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References

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  1. I. Glatt, A. Livnat, O. Kafri, D. F. Heller, “Autocollimator Based on Moire Deflectometry,” Appl. Opt. 23, 2673 (1984)
    [CrossRef] [PubMed]
  2. O. Kafri, I. Glatt, “High Sensitivity Reflection–Transmission Moire Deflectometer,” Appl. Opt. 27, 351 (1988).
    [CrossRef] [PubMed]
  3. O. Kafri, K. Kreske, “A Single Instrument Capable of Operating as a Moire Deflectometer Fizeau Interferometer, and Schlieren Device,” Appl. Opt. in press.

1988 (1)

1984 (1)

Appl. Opt. (2)

Other (1)

O. Kafri, K. Kreske, “A Single Instrument Capable of Operating as a Moire Deflectometer Fizeau Interferometer, and Schlieren Device,” Appl. Opt. in press.

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Figures (2)

Fig. 1
Fig. 1

Wedge angle determination where α is the wedge angle and n is the refractive index. (a) In the interferometric setup the two reflected beams have an angle ϕ between them. (b) In the deflectometric setup the ray is deflected at an angle (n − 1)α.

Fig. 2
Fig. 2

Telescopic setup where G1 and G2 are the gratings of the deflectometer, and L1 and L2 are the two collimating lenses.

Equations (8)

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n sin 2 α = sin ϕ ,
N = 2 a n α λ .
α = p N 2 d ( n - 1 ) ,
n = ( 1 - a N p λ N d ) - 1 .
n = ( 1 - a N p λ N d 1 2 M ) - 1 .
δ n = n 2 a p λ d 2 M ( δ N N + N δ N N 2 ) .
δ n n = ( n - 1 ) ( δ N N + δ N N ) .
δ α = δ α Interferometry + δ α Deflectometry *

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