Asia Optical Co., Ltd.

Feng Chia University

Yi-Sheng Chang

Jo-Shu Chang

Ping-Jei Lin

Yu-Shin Huang

Kuo-Shing Lee

An optical filter includes a substrate and a filter film attached on the substrate. The filter film has alternate layers of high reflective layers and low reflective layers to form a plurality of Fabry-Perot resonators. A basic optical thickness of the high reflective layers and the low reflective layers is one fourth a central wavelength (&#x3bb;/4) of incident ray, and each of the Fabry-Perot resonators has two high reflector films and a spacer between the high reflector films. The spacers in the Fabry-Perot resonator, which is most proximal to the substrate, and in the Fabry-Perot resonator, which is most distal to the substrate, have an optical thickness respectively in a range between four times the basic optical thickness and fourteen times the basic optical thickness.

Optical interference bandpass filter

Disclosed herein is a process for enhancing anaerobic biohydrogen production, including: adding into a reactor an organic waste containing hydrogen-producing anaerobic bacteria, a first substrate, and a carrier that permits the hydrogen-producing anaerobic bacteria to adhere and grow thereon, so as to form a mixture; acclimating the mixture at a first agitation speed ranging from 5 to 60 rpm, so that the hydrogen-producing anaerobic bacteria adhere to and proliferate on the carrier, followed by the formation of granular biomasses within the acclimated mixture; and feeding a second substrate into the reactor at a second agitation speed ranging from 5 to 60 rpm, so that the content of the granular biomasses is increased while the second substrate is anaerobically fermented by the hydrogen-producing anaerobic bacteria in the granular biomasses to result in the production of hydrogen.

Growing community of inventors

Taichung, Taiwan

Yi-Sheng Chang