Dictionary » U » Usable light range

Usable light range

usable light range

(Science: microscopy) The ratio of the maximum to the minimum levels of illuminance over which a video camera or camera tube can provide a usable signal. Being aided by automatic irises, gray-wedge wheels, etc., in addition to varying electrode voltages where permissible, the usable light range can be several orders of magnitude greater than the intrascene dynamic range.

See: intrascene dynamic range, condenser, variable-focus.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


The Fiber Disease

... such as being able to change the color of light beams (which may increase the capacity of ... These solid-state detectors have a wide range of applications in industrial production control, ... transforms invisible infrared to green light (usable for better disk memories), and a new crystal ...

See entire post
by London
Mon Dec 25, 2006 2:59 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5436051

The Fiber Disease

... Fiber, which provides 50 percent more usable wavelengths than today's conventional fiber. ... in the glass fiber that had made some light regions in the fiber spectrum previously unusable. ... time ever -- to provide a broader operating range for applications such as cable television ...

See entire post
by London
Thu Dec 07, 2006 7:23 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5436051

TO ANYBODY THAT HAS ANYQUESTIONS ON PHOTOSYNTHESIS

... and some protistans use the energy from sunlight to produce sugar, which cellular respiration ... used by all living things. The conversion of unusable sunlight energy into usable chemical energy, ... have critical wavelengths in the visible light range. The critical wavelength is the maximum ...

See entire post
by CoolJay221
Thu Feb 09, 2006 7:14 pm
 
Forum: Botany Discussion
Topic: TO ANYBODY THAT HAS ANYQUESTIONS ON PHOTOSYNTHESIS
Replies: 5
Views: 12166

Question: Does a plant constantly go through photosynthesis?

... and some protistans use the energy from sunlight to produce sugar, which cellular respiration ... used by all living things. The conversion of unusable sunlight energy into usable chemical energy, ... have critical wavelengths in the visible light range. The critical wavelength is the maximum ...

See entire post
by CoolJay221
Thu Feb 09, 2006 6:51 pm
 
Forum: Botany Discussion
Topic: Question: Does a plant constantly go through photosynthesis?
Replies: 3
Views: 9233


This page was last modified 21:16, 3 October 2005. This page has been accessed 805 times. 
What links here | Related changes | Permanent link