Is Candela the same as foot-candles?

Is Candela the same as foot-candles?

Foot candle is a traditional measure of light illumination, while candela is a more modern measure of light intensity at the light source.

How many Candelas are in a foot-candle?

The answer is one Foot Candle is equal to 10.76 Candela Steradian/Square Meter.

Are foot-candles and lumens the same?

One foot-candle equals 10.76 lumens (a lumen is considered the same as lux, which is what most modern light meters calculate their measurements in), so in order to convert your foot-candles to lumens, you will need to take the amount of foot-candles measured and multiply by 10.76 to get the number of lumens.

How bright is .5 foot-candles?

How Bright Is 5 Foot Candles? The brightness of 5-foot candles is generally a more dim light that you’d expect in either a corridor in your home or in a typical store environment for a more commercial example.

Why is it called a foot-candle?

This measurement would go on to be called a footcandle because it represented the typical measure of light provided by a single source of illumination.

How many foot-candles is 1000 lumens?

To determine the needed lumens, you will need to multiply your room square footage by your room foot-candle requirement. For example, a 100 square foot living room, which needs 10-20 foot-candles, will need 1,000-2,000 lumens.

How many foot-candles are in a restaurant?

Well, the IES recommends between 3 and 6 footcandles at the dining table (depending on age)—but only 16% of restaurants reached this brightness—and most of those were deemed “too bright” by our surveyors. The vast majority of restaurants, 75%, had significantly lower illuminance levels—below 1.3 fc at the dining plate.

What is a good foot-candle reading?

A requirement of 20 foot candles is recommended for general spaces in offices. In areas where reading and detailed tasks are carried out, 50 foot candles of lighting is sufficient. Conference rooms and other areas where visually challenging tasks are occasionally performed may incorporate between 10-20 foot candles.

What is the difference between Lux and foot candle?

Foot-Candles & Lux. A single foot-candle is equivalent to the amount of light that falls on a surface that is one foot away from a single candle, and a lux is the amount of light that falls on a surface one meter away from a candle. For conversion, 1 foot-candle = 10.764 lux.

What is the difference between Candela and candela intensity?

The key difference between the two is that candela is specifically a measurement of directional intensity. One candela is close to the light intensity produced by an ordinary candle as perceived by the human eye, and addresses how bright a light source is in a particular direction.

What type of reflectors give the highest Candela?

Large, parabolic reflectors with smooth mirrored surfaces give the highest amount of Candela. These reflectors focus the light into a tight, directional beam. Smaller reflectors with rough surfaces (otherwise known as Orange Peel or OP for short) scatter light in a wider area. This reduces the intensity in a specific direction and lowers Candela.

What is the difference between lumens and Candela?

One Lumen is equal to one Candela of light at a distance of one meter from the light source, and we’ll see how that is measured further down.. If you want to focus on the overall brightness of a light, your material concern is Lumens.