensing a temperature of a body of the projector, so as to obtain a first temperature value, where a focusing gear of the projector is located at a first gear position; determining whether the temperature of the body of the projector is changed, and when the temperature of the body of the projector is changed from the first temperature value to a second temperature value, the focusing gear is rotated by a predetermined distance to rotate the focusing gear to a second gear position; and determining whether a storage device stores a target gear position corresponding to the second temperature value, so as to rotate the focusing gear to the target gear position. Moreover, a projector using the aforementioned projection correction method is also provided.

Abstract: A projection system including a processing device and a plurality of projectors is provided. The projectors are disposed above a projection plane or below the projection plane. The processing device determines whether the projectors are disposed above the projection plane or below the projection plane according to a firmware setting of each of the projectors. When one of the projectors disposed above the projection plane projects a projection mode determination image, the processing device analyzes captured images captured by remainders of the projectors in respective image capture areas of the projection plane to determine projection modes of the projectors. In addition, an automatic setting method is also provided. The projection system of the invention may be readily set up based on various projection requirements.

Abstract: A lens moving mechanism includes a guide section which supports a lens mount unit on which a lens for projecting light is mounted and guides the lens mount unit in three orthogonal axis directions including an optical axis direction of the light, and a base member which supports a saddle guide unit of the guide section and is fixed to a projector main body. The saddle guide unit includes first linear motion guide devices which are fixed to the base member and guide the lens mount unit in an orthogonal-to-optical axis direction orthogonal to the optical axis direction.

Abstract: The multiple function LED project light is a hand-held and powered by DC power, and the project light has front lens has project magnify lens fit-into or install-on or built-in on center position. The project lens has below position outer-tube set assembled together so outer-tube can envelope or surrounded the lower position separated inner-tube which has image-forming unit within. While the project head move away from the project light neck by screw-thread or other extend construction to make distance between the magnify lens and image forming-unit changed to get focus adjustment functions. The said Project light may has self-prong, or project light fit within the hold-base which has prong-set both get AC current through the AC-to-DC circuit to get desired DC power for LED or SMD-LEDs or Dip-LEDs or COB-LED or other DC operated electric components to use.

Abstract: An integrated image sensor and lens assembly comprises a lens barrel holding camera lenses coupled to a lens mount. The lens mount is further coupled to an image sensor substrate that has an image sensor lying on an image plane. The optical distance between lenses and the image sensor is tuned such that the focal plane of the lenses coincides with the image plane. Due to thermal expansion, this optical distance may vary thereby to cause the focal plane of the lenses to shift away from the image plane. The integrated image sensor and lens assembly further comprises spacers that couple one or more lens elements to the lens barrel. The spacers and the lens elements are configured such that the optical distance is maintained to be constant or substantially constant.

Abstract: A projection system includes a first lens group that does not move when the projection magnification is changed with the aid of the zoom function, and the first lens group includes a correction lens group that is moved in the direction of the optical axis to correct worsened astigmatism. The projection system satisfies the following conditional expressions (1) and (2): |?BF20|<P×FNO×?2??(1) 1.5<|f1/f|??(2) where P represents the pixel pitch in an image displayed by liquid crystal panels, FNO represents the F number of the entire lens system, ?BF represents the amount of movement of the back focus position in a case where the correction lens group is moved by the amount of movement for correction of the aberration that changes when the temperature changes by 20° C., f represents the focal length of the entire lens system, and f1 represents the focal length of the correction lens group.

Abstract: Provided is a lens alignment adjustment device capable of suitably correcting an angle accuracy of an optical axis of a lens unit with respect to a projector main body. A lens alignment adjustment device is provided to a projector to retain a projection lens, and is capable of adjusting inclination of an optical axis of the projection lens with respect to the projector. The lens alignment adjustment device includes: a base plate which is retained in a predetermined posture with respect to the projector; and a lens fixing plate to which the projection lens is fixed. The lens fixing plate is rockably coupled to the base plate through intermediation of a first center pin orthogonal to an optical axis of the projection lens. First adjusting means for setting an inclination angle of the lens fixing plate with respect to the base plate about the first center pin is provided.

