|
KMID : 1011420180230010065
|
|
Journal of Korean Ophthalmic Optics Society
2018 Volume.23 No. 1 p.65 ~ p.72
|
|
|
Analysis of Blue Light in Automotive Lamps for Night Vision Driver Lens Development
|
|
Choi Eun-Jung
|
|
|
Abstract
|
|
|
Purpose: The distributions of blue light for various automotive lamps were analyzed to determine the criteria for the design of blue light blocking required to develop a night vision driver lens.
Methods: A total of 24 automotive lamps were investigated, including HAL lamps, HID lamps and LED lamps. The spectral distributions were measured using a spectral irradiance colorimeter and the blue light distributions for each lamp were obtained by weighting the blue light hazard function. The peak wavelength and the line width for each lamp were derived by fitting the blue light distribution with a Gaussian distribution.
Results: The blue light distributions for all automotive lamps were well fitted with a Gaussian function. The weighted average (수식은 본문참조) of the peak wavelength and the line width of the blue light distribution reflecting the blue light ratio PB was (452 nm, 63 nm) in the HAL lamps (441 nm, 65 nm), in the HID lamps (445 nm, 23 nm), in the LED lamps, and (444 nm, 44 nm) in all 24 automotive lamps.
Conclusions: In order to effectively block the blue light emitted from the various automotive lamps, the criteria of the blue light blocking design of night vision driver glasses is required with a Gaussian distribution having a peak wavelength of 444 nm and a line width of 44 nm. The criteria for blue light blocking design between night vision driver lenses and blue light blocking lenses are the same in distribution and there is no significant difference in peak wavelength, but there is a big difference in line width.
|
|
|
KEYWORD
|
|
|
Night vision driver lens, Blue light blocking lens, Automotive lamp, Blue light hazard, Visibility
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|