Supported Features
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Dark Interface
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Differentiate Without Color Alone
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Sufficient Contrast
Light Spectrometer Wavelength
Spectrum Analyzer Spectroscope
Free · In‑App Purchases
This app gives you the possibility to easily measure the dominant wavelength of light. It's perfect for measuring the wavelength of colored LEDs, for instance.
Measures light spectrum to determine the dominant wavelength in nm, frequency in THz and period length in fs.
DOMINANT WAVELENGTH
Dominant wavelength is a concept commonly used in the field of color science and perception. It refers to the wavelength of light that appears most prominent or dominant in a given color mixture or light source. In other words, it is the wavelength that our eyes perceive as the primary color in a mixture of different wavelengths. For light with only one wavelength, such as the light from a colored LED, the dominant wavelength corresponds to the wavelength of that light.
KEY FEATURES
• High accuracy
• Real-time measurement
• Measures light wavelength in nanometers (nm)
• Measures light frequency in terahertz (Thz)
• Measures light period length in femtoseconds (fs)
• Easy to use
• Supports 40 languages, including english
• Optional calibration for enhanced precision
MEASURING
1. Find a white surface, such as a plain piece of white paper
2. Point your camera at the surface illuminated by your target light source
3. The app gives you accurate measurements in real-time
LIMITATIONS
Smartphone cameras have limitations when it comes to distinguishing between different very short, or very long wavelengths. More specifically, on many devices the accuracy below 465 nm and above 610 nm is very limited. This is due to the physical camera sensors in the devices. An automatic warning appears on the screen for these short and long wavelengths.
WHITE LIGHT
Note that is not meaningful to measure the dominant wavelength of white light as white light consists of a wide range of wavelengths, with no wavelength dominating. This app is made for measuring colored light. If you are interested in determining the color temperature of white light, please instead use our popular White Balance Kelvin Meter app.
COLOR OF SURFACES
If you want to measure the color of a surface or material, rather than of light, please instead use our popular Colorimeter Camera Color Meter app.
Privacy Policy, https://spectrometer.contechity.com/pp.html
End User License Agreement, https://spectrometer.contechity.com/eula.html
CONTACT
I value your feedback. Email me at apps@contechity.com with any suggestions or questions.
Download the Spectrometer now!
• Added the possibility to save measurements with comments
• Corrected erroneous period length calculation
• Improved text and images explaining the app
The developer, Contechity AB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Contechity AB
- Size
- 25.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
English and 39 more
- English, Afrikaans, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Filipino, Finnish, French, German, Greek, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full access $0.99
- Full access $6.99
- Full access $1.99
- Full access $4.99
- Full access $4.99
- Full access $3.99
- Copyright
- © 2023 Contechity