Electronics and Telecommunications Research Institute

Jun Hwan Shin

Kyung Hyun Park

Il Min Lee

Hyun Soo Kim

Jeong Woo Park

Eui Su Lee

Dong Woo Park

Kiwon Moon

Sang-Pil Han

Ho Joon Lee

Dahye Choi

Kyeong Sun Choi

Provided are a polygon mirror assembly and a scan device. A polygon mirror assembly includes: a polygon mirror including a plurality of reflection surfaces spaced apart from a rotation axis by a predetermined distance; a first motor for rotating the polygon mirror around the rotation axis; a second motor for moving the polygon mirror in a first axial direction such that the rotation axis is tilted while the first motor rotates the polygon mirror; and a clock signal extraction surface for extracting a clock signal for detecting a change in a rotational speed of the first motor.

Polygon mirror assembly and scan device

A Schottky barrier diode includes a substrate, a first semiconductor layer formed on the substrate, a second semiconductor layer formed on the first semiconductor layer, and a metal layer formed on the second semiconductor layer to form a Schottky barrier, wherein the first semiconductor layer and the second semiconductor layer are formed of different materials, and a conduction band offset between the first semiconductor layer and the second semiconductor layer is less than a set value.

Schottky barrier diode and method for manufacturing the same

An image acquisition apparatus including a beam source, a beam expander, a beam splitter, an interferometer reference arm, a sample, a beam diffuser, a telecentric f-&#x3b8; lens, a beam scanner, and a beam detector uses a terahertz wave to acquire a surface image and a depth image of the sample.

Apparatus for acquiring image using terahertz wave

Growing community of inventors

Daejeon, South Korea

Jun Hwan Shin