Abstract: The embodiment of the present invention provides a method for a 3-D projection printing system and a system thereof, more particularly to a system adopts both ways of look-up table and interpolation method to calibrate. The embodiment of the present invention provides a portable calibration fixture system and a flexible 3-D projection printing system in order to improve calibration precision, facilitate calibration and printing operations, increase printing effect and save cost.

Abstract: A three-dimensional printing apparatus includes a liquid tank, a curing platform and a light source device. A bearing member of the liquid tank is air proof, and forms an accommodating space with a side wall of the liquid tank. The curing platform is disposed at a first side of the bearing member corresponding to the accommodating space for allowing a workpiece to be cured on a surface thereof. After the accommodating space accommodates a liquid material, a curing light beam provided by a light source device disposed at a second side of the bearing member opposite to the accommodating space cures at least part of the liquid material on a surface of the curing platform via the bearing member. The use of a solid release material between the curing platform and the bearing member may be omitted. Methods for printing and releasing a three-dimensional workpiece are also provided.

Abstract: A projector including a light source, a light valve, a projection lens and a displacement module is provided. The light source generates an illumination light. The light valve converts the illumination light into a multi-pixel area image light. The projection lens is disposed in a transmission path of the multi-pixel area image light. The image displacement module includes a carrier, an optical element, a frame and a base. The carrier, the frame and the base are substantially coplanar with each other, and the multi-pixel area image light provided is configured to be moved by the optical element and being moved along a third direction in response to the spinning of the carrier, and the first direction is different from the second direction. Furthermore, a three-dimensional printing apparatus is also provided.

Abstract: On embodiment of the invention provides an optical lens includes a lens barrel, a first lens group and a photo interrupter disposed in the lens barrel, a light-shading sheet and a power machine. The photo interrupter has an optical transmitter and an optical receiver, the optical transmitter emits a light beam in a first direction, and the optical receiver receives the light beam. The light-shading sheet is disposed in a propagation path of the light beam and has two shading parts with mutually different lengths. The power machine is linked to a kinetic machine part, and the kinetic machine part is connected to the first lens group.

Abstract: An image displacement module is adapted for an optical apparatus to switch image positions of a plurality of plane image. The image displacement module includes a carrying base and a rotating base. The carrying base is adapted to control the rotating base to vibrate back forth within an angle, such that the imaging positions of the plane image on the horizontal direction are moved by a first distance and the imaging positions of the plane image on the vertical direction are moved by a second distance at the same time. Alternatively, the carrying base is adapted to control the rotating base to rotate relative to two axes of a reference plane, such that the plane image are moved by a distance along one of a plurality of movement directions.

Abstract: One embodiment of the invention provides a three-dimensional printing system includes a first projector, a second projector, and a solidification region. The solidification region accommodates a curable material and has a first area and a second area. The first projector projects a first image on the first area, the second projector projects a second image on the second area, and the first image and the second image are stitched together to form an image seam. The image seam is the only one overlapping area between the first image and the second image, and a width of the image seam is smaller than a span of five consecutive pixels arranged crossing the image seam.

Abstract: A method for an improved 3-D printing system and a system thereof is disclosed. The method is able to blur and sharpen pattern images, and the system is flexible in assembly in order to benefit the convenience of printing, the speed of printing, and the cost of hardware and manufacturing.

Abstract: A three dimensional printing mechanism includes a plane receiving a first photocured material and a second photocured material which is different from the first photocured material. A first photocured material supplying mechanism is used for inputting the first photocured material into the plane, whereas a second photocured material supplying mechanism is used for inputting the second photocured material into the plane.

Abstract: A projection device is disposable into a display platform of a display rack having a plurality of display platforms, for directly projecting an image frame onto a projection screen of the display platform. The image frame projected to the projection screen is not reflected by any reflective mirror arranged between the projection device and the projection screen. A length of the image frame in a first direction is equal to at least ten times a length of the image frame in a second direction. Since no reflective mirror is arranged between the projection device and the projection screen, the projection device is more easily applicable to display racks.

Abstract: A three-dimensional printing system includes a build device and an optical projection engine. The build device includes a curing tank, a photocurable material and a build platform, and the photocurable material and the build platform is disposed in the curing tank. The optical projection engine has a zoom lens for projecting image beams with at least a first pixel size and a second pixel size on the build platform to cure the photocurable material, and the first pixel size is different to the second pixel size.

Abstract: A method for an improved 3-D printing system and a system thereof is disclosed. The method is able to blur and sharpen pattern images, and the system is flexible in assembly in order to benefit the convenience of printing, the speed of printing, and the cost of hardware and manufacturing.

