Method and system for designing color corrected optical systems

Details Method and system for designing color corrected optical systems Method and system for designing color corrected optical systems

1994-06-03

1996-06-11

Epps, Georgia Y.

Optical: systems and elements

Lens

364525, G02B 300

Patent

active

055261850

ABSTRACT:
The present invention provides a general system and method for designing arbitrary lens systems with reduced chromatic aberration without the reliance on rigorous trial and error methods and/or approximations. The system and method selects optical materials for a color corrected optical system by generating both axial color terms and lateral color terms for a predetermined lens system. From the generated color terms, a plurality of glass terms are calculated from a plurality or linear algebraic formulas generated by a multiplication of two matrices using the generated axial and lateral color terms as coefficient values of one of the matrices or other computational method. From the calculations, the particular optical materials and the predetermined lens design for a color corrected optical system are identified. This information can be used to facilitate the manufacturing of a lens system. The present invention can also take into account the use of diffractive optical elements.

REFERENCES:
patent: 5148314 (1992-09-01), Chen
Robert D. Sigler; "Glass Selection for Airspaced Apochromats Using the Buchdahl Dispersion Equation"; Dec., 1986; pp. 4311-4320.
Max Herzberger and Nancy R. McClure; "The Design of Superachromatic Lenses"; Jun., 1963; pp. 553-560.
Dale A. Buralli and John R. Rogers; "Some Fundamental Limitations of Achromatic Holographic Systems"; 1989; pp. 1863-1868.
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C. G. Wynne; "A Comprehensive First-Order Theory of Chromatic Aberration Secondary Spectrum Correction Without Special Glasses"; 1978; pp. 627-636.
G. W. Forbes; "Chromatic Coordinates in Aberration Theory"; Apr. 4, 1984; pp. 344-349.
Thomas Stone and Nicholas George; "Hybrid Diffractive-Refractive Lenses and Achromats"; Jul. 15, 1984; pp. 2960-2971.
William C. Sweatt; "Describing Holographic Optical Elements as Lenses"; Jun. 6, 1977; pp. 803-808.
Donald C. O'Shea; "The Monochromatic Quartet: A Search for the Global Optimum"; 1990; pp. 548-554.

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