Light Spectrometer Wavelength vs Smartees Tools

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 • Save measurements with notes • 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!

Smartees Tools is a pocket toolbox of fast, private utilities that run entirely on your device. No accounts, no uploads, no tracking — open a tool and get it done, even offline. INCLUDED TOOLS • QR Code Generator — create custom QR codes for links, Wi-Fi and text, then save or share as PNG or SVG. • Image Converter — convert between PNG, JPG, WebP and more, right on your phone. • Image Compressor — shrink photos to a smaller size without the cloud, keeping quality high. • JSON Formatter — beautify, minify and validate JSON, and catch errors instantly. • Test Data Generator — generate realistic sample data (names, emails, IDs and more) for testing. • Resume Builder — build a clean resume with a live preview and export a polished PDF, with three designer templates. • Speed Test — check your connection speed in seconds. WHY SMARTEES TOOLS • Private by design — everything happens on your device; your files never leave it. • Works offline — most tools need no connection at all. • No sign-up, no watermarks, no ads in your way. • Share or save results straight to Files and other apps. A genuinely useful set of everyday tools for developers, makers and anyone who needs to get something done quickly.