Abstract: A light integration rod has a light incident end and a light emitting end opposite to each other. A normal vector of a light emitting cross section of the light emitting end is non-parallel to a light emitting direction of the light integration rod. The invention further provides a projection device having the light integration rod. The light integration rod and the projection device provided by the invention can reduce the defocus phenomenon of the light on the light valve, thereby improving the light utilization efficiency.

Abstract: A silicon carbide crystal and a method for manufacturing the same are disclosed. The silicon carbide crystal includes a seed layer, a bulk layer, and a stress buffering structure formed between the seed layer and the bulk layer. The seed layer, the bulk layer, and the stress buffering structure are each formed with a dopant that cycles between high and low concentration. Therefore, the crystal defects can be significantly reduced.

Abstract: A noise-shaping successive approximation analog-to-digital converter (NS-SAR ADC) using a passive noise-shaping technique with 1-input-pair SAR comparator is introduced. A residue sampling and integration circuit is coupled between a DAC and the comparator, for sampling a residue voltage generated by the DAC and charge-sharing of the sampled residue voltage. A first integral capacitor is coupled between a first input terminal of a comparator and a first output terminal of a DAC. After a first residue capacitor samples a residue generated by the DAC, the first residue capacitor is coupled to the first integral capacitor for charge-sharing of the residue voltage.

Abstract: An image processing method for a fluorescence reaction region of teeth. The image processing method includes emitting blue light from a light source to illuminate the teeth in a mouth, so that the teeth generate fluorescence; capturing a first teeth image of the teeth by an image capturing unit; separating the first teeth image into a first red-value image, a first green-value image, and a first blue-value image by a processing unit; transforming the first red-value image into a second red-value image by the processing unit using a pixel value transforming function; and combining the second red-value image, the first green-value image, and the first blue-value image into a second teeth image by the processing unit.

Abstract: A method of constructing a map including a plurality of lanes and a system thereof are provided. The method includes: for each of the plurality of lanes, constructing corresponding lane geometry data based on a plurality of polyline segments; and generating a lane content for the respective lane based on the lane geometry data.

Abstract: A method for dynamically adjusting fluorescent imaging is provided. The method is used in a device and includes the following steps: emitting, by a light emitting diode, light to illuminate teeth in an oral cavity, wherein the light is used to generate fluorescence from the teeth; filtering, by an optical filter, the fluorescence; receiving, by an image sensor, a signal and adjusting a gain value of an analog-to-digital converter according to the signal; converting, by the analog-to-digital converter, the filtered fluorescence into a digital signal and adjusting the digital signal according to the gain value; and generating, by a processor, an output image signal that corresponds to the gain value from the digital signal.

Abstract: An image-processing method for marking plaque fluorescent reaction areas is provided, including: obtaining a first RGB image of a mouth region; obtaining a second RGB image of the mouth region; respectively converting the first RGB image and the second RGB image into a first HSV image and a second HSV image; obtaining a first average brightness value of the first HSV image and a second average brightness value of the second HSV image; normalizing the first average brightness value or the second average brightness value according the first average brightness value and the second average brightness value to obtain a normalized image; converting the normalized image into a third RGB image, and obtaining a plurality of pixel points of the dental plaque according to the third RGB image and the first RGB image or the second RGB image; and marking the pixel points in the third RGB image.

Abstract: A high voltage (HV) converter implemented on a printed circuit board (PCB) includes a double diffused metal oxide semiconductor (DMOS) package comprising a lead frame and a main DMOS chip. The lead frame includes a gate section electrically connected to a gate electrode of the main DMOS chip, a source section electrically connected to a source electrode of the main DMOS chip and a drain section electrically connected to a drain electrode of the main DMOS chip. The PCB layout includes a large area source copper pad attached to and overlapping the source section of the DMOS package to facilitate cooling and a small area drain copper pad attached to and overlapping the drain section of the DMOS package to reduce electromagnetic interference (EMI) noise.

Abstract: A method of constructing a map including a plurality of lanes and a system thereof are provided. The method includes: for each of the plurality of lanes, constructing corresponding lane geometry data based on a plurality of polyline segments; and generating a lane content for the respective lane based on the lane geometry data.

Abstract: A method of retrieving a map is disclosed. The method includes receiving a grid data of the map comprising lane segments, wherein the grid data includes an array of grids each associated with a list including none or at least one of the lane segments intersecting the respective grid; receiving coordinates of a location; identifying a first grid including the location based on the grid data; identifying a target grid that has an associated list including at least one of the lane segments as first lane segment; and outputting the first lane segment.

Abstract: A projector includes a light source module and an optical engine. The light source module provides an illumination beam. The optical engine includes a light valve, a projection lens, and a pixel offset device. The light valve has an active surface, and the active surface converts the illumination beam into an image beam and reflects the image beam. The projection lens projects the image beam from the projector. The pixel offset device is located between the light valve and the projection lens and includes a frame and a transparent panel, the transparent panel is disposed in the frame and includes a transparent surface, the transparent panel is disposed on the transmission path of the illumination beam and the transmission path of the image beam, the frame is configured to drive the transparent panel to vibrate, and the transparent surface is tilted with respect to the active surface.

