Abstract: Disclosed is a suit having a water-inflow double-blocking function. The suit includes a lower body portion, an upper body portion coupled to a top of the lower body portion and integral with the lower body portion, wherein the upper body portion has an opening defined in a top center of the upper body portion, and a neck cover coupled removably to the upper body portion, the neck cover including: a neck portion surrounding a neck, and an extension extending outwardly from a bottom of the neck portion to surround the neck, wherein the extension is inserted into the opening of the upper body portion and is coupled to an inner surface of the upper body portion, wherein the neck cover prevents water from flowing into the opening of the upper body portion.

Abstract: A combined seat cover and leisure coat includes a coat body that includes front and back panels and covers and protects an upper body and a part of a lower body of a wearer or covers a seat pad and a back support of a seat, a hood that covers and protects the wearer's head or is mounted on a headrest of the seat, a folding part that is provided on a lower portion of the back panel of the coat body so as to be foldable and covers one area of the seat pad of the seat, a pair of sleeves that cover and protect the wearer's arms or are bound to the back support of the seat, and fastening units that are provided on the pair of sleeves and fasten the pair of sleeves bound to the back support of the seat.

Abstract: A brightness colorimeter having a measurement error caused by linearly polarized light, which is corrected, includes: a lens module to which light irradiated from one side is input; a polarization conversion module configured to intersect the light input through the lens module to convert polarization characteristics; a spectral module provided in one unit block to reflect and intersect the light input through the polarization conversion module so as to branch the light in different three directions; filter modules arranged on progress paths of the light branched in different three direction through the spectral module to intersect monochromatic light beams having specific spectra among the light branched in the three directions; and measurement modules arranged to correspond to exit angles of the monochromatic light beams penetrated through the filter modules, to measure at least one of a brightness, a chromaticity, and an error obtained by the monochromatic light beams.

Abstract: A brightness colorimeter having a measurement error caused by linearly polarized light, which is corrected, includes: a lens module to which light irradiated from one side is input; a polarization conversion module configured to penetrate the light input through the lens module to convert polarization characteristics; a spectral module provided in one unit block to reflect and penetrate the light input through the polarization conversion module so as to branch the light in different three directions; filter modules arranged on progress paths of the light branched in different three direction through the spectral module to penetrate monochromatic light beams having specific spectra among the light branched in the three directions; and measurement modules arranged to correspond to exit angles of the monochromatic light beams penetrated through the filter modules, to measure at least one of a brightness, a colorimeter and a defect obtained by the monochromatic light beams.