Abstract: A lighting device for producing scenographic light effects has a light source mounted on the frame; a light guide coupled to the light source to define an optical path along a longitudinal axis; a first mirror (5) arranged along the longitudinal axis facing the light source to reflect the light beam towards the light source; a second mirror movable with respect to the frame and facing the first mirror to reflect the light beam reflected by the first mirror.

Abstract: A lighting device for producing scenographic light effects has a light source mounted on the frame; a light guide coupled to the light source to define an optical path along a longitudinal axis; a first mirror (5) arranged along the longitudinal axis facing the light source to reflect the light beam towards the light source; a second mirror movable with respect to the frame and facing the first mirror to reflect the light beam reflected by the first mirror.

Abstract: A projector including a light source, a power supply section, a power supply control section that controls power supply from the power supply section, a projection lens that projects an image, and a projection system driver that moves the projection lens, wherein the power supply control section performs, as power supply modes, an operation mode in which power is supplied to the light source section to allow the light source section to output light and a first standby mode in which the power supply to the light source section is terminated, and in the first standby mode, power is supplied to the projection system driver to allow the projection lens to move to an attachment/detachment position where the projection lens is attachable and detachable.

Abstract: An image projection apparatus includes an acquirer configured to acquire information on a lens unit, and a controller configured to set, based on the information on the lens unit, at least one of an image orientation of a projection image and a shift direction of the lens unit.

Abstract: A microlithographic apparatus comprises an optical wavefront manipulator. The latter includes an optical element and a gas-tight cavity that is partly confined by the optical element or contains it. A gas inlet device directs a gas jet towards the optical element. The location, where the gas jet impinges on the optical element after it has passed through the cavity, is variable in response to a control signal supplied by a control unit. A gas outlet is in fluid connection with the vacuum pump so that, upon operation of the vacuum pump, the pressure within the cavity is less than 10 mbar even if the gas jet passes through the cavity.

Abstract: Systems and methods for machine vision are presented. Such machine vision includes ego-motion, as well as the segmentation and/or classification of image data of one or more targets of interest. The projection and detection of scanning light beams that generate a pattern are employed. Real-time continuous and accurate spatial-temporal 3D sensing is achieved. The relative motion between an observer and a projection surface is determined. A combination of visible and non-visible patterns, as well as a combination of visible and non-visible sensor arrays is employed to sense 3D coordinates of target features, as well as acquire color image data to generate 3D color images of targets. Stereoscopic pairs of cameras are employed to generate 3D image data. Such cameras are dynamically aligned and calibrated. Information may be encoded in the transmitted patterns. The information is decoded upon detection of the pattern and employed to determine features of the reflecting surface.

Abstract: A head-mounted display apparatus may include: a main frame, one surface of which faces a user's face; and a support part coupled to at least part of the main frame to fix the main frame to the user's face, wherein the main frame has a cavity structure such that an electronic device is mounted on an opposite surface thereof and includes a position adjustment part for adjusting the position of an electronic device, and a structure for preventing the electronic device from being tilted during the position adjustment is included in the interior of the main frame.

Abstract: A kit for creating a flat folding projection device is provided and includes a lens and a sheet defining at least a first, second, third and fourth panels, each panel separated from the other panels by at least one fold. A hole is positioned in the first panel, the hole defining an edge. A cut is positioned in the first panel adjacent to the hole such that the first panel on either side of the cut can be separated to create a space configured to receive and hold the lens therein. Further includes is one of: a light source, a translucent sheet or a light source and a translucent sheet. An envelope contains the foregoing such that a thickness of the envelope is less than ½ inches.

Abstract: There is provided a projection optical system capable of projecting an image formed on an image forming unit on a projection plane, which has an extremely short projection distance and a small size.

Abstract: An image display unit includes a first unit fixed to a receiving frame, a second unit, movably supported by the first unit, including an image generator to generate an image when light enters the image generator, and a first link unit to supportingly fix the first unit to the receiving frame, and a space between the first unit and the receiving frame adjustable by the first link unit.

