Abstract: An optical element, in which Stim (ipRGC) represented by Formula 1 is from 10.0 to 68.0. In Formula 1, RID65 (?) is a spectral irradiance of illuminant D65, ? (?) is a spectral transmittance of the optical element, and Smel (?) is a sensitivity function of ipRGCs obtained by converting a sensitivity function of ipRGCs described in CIE S/026E: 2018 such that a maximum sensitivity thereof is identical to a maximum sensitivity of a z bar (?) in CIE 1931 color-matching functions.

Abstract: An optical material satisfies the following (1) to (3) by a transmittance curve in a case in which the optical material is measured at a thickness of 2 mm, and has a* of from ?4 to 1 and b* of from ?1 to 11 as a hue in a CIE 1976 (L*, a*, b*) color space: (1) the transmittance curve has a maximum value T1 of transmittance at a wavelength of from 400 nm to 445 nm of 65% or more; (2) the transmittance curve has a minimum value T2 of transmittance at a wavelength of from 445 nm to 485 nm of 60% to 90%; and (3) a minimum value of transmittance at a wavelength of from 650 nm to 800 nm is 75% or more, and an average value of transmittance at a wavelength of from 650 nm to 800 nm is 80% or more.