National Central University

Shiuan-Huei Lin

Ching-Cherng Sun

Yeh-Wei Yu

Tsung-Hsun Yang

Shao-Kui Zhou

Wen-Kai Lin

Wei-Chia Su

A spectrometer system with a volume holographic light guide element includes two focusing lenses in addition to the volume holographic light guide element, which has a light guide element and two volume holographic elements. The first focusing lens receives the light emitted by a to-be-tested light source at a first focal plane of the first focusing lens and makes the light converge and form plural collimated light beams that are projected to, and diffracted and coupled into the light guide element by, the first volume holographic element, are then received and coupled out of the light guide element by the second volume holographic element, and are subsequently received and focused on a sensing element by the second focusing lens. Each collimated light beam enters and exits the light guide element at the same angle. The spectrometer system can measure the intensity/chromatic uniformity of a relatively weak point/surface light source efficiently.

Growing community of inventors

Taoyuan, Taiwan

Shiuan-Huei Lin