Wikimedia Commons

File:Black light bulb.jpg

Original file ‎(1,024 × 768 pixels, file size: 75 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary edit

Description
English: A Sanax 15W "black light" compact fluorescent bulb. It emits long-wave (UVA) ultraviolet light at around 365 nm, and is used for special lighting effects, such as illuminating fluorescent posters. The purple glow of the bulb is not the ultraviolet light itself, which is invisible, but visible purple light from mercury's 404 nm spectral line which leaks through the filter coating on the bulb, which is designed to stop most visible light and pass the ultraviolet. To the human eye, the light is much more blue, due to differences between the response of the eye and the camera sensor.
Date
Source http://en.wikipedia.org/wiki/Image:Black_light_bulb.jpg
Author Kallemax
Permission
(Reusing this file)
Public domain This work has been released into the public domain by its author, Kallemax at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Kallemax grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Licensing edit

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current00:52, 5 January 2009Thumbnail for version as of 00:52, 5 January 20091,024 × 768 (75 KB)Corentinoger (talk | contribs){{Information |Description= A Sanax 15W black light bulb |Source= Kallemax (edited by corentinoger) |Date= |Author= Kallemax |Permission= |other_versions= }}
00:47, 5 January 2009Thumbnail for version as of 00:47, 5 January 20091,024 × 768 (179 KB)Corentinoger (talk | contribs)experiencing with editing
00:46, 5 January 2009Thumbnail for version as of 00:46, 5 January 20091,024 × 768 (179 KB)Corentinoger (talk | contribs)more natural colours (cheating a bit)
06:47, 16 May 2006Thumbnail for version as of 06:47, 16 May 20061,024 × 768 (179 KB)SobakaRU (talk | contribs){{Information| |Description=A Sanax 15W black light bulb. To the human eye, the light is much more blue. |Source=http://en.wikipedia.org/wiki/Image:Black_light_bulb.jpg |Date=17:30, 23 February 2006 |Author={{PD-user|Kallemax}} |Permission={{PD}} |other_

You cannot overwrite this file.

The following 2 pages use this file:

File usage on other wikis

The following other wikis use this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Black_light_bulb.jpg&oldid=825175726"