Abstract: A manufacturing method of a projection apparatus is provided. The manufacturing method of the projection apparatus includes: classifying a light valve by using an optical jig which includes a lens with a constant aperture; selecting an aperture stop with a size corresponding to classification of the light valve; and assembling the light valve and the aperture stop to form the projection apparatus.

Abstract: A display system including a display device and a light combining device is provided. The display device includes a first display region and a second display region. The light combining device has a first surface and a second surface opposite to the first surface. At least one part of a first light beam from the first display region is reflected by the first surface to an observing region so as to form a first virtual image. At least one part of a second light beam from the second display region penetrates through the first surface, is reflected by the second surface, penetrates through the first surface again, and is transmitted to the observing region in sequence, so as to form a second virtual image.

Abstract: A zoom lens includes a first lens group with a negative refractive power, a second lens group with a positive refractive power, and an aperture stop disposed in and movable with the second lens group. Each of the first lens group and the second lens group moves individually. The zoom lens further includes a doublet lens disposed on a first side of the aperture stop and between the first lens group and the aperture stop, and at most two lenses including at least one aspheric lens are disposed on a second side of the aperture stop.

Abstract: An optical path adjusting mechanism including a rotating base, an optical element, a coil, a first spring and a second spring is provided. A first area and a second area are diagonally disposed on the rotating base. The optical element is disposed in the rotating base. The coil is disposed around a periphery of the rotating base. One terminal of the first spring is connected to the first area of the rotating base. One terminal of the second spring is connected to the second area of the rotating base.

Abstract: A vehicle lighting system includes a light processing unit, a non-uniform projection unit, a sensing unit, a judgment unit, and an operation unit. The light processing unit is capable of changing an intensity profile of a light beam, and the judgment unit receives an image signal from the sensing unit to determine whether to change the intensity profile of the light beam according to the image signal. When the intensity profile needs to be changed in accordance with the judgment result, the operation unit calculates out a desired intensity profile and outputs a control signal containing information about the desired intensity profile to the light processing unit, and the light processing unit changes the intensity profile of the light beam according to the control signal and sends out the light beam with the desired intensity profile.

Abstract: One embodiment of the invention provides a pattern generation device includes a light source, a first HPDLC cell, and a second HPDLC cell. The first HPDLC cell is disposed downstream of a light path of the light source and contains a first phase modulation pattern. The second HPDLC cell is disposed downstream of a light path of the first HPDLC cell and contains a second phase modulation pattern.

Abstract: One embodiment of the invention provides a pattern generation device includes a light source, a first HPDLC cell, and a second HPDLC cell. The first HPDLC cell is disposed downstream of a light path of the light source and contains a first phase modulation pattern. The second HPDLC cell is disposed downstream of the light path of the first HPDLC cell and contains a diffraction grating pattern.

Abstract: A projection device and a headlight for vehicle are provided. The projection device includes a light source, a light valve and a projection lens. The light source is used to emit a light beam. The light valve is located at the downstream of an optical path of the light source. The projection lens is located at the downstream of an optical path of the light valve and has an optical axis. The light valve is located on the optical axis of the projection lens and is tilted with respect to the projection lens to form an acute angle with the optical axis. The projection lens is used for projecting the light beam on a first projection surface and a second projection surface.

Abstract: One embodiment of the invention provides a three-dimensional printing apparatus including a light-transmissive plate having a first surface, a platform, a support frame, a supporting seat and a rotating shaft. The platform is disposed above the light-transmissive plate, and the support frame is disposed under the light-transmissive plate. The supporting seat is disposed under the support frame and defines an accommodation space under the light-transmissive plate for accommodating an image light source. The rotating shaft pivots on a point inside or on the support frame and has a shaft center, and the shaft center is disposed under an extending plane extending from the first surface.

Abstract: A lens module for capturing an object light-beam from an object-side is provided. The lens module includes a first lens group, a second lens group, a third lens group, a fourth lens group and a fifth lens group sequentially-arranged from the object-side to an image-side. The five lens groups respectively have at least one lens with positive refractive-power and at least one lens with negative refractive-power. The first, third and fifth lens groups are fixed groups, while the second and fourth lens groups are movable groups. An image apparatus including the lens module is also provided.

