* Focused Lec Quiz 3/30 Wk 3 Color Science Selection Flashcards
Steps to color matching a tooth:
Selection of shade in office, duplication of shade in lab
Color is determined by:
light that eters eye reflected from object
Visible light spectrum:
380-750nm
Predominant colors:
red, green, blue
short waelngth
blue
medium wavelenght:
green
Long wavlength:
red
All 3 primary colors -
white
Apples
subtract or absorb, subtractive color is reflected off, pigment subtracts white from the shade
Types of color
1’, 2’ and complimentary
Color perception depends on:
light source, object property, visual perception
Fluourescent light emits:
blue waves
Incandescent light emits:
yellow waves
Light source of dental overhead light:
LED
Color corrected light source temperature
5,500 ‘ K + color rendering index of 90+
of daylight
6,500 ‘ K
Light on an object can:
reflected, absorbed, or
Light on an object can:
reflected, absorbed, or transmitted
Rod cells:
increases in concentration toward the periphery
3 cell types of cones process:
short, medium and long wv’s
To compare one color to the next w accuracy
Mensel: Hue, vlue and chroma (1st to organized all color perceptions)
Hue:
color family
chroma:
color intensity