Chromatic aberration correcting element and its application

Optical: systems and elements – Diffraction – From zone plate

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359570, 359743, 359708, G02B 2742, G02B 308

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058837442

ABSTRACT:
A chromatic aberration correcting element that is a simple lens having at least one aspheric surface, the radius of curvature of which increases from the optical axis toward the periphery. At least one of the surfaces is formed as a diffraction lens surface that consists of annular segments that shift discretely in a direction in which the lens thickness increases as a function of the distance from the optical axis. Also disclosed is a chromatic aberration correcting device having annular segments formed in steps on either a light entrance face or a light exit face or both. The annular segments are composed of planes perpendicular to and concentric with the optical axis.

REFERENCES:
patent: 4932763 (1990-06-01), Matsuoka
patent: 4936665 (1990-06-01), Whitney
patent: 4973832 (1990-11-01), Marchant et al.
patent: 4995715 (1991-02-01), Cohen
patent: 5078513 (1992-01-01), Spaulding et al.
patent: 5116111 (1992-05-01), Simpson et al.
patent: 5129718 (1992-07-01), Futhey et al.
patent: 5148314 (1992-09-01), Chen
patent: 5152788 (1992-10-01), Isaacson et al.
patent: 5153778 (1992-10-01), Sasian-Alvarado
patent: 5161040 (1992-11-01), Yokoyama et al.
patent: 5173809 (1992-12-01), Iwaki et al.
patent: 5227915 (1993-07-01), Gossinger et al.
patent: 5257133 (1993-10-01), Chen
patent: 5260828 (1993-11-01), Londono et al.
patent: 5299062 (1994-03-01), Ogata
patent: 5349471 (1994-09-01), Morris et al.
William H. Southwell, "Binary Optics from a Raytracing Point of View", Int'l Lens Design Conference, SPIE, vol. 1354 (1990) pp. 38-42.
Applied Optics / vol.27, No.14 / Jul. 15, 1988--"Hybrid diffractive-refractive lenses and achromats" by: Thomas Stone and Nicholas George. pp. 2960-2971.
Applied Optics / vol.32, No. 1 / Jan. 1, 1993--"Staircase lens: a binary and diffractive field curvatue corrector"-by: Jose M. Sasian and Russell A. Chipman. pp. 60-66.
Applied Optics / vol.31, No. 13 / May 1, 1992--"Ray tracing kinoform lens surfaces" by: William H. Southwell. pp. 2244-2247.
English translation of Japanese document entitled Uncoventional Lens for Image Forming Hybrid Achromatic Lens Using Binary Optical Elements, Nobuo Nishda, Opt. Elect. Laboratory, NEC.
SPIE / vol. 1354, Int'l Lens Design Conf. 1990--"The design of achromatized hybrid diffractive lens systems" by: Carmina Londono & Peter P. Clark. pp. 30-37.
Applied Optics / vol.31, No. 13 / May 1, 1992--"Modeling diffraction efficiency effects when designing hybrid diffractive lens systems" by: Carmina Londono and Peter P. Clark. pp.2248-2252.
Applied Optics / vol.31, No.13 / May 1, 1992--"Design of infrared hybrid refractive-diffractive lenses" by: A.P. Wood. pp. 2253-2258.
ISOM / Dec. 1993--"Hybrid Achromatic Objective Lens Design for Optical Data Storage" by: David Kubalak et al. pp. 176-177.

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