🔍Magnifying glassConvex lens held close makes a bigger, upright image.

👓GlassesConvex lenses help far-sighted eyes; concave lenses help near-sighted eyes.

📷CameraA convex lens focuses a small, upside-down image on the sensor.

📽️ProjectorA convex lens makes a big image on a screen.

🔭TelescopeLenses gather and magnify light from far away.

👁️Your eyeHas its own adjustable convex lens!