11.   Brenner started Cogent Light as a spinoff of LaserMedia, a Los Angeles-area company that provided laser light systems for entertainment attractions.

12.   But even as it gained FDA approval, Palomar said another company had sued it for patent infringement over the laser system.

13.   Cave says he is optimistic the laser system will help many patients avoid endoscopy.

14.   Coherent designs and makes electro-optical systems, industrial laser systems and other medical instruments.

15.   Critics of laser systems maintain that soldiers, police and civilians will inevitably be blinded in large numbers if and when such weapons proliferate to armies and terrorists.

16.   Defenders of laser systems say the Red Cross is exaggerating this difficulty.

17.   Each side will have its own laser system.

18.   Even the laser system can be fooled.

19.   Field tests of an outdoor laser system will be conducted this summer and next year, he says.

20.   He then went to work for a company in Sunnyvale that created a laser system that could read vinyl records.