Luminous Flux Transmitted By Object Calculator

Luminous Flux Transmitted By Object Formula:

\[ L_t = \tau \times L_i \]

Luminous Flux Transmitted by Object (L_t):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Luminous Flux Transmitted by Object?

Luminous Flux Transmitted by Object is defined as the measure of the perceived power of light that passes through an object or material. It represents the amount of luminous flux that is transmitted rather than absorbed or reflected by the object.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ L_t = \tau \times L_i \]

Where:

\( L_t \) — Luminous Flux Transmitted by Object (Lumen)
\( \tau \) — Transmission Factor (unitless)
\( L_i \) — Luminous Flux Incident upon Object (Lumen)

Explanation: The formula calculates the amount of light that passes through an object by multiplying the incident luminous flux by the transmission factor of the material.

3. Importance of Luminous Flux Calculation

Details: Calculating transmitted luminous flux is crucial for optical engineering, lighting design, material science, and various applications where light transmission through materials needs to be quantified and optimized.

4. Using the Calculator

Tips: Enter the transmission factor (0 to 1) and the incident luminous flux in lumens. Both values must be non-negative numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the range of transmission factor values?
A: Transmission factor values range from 0 (complete absorption) to 1 (complete transmission), representing the fraction of light that passes through the material.

Q2: What are typical units for luminous flux?
A: Luminous flux is measured in lumens (lm), which quantifies the total amount of visible light emitted by a source.

Q3: How does this differ from luminous intensity?
A: Luminous flux measures total light output, while luminous intensity measures light output in a specific direction (candelas).

Q4: What factors affect transmission factor?
A: Material composition, thickness, wavelength of light, surface quality, and angle of incidence all affect the transmission factor.

Q5: Can this formula be used for colored filters?
A: Yes, but the transmission factor may vary significantly with different wavelengths of light, so specific spectral data may be needed for accurate calculations.