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References

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  1. D. R. Herriott, J. Opt. Soc. Am. 51, 1142 (1961).
    [CrossRef]
  2. S. Tolansky, Multiple-Beam Interferometry (Clarendon Press, Oxford, England, 1948).
  3. J. B. Saunders, J. Research Natl. Bur. Standards 47, 148 (1951).
    [CrossRef]

1961 (1)

1951 (1)

J. B. Saunders, J. Research Natl. Bur. Standards 47, 148 (1951).
[CrossRef]

Herriott, D. R.

Saunders, J. B.

J. B. Saunders, J. Research Natl. Bur. Standards 47, 148 (1951).
[CrossRef]

Tolansky, S.

S. Tolansky, Multiple-Beam Interferometry (Clarendon Press, Oxford, England, 1948).

J. Opt. Soc. Am. (1)

J. Research Natl. Bur. Standards (1)

J. B. Saunders, J. Research Natl. Bur. Standards 47, 148 (1951).
[CrossRef]

Other (1)

S. Tolansky, Multiple-Beam Interferometry (Clarendon Press, Oxford, England, 1948).

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Figures (1)

Fig. 1
Fig. 1

Schematic diagram showing the arrangement of the various elements for testing flat surfaces in which the fringe interval of the Fizeau fringes is a fraction of half a wavelength of the light used. S—Low pressure mercury arc such as a germicidal lamp; G—5461 Å filter; P—plate with the pinholes; L1—collimating lens; P1, P2—coated optical flats under test; L2—focusing lens; L3—field lens in whose plane the plate P is imaged; F—conjugate plane of P1 and P2 with respect to the lens L3. On this plane the Fizeau fringes could be photographed by placing film.

Equations (6)

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2 t 0 cos θ = n λ .
2 t 0 = n 0 λ .
2 t 0 ( 1 d 2 2 f 2 ) = n λ
( n 0 n ) λ = t 0 d 2 f 2 = t 0 θ 2 .
t 0 θ 2 = λ .
d j = f λ t 0 ( j 1 N ) ,

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