|
KMID : 1159320170190040375
|
|
Korean Journal of Vision Science
2017 Volume.19 No. 4 p.375 ~ p.384
|
|
|
Analysis of Optical Performance in Blue Light Blocking Lenses
|
|
Lee Hang-Seok
Lee Ki-Seok
Mah Ki-Choong
|
|
|
Abstract
|
|
|
Purpose: To analyze the optical performance of the blue light blocking lens and the influence on the display color and the clarity.
Methods: The blue light transmittance of 16 blue light blocking lenses having luminous transmittance more than 80% were measured by spectrophotometer, and the influence of the blue light blocking lens on the color accuracy and the clarity in LED display at different luminance levels (20 nit, 110 nit and 400 nit) were measured by equipment for the camera image quality evaluation.
Results: The blue light blocking lens showed the difference in the optical performance depending on the manufacturing method. The coated lenses (n=8) showed higher luminous transmittance and blue light transmittance than the tinted lenses (n=8), and it showed the significant difference in the luminous transmittance (p<0.05). The luminous transmittance and blue light transmittance of coated lens showed significant positive correlation (r=0.714), but the tinted lens did not show the significant correlation between the luminous transmittance and the blue light transmittance. The luminous transmittance and the blue light transmittance of the blue light blocking lenses (n=16) was showed significant positive correlation (r=0.433), and both the luminous transmittance and the blue light transmittance did not show the significant correlation with the changes in the color accuracy and the clarity. The color accuracy and the clarity by the blue light blocking lens was increased at high luminance (400 nit), but it was decreased at low luminance (20 nit and 110 nit).
Conclusion: The difference in the optical characteristics based on manufacturing method was investigated, and that the influence on the color accuracy and the clarity was investigated according to the luminance level of LED display. Therefore, the results of this study were considered to suggest the basic data for the performance of blue light blocking lens.
|
|
|
KEYWORD
|
|
|
Blue light blocking lens, Luminous transmittance, Blue light transmittance, Color accuracy, Clarity
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|