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First-order optical analysis of a quasi-microscope for planetary landers / by Friedrich O. Huck, Archibald R. Sinclair, and Ernest E. Burcher.
- Format:
- Book
- Government document
- Author/Creator:
- Huck, Friedrich O., author.
- Sinclair, Archibald R., author.
- Burcher, Ernest E., author.
- Series:
- NASA technical note ; D-7129.
- NASA/TN ; D-7129
- Language:
- English
- Subjects (All):
- Space vehicles--Optical equipment.
- Space vehicles.
- Planets--Exploration--Equipment and supplies.
- Planets.
- Photomicrography.
- microphotography.
- Physical Description:
- 1 online resource (28 pages) : illustrations.
- Place of Publication:
- Washington, D.C. : National Aeronautics and Space Administration, February 1973.
- Summary:
- A first-order geometrical optics analysis of a facsimile camera augmented with an auxiliary lens as magnifier is presented. This concept, called quasi-microscope, bridges the gap between surface resolutions of the order of 1 to 10 mm which can be obtained directly with planetary lander cameras and resolutions of the order of 0.2 to 10 microns which can be obtained only with relatively complex microscopes. A facsimile camera was considered in the analysis; however, the analytical results can also be applied to television and film cameras. It was found that quasi-microscope resolutions in the range from 10 to 100 microns are obtainable with current state-of-the-art lander facsimile cameras. For the Viking lander camera having an angular resolution of 0.04 deg, which was considered as a specific example, the best achievable resolution would be about 20 microns. The preferred approach to increase the resolution of the quasi-microscope would be, if possible, through an increase in angular resolution of the camera. A twofold to threefold improvement in resolution could also be achieved with a special camera focus position, but this approach tends to require larger and heavier auxiliary optics.
- Notes:
- "February 1973."
- Includes bibliographical references (page 16).
- Description based on online resource, PDF version; title from title page (NASA, viewed on July 7, 2021).
- Electronic reproduction. [Place of publication not identified]: HathiTrust Digital Library. 2024.
- OCLC:
- 23677012
- Access Restriction:
- Use copy Restrictions unspecified
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