Abstract: A system of assessing performance of a photocuring light source includes a photocuring light source unit, a light source control unit, a sensing unit, and a computer unit. The light source unit produces light rays on a work platform of a printing machine. The light source control unit is electrically coupled to and controls the light source unit. The sensing unit is disposed proximally to the light source unit to detect power of the light rays from the light source unit. The computer unit is electrically coupled to the sensing unit and the light source control unit to control the light source unit and record the power of the light rays and operating period of the light source unit. A combination having the system is also disclosed.

Abstract: A system of assessing performance of a photocuring light source includes a photocuring light source unit, a light source control unit, a sensing unit, and a computer unit. The light source unit produces light rays on a work platform of a printing machine. The light source control unit is electrically coupled to and controls the light source unit. The sensing unit is disposed proximally to the light source unit to detect power of the light rays from the light source unit. The computer unit is electrically coupled to the sensing unit and the light source control unit to control the light source unit and record the power of the light rays and operating period of the light source unit. A combination having the system is also disclosed.

Abstract: A method of simulating print color on mobile devices, comprising: obtaining a second group of tristimulus values by a chromaticity measuring device through a measuring method; creating a CIEXYZ color space of the mobile device by the second group of tristimulus values, and transforming the CIEXYZ color space to a sRGB color space via a 1D lookup table and a transformation matrix; obtaining a print color from a ICC profile of an output device by 3D lookup table and generating a second color calibrated profile by finding another color, similar to the print color from the ICC profile of the output device, in the sRGB color space through tone mapping; and simulating the print color on a screen of the mobile device by using the second color calibrated profile, whereby the user can directly preview the printed photo on the screen thereby achieving saving print ink and time.

Abstract: The present invention provides a low-cost and environment-friendly decorative building material and its manufacturing method to obtain a stone-like surface without actually using natural stones.