Optical: systems and elements – Diffraction – From zone plate
Patent
1996-02-20
1998-02-03
Henry, Jon W.
Optical: systems and elements
Diffraction
From zone plate
359570, 359743, 359744, G02B 2744, G02B 308, G02B 1304
Patent
active
057150907
ABSTRACT:
A viewfinder having an optical axis and comprising a negative lens component including a lens element having a first diffractive surface which introduces a phase modification .phi.(r) into a light wavefront passing through this diffractive surface and a positive lens component receiving phase modified light from the negative power lens component.
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"Lens Design Fundamentals," Rudolf Kingslake, pp. 343-345.
"Lenses in Photography," The Practical Guide to Optics for Photographers, by Rudolf Kingslake, pp. 254-257.
"Applied Photographic Optics," Imaging Systems for Photography, Film and Video, by Sidney F. Ray, pp. 370-382.
Eastman Kodak Company
Henry Jon W.
Short Svetlana Z.
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