Meanings

crystal optics

Golden Light Sutra (as translated into Chinese by the monk I Ching)

Golden Light Sutra

phosphorescence

land of eternally tranquil light (highest realm in Tendai Buddhism)

light of wisdom (when nearing nirvana)

photoperiodism

optical cable

to keep a watchful eye on

to keep a watchful eye on

electron optics

great green turban (Turbo marmoratus)

optical vortex

tourism association

tourist trade

photoionization

photoionization

photometry

photometer

fluorescent dye