Hemispherical refracting element gives pinhole camera 180 degree field-of-view without compromising its simplicity and depth-of-field. Refracting element, located just behind pinhole, bends light coming in from sides so that it falls within image area of film. In contrast to earlier pinhole cameras that used water or other transparent fluids to widen field, this model is not subject to leakage and is easily loaded and unloaded with film. Moreover, by selecting glass with different indices of refraction, field at film plane can be widened or reduced.
Wide angle pinhole camera
NASA Tech Briefs ; 3 , 2
1978-10-01
Miscellaneous
No indication
English
Improved Gamma-and X-Ray Pinhole Camera
NTRS | 1984
|Wide-Angle, Wide-Band Camera for Remote Imaging
NTRS | 1985
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