Abstract: A contact lens according to one embodiment of the present disclosure includes a lens substrate to be worn on an eyeball, an antenna unit that is provided on the lens substrate and receives alternating-current energy through a human body, and a load that receives electric power supplied from the antenna unit. The antenna unit includes a first antenna element including a first conductor and a second antenna element including a second conductor. The first conductor is provided on the lens substrate at a position that is in contact with the eyeball or an eyelid when an eye is open. The second conductor is provided on the lens substrate at a position that is separated from the first conductor by a predetermined gap and not in contact with the eyeball or the eyelid when the eye is open.

Abstract: The present invention relates to a process for producing an anode for a secondary battery, which is capable to reduce a contact resistance between a sintered material which contains silicon as an anode active material and a current collector. A binder and a solvent are mixed with a silicon-containing anode material to prepare a slurry. A base material made of a foil or mesh of conductive metal is coated with the slurry, and the solvent is removed to form a coated film. The coated film is sintered in a non-oxidizing atmosphere, thereby integrating a sintered material of the coated film with the base material.