Abstract: In a lens barrel of the present invention, a frame body holding an optical element is held in a frame body holding member, includes an adjuster for adjusting the position of the frame body with respect to a predetermined axis of the frame body holding member so as to be able to adjust at least one of the orientation of an optical axis in the optical element and the position of the optical element in a direction of the optical axis, and the adjuster is arranged at a position adjustable from an opening portion of a mounting member to be mounted on the frame body holding member.

Abstract: A projector includes a projection lens, a first imaging section adapted to take an image of the projection surface, and a second imaging section adapted to take an image of the projection surface with a field angle wider than a field angle of the first imaging section. The first imaging section is disposed at a first distance from an optical axis of the projection lens in a direction perpendicular to the optical axis, and the second imaging section is disposed at a second distance longer than the first distance from the optical axis of the projection lens in the direction perpendicular to the optical axis.

Abstract: A head-up display device includes a screen, a projector that projects a visual image to the screen using a projection lens, and a processor. The processor is programmed to generate a virtual image of the visual image from the projected visual image and determine an image-generation position at which the virtual image is to be generated. The screen and the projection lens are configured to be movable along an optical path of the projector. The processor is programmed to determine a screen position to which the screen is to be moved based on the decided image-generation position and determine a lens position to which the projection lens is to be moved based on the determined screen position. The projector includes a screen-drive motor that moves the screen to the determined screen position and a lens-drive motor that moves the projection lens to the determined lens position.

Abstract: An image processing apparatus includes a detection unit, a size changing unit, and a determining unit. The detection unit detects, from a first captured image obtained by capturing a projection image projected by a projection unit, a vertex of the projection image. The size changing unit reduces a size of the projection image in response to the detection unit not detecting a predetermined number of vertexes of the projection image from the first captured image. The determining unit determines a distortion correction parameter to be used for correcting a distortion of a projection image projected by the projection unit, in accordance with a detection result of vertexes by the detection unit for a second captured image obtained by capturing the size-reduced projection image in a case where the detection unit detects the predetermined number of vertexes of the size-reduced projection image from the second captured image.

Abstract: A projection apparatus includes a light source, an optical engine module, and a lens module. The lens module includes a plate having at least one through hole, a lens fixed to the plate, at least one slide assembly disposed between the plate and an optical engine housing of the optical engine module, and a position adjusting device including a movable guide member and at least one guide pillar. The plate is movably disposed on the optical engine housing through the slide assembly. The movable guide member is movably disposed between the plate and the optical engine housing. The guide pillar is disposed on the movable guide member and passes through the through hole. When the movable guide member is forced to move towards an axial direction, the guide pillar drives the plate to move on the slide assembly along the axial direction relative to the optical engine housing.

Abstract: A lens barrel includes: a first barrel; a second barrel that, with respect to the first barrel, is capable of relative movement in a direction orthogonal to the optical axis; an adjustment member for adjusting an amount of the relative movement; two adjustment member housing portions that are provided in a diametral space between the first barrel and the second barrel, are formed so as to be separate from each other in a circumferential direction and are capable of housing the adjustment member; a plurality of screws; a plurality of fastening portions for threadedly engaging and fastening the first barrel and the second barrel in parallel with the optical axis by means of the plurality of screws; and one washer member that is held in an integral manner between the plurality of screws and the plurality of fastening portions.

Abstract: An image projector includes an image forming element that is illuminated by a light from a light source, a projection optical system that projects a light output from the image forming element, a shifter that shifts the projection optical system with respect to the image forming element so as to shift a projection position, a deforming part that deforms an image formed on the image forming element, and a corrector that corrects a shift direction with the shifter on the basis of a deformation state by the deforming part.

Abstract: A scanner includes a platen having a surface supporting items for scanning, and a projector adjacent (e.g., above or below) the platen. The projector projects light displaying patterned alignment marks on the items located on the platen. The patterned alignment marks identify an alignment position for the items to be located on the platen for properly aligned scanning. The projector projects different patterned alignment marks based on different characteristics of different items to be scanned.

