1 cd = 0 ph
1 ph = 10,000 cd
Example:
Convert 15 Candela to Phot:
15 cd = 0.002 ph
| Candela | Phot |
|---|---|
| 0.01 cd | 1.0000e-6 ph |
| 0.1 cd | 1.0000e-5 ph |
| 1 cd | 0 ph |
| 2 cd | 0 ph |
| 3 cd | 0 ph |
| 5 cd | 0.001 ph |
| 10 cd | 0.001 ph |
| 20 cd | 0.002 ph |
| 30 cd | 0.003 ph |
| 40 cd | 0.004 ph |
| 50 cd | 0.005 ph |
| 60 cd | 0.006 ph |
| 70 cd | 0.007 ph |
| 80 cd | 0.008 ph |
| 90 cd | 0.009 ph |
| 100 cd | 0.01 ph |
| 250 cd | 0.025 ph |
| 500 cd | 0.05 ph |
| 750 cd | 0.075 ph |
| 1000 cd | 0.1 ph |
| 10000 cd | 1 ph |
| 100000 cd | 10 ph |
The candela (symbol: cd) is the SI unit of luminous intensity, representing the amount of light emitted by a source in a particular direction. It is a fundamental unit in photometry, which is the science of measuring visible light as perceived by the human eye. The candela is crucial for understanding how light interacts with our environment, making it essential for various applications in lighting design, photography, and visual arts.
The candela is standardized based on the light emitted by a source that radiates monochromatic light at a frequency of 540 terahertz (THz) and has a radiant intensity of 1/683 watt per steradian. This standardization ensures consistency in measurements across different contexts and applications, allowing professionals to rely on accurate and comparable data.
The concept of the candela has evolved significantly since its inception. Initially, it was based on the light produced by a specific type of candle. However, as science progressed, the need for a more precise and universally applicable unit became evident. The candela was officially adopted as part of the International System of Units (SI) in 1979, reflecting advancements in photometric measurements and technology.
To illustrate the use of the candela, consider a light source that emits a luminous intensity of 100 candelas. If you want to calculate the total luminous flux (in lumens) emitted by this source over a solid angle of 1 steradian, you would use the formula: [ \text{Luminous Flux (lm)} = \text{Intensity (cd)} \times \text{Solid Angle (sr)} ] Thus, for our example: [ \text{Luminous Flux} = 100 , \text{cd} \times 1 , \text{sr} = 100 , \text{lm} ]
The candela is widely used in various fields, including:
To interact with our Candela Illuminance Unit Converter Tool, follow these simple steps:
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By utilizing our Candela Illuminance Unit Converter Tool, you can enhance your understanding of light measurements and make informed decisions in your projects. For more information and to explore additional tools, visit Inayam.
The phot (symbol: ph) is a unit of illuminance that measures the amount of light received per unit area. Specifically, one phot is defined as one lumen per square centimeter. This measurement is crucial in fields such as photography, horticulture, and interior design, where understanding light levels is essential for optimal performance and aesthetics.
The phot unit is part of the CGS (centimeter-gram-second) system, which is a metric system of physical units. Although the phot is not commonly used in modern scientific literature, it serves as a historical reference point for illuminance measurement. The SI unit for illuminance is the lux, where 1 phot equals 10,000 lux.
The phot was introduced in the early 20th century as a means to quantify light levels in various environments. Over time, the need for a more standardized and universally accepted unit led to the adoption of the lux as the primary unit of illuminance in the International System of Units (SI). Despite this shift, the phot remains relevant for specific applications and historical context.
To convert illuminance from lux to phot, you can use the following formula: [ \text{Illuminance in phot} = \text{Illuminance in lux} \times 0.0001 ]
For example, if you have an illuminance level of 500 lux, the equivalent in phot would be: [ 500 \text{ lux} \times 0.0001 = 0.05 \text{ ph} ]
The phot is particularly useful in specialized fields such as:
To use our Phot Converter Tool, follow these simple steps:
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By utilizing the Phot Converter Tool, users can easily convert illuminance measurements and gain a better understanding of light levels in their specific applications. This tool not only enhances user experience but also contributes to improved SEO rankings by addressing relevant keywords effectively.
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