Light Spectrometer Wavelength vs SeatChk

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!

Stop wandering the library looking for a seat. SeatChk uses real-time traffic data and student-verified updates so you know exactly how busy your favorite spots are before you even arrive. Whether you’re looking for a quiet floor in the library, an empty squat rack at the gym, or a short line at the dining hall, SeatChk helps you see the crowd BEFORE you go. Key Features: Live Campus Map: See real-time "heat" levels for every major building on campus. Plan Ahead with Historical Trends: View detailed bar charts showing historical busyness for each day at most locations, helping you decide the best time to head out. Crowdsourced Reporting: Contribute to the community by reporting crowd levels when you’re on-site. Verified Accuracy: Our geofencing technology ensures that only people actually at the location can submit reports, keeping the data honest. Earn Points: Get rewarded for your contributions and climb the campus leaderboard. Completely Anonymous: No accounts, no passwords, no tracking. Just hop in and see the seats. Stop wasting your time, know before you go. Find your spot with SeatChk.