Abstract: Provided is a lens for a medical device. The lens includes a microstructural layer on a surface of the lens, and a coating layer on the microstructural layer. The coating layer is made of a self-assembled monolayer (SAM). Also provided is a method of manufacturing a lens for a medical device. The method includes forming a microstructural layer on a surface of the lens; and forming a coating layer on the surface on which the microstructure is formed. The coating layer is made of a self-assembled monolayer (SAM).

Abstract: The present invention relates to a portable speaker device usable with a container and a method for using the same. The portable speaker device has a structure to be mounted on containers of various kinds, materials, shapes and sizes to be discarded. That is, the portable speaker device includes a first mounting member mounted in an opening of a container. The portable speaker device further includes a second mounting member coupled to the first mounting member and provided to be mountable on containers of various sizes. The portable speaker device receives sound source data reproduced from a mobile device through wireless communication, and outputs the reproduced sound of a speaker through the container.

Abstract: The present invention relates to a portable speaker device usable with a container and a method for using the same. The portable speaker device has a structure to be mounted on containers of various kinds, materials, shapes and sizes to be discarded. That is, the portable speaker device includes a first mounting member mounted in an opening of a container. The portable speaker device further includes a second mounting member coupled to the first mounting member and provided to be mountable on containers of various sizes. The portable speaker device receives sound source data reproduced from a mobile device through wireless communication, and outputs the reproduced sound of a speaker through the container.