Abstract: A faucet includes a faucet body, a sleeve, a control valve, and a mounting seat. The control valve includes a control shaft, a stop gasket, a retaining member, a leakproof gasket, a sealing gasket, a first leakproof cap, a second leakproof cap, a control knob, and a restoring member. Thus, the sealing gasket, the leakproof gasket, the first leakproof cap and the second leakproof cap of the control valve are tightly and closely located between the control shaft and the through hole of the faucet body to seal the through hole so as to prevent the water from leaking from the through hole and to stabilize the water pressure in the faucet body.

Abstract: A method of an anti-glare surface treatment including following steps is provided. First, a resin layer is formed on a substrate. Next, the substrate is placed in a chamber that is filled with a water steam. A number of micro cavities are formed on a surface of the resin layer on the substrate by means of collision of the water steam. The resin layer on the substrate is then cured. The above-mentioned method of the anti-glare surface treatment is easy in process, low in cost and good in quality control.

Abstract: A lens assembly comprises an aperture and a lens group consisting of a first, a second, a third, and a fourth lens element. The first lens element is a bi-convex lens element disposed at the front side of the lens assembly. The second lens element is a bi-concave lens element. The third lens element is a meniscus lens element with its convexity facing the rear side of the lens assembly, and the fourth lens element is a bi-convex lens element disposed at the rear end of the lens assembly. The aperture is disposed on the front side of the first lens element.