Raking light: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| (4 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
== Description == | == Description == | ||
An topographic examination technique that uses visible light directed at a low angle to the surface of an object, paper, or painting. Raking light emphasizes the conformation of a surface by creating contrast between high and low relief areas. [ | An topographic examination technique that uses visible light directed at a low angle to the surface of an object, paper, or painting. Raking light emphasizes the conformation of a surface by creating contrast between high and low relief areas. [[Crack|Cracks]], [[blister|blisters]], pits, tears, scratches, cockles and other types of damages or distortions are revealed. Multiple raking light images are usually obtained during an examination with each using light angled from a different direction. | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
schiefes Licht (Deut.); | schiefes Licht (Deut.); schräge Beleuchtung (Deut.); lumière rasante (Fr.); luz rasante (Port.) | ||
== | ==Resources and Citations== | ||
* | * Nathan Stolow, 'Examination modes of lighting' | ||
* AMOL reCollections Glossary -http://amol.org.au/recollections/7/r/htm | |||
* | * David Bomford, Jo Kirby, John Leighton, Ashok Roy, ''Art in the Making: Impressionism'', National Gallery, London, 1990 | ||
* Janet Burnett Grossman, ''Looking at Greek and Roman Sculpture in Stone'', J. Paul Getty Trust, Los Angeles, 2003 | |||
* | |||
* | |||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 12:08, 2 July 2025
Description
An topographic examination technique that uses visible light directed at a low angle to the surface of an object, paper, or painting. Raking light emphasizes the conformation of a surface by creating contrast between high and low relief areas. Cracks, blisters, pits, tears, scratches, cockles and other types of damages or distortions are revealed. Multiple raking light images are usually obtained during an examination with each using light angled from a different direction.
Synonyms and Related Terms
schiefes Licht (Deut.); schräge Beleuchtung (Deut.); lumière rasante (Fr.); luz rasante (Port.)
Resources and Citations
- Nathan Stolow, 'Examination modes of lighting'
- AMOL reCollections Glossary -http://amol.org.au/recollections/7/r/htm
- David Bomford, Jo Kirby, John Leighton, Ashok Roy, Art in the Making: Impressionism, National Gallery, London, 1990
- Janet Burnett Grossman, Looking at Greek and Roman Sculpture in Stone, J. Paul Getty Trust, Los Angeles, 2003