Fig.5 Servo control for autofocusing 
1. 
Spindle for setting 
ID. 
Limiter 
enlargements 
11. 
Input amplifier 
2. 
Guide columns 
12. 
Rectifier (phase- 
3. 
Inversor curve 
conditioned ) 
4. 
Lens carriage 
13. 
Switching amplifier 
5. 
Negative carriage 
14. 
Motor relay 
6. 
Elbow lever 
15. 
Servo motor 
7. 
Core uf servo trans 
16. 
Gears 
former 
17. 
Spindle for moving 
8. 
Differential transformer 
the negative 
9. 
Power pack 
carriage