Back to Discover
⚛️

Focus (optics)

physical science Maturity 7-9

Light moves in lines.

Focusing on retina.svg
Focusing on retina.svg
These lines meet at a point. This point makes things look clear. If they do not meet, things look blurry.
FocusDemonstration-BambooRooftop.jpg
FocusDemonstration-BambooRooftop.jpg
It helps your eyes see well. Do you like seeing clear things?

40 words
🖼️ Images & Media (3)
File:Focusing on retina.svg
Focusing on retina.svg
File:FocusDemonstration-BambooRooftop.jpg
FocusDemonstration-BambooRooftop.jpg
File:DOF-ShallowDepthofField.jpg
DOF-ShallowDepthofField.jpg
Up Next
⚛️
Focal length
Physical Science
→
More to explore

✨ What else?

Related topics you might enjoy

Focal length 0% Aperture 0% Optical aberration 0% Virtual image 0% Optical power 0% Thin lens 0%

🔬 Go deeper

More advanced topics to explore

Diffraction-limited system Geometrical optics Optical telescope Magnification

🪜 Step back

Simpler topics to build understanding

Focal length Aperture Optical aberration Virtual image
📚 Content adapted from Wikipedia | Readability: FK 13.9 | Vital Level 4