Abstract: A stand adjustment device has a tripod-connecting member, a connecting seat, a proximal clamping plate, a boom-connecting tube, a locking shaft, and a manual operating member. The connecting seat is rotatably located around the tripod-connecting member. The proximal clamping plate is detachably attached to a side of the connecting seat. One end of the locking shaft is movably disposed in the boom-connecting tube. The boom is slidably mounted through the boom-connecting tube and the locking shaft. The locking shaft is slidably mounted through the boom-connecting tube, the proximal clamping plate, and the connecting seat such that the boom-connecting tube is rotatable relative to the connecting seat. The manual operating member and the locking shaft are configured to clamp the boom-connecting tube, the proximal clamping plate, and the connecting seat therebetween into a locked condition.

Abstract: An optical imaging lens includes first, second, third, fourth, fifth, and sixth lens elements sequentially along an optical axis from an object side to an image side. Each of the first to the sixth lens elements includes an object-side surface facing the object side and allowing imaging rays to pass through and an image-side surface facing the image side and allowing the imaging rays to pass through. The optical imaging lens satisfies conditions of Gallmax/Fno?3.600 millimeters, EFL/ImgH?3.200, and Gallmax/Tavg?3.300; here, Gallmax represents a largest air gap along the optical axis between the first lens element and an image plane, Fno, EFL, and ImgH respectively represent an F-number, an effective focal length, and an image height of the optical imaging lens, and Tavg represents an average lens element thickness of all of the lens elements along the optical axis from the object side to the image plane.

Abstract: We have invented an EUV spectroscopic polarimeter including a light receiving element, a first polarizing modulation element, a second polarizing modulation element, an energy splitting element and a light detecting and analyzing apparatus. The light receiving element is for receiving a target light. The first polarizing modulation element is rotatably connected to the light receiving element for generating a first polarized light. The second polarizing modulation element is rotatably connected to the first polarizing modulation element for generating a second polarized light. The energy splitting element receives the second polarized light so as to generate a modulated-polarization and energy-resolved light.

Abstract: We have invented an EUV spectroscopic polarimeter including a light receiving element, a first polarizing modulation element, a second polarizing modulation element, an energy splitting element and a light detecting and analyzing apparatus. The light receiving element is for receiving a target light. The first polarizing modulation element is rotatably connected to the light receiving element for generating a first polarized light. The second polarizing modulation element is rotatably connected to the first polarizing modulation element for generating a second polarized light. The energy splitting element receives the second polarized light so as to generate a modulated-polarization and energy-resolved light.

Abstract: A method and system for utilizing the laser defocusing effect for phase matching of high order harmonic generation in a tight focusing geometry are provided. The most suitable focusing geometry, especially those five parameters including: (1) the aperture size of the adjustable iris, (2) the focus position with respect to the gas cell, (3) the backing pressure of the gas cell, (4) the focal length and (5) the length of the gas cell, for achieving phase matching of the target harmonic order and maximal yield of the target harmonic order are disclosed.

Abstract: A method and system for utilizing the laser defocusing effect for phase matching of high order harmonic generation in a tight focusing geometry are provided. The most suitable focusing geometry, especially those five parameters including: (1) the aperture size of the adjustable iris, (2) the focus position with respect to the gas cell, (3) the backing pressure of the gas cell, (4) the focal length and (5) the length of the gas cell, for achieving phase matching of the target harmonic order and maximal yield of the target harmonic order are disclosed.

Abstract: The present invention provides a location-based service delivering system and method for at least one person carrying a mobile device that can allow the delivery of location-based services without using the earth coordinates. The location-based service delivering system comprises: at least one energy-emitting unit, a tagging unit, at least one display unit, and a control unit. The energy-emitting unit is utilized for emitting at least one energy signal, wherein the mobile device generates at least one sensing signal by sensing the energy signal emitted from the energy-emitting unit. The tagging unit is coupled to the mobile device, and utilized for generating at least one tag associated with the person carrying the mobile device according to the sensing signal. The control unit is coupled to the tagging unit and the display unit, and utilized for controlling the display unit to display information according to the tag generated by the tagging unit.

Abstract: The present invention provides a location-based service delivering system and a location-based service delivering method for at least one person carrying a mobile device that can allow the delivery of location-based services without using the earth coordinates. The location-based service delivering system comprises: at least one sensing unit, a tagging unit, at least one display unit, and a control unit. The sensing unit is utilized for generating at least one sensing signal by sensing at least one energy signal emitted from the energy-emitting mobile device. The tagging unit is coupled to the sensing unit, and utilized for generating at least one tag associated with the person carrying the energy-emitting mobile device according to the sensing signal. The control unit is coupled to the tagging unit and the display unit, and utilized for controlling the display unit to display information according to the tag generated by the tagging unit.