Two-glass photographic objective color-corrected at four wavelen

Details Two-glass photographic objective color-corrected at four wavelen Two-glass photographic objective color-corrected at four wavelen

1985-12-02

1987-07-21

Corbin, John K.

350464, G02B 936

Patent

active

046814078

ABSTRACT:
A photographic objective comprising six lens elements is well-corrected for both monochromatic and chromatic aberrations, and is color-corrected at four wavelengths in a band extending from the visible to the near infrared regions of the electromagnetic spectrum with only negligible secondary and high-order spectra at wavelength between those for which color correction is achieved. The design form for the objective has been optimized for a focal length of 200 mm at an aperture ratio of f/4 and a field of view of 12.degree. without vignetting.

REFERENCES:
patent: 3395962 (1968-08-01), Herzberger et al.
patent: 4400065 (1983-08-01), Nagler
Mercado et al, Superachromatic Petzval Objectives with Glasses Selected Using Buchdahls' Chromatic Coordinate, 10-19-1982, J.O.S.A. vol. 72, p. 1725.

Affiliated with

Also associated with

Rating

Two-glass photographic objective color-corrected at four wavelen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-glass photographic objective color-corrected at four wavelen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-glass photographic objective color-corrected at four wavelen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-203589