Abstract: An illumination system including a plurality of light-emitting elements, a light combining module, a first lens group, a second lens group and a wavelength conversion device is provided. The plurality of light-emitting elements provide a plurality of first light beams. The light combining module is used for combining the plurality of first light beams into a second light beam. The wavelength conversion device is used for converting the second light beam into the third light beam or reflecting the second light beam. The first lens group has a first central axis. The first lens group includes a first part and a second part which are symmetrical with respect to the first central axis and have equal areas, and a luminous flux of the second light beam passing through the first part is greater than a luminous flux passing through the second part.

Abstract: An optical fingerprint recognition device includes a light-emitting diode (LED) array and a fingerprint sensing device. The LED array includes a central LED area and an edge LED area, and configured to display a light source pattern in response to a fingerprint sensing request. The light source pattern includes a central portion and a surrounding portion. During displaying the light source pattern, a plurality of red display subpixels of the central LED area are not illuminating and a plurality of red display subpixels of the edge LED area are illuminating. The fingerprint sensing device generates a first fingerprint image according to a plurality of first sensing signals obtained from a plurality of first sensing pixel area, and the first fingerprint image is adapted to be used for examining whether a finger which triggers the fingerprint sensing request is real or fake.

Abstract: Disclosed is a hydrophilic dressing (200) having appropriate mechanical strength, comprising a composite material (100, 220) and a film (210). The composite material (100, 220) comprises a hydrophilic substrate material (110) and a compound (120) that promotes wound healing, wherein the hydrophilic substrate material (110) is a reaction product of a hydrophilic polymer, wherein the hydrophilic polymer comprises a hydrophilic monomer, a cross-linking agent and an inorganic silicon-oxygen compound, wherein the compound (120) that promotes wound healing is distributed in the hydrophilic substrate material (110).

Abstract: A waterproof and air-permeable moist dressing which moisturizes and enhances color for aftercare of fresh tattoo. Therefore, the waterproof and air-permeable moist dressing can provide professional and medical repair, protection, isolation, and absorption of wound exudates and tattoo inks after tattooing to improve the aesthetical beauty of the tattoo.

Abstract: Disclosed is a hydrophilic dressing (200) having appropriate mechanical strength, comprising a composite material (100, 220) and a film (210). The composite material (100, 220) comprises a hydrophilic substrate material (110) and a compound (120) that promotes wound healing, wherein the hydrophilic substrate material (110) is a reaction product of a hydrophilic polymer, wherein the hydrophilic polymer comprises a hydrophilic monomer, a cross-linking agent and an inorganic silicon-oxygen compound, wherein the compound (120) that promotes wound healing is distributed in the hydrophilic substrate material (110).