Brighter in the yellow region with lines at 598 (bright doublet), and 616 nm.
More lines appear at:
Blue 467, 475 and 498 nm
Green 515, 546 and 569 nm
Bright violet line. The spectrum has emission lines of mercury as 408, 436, 492 (very faint), 546, 577, 579, 620 nm.
The spectrum has emission lines of mercury as 408, 436, 492 (very faint), 546, 577, 579, 620 nm.
The spectra of this lamps is a continuous rainbow of light without any bright or dark lines.
From some specific locations it is possible to get the spectra of full neiborhoods. If more of one picture is taken at different times it is possible to get a general feeling of the transition into LEDs. This is the case of these pictures taken by Cristobal García at Coslada, Madrid, Spain.
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 824603.