Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
optical property
|
| gptkbp:alsoKnownAs |
V-number
|
| gptkbp:appliesTo |
plastics
crystals glasses transparent materials |
| gptkbp:category |
optical constants
|
| gptkbp:form |
V = (n_D - 1) / (n_F - n_C)
|
| gptkbp:hasUnit |
dimensionless
|
| https://www.w3.org/2000/01/rdf-schema#label |
Abbe number
|
| gptkbp:importantFor |
chromatic aberration control
lens design |
| gptkbp:lowerValueMeans |
higher dispersion
|
| gptkbp:n_C |
refractive index at 656.3 nm (C-line)
|
| gptkbp:n_D |
refractive index at 589.3 nm (D-line)
|
| gptkbp:n_F |
refractive index at 486.1 nm (F-line)
|
| gptkbp:namedAfter |
gptkb:Ernst_Abbe
|
| gptkbp:range |
20 to 85 for optical glasses
|
| gptkbp:usedIn |
gptkb:optics
|
| gptkbp:usedToCharacterize |
dispersion of optical materials
|
| gptkbp:valuation |
lower dispersion
|
| gptkbp:bfsParent |
gptkb:Ernst_Abbe
|
| gptkbp:bfsLayer |
5
|