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00:00:00 – 00:11:32
The video demonstrates the use of a CD and a spectrometer to analyze light bulbs for color representation and blue light content. It discusses the presence of blue light in bulbs and how it affects the emitted spectrum. The importance of training one's eyes to detect color differences is emphasized alongside the use of tools like prisms for verification. The speaker recommends the TCP brand bulb for its deeper red spectrum and lower blue light content, suggesting it as a good choice to reduce blue light exposure. Trusting one's eyes is encouraged, with the spectrometer serving as a secondary confirmation tool.
00:00:00
In this segment of the video, Andrew from Gamber Red demonstrates using a common CD as a makeshift spectrometer to identify colors and wavelengths from different light bulbs. He starts by discussing how white light contains all colors of the rainbow, including blue light emitted by LEDs, and how LEDs may have a disproportionate amount of blue light. By refracting light through the CD, he observes the colors of the spectrum, from violet to red. The test confirms that a 4000 Kelvin white light bulb is a full spectrum bulb with good color representation.
00:03:00
In this segment of the video, the speaker demonstrates how to use a spectrometer to analyze the colors emitted by different light bulbs. Two bulbs claiming to be red are compared, revealing that one appears more whitish due to a mix of red, blue, and green light. The importance of training one’s eyes to detect color discrepancies is emphasized, as tools like a prism or reflective surfaces can help verify colors. The goal is to not solely rely on tools but trust one’s eyes, with the spectrometer serving as a secondary validation method.
00:06:00
In this segment of the video, the speaker discusses the presence of blue light in different bulbs. They highlight how the blue light component in bulbs affects the overall spectrum of light emitted. The speaker mentions surprise at finding a trace amount of blue light in a sunlight bulb using a spectrometer and adjusting camera settings to reveal it. They emphasize the need to trust our eyes in identifying blue light and how devices may not always accurately represent what we observe. Additionally, the speaker mentions the TCP brand bulb, which they recommend due to its deeper red light.
00:09:00
In this segment of the video, the speaker compares the blue light emissions of different light bulbs using a spectrometer. They observe that the TCP bulb has no detectable blue light, making it a good choice for those looking to eliminate blue light exposure. The speaker notes that they have been using the TCP bulb as their primary light source for over a year due to its darker red spectrum. They highlight the importance of understanding the light spectrum and recommend the TCP bulb for reducing blue light exposure.