M PHOTONS

Air analysis apparatus; Air quality measurement apparatus, namely, particle counters; Electro-optic transducers; Headphones in the form of headbands; Lasers for industrial use; Lasers for measuring; Loud speakers; Photomultiplier tubes; Photovoltaic systems that convert sunlight into electric and thermal energy; Quantum dots, namely, crystalline semi-conductor material; Raster image processors; Smartphone mounts; Spectrograph apparatus; Super luminescent laser diodes; Three dimensional (3D) scanners