Abstract: A method of manufacturing light emitting diode packaging lens and packages made by using the method are disclosed in the present invention. By using electrophoretic deposition, one or more layers of phosphors are coated onto one surface of a cup which has a curved portion. The cup is used for the packaging lens. Thickness of phosphor layer can be controlled and distribution of phosphor particles is uniform. Therefore, light emitting diode packages with the lens can be a uniform light source.

Abstract: A method for improving light extraction efficiency of a group-III nitride-based light emitting device is disclosed. The method includes the steps of: providing a group-III nitride-based light emitting device having a top surface; disposing a seed layer on the top surface for increasing adhesion of the group-III nitride-based light emitting device; and forming a patterned oxide layer, having a plurality of nanostructure particles, without absorption of visible light on the seed layer. The size and shape of the nanostructure particles are controlled by reaction concentration, time and temperature during the patterned oxide layer formation, thereby improving light extraction efficiency of the group-III nitride-based light emitting device without damaging the group-III nitride-based light emitting device.

Abstract: A method of forming a vertical structure light emitting diode with a heat exhaustion structure, comprising the steps of: providing a sapphire substrate; producing a number of recesses on the sapphire substrate, each of which has a depth of p; forming a buffer layer having a number of protrusions, each of which has a height of q smaller than p so that when the protrusions of the buffer layer are accommodated within the recesses of the sapphire substrate, a number of gaps are formed therebetween for heat exhaustion; growing a number of luminescent layers on the buffer layer, having a medium layer formed between the luminescent layers and the buffer layer; etching through the luminescent layers and the buffer layer to form a duct for heat exhaustion; removing the sapphire substrate by excimer laser lift-off (LLO); roughening the medium layer; and depositing electrodes on the roughened medium layer.

Abstract: A selective etching method with lateral protection function is provided. The steps includes: (a) providing a substrate; (b) forming a plurality of tunnels; (c) forming a lateral strengthening structure at a peripheral wall of the tunnels; (d) removing a bottom portion of the lateral strengthening structure, and a part of the substrate by an etching process so as to form a lower structure and expose an unstrengthened structure; and (f) etching the unstrengthened structure laterally so as to form an upper structure.

Abstract: A high-aspect-ratio-microstructure (HARM) is provided. The structure includes: a substrate; a lower structure with a comb shape fixedly mounted on said substrate and having first plural comb fingers, wherein each of the first plural comb fingers has a thin slot thereon; an upper structure with a comb shape having second plural comb fingers, wherein the lower structure and the upper structure have a height difference therebetween so as to form an uneven surface; and a lateral strengthening structure formed at vertically peripheral walls of the first plural comb fingers and the second plural comb fingers for protecting the plural first and second comb fingers.

Abstract: A selective etching method with lateral protection function is provided. The steps includes: (a) providing a substrate; (b) forming a plurality of tunnels; (c) forming a lateral strengthening structure at a peripheral wall of the tunnels; (d) removing a bottom portion of the lateral strengthening structure, and a part of the substrate by an etching process so as to form a lower structure and expose an unstrengthened structure; and (f) etching the unstrengthened structure laterally so as to form an upper structure.

Abstract: A high-aspect-ratio-microstructure (HARM) is provided. The structure includes: a substrate; a lower structure with a comb shape fixedly mounted on said substrate and having first plural comb fingers, wherein each of the first plural comb fingers has a thin slot thereon; an upper structure with a comb shape having second plural comb fingers, wherein the lower structure and the upper structure have a height difference therebetween so as to form an uneven surface; and a lateral strengthening structure formed at vertically peripheral walls of the first plural comb fingers and the second plural comb fingers for protecting the plural first and second comb fingers.

Abstract: A dynamic optical coupling device for coupling an optical signal from a static optical fiber to a dynamic optical fiber is provided. The device includes: a static element for inputting the optical signal, a static ferrule adaptor for mounting the static element therein to pass therethrough, a dynamic element for outputting the optical signal, a dynamic ferrule adaptor for mounting the dynamic ferrule element therein to pass therethrough, wherein a free space is formed between the static ferrule adaptor and the dynamic ferrule adaptor, a ferrule adaptor connector for connecting the static ferrule adaptor and the dynamic ferrule adaptor, and a supporting frame mounting the ferrule adaptor connector therein.

Abstract: An actuating mechanism for rotating a micro-mirror is disclosed. The actuating mechanism includes a first linking rod consisting of a first and a second portions, a second linking rod consisting of a third and a fourth portions, a first fulcrum positioned between the first and second portions, and a second fulcrum positioned at one side of the fourth portion opposite to the third portion. The first and third portions are flexibly connected to a shaft that the micro-mirror rotates with, and the second and fourth portions are coupled to respective actuators. When actuating forces are applied to move the second and fourth portions, the first and third portions are levered to rotate the shaft and thus the micro-mirror due to the effect of the fulcrums.