Abstract: A projection apparatus includes a light source, a light valve, and a lens module. The light source provides a light beam. The light valve converts the light beam into an image beam. The lens module converts the image beam into a projecting beam and includes a lens and a locking structure. The locking structure is connected to the lens and includes a first plate, a second plate, a moving element, and a first pushing element. The second plate is disposed between the first plate and the lens and firmly fixed to the lens. A groove is formed between the first plate and the second plate, and the groove has withstanding holes arranged along a first direction. The moving element is disposed between the first plate and the second plate. The first pushing element is disposed between the moving element and the second plate.

Abstract: A projection method of an electronic device, the electronic device has projection module. The method includes: detecting motion information of the electronic device to obtain a motion parameter; determining whether the motion parameter meets a predetermined condition; and adjusting an operating state of the projection module to match a motion state of the electronic device if the motion parameter meets the predetermined condition.

Abstract: A projector includes a projecting unit including a projection optical system and configured to project an image on a screen SC, a lens driving unit configured to perform focus adjustment for the projection optical system, a trapezoidal-distortion correcting unit configured to perform distortion correction processing for correcting distortion of the image projected by the projecting unit, and a projection control unit configured to cause the trapezoidal-distortion correcting unit to execute the distortion correction processing until a completion condition for the distortion correction processing holds after a start condition for the distortion correction processing holds and restrict the execution of the focus adjustment by the lens driving unit while the projection control unit causes the trapezoidal-distortion correcting unit to execute the distortion correction processing.

Abstract: There is provided a light source apparatus including a light source, a spreader to spread heat, and a conductor having a plurality of parts to conduct heat diffused from the light source. There is also provided a projector apparatus includes the light source apparatus.

Abstract: A projector includes a projection optical apparatus that projects an image and a projection position adjustment apparatus that moves the projection optical apparatus in orthogonal directions orthogonal to a central axis of the projection optical apparatus. The projection position adjustment apparatus includes a first movable member that supports the projection optical apparatus, a support member that supports the first movable member movably in the orthogonal directions, and a first transmission unit that moves in the orthogonal directions with the first transmission unit engaging with the first movable member to move the first movable member in the orthogonal directions. The first transmission unit is disposed in a position where the first transmission unit overlaps with part of the first movable member when the projection position adjustment apparatus is viewed along the central axis of the projection optical apparatus.

Abstract: An image projection apparatus comprises a projection unit configured to project an image onto a projection plane, a correction unit configured to correct a range of the image projected by the projection unit, a deformation unit configured to deform the projected range of the image according to a designated correction point, and a control unit configured to optically change the projected range of the image projected by the projection unit according to a designation of an outside of a predetermined range as the correction point.

Abstract: A lens shift mechanism includes a movable portion configured to support a projection lens and movable in two directions orthogonal to each other in a plane orthogonal to an optical axis; first and second operating units configured to generate drive forces for moving the movable portion in the two directions, respectively, first and second rotating portions to which the drive forces generated by the first and second operating units are transmitted, and a lock mechanism configured to be capable of switching between a locked state in which the two operating units are locked and an unlocked state in which the two rotating portions are rotatable, and the lock mechanism includes first and second locking members configured to lock the first and second rotating portions respectively and a lever mechanism configured to move the two locking members.

Abstract: A method is provided for calibrating a position-measuring system which includes the following steps: a) multiple measurements of positions of a structure of a sample held by a sample stage at different pressures of the gaseous medium in which the sample stage is arranged, b) ascertaining the pressure dependence when determining actual positions by use of an evaluation unit, c) establishing a calibration rule based on the ascertained pressure dependence, and d) applying the calibration rule when determining the actual positions.

Abstract: A camera assembly includes a camera and a rotating mechanism configured to drive the camera to rotate. The rotating mechanism includes a base, a driving device, a first driving gear, a second driving gear connected with the camera, and a switch gear. The driving device, the second driving gear, and the switch gear are located on the bracket. The first driving gear is located on the base. The switch gear is driven to selectively engage with the one of the first driving gear and the second driving gear. When the switch gear is connected with the first driving gear, the bracket is driven to rotate and rotate the camera on a first plane. When the switch gear is connected with the second driving gear, the driving device drives the camera to rotate via the switch gear and the second driving gear.

