+21 votes
in Visible Light by
edited by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
+14 votes
by

No, LED (light-emitting diode) light typically does not have a broad spectrum. LED lights produce light by passing an electric current through a semiconductor material, which causes electrons to release energy in the form of photons. The specific properties of the semiconductor material determine the color of light emitted by the LED.

LEDs are available in a range of colors, including red, green, blue, and other specific wavelengths. Each color corresponds to a specific energy level and wavelength of light. For example, red LEDs emit light in the red wavelength range, typically around 620 to 750 nanometers.

While LEDs can be engineered to emit light at different wavelengths, they typically emit light at very specific wavelengths rather than a broad spectrum. This is in contrast to natural light sources like the sun or incandescent bulbs, which emit a broad range of wavelengths, resulting in a more continuous spectrum of colors.

However, it is worth noting that some modern LED technologies, such as "white" LEDs, use a combination of multiple colored LEDs or phosphor coatings to achieve a broader spectrum that resembles natural light. These "white" LEDs often combine blue or ultraviolet LEDs with phosphors that convert part of the blue light into a broader range of wavelengths, including those in the visible spectrum. This allows for a better color rendition compared to LEDs that emit only a narrow range of wavelengths.

Welcome to Physicsgurus Q&A, where you can ask questions and receive answers from other members of the community.
...