Lumen Calculator 4+

Name: Lumen Calculator
Price: 2.99 USD
Author: Nitrio

Conv Lumens, Lux and Candelas

Nitrio

Designed for iPad

- $2.99

Description

The Lumen Calculator is a physics/math calculator designed to swiftly and easily convert between lumens, lux, and candelas.

Features:
- Instant calculation
- Results are copyable to other apps
- Formulas included as references
- Supports up to 16 decimal places
- Supports various units for each input

Definitions:
- Lumens: Unit of luminous flux, representing the total amount of light emitted by a source.
- Lux: Measure of surface illumination, indicating how much light is received by a surface.
- Candelas: SI units of luminous intensity, representing light emitted from a source in a particular direction per steradian.

Note:
Candelas measure the light emitted in a specific direction, while lux measures the light received per unit area. One steradian, the area of the receiving surface, is equal to the squared distance between the source and the receiver.

Formulas:
1. Lumens = Candelas * Ω
(For a specific angle)
2. Lumens = Candelas * 2π * [1 - cos(θ/2)]
3. Lux = Lumens / Area
4. Lux = Candela / Distance²

Where:
Ω = 2π * [1 - cos(θ/2)]
Ω = 4π

Thanks for your support, and please visit nitrio.com for more apps for your iOS devices.

Jan 24, 2024

Version 1.2

- Updated for the newest devices.
- Minor UI update.
- Minor bugs fixed.

Not for me

This app does not do what I was led to believe it would produce. If this app is rated for age 4+, then I must be an idiot. Wish I could get my money back. Thank goodness it didn’t cost much!

The developer, Nitrio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.