Abstract: An interconnect structure comprises a first dielectric layer, a first metal layer, a second dielectric layer, a metal via, and a second metal layer. The first dielectric layer is over a substrate. The first metal layer is over the first dielectric layer. The first metal layer comprises a first portion and a second portion spaced apart from the first portion. The second dielectric layer is over the first metal layer. The metal via has an upper portion in the second dielectric layer, a middle portion between the first and second portions of the first metal layer, and a lower portion in the first dielectric layer. The second metal layer is over the metal via. From a top view the second metal layer comprises a metal line having longitudinal sides respectively set back from opposite sides of the first portion of the first metal layer.

Abstract: A double layered uniaxially elongated foam polymer membrane structure includes a first basic material and a second basic material of different thickness. The elongated foam granules contained in the first basic material are larger than those contained in the second basic material the elongated foam granules of the second basic material are formed into a cylindrical strip, and the two basic materials are bonded together by welding. With this structure the incident and reflection light angles may be kept optimistically maximum.

Abstract: A prism monomer for use in a digital light processing projection device includes a plastic triangular prism having a hypotenuse surface and a glass sheet. The glass sheet has two opposite surfaces. One surface of the glass sheet is attached to the hypotenuse surface of the plastic triangular prism and the other surface of the glass sheet is formed with an anti-reflective coating.

Abstract: A multi-layered decorative pull flower includes at least two plate-shaped objects which are overlapped with each other and each of which is provided with a rope. Moreover, a fixing element is provided between the plate-shaped objects and a user can pull the ropes, allowing the pull flower to form a pre-determined shape of ribbon flower. Besides, each plate-shaped object is provided respectively with a different color zone. By the aforementioned structures, when pulling the ropes to form the ribbon flower shape, as each plate-shaped object can be a different material and different color zone, the user can have multiple enjoyments of the enriched colors.

Abstract: A stereo projection optical system includes a polarizing beam splitter, a 2-way wheel, a digital micro-mirror device, and a total internal reflection prism. The polarizing beam splitter is configured for emitting two light outputs. The 2-way wheel includes a reflective region and a transmissive region. The reflective region is configured for reflecting the light outputs and the transmissive region is configured for transmitting the light outputs. The digital micro-mirror device is configured for superimposing spatial information on the light outputs. The total internal reflection prism configured for coupling the light outputs of the 2-way wheel into the digital micro-mirror device and transmitting a light output of the digital micro-mirror device. The stereo projection optical systems provide viewers three-dimensional images formed by two alternative polarized light beams whose polarizations are perpendicular to each other utilizing the 2-way wheel.

Abstract: A testing method is configured for testing parameters of a color wheel. The color wheel includes a color filter, which includes three sector-shaped filter segments and a motor for driving the filter segments of the color filter to rotate. The color filter is driven to rotate. Light is emitted toward the color filter of the color wheel, and reflected back by the color filter. Boundary impulses are generated according to changes in intensity of the light reflected back by the color filter. Based on relationships between the boundary impulses, central angles of the filter segments of the color wheel are calculated.

Abstract: A testing system measures central angles of filter segments of a color wheel. The color wheel includes a color filter, which includes three sector-shaped filter segments and a motor for driving the filter segments to rotate. The testing system includes a sensor and a processor. The sensor emits light toward the color filter and receives light reflected back by the color filter, and generates an impulse signal according to intensity changes of the light reflected back by the color filter. The impulse signal includes a plurality of boundary impulses corresponding to boundaries formed between adjacent filter segments. The processor calculates central angles of the filter segments according to relationships between the boundary impulses.

Abstract: A lens holder coupling a lens to an actuator is disclosed. The actuator includes a vibrator and a driving rod coupled to the vibrator along a vibration direction of the vibrator. The lens holder includes a lens carrier, a transmission member, a guiding member, and a fixing member. The lens carrier is configured for accommodating the lens. The transmission member connected to the lens carrier defines a groove having a transmission axis parallel to an optical axis of the lens receiving the driving rod. The guiding member connected to the lens carrier defines a hole receiving a guide rod substantially parallel to the optical axis of the lens. The fixing member includes a main body and an elastic sheet, the main body being fixed to the transmission member, the elastic sheet extending from the main body and covering the groove and configured for elastically contacting the driving rod.

Abstract: A lens holder coupling a lens to an actuator is disclosed. The actuator includes a vibrator and a driving rod coupled to the vibrator along a vibration direction of the vibrator. The lens holder includes a lens carrier, a transmission member, a guiding member, and a fixing member. The lens carrier is configured for accommodating the lens. The transmission member connected to the lens carrier defines a groove having a transmission axis parallel to an optical axis of the lens receiving the driving rod. The guiding member connected to the lens carrier defines a hole receiving a guide rod substantially parallel to the optical axis of the lens. The fixing member includes a main body and an elastic sheet, the main body being fixed to the transmission member, the elastic sheet extending from the main body and covering the groove and configured for elastically contacting the driving rod.

Abstract: An electronic element module and an electronic device using the same are provided. The electronic element module includes a circuit board and at least a capacitor. In one embodiment, the circuit board has a plurality of contacts. The capacitor is disposed on the circuit board with a gap therebetween. Besides, the capacitor has a plurality of terminals electrically connected to the contacts correspondingly. The gap is filled with a glue.