Abstract: The embodiment of the present invention provides a method for a 3-D projection printing system and a system thereof, more particularly to a system adopts both ways of look-up table and interpolation method to calibrate. The embodiment of the present invention provides a portable calibration fixture system and a flexible 3-D projection printing system in order to improve calibration precision, facilitate calibration and printing operations, increase printing effect and save cost.

Abstract: A power distribution system capable of automatic fault detection includes a lateral, a switch unit and a feeder terminal unit. The switch unit includes a circuit breaker coupled for transmitting electrical power to the lateral when making electrical connection, and a protection relay to provide a control signal that causes the circuit breaker to break electrical connection upon determining that the magnitude of a current provided by the circuit breaker is greater than a threshold current value. The feeder terminal unit detects whether or not the protection relay generates the control signal, so as to determine whether or not a fault has occurred in the lateral.

Abstract: A three-dimensional printing apparatus includes a liquid tank, a curing platform and a light source device. A bearing member of the liquid tank is air proof, and forms an accommodating space with a side wall of the liquid tank. The curing platform is disposed at a first side of the bearing member corresponding to the accommodating space for allowing a workpiece to be cured on a surface thereof. After the accommodating space accommodates a liquid material, a curing light beam provided by a light source device disposed at a second side of the bearing member opposite to the accommodating space cures at least part of the liquid material on a surface of the curing platform via the bearing member. The use of a solid release material between the curing platform and the bearing member may be omitted. Methods for printing and releasing a three-dimensional workpiece are also provided.

Abstract: A three-dimensional printing apparatus includes a liquid tank and a motor. The liquid tank includes a film and a plate. The film has a working area, and the plate supports the film and has at least one fluid tunnel extending from a first surface of the plate contacting the film to a second surface of the plate. The motor is disposed on the liquid tank, providing dragging-down traction to incline the liquid tank. The embodiments of the present invention facilitate the separation of workpieces from the film. Another three-dimensional printing apparatus and a three-dimensional printing method are also provided.

Abstract: A three-dimensional printing apparatus includes a container and a projecting structure. The container is configured to contain a liquid photosensitive material. The liquid photosensitive material includes a variety of photoinitiators and a monomer. The projecting structure is configured to provide a variety of molding beams to irradiate the liquid photosensitive material. The variety of molding beams have different wavelengths and are used to actuate a polymerization between one of the variety of photoinitiators and the monomer respectively thereby forming a solidified layer. A three-dimensional printing method is also provided.

Abstract: A projection lens configured to form an image from an image source which is disposed at an object side is provided. The projection lens includes a lens group and an aspheric mirror. The lens group has a first optical axis, and an intermediate image is formed by the lens group from the image source. The aspheric mirror has a second optical axis and an aspheric surface. The lens group is disposed between the object side and the aspheric mirror. The aspheric surface faces the lens group and reflects the intermediate image to form the image at an image side. The first optical axis is not coaxial with the second optical axis, and an offset of the image relative to the first optical axis is larger than or equal to 100%.

Abstract: A projection apparatus for projecting a first image and a second image is disclosed. The projection apparatus has a casing, a light source module providing an illumination beam, a light valve device, a first prism, a second prism, a third prism, a fourth prism, a first projection lens, and a second projection lens. The illumination beam enters the first prism, the second prism, the third prism, the fourth prism, and the light valve device. The illumination beam is reflected and converted into a first image beam and a second image beam. The first image beam enters the first prism and is totally reflected to the first projection lens to form the first image. The second image beam enters the third prism and is totally reflected to the second projection lens to form the second image.

Abstract: An image displacement module is adapted for an optical apparatus to switch image positions of a plurality of plane image. The image displacement module includes a carrying base and a rotating base. The carrying base is adapted to control the rotating base to vibrate back forth within an angle, such that the imaging positions of the plane image on the horizontal direction are moved by a first distance and the imaging positions of the plane image on the vertical direction are moved by a second distance at the same time. Alternatively, the carrying base is adapted to control the rotating base to rotate relative to two axes of a reference plane, such that the plane image are moved by a distance along one of a plurality of movement directions.

Abstract: A power distribution system capable of automatic fault detection includes a lateral, a switch unit and a feeder terminal unit. The switch unit includes a circuit breaker coupled for transmitting electrical power to the lateral when making electrical connection, and a protection relay to provide a control signal that causes the circuit breaker to break electrical connection upon determining that the magnitude of a current provided by the circuit breaker is greater than a threshold current value. The feeder terminal unit detects whether or not the protection relay generates the control signal, so as to determine whether or not a fault has occurred in the lateral.