With the rapid development of science and
technology, modern science and technology for the development of television
technology has played a role in fueling. LED stage lights as a product of
modern technology in film and television lighting techniques, particularly the
use of more extensive usage is also growing, much to replace conventional
general lighting trends in the production process in a number of variety shows
on TV.LED Stage Lighting Glossary include brightness.Illumination .flux .color
temperature.the channel.
Brightness refers to the area around a
point on the surface of the micro-units, the luminous intensity emitted in a
given direction divided by the unit projected area to the same direction, the
unit is: cd / c㎡. In lighting
systems are not normally encountered in the brightness of the concept.
2, Illumination
Illuminance refers to the density of a
surface of the light flux, which is incident on the luminous flux per unit
area, the unit is LX. The definition and measurement of the illuminance is more
complex, as the average illuminance cylindrical, spherical equivalent
illumination, illuminance of the scalar, and the measurement conditions are different
calculation methods. In the construction and decoration projects often
encounter, occasionally lighting system is also related to the concept of
illumination.
3, flux
Flux refers to the unit of time away from
the light source to the surrounding space radiation can cause visual reaction
energy, ie the energy of visible light. It describes the value of the effective
radiation source, the unit is 1m (lumens). The same power flux of the lamp may
be completely different, this is different because of their light efficiency's
sake. For example: ordinary light bulbs only 10 1m / W, while the metal halide
can reach 80 1m / watt.
4, color temperature
Hue refers to the color temperature of the
light emitted by the light source color temperature of a blackbody radiation at
the same time, the color temperature of the blackbody temperature of the light
source referred to generally in units of Kelvin k. For example, 3200k and 5600k
and so on. High color temperature, color light cool: low color temperature, color
light warm: When moderate color temperature, light and close to white. Under
normal natural sunlight, the color temperature of the light fixtures generally
have higher color temperature manually. Typically, the color temperature of the
sun is about 5600k, and studio lighting color temperature and performances are
3200k (hot source). But the recent cold light rise of television studio
lighting, is change the traditional light sources. Cold light of high color
temperature, low energy consumption, heat a small, indoor and outdoor camera
during phase, color temperature conversion is simple, the screen naturally, of
course cold light dimming sets performance requirements should be higher.
5, the channel
In modern optical control, the concept of
generating a new channel. It refers to a collection of a control circuit in the
luminaire. Specifically is this: has the function of a lamp needs to be
controlled separately (eg: focus, flash, color, etc.), and occupied Dimmer
output circuit is collectively channel. For example: a computer lights function
aperture, color, strobe, dimming, lens horizontal movement, vertical movement,
so they occupy channel is 6. It can be seen, the concept of channels or
traditional lighting control circuit evolved, but modern lighting is the
multiple channels together on one unified control device. Of course, more
advanced lighting, more complex, more action, the number of channels occupied
more likely, on the lighting console requirements are also higher. For example:
A 108 optical path, dimming station has a digital output, which in order to
control the computer with a 12-channel light, so it can control up to nine such
lamps, is how to control signals and address allocation problems a.
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