Abstract:
Methods of controlling semiconductor lasers are provided where the semiconductor laser generates a wavelength-modulated output beam λMOD that is directed towards the input face of a wavelength conversion device. The intensity of a wavelength-converted output λCONV of the device is monitored as the output beam of the laser is modulated and as the position of the modulated output beam λMOD on the input face of the wavelength conversion device is varied. A maximum value of the monitored intensity is correlated with optimum coordinates representing the position of the modulated output beam λMOD on the input face of the wavelength conversion device. The optical package is operated in the data projection mode by directing an intensity-modulated laser beam from the semiconductor laser to the wavelength conversion device using the optimum positional coordinates. Additional embodiments are disclosed and claimed. Laser controllers and projections systems are also provided.
Abstract:
A glass ceramic composition and a process for making said glass ceramic are disclosed. Said glass ceramic composition comprises of greater than 0 to 3% Li20, 15 - 27% A1203, 60 _ 85% Si02, and greater than or equal to 1% Sn02. Moreover, said glass ceramic is a bulk crystallized glass ceramic and exhibits diffuse transmission greater than or equal to 20% from 400 nm to 1200 nm.