TINY WORLD / OPTICAL TWEEZERS

Light Leash

Move the light.
Can you carry a bead?

Bring a bead into the pocket. Then close it.

No timer. Take your time.

A little world in water

1× model time

TOP VIEW · 2D MODEL

How quickly will you move?

Light focusBeadCollection pocket

READY TO EXPLORE

The light starts off. Position it near a bead, then switch it on.

YOU STEER THE LIGHT

An open pocket

Carry a bead inside the gold ring, then close its little gate.

See the objective & water chamber

The same particle positions, seen in a schematic 3D apparatus. Keep steering in the top view.

Preparing the chamber view…

Particles follow the same 2D model. The objective, water depth and pocket wall height are illustrative. Purple marks the light focus; no optical ray trace or extra motion is added. Drag to orbit; arrows, + / − and Home also work.

Try a little more

Gentle water flow 1 µm/s →

Watch a free bead drift. Can the trap hold against the flow?

On-screen direction controls

Tap to nudge. Hold to keep moving.

Tap or drag to steer the light. Arrow keys also work when the chamber is selected.

Describe the chamber

Light Leash.

A little world in water

Light Leash