CA1193893A
|
|
Focusing elements and system for producing a prescribed energy distribution along an axial focal zone
|
CA1215467A
|
|
Apparatus for improving focus during playback of an optical data record
|
US4622284A
|
|
Process of using metal azide recording media with laser
|
US4545653A
|
|
Focusing elements and system for producing a prescribed energy distribution along an axial focal zone
|
US4495609A
|
|
Recording and playback system
|
CA1182908A
|
|
Optical track segment intercept apparatus
|
US4426696A
|
|
Optical playback apparatus focusing system for producing a prescribed energy distribution along an axial focal zone
|
US4321700A
|
|
Optical track segment intercept apparatus
|
US4320488A
|
|
Recording and playback system
|