Light bulb from a car headlamp

Light bulb from a car headlamp

T860/0182 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.1MB

Downloadable file size: 5.1MB

Price image Pricing

Please login to use the price calculator


Caption: Light bulb from a car headlamp. This is a tungsten-iodide bulb, designed to be more reliable and work at higher temperatures than normal light bulbs. In an ordinary light bulb tungsten in the heated filament gradually evaporates, blackening the bulb and causing the filament to thin until it snaps. In a tungsten-iodide bulb the atmosphere is iodine. This combines with evaporated tungsten atoms to form tungsten-iodide, a gas. When this gas is warmed by the filament this molecule decomposes into tungsten and iodine again, redepositing tungsten on the filament.

Release details: Model release not required. Property release not required.

Keywords: chemical, chemistry, headlamp, industrial, industry, light bulb, physical, physics, technological, technology, transport industry, tungsten iodide bulb

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.