Abstract: A projector includes a light source section that outputs light, a light modulator that modulates the light outputted from the light source section based on image information, a projection lens that projects the modulated light, an enclosure that accommodates the light source section, the light modulator, and the projection lens, a base that supports the projection lens and fixes the projection lens to the enclosure, and a restricting portion that restricts movement of the base.

Abstract: Disclosed is a light deflector including a light-emitting element configured to emit a light beam with a substantially elliptical cross-sectional shape, and a lens configured to condense light emitted from the light-emitting element, wherein an optical axis of the light-emitting element and an optical axis of the lens are decentered and a longitudinal axis of the light beam with the substantially elliptical cross-sectional shape is arranged in a direction orthogonal to a direction of decentering on the lens.

Abstract: An image processing apparatus includes a projecting unit configured to project an image; an image capturing unit configured to capture the projected image to generate a captured image; an area identifying unit configured to identify a high-lightness area and a low-lightness area of the captured image; and a correcting unit configured to correct a lightness of the projected image in a manner that gradually changes the lightness of the high-lightness area of the captured image obtained by projecting a white image to the lightness of the low-lightness area of the captured image and sets the lightness thus changed as the lightness of the projected image. The projecting unit projects the projected image having the corrected lightness and an image to prompt a user for a response to the change in the lightness of the projected image.

Abstract: A projection-type image display apparatus includes a display device and a projection optical system. The projection optical system includes a first lens group having a positive power as a whole, and a second lens group having a negative power as a whole. The second lens group includes a first lens and a second lens in an order from the display device side, both of which have negative powers. When the first lens is moved toward the display device and the second lens is moved away from the display device with reference to positions of the first lens and the second lens in a direction of an optical axis when an image surface is planar, a focal position of the peripheral light becomes closer to the projection optical system in the direction of the optical axis than a focal position of the on-axis light, and the image surface is made concave to the projection optical system side.

Abstract: A laser patterning examining apparatus includes a fixing plate, a rotating plate configured to move vertically with respect to the fixing plate and to rotate, a housing connected to the rotating plate, a laser emission unit over the fixing plate and emits a laser beam, a prism unit on the housing and refracts a first portion of the laser beam received from the laser emission unit and transmits a second portion of the laser beam, and a beam profiler on the housing and analyzes the pattern of the first portion refracted by the prism unit.

Abstract: A measurement pattern having a predetermined shape and L-shaped black areas are superimposed and output to a liquid crystal panel, and a pattern is detected from a taken pattern image. Lines are detected based on an image of a screen frame in the pattern image, and coordinate conversion factors for conversion of camera coordinates in the taken image into panel coordinates are calculated based on panel coordinate values of the pattern and camera coordinate values of the pattern detected from the pattern image. Then, apexes of the screen frame in the panel coordinates are obtained based on the lines and the conversion coordinate factors detected with respect to each corner, correction values are calculated, and trapezoidal distortion correction is performed.

Abstract: An appropriate operation angle (actuation angle) corresponding to a use is obtained by a relatively simple structure. A focus ring 20 is mounted around a focus cam 10. When the focus ring 20 is moved to a front end side, a gear formed in the focus ring 20 meshes with a gear 17 of the focus cam 10 and the rotation of the focus ring 20 is directly transmitted to the focus cam 10. When the focus ring 20 is moved to a rear end side, the gear formed in the focus ring 20 meshes with pinions 15 mounted on the focus cam 10 and the rotation of the focus ring 20 is directly transmitted to the focus cam 10 through the pinions 15. A half of the rotation angle of the focus ring 20 is the same as the rotation angle of the focus cam 10.

Abstract: An illumination optical system includes a lens unit that is arranged on a path of an emitted light to an image forming element for forming an image; a holding unit that holds the lens unit; and an elastic body that is attached to the holding unit, and has integrally-formed first and second parts, the first part being biased in a direction of an optical axis of the light to press the lens unit, and the second part being biased in a direction perpendicular to the direction of the optical axis to press the lens unit.