Nittoh Kogaku K.k.

Nittoh Inc.

Keio University

Takashi Iwamoto

Kenji Sakurai

Yasuhiro Koike

Keiichi Mochizuki

Akihiro Tagaya

Kazumasa Osumi

A lens barrel has at least one movable lens group that can move in one direction and the other direction along the optical axis, the lens barrel comprising: a movable lens frame; a voice coil motor for driving a movable lens group and the movable lens frame along the optical axis; and a stopper mechanism brought into contact with the movable lens frame. The stopper mechanism includes a stopper member that moves between a retracted position where the stopper member does not touch the movable lens frame when the voice coil motor is energized, and an abutting position where the stopper member is brought into contact with the movable lens frame when the voice coil motor is not energized.

Lens barrel and camera device

Provided is an illumination module capable of preventing a light exit surface from being darker along peripheral edge portions as though having borders. An illumination module () includes: a light guiding plate (), which has an end surface () and a first principal surface (); a light source () configured to emit light that enters the end surface (); and a diffusion plate (), which has alight incident surface () and a light exit surface (). The diffusion plate () includes a protruding part (), which protrudes toward the light guiding plate () side and the light source (), which is positioned so as to face a peripheral edge portion () on the end surface () side of the light guiding plate (), and which has a light incident surface () into which light exiting the peripheral edge portion () enters.

Illumination module

Lighting fixture

Growing community of inventors

Suwa, Japan

Takashi Iwamoto