When we talk about light and color, terms like Hue, Saturation, and Brightness frequently come up, but many of us struggle to explain them or grasp their significance. In this article, we aim to demystify these terms, explain why they matter, and show you how to measure them.
Metamerism is when two materials show the same color under one light but display different colors under another.
Picture this: you’re at the grocery store, eyeing the chicken fillets on the shelf. The meat looks fresh and pink, but when you place it in your cart, something strange happens—the color transforms into a more yellowish, bland hue. Intrigued, I decided to investigate.
Greenhouse and horticultural professionals encounter various terms related to light measurement. This article discusses PAR, PPF, PPFD, and PFD. These terms have been used interchangeably in literature and can confuse. We want to clear this up once and for all.
Cosine Correction is a term often encountered when working with light meters. In this article, we aim to explain this term by addressing everything you wanted to know about Cosine Correction.
Introduction - Clinical Lighting and Cyanosis Inadequate lighting in medical settings can impede a vital visual diagnosis of the skin, called Cyanosis. So in this article we will discuss a crucial...
What is TLA or Temporal Lighting Artifacts? They are mostly visual abnormalities or anomalies caused by pulsating or flickering lights. Most times it’s hardly noticeable but it can have annoying side effects and even cause catastrophic events. Here we talk about the three well-discussed TLA situations
TM-30-15 is a color rendering index system published by IES (Illuminating Engineering Society). A color rendering index system indicates how well a light, when shining on objects, can reproduce the object’s color accurately (compared to a black body radiator – e.g., the sun). TM-30-15 is next in a line of predecessor CRI systems (CIE CRI, GAI, CQS), each intended to improve on previous designs. In this article, we explain TM-30-15, its advantages, and why it’s important.
What is CRI (Color Rendering Index)? It is a metric used to measure the ability of a light to bring out colors in objects (i.e. Color Rendering). Lights with a high CRI rating can make store products look brilliant and vibrant. Other lights with low CRI ratings will make the same products drab and lifeless.
What You Need to Know About Cinema Lighting Metrics: TLCI, SSI, and TLMF? They are three metrics used in cinematography to measure a light’s ability to bring out colors (color rendering).
Handbook Series
Everything thing you need to know about Flicker, an insidious, potentially serious lighting artifact impacting visual safety for public places like hospitals, offices, libraries, and more...
About UPRtek
UPRtek (est. 2010) is a manufacturer of portable, high-precision light measurement instruments; Handheld Spectrometers, PAR meters, Spectroradiometers, Light Calibration Solutions.
UPRtek HQ, R&D and manufacturing are all based out of Taiwan, with Worldwide representation through our certified Global Resellers.
Latest Articles
Category