What can Infrared cameras see through?

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Tags

1. #cameras
2. #detect
3. #focuses
4. #light
5. #waves
6. #present
7. #called
8. #energy
9. #infrared
10. #given
11. #sensor
12. #person
13. #thermal
14. #object
15. #objects
16. #visible
17. #lenses
18. #array
19. #imaging