Carbon Filament Lamp in Shielded Box

Details

9B60 - Light Sources

Demo use only

Instances

G2B20A - Demo West (Duane Physics)

Good - Normal Wear Demo use only

Used in these demonstrations

Wooden 8x10 view camera with black bellows extended, metal lens on front standard, mounted on wooden base with metal rails

8 x 10-Inch View Camera

A large-format view camera projects an inverted, real image of a carbon filament lamp onto a ground glass screen. Students directly observe image formation by a converging lens and the …

Large concave mirror in a round metal frame on a wooden base, with an adjustable brass lab stand beside it; a projected image of the carbon filament is visible on the blackboard behind

Concave and Convex Hand Mirrors

Demonstrates real and virtual image formation using concave and convex hand mirrors with a carbon filament lamp. Students observe inverted real images projected by the concave mirror and diminished virtual …

Lecture hall with translucent screen on left showing inverted real image of a glowing lamp filament, large convex lens on tripod in center, and boxed lamp visible in background right

Convex Lens and Lamp

A large convex lens (f = 220 cm) projects a real, inverted image of a lamp filament onto a screen. Students directly observe real image formation and can verify the …

Full setup: translucent screen at left, multicolor LED tower on stand at center, incandescent light bulb in wooden box at right, with bar clamp, lead brick, and masks on bench

Introducing a Pinhole

A sequential progression from shadow casting through slit projection to pinhole imaging. Students build intuition for rectilinear propagation, image inversion, and the pinhole camera principle by drawing ray diagrams at …

Two small pith balls suspended by fine threads from a bent metal rod, positioned between a lamp (left) and a projection screen showing filament-shaped shadow patterns

Negative Pinhole

Demonstrates the "negative pinhole" effect: small opaque objects cast shadows that transition from object-shaped to source-shaped as the object moves closer to the light. Students learn that rectilinear propagation allows …

Reserve This Equipment

Demo use only

This equipment supports lecture demonstrations and cannot be reserved directly — it is assigned automatically as part of a demonstration. To use it, request a demo that includes it.