Abstract

A spectroradiometer system is described which is designed to make measurements of the spectral energy distribution of light sources over the 0.25–2.5-μ wavelength range. A review is presented of some of the major experimental problems encountered in radiometry, in conjunction with the approach employed here to meet these problems. A single beam optical arrangement is used, with the photodetector signal being integrated over successive wavelength intervals and recorded in digital form. A digital computer then performs all subsequent data processing, including plotting of the final spectra. A brief functional description of the computer programs is presented, and the accuracy and reproducibility of the system are discussed.

© 1970 Optical Society of America

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References

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  1. S. L. Parsons, A. E. Martin, S. N. Roberto, Trans. Amer. Electrochem. Soc. 97, 41 (1950).
    [Crossref]
  2. R. Stair, W. E. Schneider, J. K. Jackson, Appl. Opt. 2, 1151 (1963).
    [Crossref]
  3. D. L. MacAdam, J. Opt. Soc. Amer. 48, 832 (1958).
    [Crossref]
  4. F. Grum, Appl. Opt. 2, 237 (1963).
    [Crossref]
  5. R. L. Brown, Trans. Amer. Illum. Eng. Soc. 61, 230 (1966).
  6. H. K. Hammond, W. L. Holford, M. L. Kuder, J. Res. Nat. Bur. Stand. (U.S.) 64C, 151 (1960).
  7. W. J. Brown, Appl. Opt. 1, 227 (1962).
    [Crossref]
  8. H. W. Bodman, R. Jantzen, Lichttechnik 16, 20 (1964).
  9. L. Thorington, J. Parascandola, G. Schiazzano, Trans. Amer. Illum. Eng. Soc. 60, 227 (1965).
  10. C. L. Sanders, W. Gaw, Appl. Opt. 6, 1639 (1967).
    [Crossref] [PubMed]
  11. W. E. Schneider, R. Stair, J. K. Jackson, Appl. Opt. 6, 1479 (1967).
    [Crossref] [PubMed]
  12. W. A. Thorton, Trans. Amer. Electrochem. Soc. 116, 286 (1969).
    [Crossref]
  13. F. Grum, G. W. Luckey, Appl. Opt. 1, 2289 (1968).
    [Crossref]
  14. C. W. Jerome, J. E. Eby, Trans. Amer. Illum. Eng. Soc. 64, 590 (1969).
  15. A. Savitzky, M. J. E. Golay, Anal. Chem. 36, 1627 (1964).
    [Crossref]
  16. H. J. Keegan, J. C. Schleter, D. B. Judd, J. Res. Nat. Bur. Stand. (U.S.) 66A, 203 (1962).
    [Crossref]

1969 (2)

W. A. Thorton, Trans. Amer. Electrochem. Soc. 116, 286 (1969).
[Crossref]

C. W. Jerome, J. E. Eby, Trans. Amer. Illum. Eng. Soc. 64, 590 (1969).

1968 (1)

F. Grum, G. W. Luckey, Appl. Opt. 1, 2289 (1968).
[Crossref]

1967 (2)

1966 (1)

R. L. Brown, Trans. Amer. Illum. Eng. Soc. 61, 230 (1966).

1965 (1)

L. Thorington, J. Parascandola, G. Schiazzano, Trans. Amer. Illum. Eng. Soc. 60, 227 (1965).

1964 (2)

A. Savitzky, M. J. E. Golay, Anal. Chem. 36, 1627 (1964).
[Crossref]

H. W. Bodman, R. Jantzen, Lichttechnik 16, 20 (1964).

1963 (2)

1962 (2)

W. J. Brown, Appl. Opt. 1, 227 (1962).
[Crossref]

H. J. Keegan, J. C. Schleter, D. B. Judd, J. Res. Nat. Bur. Stand. (U.S.) 66A, 203 (1962).
[Crossref]

1960 (1)

H. K. Hammond, W. L. Holford, M. L. Kuder, J. Res. Nat. Bur. Stand. (U.S.) 64C, 151 (1960).

1958 (1)

D. L. MacAdam, J. Opt. Soc. Amer. 48, 832 (1958).
[Crossref]

1950 (1)

S. L. Parsons, A. E. Martin, S. N. Roberto, Trans. Amer. Electrochem. Soc. 97, 41 (1950).
[Crossref]

Bodman, H. W.

H. W. Bodman, R. Jantzen, Lichttechnik 16, 20 (1964).

Brown, R. L.

R. L. Brown, Trans. Amer. Illum. Eng. Soc. 61, 230 (1966).

Brown, W. J.

Eby, J. E.

C. W. Jerome, J. E. Eby, Trans. Amer. Illum. Eng. Soc. 64, 590 (1969).

Gaw, W.

Golay, M. J. E.

A. Savitzky, M. J. E. Golay, Anal. Chem. 36, 1627 (1964).
[Crossref]

Grum, F.

F. Grum, G. W. Luckey, Appl. Opt. 1, 2289 (1968).
[Crossref]

F. Grum, Appl. Opt. 2, 237 (1963).
[Crossref]

Hammond, H. K.

