Kimihiro Kikuchi

Optical transmission/reception module

Optical transmitting and receiving module

Module for optical fiber communication

Holder/optical-element assembly

Lens having diaphragm structure at outer edge portion on incident side thereof and optical unit using same

Lens fixing structure

Optical element having integrated optical lens and lens holder, and production method therefor

Holder-mounted optical element

Optical fiber retainer

Method for manufacturing lens with lens barrel