Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.

Abstract: An HOD device, comprising: a framework; covering material, covering the frame work; at least one conductive region, provided on or in the covering material; wherein the conductive region is coupled to a capacitance detection circuit or a predetermined voltage level. The HOD device can be a vehicle control device such as a steering wheel. The conductive region comprises conductive wires which can be threads of the covering material. By this way, the arrangements of the conductive wires can be changed corresponding to the size or the shape of the frame work or any other requirements. Also, the interference caused by unstable factors can be improved since the conductive wires can be coupled to a ground source of the vehicle to provide a short capacitance sensing path.

Abstract: A silica aerogel-containing polyester masterbatch includes a polyethylene terephthalate resin, a silica aerogel powder, and a dispersing agent. The silica aerogel powder is dispersed in the polyethylene terephthalate resin, and is present in an amount ranging from 5 wt % to 30 wt % based on 100 wt % of the silica aerogel-containing polyester masterbatch. The dispersing agent is dispersed in the polyethylene terephthalate resin, is selected from the group consisting of a paraffin oil, a silane compound, a wax including C28-C32 straight chain monoacids, and combinations thereof, and is present in an amount ranging from 0.1 wt % to 4.0 wt % based on 100 wt % of the silica aerogel-containing polyester masterbatch. A method for preparing the silica aerogel-containing polyester masterbatch, and a silica aerogel-containing polyester fiber made from the same are also disclosed.