Abstract: An illumination system and a projection device are provided. The illumination system includes an excitation light source, a wavelength conversion module and a light combining prism. The excitation light source emits an exciting light beam. The light combining prism has a first, second, and third surfaces. The exciting light beam enters the light combining prism through the first surface, and is totally reflected by the second surface to leave the light combining prism through the third surface and is transmitted to the wavelength conversion module. The exciting light beam is converted into a wavelength converted light beam by a wavelength conversion region of the wavelength conversion module or reflected by a reflecting region of the wavelength conversion module at different timings, and the wavelength converted light beam or the exciting light beam sequentially penetrates through the third surface and the second surface to leave the light combining prism.

Abstract: An ablation device including a first electrode, at least one second electrode and a guiding sleeve is provided. The guiding sleeve is sleeved outside the first electrode and the second electrode, so as to fold the second electrode. The guiding sleeve is adapted to move along an axial direction of the first electrode, so as to adjust a length of the first electrode exposed by the guiding sleeve and enable the second electrode to be released and expand in a radial direction of the first electrode.

Abstract: A silicon carbide crystal and a manufacturing method thereof are provided. The silicon carbide crystal includes an N-type seed layer, a barrier layer, and a semi-insulating ingot, which are sequentially stacked and are made of silicon carbide. The N-type seed layer has a resistivity within a range of 0.01-0.03 ?·cm. The barrier layer includes a plurality of epitaxial layers sequentially formed on the N-type seed layer by an epitaxial process. The C/Si ratios of the epitaxial layers gradually increase in a growth direction away from the N-type seed layer. A nitrogen concentration of the silicon carbide crystal gradually decreases from the N-type seed layer toward the semi-insulating ingot by a diffusion phenomenon, so that the semi-insulating crystal has a resistivity larger than 107 ?·cm.

Abstract: A detoxified recombinant E. coli heat-labile enterotoxin mutant, LTS61K, is employed as a carrier protein to conjugate polysaccharide. The LTS61K contains a mutated mature sub-unit A (LTA) that includes lysine at amino acid position 61 and a wild-type mature sub-unit B (LTB). Various types of bacterial capsular polysaccharide antigens were chemically conjugated with the LTS61K protein by a reductive amination reaction. The conjugated polysaccharide-LTS61K products were physically, chemically and biochemically identified as soluble form. Rabbits were immunized intramuscularly to determine the immunogenicity of conjugated vaccines by ELISA to detect anti-polysaccharide antigen IgG titers and serum bactericidal assay thereby determining the functional activity of the antibodies. Study results show that conjugated polysaccharide-LTS61K vaccines induce higher polysaccharide-specific IgG titers and greater bactericidal activity in sera than that of polysaccharide alone or polysaccharide mixed with LTS61K.

Abstract: A noise-shaping successive approximation analog-to-digital converter (NS-SAR ADC) using a passive noise-shaping technique with 1-input-pair SAR comparator is introduced. A residue sampling and integration circuit is coupled between a DAC and the comparator, for sampling a residue voltage generated by the DAC and charge-sharing of the sampled residue voltage. A first integral capacitor is coupled between a first input terminal of a comparator and a first output terminal of a DAC. After a first residue capacitor samples a residue generated by the DAC, the first residue capacitor is coupled to the first integral capacitor for charge-sharing of the residue voltage.

Abstract: An illumination system including a first excitation light source, a transflective element, a wavelength conversion wheel and a filter wheel is provided. The first excitation light source emits a first excitation beam. The transflective element allows a first portion beam of the first excitation beam to pass through, and reflects a second portion beam of the first excitation beam. The wavelength conversion wheel is disposed on a transmission path of the first portion beam and includes a wavelength conversion region, and when the first portion beam irradiates onto the wavelength conversion region, the first portion beam is converted into a converted beam. The filter wheel is disposed on a transmission path of the second portion beam and the converted beam, and includes multiple filter regions, wherein the second portion beam and the converted beam irradiate onto each of the filter regions of the filter wheel.

Abstract: An image processing method for a fluorescence reaction region of teeth. The image processing method includes emitting blue light from a light source to illuminate the teeth in a mouth, so that the teeth generate fluorescence; capturing a first teeth image of the teeth by an image capturing unit; separating the first teeth image into a first red-value image, a first green-value image, and a first blue-value image by a processing unit; transforming the first red-value image into a second red-value image by the processing unit using a pixel value transforming function; and combining the second red-value image, the first green-value image, and the first blue-value image into a second teeth image by the processing unit.

Abstract: An image-processing method for marking plaque fluorescent reaction areas is provided, including: obtaining a first RGB image of a mouth region; obtaining a second RGB image of the mouth region; respectively converting the first RGB image and the second RGB image into a first HSV image and a second HSV image; obtaining a first average brightness value of the first HSV image and a second average brightness value of the second HSV image; normalizing the first average brightness value or the second average brightness value according the first average brightness value and the second average brightness value to obtain a normalized image; converting the normalized image into a third RGB image, and obtaining a plurality of pixel points of the dental plaque according to the third RGB image and the first RGB image or the second RGB image; and marking the pixel points in the third RGB image.

Abstract: An illumination system including an exciting light source module, a beam splitting and combining module, a wavelength conversion component and a light filtering component is provided. The exciting light source module is adapted to emit an exciting beam. The beam splitting and combining module is disposed on a transmission path of the exciting beam. The wavelength conversion component has a first optical region and a second optical region, and the first optical region and the second optical region are sequentially cut into the transmission path of the exciting beam transmitted by the beam splitting and combining module. The light filtering component is combined with the wavelength conversion component by a common central axis, so that the wavelength conversion component and the light filtering component are adapted to rotate coaxially. The illumination system has a simpler structure and lower cost. A projection apparatus is also provided.