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1 December 1995 Achromatic eyepieces using acrylic diffractive lenses
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A symmetric two element, 10X eyepiece has been designed using a combination of refractive and diffractive surfaces. Each element consists of a diffractive and refractive surface to form a hybrid optic. The symmetry of the design combined with loose manufacturing tolerances provides an extremely cost effective approach to obtaining high-quality imaging. The diffractive surfaces achromatize the design which enables manufacture with a single optical material. During injection molding production of the hybrid element, the measured diffraction efficiency at the edge of the clear aperture ranges between 96 - 98% at the design wavelength of 558 nm. The lateral color, which is a critical aberration to correct in high- performance eyepieces, has been measured for the hybrid design and found to match within 1.2 micrometers of its theoretical value.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. Gary Blough, Michael Hoppe, Douglas R. Hand, and William G. Peck "Achromatic eyepieces using acrylic diffractive lenses", Proc. SPIE 2600, Design, Fabrication, and Applications of Precision Plastic Optics, (1 December 1995);


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