How does laser autofocus work?

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Tags

1. #regular
2. #laser
3. #employing
4. #detection
5. #range
6. #other
7. #subject
8. #distinct
9. #light
10. #focusing
11. #phase
12. #autofocus
13. #faster
14. #mirror
15. #determining
16. #behind
17. #sensor
18. #beams
19. #focused
20. #lighting
21. #works