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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 20, Iss. 6 — Jun. 1, 1930
  • pp: 332–340

Optics InfoBase > JOSA > Volume 20 > Issue 6 > PARALLAX PANORAMAGRAMS MADE WITH A LARGE DIAMETER LENS

PARALLAX PANORAMAGRAMS MADE WITH A LARGE DIAMETER LENS

HERBERT E. IVES

JOSA, Vol. 20, Issue 6, pp. 332-340 (1930)
http://dx.doi.org/10.1364/JOSA.20.000332


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Citation
HERBERT E. IVES, "PARALLAX PANORAMAGRAMS MADE WITH A LARGE DIAMETER LENS," J. Opt. Soc. Am. 20, 332-340 (1930)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-20-6-332


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References

  1. Journal Optical Society & R. S. I., 17, 6, p. 435; 1928.
  2. The idea of using a large lens for this purpose, is I find, disclosed in a French patent to Bessiére (#590, 853, 1925). Inasmuch however as Bessiére's procedure would fail to give satisfactory relief pictures, as pointed out below, I have felt warranted in describing in detail my own analysis of the problem which has been experimentally confirmed.
  3. When this is done the relief picture has an exposed film surface, which requires an extra covering glass to prevent injury. The same optical result may be attained while avoiding this inconvenience by inserting the negative plate backward and exposing through the glass. In either of these procedures there is the theoretical objection that a refracting layer is introduced at one stage, not present in the other, whereby the more oblique light beams are distorted. An optically ideal solution is to use a 45° mirror in taking or viewing. (It is indifferent whether this inverts right and left or up and down.) In practice however this inversion may obten be omitted since the mirror image obtained without inverting is usually quite satisfactory.
  4. Bessiére specifies that the viewing grating shall be identical with the taking grating. He also states, erroneously, that it is indifferent whether the viewing grating is used in front of or behind the picture. In a later patent (618, 880, 1927) he corrects this latter statement, but says that when the picture is placed between the grating and the eye, as it must be to give CORRECT RELIEF, THE PICTURE IS INDISTINCT. IN CONSEQUENCE, HE ABANDONS THE LARGE LENS IN FAVOR OF A SERIES OF small lenses each furnished with an inverting prism.

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