Industrial Technology Research Institute

Epistar Corporation

Sheng-Chieh Tai

Wen-Yung Yeh

Kuang-Yu Tai

Yi-Jen Chan

Chia-Ling Li

Ming-Hsien Wu

Ming-Te Lin

Chia-Hsin Chao

Wen-Yih Liao

Ming-Yao Lin

Hsi-Hsuan Yen

Chen-Yang Huang

Chun-Feng Lai

Yu-Hung Chuang

Tse-Peng Chen

Chih-Hsuan Liu

An alternating current (AC) light emitting device includes an AC light emitting diode (LED) module and a waveform modulation unit. The AC LED module includes at least two sets of micro-diodes. The waveform modulation unit coupled between the AC LED module and an AC voltage source modulates a waveform of the AC voltage source.

Alternating current light emitting device

The invention provides a solar energy system. A flexible transparent body includes a top surface, a bottom surface and two edges, wherein the top surface is a light receiving surface for receiving light with a first wave-length. A plurality of solar cells is disposed on at least one of the edges of the flexible transparent body, wherein the solar cells can covert light having a second wave-length into electrical energy. A wavelength converting layer is provided for converting light with the first wave-length to light with the second wave-length.

Solar energy system

A projection apparatus is provided. The projection apparatus includes a light-emitting unit array, an optical sensor, and a control unit. The light-emitting unit array is for emitting an image beam. The optical sensor is for detecting electromagnetic waves so as to generate a signal. The control unit is electrically coupled to the light-emitting unit array and the optical sensor for controlling emission of the light-emitting unit array according to the signal from the optical sensor.

Imaging apparatus having an optical sensor

A light emitting diode (LED) package comprising a carrier, an LED chip, a lens, and a phosphor layer is provided. The LED chip disposed on the carrier. The lens encapsulating the LED chip has a plurality of fins surrounding the LED chip and a conical indentation. The fins extending backward the LED chip radially. Each of the fins has at least one light-emitting surface and at least one reflection surface adjoining the light-emitting surface. A bottom surface of the conical indentation is served as an total reflection surface. The phosphor layer is disposed on the light-emitting surfaces of the lens. An LED package and an LED module are also provided.

Light emitting diode package and light emitting diode module

Growing community of inventors

Taichung County, Taiwan

Sheng-Chieh Tai