| 摘要 |
Provided is an optical film that reduces total solar transmittance whilst attenuating the reduction in the transmittance of visible light. The optical film for laminated glass, is characterized in that the ratio of the arithmetic mean of the extinction coefficient of wavelengths in the range of 450-600nm to the arithmetic mean of the extinction coefficient of wavelengths in the range of 650-780nm is greater than or equal to 7. |
