Lighting Soft

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August 12th, 2010 admin

Lighting Soft

Choose the correct light bulb has asked the University of

Is often the more general matter, the harder it attracted people’s attention, can the ordinary there are many interesting things in the doorway. A little look at, you will find the type of light bulb Tingzhi fact, come up with a true if the from, it may really can not tell people what light is on.

When one day we light bulb broken when one of the things most often is to throw it down the screw, and then as it was to buy another one, this one change at the most transparent, but is to become a scrub, and to mushroom into a spherical shape, and that was all. At the same time you replace the bulb, it also paid attention to it than other light bulbs?

A little look at, you will find the types of bulbs Tingzhi fact, ordinary light bulbs, halogen bulbs, tungsten light bulbs, energy saving light bulbs, spotlight bulbs and even fluorescent tubes of various shapes, streaky eight of the people vertigo.

But really is, although many types of light bulbs, it is not common to each other, except we are most familiar with the wattage and the light form of the mouth, the caliber, if you want to create a reasonable home lighting effects, it also re- consider some issues that are difficult in peacetime.

At home, because the function of each space should pay attention to individual differences in illumination, in order to achieve the desired effect. This is why we want to advance understanding of some basic indicators. If you aspire to be room design expert, then may wish to look back.

Basic indicators

[Luminous flux]:

That light energy emitted by a light source or light the rate of flow rate, the ability to explain the basic light source volume, in units of lumens (Lumen). A l00-watt (w) of the bulb can produce l750lm, and a 40w cool white fluorescent tubes of flux can be generated 3l5Olm

[Luminous intensity]:

Called brightness, is that a solid angle from the light source (in units of Sr) by the luminous flux emitted, that is, light source or lighting luminous flux emitted by the selected direction in the space density, in units of candles (cd). Luminous intensity of the light source can emit l2.57lm 1cd flux.

[Illumination]:

That is accepted by the plane according to the density of luminous flux, luminous flux available per unit area measured. llm l the flux distributed uniformly in the square (m2) surface, which produces a new lux (LUX, lX) of the illumination luminous flux falls 1lm l square feet (ft2) surface, the illumination value of l foot candles (Footcandle, fC). Desktop, face illumination not less than 150lX. Living room light soft lighting combined with the semi-direct type lighting better, its average intensity to be reached l00lX about. Reading and writing with the lamp power can be bigger, illumination should reach 200lX.

Bedroom is a room for rest and sleep require better privacy. Therefore, soft lighting requirements, there should be no strong optical stimulation to make people more likely to sleep, so as soon as possible to eliminate fatigue. The average room illumination should not exceed 50lX. Kitchen lighting should be Z00lX average illumination, while the bathroom lighting illumination should reach 100lX.

[Brightness or luminance]:

When the human eye can see something visual, can be expressed in two ways: one for higher values were as light-emitting light source or lamp, its light intensities directly; the other is for itself, not only the reflection of light emitting persons or the general objects such as indoor surface to the brightness that. According to object brightness Jibei in a certain direction per unit area emitted or reflected light intensity, which revealed that the difference between light and dark according to objects.

[Color temperature]:

In our eyes most of the light emitted as white light and all directions, in fact, different eye looks white light emitted by light sources because of the color temperature of the high and low but showing a different color. More bluish light color, the higher the reddish color temperature is lower color temperature. The eyes are sometimes fooled by their own sense of feel is insignificant, but in our photographs, you can see the most direct effect, as in pictures taken under the eyes empty, you may send cold blue, and in lighting photographs (not to open the flash), will present significant warm orange tone.

At home, can lighting color temperature characteristics of the light of the warm and cold colors to match, to create a variety of changes in lighting effects.

[Source efficiency]:

The efficiency of light sources emit light in lumens is its power consumption than its value obtained.

Lighting efficiency (Lm / w) = lm (Lm) / Power Consumption (W)

Each tile is the amount of light emitted by electric power, the higher its value the higher the efficiency that the light source, the more the energy. So often we are often efficient to consider an important factor.

Type of efficiency

Incandescent bulbs l5

Quartz halogen lamps 25

SL power-saving fluorescent light bulbs 65

Mercury 70

General fluorescent tube 60

pL-type fluorescent tube 85

pLC-type fluorescent tube 85

Now, the light bulb in the family can be divided into three basic types of

Normal light (incandescent light):

Lighting can be instantaneous. Set light, astigmatism, dimmer is easy; emitting area is small, can be a rich luster after the demonstration of light and three-dimensional, easy to control shadows, because they were using the longest, widest range, so match with lighting style a lot. Because the color temperature is low, given the light is actually orange-red color, can reveal the warm atmosphere.

Fluorescent:

Emitting area, the available light without a shadow of uniform, often as the overall lighting. Compact fluorescent lamps enriched pattern, also used for partial lighting, it can be installed in the transformer, it is a bright, flashing lights instead of instantaneous lighting. Fluorescent spectral curves and natural light and incandescent light are quite different, so it will show different colors, white light emitted by fluorescent green color is actually the (also orange fluorescent), the lighting is The problem is not, however, should be taken at home when the attention.

Halogen:

Patterns of small, high efficiency illumination and disadvantages for the blink of an eye, the heat is more, in residential use should pay special attention? Best not placed in direct exposure to eyes where the lighting effects for the lamp or in part is very good. Halogen bulb because the small size, can be used in special lamps in the shape.
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