File:Black light bulb.jpg
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Original file (1,024 × 768 pixels, file size: 75 KB, MIME type: image/jpeg)
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Summary[edit]
DescriptionBlack light bulb.jpg |
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. |
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Date | ||||
Source | http://en.wikipedia.org/wiki/Image:Black_light_bulb.jpg | |||
Author | Kallemax | |||
Permission (Reusing this file) |
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Licensing[edit]
Public domainPublic domainfalsefalse |
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
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:52, 5 January 2009 | 1,024 × 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 2009 | 1,024 × 768 (179 KB) | Corentinoger (talk | contribs) | experiencing with editing | ||
00:46, 5 January 2009 | 1,024 × 768 (179 KB) | Corentinoger (talk | contribs) | more natural colours (cheating a bit) | ||
06:47, 16 May 2006 | 1,024 × 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_ |
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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.
Camera manufacturer | KYOCERA |
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Camera model | FC-3300 |
ISO speed rating | 64 |
Date and time of data generation | 17:30, 23 February 2006 |
Lens focal length | 7.8 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 01:19, 5 January 2009 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.1 |
Date and time of digitizing | 17:30, 23 February 2006 |
Image compression mode | 1.6 |
APEX shutter speed | 5.49 |
APEX aperture | 3.21 |
Metering mode | Pattern |
Flash | Flash did not fire |
Color space | sRGB |