The present invention relates to a nano-structured surface, including the base layer, the base layer and the large number of fixed nanoparticles. The surface of the water contact angle greater than 145 degrees. The invention also relates to a method for preparing nano-structured surface in situ, inc.....
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The invention provides a side emitting light emitting diode light source within the lens. Its role is to change the light emitting diode chip emitting direction, most of the light from the side of the light emitting diode chip along the central vertical axis of the very small angle inward gathered a.....
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The present invention provides an optical fiber having the gas laser and the laser optical fiber ring laser gyroscopes. The optical fiber comprises a gas laser excitation gas, the excitation source and the optical cavity, characterized in that the optical cavity by the hollow fiber and single mode f.....
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The invention provides a microneedles array, a method for manufacturing the microneedles array and a die for manufacturing the microneedles array. The microneedles array comprises a base and a plurality of microneedles which are integrated with the base, wherein a liquid storage cavity is arranged i.....
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The invention relates to a mechanical zoom lens device which comprises a first cylinder (103) provided with a zoom curve groove (117) and a compensating curve groove (116), a second cylinder (104) provided with a straight line groove (115), a first circular ring (105) provided with a first keyhole (.....
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