Abstract: A near-eye display apparatus including at least one display unit having a display element and an optical system is provided. The display element provides a light beam. The light beam includes a first light beam and a second light beam having different image information and different polarization states. The optical system includes a first semi-reflective element, a first polarization conversion element, and a polarization reflector, arranged in sequence along an optical axis. The polarization reflector allows a light beam having a first polarization state to pass and reflects a light beam having a second polarization state. The light path and the image distance of the second light beam are greater than the light path and the image distance of the first light beam, and the first light beam and the second light beam are emitted by at least one display unit to form a combined light beam.

Abstract: A head mounted display including two display units is provided. Each display unit includes a display module and an optical assembly disposed in front of the display module. The display module includes a carrier body and a plurality of light-emitting elements. The carrier body includes a plurality of recesses. Each recess has a bottom surface and a reflective side wall connected to the bottom surface. A plurality of the light-emitting elements are located in the plurality of recesses. Each light-emitting element is disposed on the bottom surface of a corresponding recess. The optical assembly is disposed in front of the display module.

Abstract: A head mount display including two display units respectively disposed in front of eyes of a user is provided. Each of the display units includes a display device, a Fresnel lens, and a plurality of moth eye structures. The Fresnel lens is disposed between the display device and one of the eyes of the user. The plurality of moth eye structures are located on at least one surface between the display device and the one of the eyes of the user.

Abstract: A near-eye display apparatus including at least one display unit having a display element and an optical system is provided. The display element provides a light beam. The light beam includes a first light beam and a second light beam having different image information and different polarization states. The optical system includes a first semi-reflective element, a first polarization conversion element, and a polarization reflector, arranged in sequence along an optical axis. The polarization reflector allows a light beam having a first polarization state to pass and reflects a light beam having a second polarization state. The light path and the image distance of the second light beam are greater than the light path and the image distance of the first light beam, and the first light beam and the second light beam are emitted by at least one display unit to form a combined light beam.

Abstract: An eye tracking device including an optical waveguide component, a light source module, and an eye tracking module is provided. The optical waveguide component has a light-entrance surface and a light-exit surface connecting the light-entrance surface. The light-exit surface has a plurality of micro-structures directly formed on the light-exit surface. The light source module is disposed next to the light-entrance surface and adapted to provide a light beam. The light beam enters the optical waveguide component through the light-entrance surface, and the light beam is emitted from the optical waveguide component through the micro-structures and is transmitted to an eye. The eye tracking module receives a portion of the light beam reflected by the eye and determines a location of the eye based on the portion of the light beam reflected by the eye. A head mounted display is also provided.

Abstract: A process for producing a cationic dyeable polyester includes the steps of: (a) subjecting a combination of a bis-hydroxy alkyl terephthalate monomer of Formula (1) defined herein and an organic diacid monomer mixture which includes an aromatic dicarboxylic acid monomer and a sulfo group-containing aromatic dicarboxylic acid dyeable monomer to an esterification reaction to form an esterification reaction product; and (b) subjecting the esterification reaction product to a polycondensation reaction.

Abstract: An eye tracker includes a lens, a beam splitter, a structured light source and an image capturing element. The beam splitter is disposed at one side of the lens. The structured light source and the image capturing element are disposed between the lens and the beam splitter. The structured light source is configured to emit a first light and project to the beam splitter. The first light is reflected to the lens from the beam splitter and passes through the lens to project to an eye. The first light is reflected from the eye to form a second light. The second light passes through the lens and projects to the beam splitter, and is reflected to the image capturing element from the beam splitter. A display is also provided.

Abstract: A process for producing a flame-retardant polyester includes step (a) and step (b). In step (a), a combination of a bis-hydroxy alkyl terephthalate monomer and an organic diacid monomer mixture which includes an aromatic dicarboxylic acid monomer and a carboxy-phosphinic acid monomer is subjected to an esterification reaction to form an esterification reaction product. In step (b), the esterification reaction product is subjected to a polycondensation reaction.

Abstract: A process for producing a cationic dyeable polyester includes the steps of: (a) subjecting a combination of a bis-hydroxy alkyl terephthalate monomer of Formula (1) defined herein and an organic diacid monomer mixture which includes an aromatic dicarboxylic acid monomer and a sulfo group-containing aromatic dicarboxylic acid dyeable monomer to an esterification reaction to form an esterification reaction product; and (b) subjecting the esterification reaction product to a polycondensation reaction.

Abstract: A process for producing a flame-retardant polyester includes step (a) and step (b). In step (a), a combination of a bis-hydroxy alkyl terephthalate monomer and an organic diacid monomer mixture which includes an aromatic dicarboxylic acid monomer and a carboxy-phosphinic acid monomer is subjected to an esterification reaction to form an esterification reaction product. In step (b), the esterification reaction product is subjected to a polycondensation reaction.

Abstract: An ion focusing member includes a ball having a surface with a plurality of dimples. The ion focusing member is adapted for being disposed in a mass spectrometer in a way that the ball is located at a spray path of analyte ions and located between a metal capillary and a mass analyzer. When the analyte ions pass through the ball, the analyte ions can be gathered at a downstream position of the ball, which in turn flow into the mass analyzer by a potential difference. Therefore, the ion focusing member of the present disclosure can effectively enhance the amount of the analyte ions entering into the mass analyzer, thereby improving ion transmission efficiency. As a result, a mass spectrometer equipped with the ion focusing member may have increased signal intensity of analyte, lowered limit of detection (LOD), and minimized detection error.

Abstract: A focusing ionization device includes a ball having a surface with a plurality of dimples and a metal needle located at one side of the ball and capable of generating corona discharge. The focusing ionization device is adapted for being disposed in a mass spectrometer in a way that the ball is located at a spray path of gaseous analytes and the metal needle is located adjacent to a sample inlet of a mass analyzer. When the gaseous analytes pass through the ball, the gaseous analytes can be gathered around the metal needle, which in turn are ionized to produce analyte ions to be transmitted into the mass analyzer by a potential difference. Therefore, the focusing ionization device of the present disclosure can effectively enhance the amount of the analyte ions entering into the mass analyzer, thereby improving ion transmission efficiency.

Abstract: An ion focusing member includes a ball having a surface with a plurality of dimples. The ion focusing member is adapted for being disposed in a mass spectrometer in a way that the ball is located at a spray path of analyte ions and located between a metal capillary and a mass analyzer. When the analyte ions pass through the ball, the analyte ions can be gathered at a downstream position of the ball, which in turn flow into the mass analyzer by a potential difference. Therefore, the ion focusing member of the present disclosure can effectively enhance the amount of the analyte ions entering into the mass analyzer, thereby improving ion transmission efficiency. As a result, a mass spectrometer equipped with the ion focusing member may have increased signal intensity of analyte, lowered limit of detection (LOD), and minimized detection error.

Abstract: A focusing ionization device includes a ball having a surface with a plurality of dimples and a metal needle located at one side of the ball and capable of generating corona discharge. The focusing ionization device is adapted for being disposed in a mass spectrometer in a way that the ball is located at a spray path of gaseous analytes and the metal needle is located adjacent to a sample inlet of a mass analyzer. When the gaseous analytes pass through the ball, the gaseous analytes can be gathered around the metal needle, which in turn are ionized to produce analyte ions to be transmitted into the mass analyzer by a potential difference. Therefore, the focusing ionization device of the present disclosure can effectively enhance the amount of the analyte ions entering into the mass analyzer, thereby improving ion transmission efficiency.