TSMC Solid State Lighting Ltd.

Chih-Hsun Sun

Wei-Yu Yeh

Hsueh-Hung Fu

Dong Jung Suen

The present disclosure provides a lighting instrument. The lighting instrument includes a recessed light fixture, for example a troffer light or a batten light. The light fixture includes a plurality of light-emitting diode (LED) devices located on a board. The light fixture also includes a diffuser cap located on the board and housing the LED devices therein. The diffuser cap includes a plurality of coating regions. Each coating region is coated by a film containing white particles. The white particles can reflect and diffuse light emitted by the LED devices. The film in each coating region has a different white particle concentration level than other coating regions.

Growing community of inventors

Kaohsiung, Taiwan

Chih-Hsun Sun