Abstract: An electronic element module and an electronic device using the same are provided. The electronic element module includes a circuit board and a plurality of electronic elements. In one embodiment, the circuit board has a plurality of leg-holes. Each of the electronic elements includes a body and a plurality of legs that connected to the body. Wherein, the bodies of the electronic elements are glued each other, and the legs of the electronic elements are partially plugged in the leg-holes. In another one embodiment, the circuit board has a plurality of contacts. The electronic element is disposed on the circuit board with a gap therebetween. The electronic element has a plurality of terminals that electrically connect to the contacts of the circuit board correspondingly. Otherwise, the gap is filled with glue.

Abstract: A stereo projection optical system includes a polarizing beam splitter, a 2-way wheel, a digital micro-mirror device, and a total internal reflection prism. The polarizing beam splitter is configured for emitting two light outputs. The 2-way wheel includes a reflective region and a transmissive region. The reflective region is configured for reflecting the light outputs and the transmissive region is configured for transmitting the light outputs. The digital micro-mirror device is configured for superimposing spatial information on the light outputs. The total internal reflection prism configured for coupling the light outputs of the 2-way wheel into the digital micro-mirror device and transmitting a light output of the digital micro-mirror device. The stereo projection optical systems provide viewers three-dimensional images formed by two alternative polarized light beams whose polarizations are perpendicular to each other utilizing the 2-way wheel.

Abstract: A stereo projection optical system includes a polarizing beam splitter configured for splitting a light input into first, second polarized light components, first, second digital micro-mirror device respectively positioned to receive the first, second polarized light component and configured for superimposing spatial information on the first, second polarized light component, first, second total internal reflection prism configured for coupling the first, second polarized light component into the first, second digital micro-mirror device and a light combiner. The projecting lens projects two images formed by the first polarized light component and the second polarized light component with spatial information in the stereo projection optical systems. When a viewer wear glasses that have two polarizing lenses whose polarization direction is perpendicular to each other, the viewer can perceive projected images as being “3-D”.

Abstract: A system for detecting blemishes on a surface of an object includes at least an image capturing apparatus, at least a light source assembly, and a data processing device. The image capturing apparatus is configured for an image of a surface of an object and acquiring a brightness value of each of pixels of the image. The light source assembly is configured for light the surface. The data processing device is electrically connected to the image capturing apparatus and configured for calculating sum of all of the brightness value to obtain a mean value of the brightness values, comparing the brightness value of each pixel with the mean value and marking the pixels as a blemish whose brightness value is greater than the mean value. The system and method avoid errors that may otherwise occur due to the interference of noise, and avoid the subjective factors of viewers.

Abstract: A prism monomer for use in a digital light processing projection device includes a plastic triangular prism having a hypotenuse surface and a glass sheet. The glass sheet has two opposite surfaces. One surface of the glass sheet is attached to the hypotenuse surface of the plastic triangular prism and the other surface of the glass sheet is formed with an anti-reflective coating.

Abstract: A testing method is configured for testing parameters of a color wheel. The color wheel includes a color filter, which includes three sector-shaped filter segments and a motor for driving the filter segments of the color filter to rotate. The color filter is driven to rotate. Light is emitted toward the color filter of the color wheel, and reflected back by the color filter. Boundary impulses are generated according to changes in intensity of the light reflected back by the color filter. Based on relationships between the boundary impulses, central angles of the filter segments of the color wheel are calculated.

Abstract: A testing system measures central angles of filter segments of a color wheel. The color wheel includes a color filter, which includes three sector-shaped filter segments and a motor for driving the filter segments to rotate. The testing system includes a sensor and a processor. The sensor emits light toward the color filter and receives light reflected back by the color filter, and generates an impulse signal according to intensity changes of the light reflected back by the color filter. The impulse signal includes a plurality of boundary impulses corresponding to boundaries formed between adjacent filter segments. The processor calculates central angles of the filter segments according to relationships between the boundary impulses.

Abstract: An integration rod used in a projector. The integration rod includes a plurality of lenses that form the integration rod; a layer of high temperature hot-setting UV adhesive applied on the lenses to bond the lenses into a hollow rod structure; and a layer of ceramic adhesive applied on the hollow rod structure for stabilizing the hollow rod structure.

Abstract: A color wheel includes a motor, a filter and a dark slide. The motor has an adhering section and the filter is affixed to the motor by the adhering section. The filter has a first surface facing the motor and a second surface opposite to the first surface. The dark slide is affixed to the filter on the second surface. The dark slide matches the location and shape of the adhering section to block light from projecting onto the adhering section. The thermal expansion coefficients of the dark slide and the filter are substantially identical to avoid damage from thermal stress caused by heating and cooling. An assembling tool and an assembling method are also provided in the embodiments.

Abstract: A cutting method for fabricating a color wheel. The first step includes cutting a set of fan-shaped filter segments from different colored filter sheets, wherein the sum of the included angles of the set of fan-shaped filter segments is either greater or less than 360°. The second step includes bonding the set of fan-shaped filter segments onto a metal ring. The third step includes cutting the outer edge of the set of fan-shaped filter segments along a circular path coaxial to the metal ring. In this way, while bonding the fan-shaped filter segments onto the metal ring, the effect of burrs, irregular cracks or irregular edges resulting from the cutting process can be minimized. Moreover, the outer edge of the color wheel will be coaxial to the axis of the metal ring.