00494pamaa2200169 4500 0000024040 20110406090000.0 0132277948 535 BLA TA1520 BLA 2000 BLAKER Optics : an introduction for technicians and technologists J. Warren Blaker and Peter Schaeffer. New Jersey: Prentice Hall, 2000. vii, 229p.: ill.; 24cm. Light sources Optics Schaeffer, Peter