Assertion: spodumene's color | /r/HasProperty | presented in cielab color space coordinates
Facets:
Source sentences:
text: In some embodiments, the glass ceramics exhibit a color presented in CIELAB color space coordinates determined from reflectance spectra measurements using a spectrophotometer, with illuminant D65 and specular reflectance excluded, of the following ranges: a*=from about −1 to about +3; b*=from about −7 to about +3; and L*>85.
text: As used herein, the term “substantially white” means that the glass ceramic has a color presented in CIELAB color space coordinates determined from specular reflectance measurements using a spectrophotometer, with illuminant D65 and specular reflectance excluded, including CIE a* in the range from about −2 to about 8; CIE b* in the range from about −7 to about 30; and CIE L* in the range from about 85 to about 100.
text: As used herein, the term “substantially black” means that the glass ceramic has a color presented in CIELAB color space coordinates determined from specular reflectance measurements using a spectrophotometer, with illuminant D65 and specular reflectance excluded, including CIE a* in the range from about −1.0 to about 1.5 (e.g., from about −0.2 to about 1.0); CIE b* in the range from about 3.5 to about 1.5 (e.g., from about −2.5 to about 1.0); and CIE L* in the range from about 0 to about 18 (e.g., from about 0 to about 16 or from about 0 to about 14).