Abstract: A puddle lamp including a light source composed of a single light emitting body, a lens set, a projection film with a fixed image and a projection lens is provided. The lens set is disposed at a light path downstream side of the light source. The projection film is disposed at a light path downstream side of the lens set. The lens is disposed at a light path downstream side of the projection film. An optical axis of the light source is substantially parallel to an optical axis of the lens set, and an optical axis of the projection lens is not perpendicular to an image plane of the puddle lamp. Furthermore, another puddle lamp is also provided.

Abstract: A manufacturing apparatus and a manufacturing method for a molded lens are provided. A substrate is located between a first molding core and a second molding core, and the first molding core is moved so that the substrate is formed into a lens. A distance sensor sends a plurality of press distance parameters of moving the first molding core, and the press distance parameters may form a press curve. The press curve and a reference press curve is compared for a difference by a processor and a comparator. The processor determines whether the difference is within an error range.

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: An optical lens includes a first lens group, an aperture, and a second lens group which are sequentially arranged along an optical axis from a magnified side to a minified side. The first lens group has a negative refractive power and includes three lenses with refractive powers. The first lens group includes a lens with positive refractive power. The first lens group includes an aspheric lens. The second lens group has a positive refractive power and includes three lenses with refractive power. The second lens group includes a lens with a negative refractive power. The second lens group includes a lens closest to the minified side which is a cemented lens. The second lens group includes an aspheric lens. In the optical lens, a number of the lenses having the refractive powers is within a range from 6 to 8.

Abstract: A three-dimensional printing apparatus includes a tank, a transparent plate, a printing platform, a projector and a heat dissipation assembly. The tank accommodates a photocurable material, and the transparent plate is disposed adjacent to the tank. The printing platform and the projector are respectively disposed on opposite sides of the transparent plate. The heat dissipation assembly is disposed adjacent to the tank.

Abstract: A three-dimensional printer includes a projector, a tank, and a platform. The projector includes a light source, a digital micromirror device, and a controller. The digital micromirror device includes a micromirror, and the micromirror may be switched between an on state and an off state according to a control signal. The controller is electrically connected to the digital micromirror device and the light source. The controller further includes a judgement unit. The judgement unit may output the control signal to switch the micromirror to the off state when the light source is in the off state. The platform is adjacent to the tank. In addition, a manufacturing method for a three-dimensional printer is provided.

Abstract: A light path adjustment mechanism includes a support, a carrier, an optical plate member and a raised structure. The carrier is disposed in the support and connected to the support by a first connection bar and a second connection bar. The optical plate member is disposed on the carrier, and the raised structure is provided on a periphery of the carrier and integrally formed as one piece with the carrier.

Abstract: A projection device and a headlight for vehicle are provided. The projection device includes a light source, a light valve and a projection lens. The light source is used to emit a light beam. The light valve is located at the downstream of an optical path of the light source. The projection lens is located at the downstream of an optical path of the light valve and has an optical axis. The light valve is located on the optical axis of the projection lens and is tilted with respect to the projection lens to form an acute angle with the optical axis. The projection lens is used for projecting the light beam on a first projection surface and a second projection surface.

Abstract: A three dimensional printing apparatus including a carrying plate, a transparent plate, an elastic film, and a bump is provided. The transparent plate is disposed on the carrying plate. The elastic film is disposed on the transparent plate. The bump is disposed between the elastic film and the carrying plate. An interface between the transparent plate and the elastic film is in communication with an external space through a fluid channel between each bump and the elastic film. An orthographic projection area of the bump on the transparent plate is not more than ¼ of a surface area of the transparent plate.

Abstract: A light combining module includes a first light source, a second light source, a first dichroic mirror, and an alignment structure. The first light source is used to output a first light. The second light source is used to output a second light. The first dichroic mirror is disposed on a transmission path of the first light and the second light, wherein the first light is incident on the second light source via the first dichroic mirror. The alignment structure adjusts the position of the second light source.