Abstract: The present invention relates to an optical component and a transparent body used in the optical component. The optical component includes at least one optical element that radiates ultraviolet light, and a package that accommodates the optical element. The package includes a mounting substrate on which the optical element is mounted, and a transparent body that is bonded to the mounting substrate with an organic-based adhesive layer therebetween. The package has a structure in which the ultraviolet light is transmitted through the transparent body but not guided to the adhesive layer, and the ultraviolet light does not directly come into contact with the adhesive layer.

Abstract: An optical component includes a first substrate including a phosphor substrate and a second substrate including a translucent substrate and supporting the first substrate. The translucent substrate has a polycrystalline structure with orientation.

Abstract: Various useful IC-related applications are provided using all solid lithium secondary batteries. For example, there is provided a power source for integrated circuit (IC) that includes an all-solid-state lithium secondary battery including a positive electrode layer, a solid electrolyte layer, and a negative electrode layer, wherein the all-solid-state lithium secondary battery itself has a function as a bypass capacitor, thereby being capable of supplying a temporarily increased peak current in addition to a steady current.