Image: Ultraviolet light bulb 2
Size of this preview: 475 × 600 pixels. Other resolutions: 190 × 240 pixels | 768 × 970 pixels.
Original image (768 × 970 pixels, file size: 75 KB, MIME type: image/jpeg)
Description: A 100 watt "black light" ultraviolet light bulb. This is an incandescent bulb with a coating on the glass which selectively absorbs visible light and passes ultraviolet. Since only a tiny fraction (0.1%) of the light emitted by the filament is ultraviolet, most of the light is absorbed by the coating, so the bulb gets very hot, and has a short lifetime. Because of differences between the UV response of the camera sensor and the human eye, the camera failed to capture the color of the bulb quite accurately; the filament actually appears magenta, not white.
Usage Terms: Public domain
Image usage
The following page links to this image:
All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used under Attribution-ShareAlike license, unless stated otherwise.
