Quantitative analysis of white light fringes in differential interference microscope

1996 ◽  
Author(s):  
S. Toyooka
Keyword(s):  
Quantitative Analysis ◽  
White Light ◽  
Interference Microscope ◽  
Differential Interference Microscope

Comparative and quantitative analysis of white light-emitting diodes and other lamps used for home illumination

2015 ◽  
Vol 54 (1) ◽  
pp. 014104 ◽  
Author(s):  
Rero Marques Rubinger ◽  
Edna Raimunda da Silva ◽  
Daniel Zaroni Pinto ◽  
Carla Patrícia Lacerda Rubinger ◽  
Adhimar Flávio Oliveira ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
White Light Emitting Diodes

scholarly journals Absolute Thickness Imaging of PMMA Layer on Corrugated Transparent Substrate by Scanning White Light Interference Microscope

2006 ◽  
Vol 12 (S02) ◽  
pp. 1774-1775 ◽  
Author(s):  
M Jobin ◽  
R Foschia
Keyword(s):  
White Light ◽  
Interference Microscope ◽  
Pmma Layer ◽  
Transparent Substrate ◽  
Light Interference ◽  
White Light Interference

Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3, 2006

Quantitative Analysis of Acquisition of a Conditional Discrimination

1975 ◽  
Vol 37 (1) ◽  
pp. 211-216
Author(s):  
James M. Wagner ◽  
H. Keith Rodewald
Keyword(s):  
Quantitative Analysis ◽  
White Light ◽  
Conditional Discrimination ◽  
Statistical Tests ◽  
Good Congruence

When the center one of three keys was illuminated with one of six stimuli, 40 pecks produced white light on both side keys. Three of the six stimuli set the conditions for reinforcement of a subsequent single peck on the left key, and three occasioned reinforcement for a right-key response. Three pigeons reached a criterion of 18 correct side-key responses in the last 20 presentations of each of the six stimuli. Prior to criterion, responding was stable and near chance levels; immediately thereafter, accuracy rose to 90% correct choices. Results of several statistical tests and good congruence with predictions of Bower's (1961) model suggested acquisition in an all-or-none manner and confirmed Rodewald's (1973) results.

scholarly journals Rotating Snakes Illusion—Quantitative Analysis Reveals a Region in Luminance Space With Opposite Illusory Rotation

i-Perception ◽  
2017 ◽  
Vol 8 (1) ◽  
pp. 204166951769177 ◽  
Author(s):  
Lea Atala-Gérard ◽  
Michael Bach
Keyword(s):  
Quantitative Analysis ◽  
Opposite Direction ◽  
White Light ◽  
Rotation Speed ◽  
Quantitative Measurements

The Rotating Snakes Illusion employs patterns with repetitive asymmetric luminance steps forming a “snake wheel.” In the underlying luminance sequence {black, dark grey, white, light grey}, coded as {0, g1, 100, g2}, we varied g1 and g2 and measured illusion strength via nulling: Saccades were performed next to a “snake wheel” that rotated physically; observers adjusted rotation until a stationary percept obtained. Observers performed the perceptual nulling of the seeming rotation reliably. Typical settings for (g1, g2), measured from images by Kitaoka, are around (20%, 60%). Indeed, we found a marked illusion in the region (g1≈{0%–25%}, g2≈{20%–75%}) with a rotation speed of ≈1°/s. Surprisingly, we detected a second “island” around (70%, 95%) with opposite direction of the illusory rotation and weaker illusion. Our quantitative measurements of illusion strength confirmed the optimal luminance choices of the standard snake wheel and, unexpectedly, revealed an opposite rotation illusion.

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