Calculating of the heat dissipation of a LED - Physics Forums
Jun 1, 2022 · The discussion revolves around calculating the heat dissipation of a specific LED model, focusing on its luminous efficacy and the implications for thermal management in a large floodlight …
How many LED's are in a typical LED monitor? - Physics Forums
May 19, 2010 · Questions arise regarding how colors are produced in LED monitors, with a participant explaining the use of colored filters and LCD shutters in individual pixels. Further inquiries are made …
Observing Emission Spectra from Computer Screens - Physics Forums
Dec 4, 2021 · This discussion focuses on the observation of emission spectra from computer screens using a DIY spectroscope. It confirms that LED screens emit light through narrow bands, while TFT …
How to change the color of an LED? - Physics Forums
Nov 7, 2018 · The discussion revolves around the feasibility of changing the color of an LED in a specific device from blue to green. Participants explore various methods, including using colored bulb covers …
How Do Optical Mice Detect Movement? - Physics Forums
Jan 18, 2006 · Laser-based optical mice offer enhanced surface detail detection compared to traditional LED mice, allowing for broader usability across various surfaces. This process occurs rapidly, …
Strange glow from TV that is off. - Physics Forums
Jul 9, 2004 · If they do, then the glow you noticed on them, and on your TV also (assuming it isn't an flat-screen LCD or plasma display) is due to phosphorescence. The light bulbs probably are glowing due …
My TV Cracks: Is It Heat or Discharge? - Physics Forums
Mar 11, 2016 · When you say flat screen, it doesn't mean much. Do you mean LCD, or Plasma, or flat face CRT. If it is LCD, is it LED backlight, or CCFL. (CCFL is high voltage) CRT based systems will …
Collimating image from an LCD display • Physics Forums
Sep 10, 2016 · The discussion revolves around the challenges of collimating an image from an LCD display for use in a head-up display (HUD). Participants explore various methods and configurations …
Is This....Right? Splitting LED colors is not working for me
Apr 2, 2025 · Google suggests why your prism might not be working and what you can do: 1. Light Source: Bright Sunlight: Prisms work by splitting white light into its component colors (the rainbow). …
Detecting Current Flow in a Circuit with LEDs • Physics Forums
Apr 28, 2016 · Another participant suggests measuring the output voltage of op amps and displaying it on a screen as a way to visualize current levels. Some participants mention the possibility of using …