H. K. Hammond, W. L. Holford, M. L. Kuder, J. Res. Nat. Bur. Stand. (U.S.) 64C, 151 (1960).

Holford, W. L.

H. K. Hammond, W. L. Holford, M. L. Kuder, J. Res. Nat. Bur. Stand. (U.S.) 64C, 151 (1960).

Jackson, J. K.

Jantzen, R.

H. W. Bodman, R. Jantzen, Lichttechnik 16, 20 (1964).

Jerome, C. W.

C. W. Jerome, J. E. Eby, Trans. Amer. Illum. Eng. Soc. 64, 590 (1969).

Judd, D. B.

H. J. Keegan, J. C. Schleter, D. B. Judd, J. Res. Nat. Bur. Stand. (U.S.) 66A, 203 (1962).
[Crossref]

Keegan, H. J.

H. J. Keegan, J. C. Schleter, D. B. Judd, J. Res. Nat. Bur. Stand. (U.S.) 66A, 203 (1962).
[Crossref]

Kuder, M. L.

H. K. Hammond, W. L. Holford, M. L. Kuder, J. Res. Nat. Bur. Stand. (U.S.) 64C, 151 (1960).

Luckey, G. W.

F. Grum, G. W. Luckey, Appl. Opt. 1, 2289 (1968).
[Crossref]

MacAdam, D. L.

D. L. MacAdam, J. Opt. Soc. Amer. 48, 832 (1958).
[Crossref]

Martin, A. E.

S. L. Parsons, A. E. Martin, S. N. Roberto, Trans. Amer. Electrochem. Soc. 97, 41 (1950).
[Crossref]

Parascandola, J.

L. Thorington, J. Parascandola, G. Schiazzano, Trans. Amer. Illum. Eng. Soc. 60, 227 (1965).

Parsons, S. L.

S. L. Parsons, A. E. Martin, S. N. Roberto, Trans. Amer. Electrochem. Soc. 97, 41 (1950).
[Crossref]

Roberto, S. N.

S. L. Parsons, A. E. Martin, S. N. Roberto, Trans. Amer. Electrochem. Soc. 97, 41 (1950).
[Crossref]

Sanders, C. L.

Savitzky, A.

A. Savitzky, M. J. E. Golay, Anal. Chem. 36, 1627 (1964).
[Crossref]

Schiazzano, G.

L. Thorington, J. Parascandola, G. Schiazzano, Trans. Amer. Illum. Eng. Soc. 60, 227 (1965).

Schleter, J. C.

H. J. Keegan, J. C. Schleter, D. B. Judd, J. Res. Nat. Bur. Stand. (U.S.) 66A, 203 (1962).
[Crossref]

Schneider, W. E.

Stair, R.

Thorington, L.

L. Thorington, J. Parascandola, G. Schiazzano, Trans. Amer. Illum. Eng. Soc. 60, 227 (1965).

Thorton, W. A.

W. A. Thorton, Trans. Amer. Electrochem. Soc. 116, 286 (1969).
[Crossref]

Anal. Chem. (1)

A. Savitzky, M. J. E. Golay, Anal. Chem. 36, 1627 (1964).
[Crossref]

Appl. Opt. (6)

J. Opt. Soc. Amer. (1)

D. L. MacAdam, J. Opt. Soc. Amer. 48, 832 (1958).
[Crossref]

J. Res. Nat. Bur. Stand. (U.S.) (2)

H. K. Hammond, W. L. Holford, M. L. Kuder, J. Res. Nat. Bur. Stand. (U.S.) 64C, 151 (1960).

H. J. Keegan, J. C. Schleter, D. B. Judd, J. Res. Nat. Bur. Stand. (U.S.) 66A, 203 (1962).
[Crossref]

Lichttechnik (1)

H. W. Bodman, R. Jantzen, Lichttechnik 16, 20 (1964).

Trans. Amer. Electrochem. Soc. (2)

S. L. Parsons, A. E. Martin, S. N. Roberto, Trans. Amer. Electrochem. Soc. 97, 41 (1950).
[Crossref]

W. A. Thorton, Trans. Amer. Electrochem. Soc. 116, 286 (1969).
[Crossref]

Trans. Amer. Illum. Eng. Soc. (3)

C. W. Jerome, J. E. Eby, Trans. Amer. Illum. Eng. Soc. 64, 590 (1969).

L. Thorington, J. Parascandola, G. Schiazzano, Trans. Amer. Illum. Eng. Soc. 60, 227 (1965).

R. L. Brown, Trans. Amer. Illum. Eng. Soc. 61, 230 (1966).

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Figures (6)

Fig. 1
Fig. 1

Schematic diagram of experimental equipment.

Fig. 2
Fig. 2

Schematic diagram of digital data encoding system

Fig. 3
Fig. 3

Plot of change in spectral sensitivity of the system over a typical four-week period, normalized at 550 nm.

Fig. 4
Fig. 4

Spectral energy distribution of a cool white fluorescent lamp.

Fig. 5
Fig. 5

Spectral energy distribution of a metal halide arc lamp.

Fig. 6
Fig. 6

Spectral energy distribution of an incandescent lamp.

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