Lighting Metrics Articles

What Is an Imaging Colorimeter? Applications & Features

What Is an Imaging Colorimeter? Applications & Features

Among the essential tools for successful cultivation is the cannabis grow light, which replicates sunlight and provides plants with the light spectrum and intensity they need to thrive.Selecting the best grow light for cannabis is critical, as it directly affects plant growth, yield, potency, and quality.

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Hue, Saturation, Brightness and Spectrometers

Hue, Saturation, Brightness and Spectrometers

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.

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Mystery Chicken: Revealing the Color Rendering Index!

Mystery Chicken: Revealing the Color Rendering Index!

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.

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What is TM-30-15 (TM-30-18), Should I use it? How it Work?

What is TM-30-15 (TM-30-18), Should I use it? How it Work?

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.

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What is CRI (Color Rendering Index)?

What is CRI (Color Rendering Index)?

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.

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What is TLCI, SSI and TLMF?

What is TLCI, SSI and TLMF?

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).

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The Flicker Handbook

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...

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About UPRtek

United Power Research and Technology

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.

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