Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1999-03-17
2000-06-13
Kim, Robert H.
Optics: measuring and testing
By particle light scattering
With photocell detection
356352, 359223, 359224, G01B 902
Patent
active
060755970
ABSTRACT:
A means for examining the sun in monochromatic light in which the separation of the mirrors of either a catadioptric, or pure two-mirror, telescope is altered to produce a virtual object for a converging lens, termed a "forcing lens," this lens being so located between the virtual object and a narrow-band, Fabry-Perot, etalon-type, interference filter, that the convergent beam of light from the telescope passes through the interference filter at a high focal ratio, relative to the telescope's conventional focal ratio, before it traverses the forcing lens, which in turn forms the optical system's only real image, at a different, and much lower, focal ratio. Image contrast is markedly enhanced, relative to the contrast obtained by the same telescope at its conventional focus. By means of a graduated series of entrance pupils, which may be generated by a graduated series of broad-band pre-filters, a step-wise-zoom, constant-contrast, solar monochromator may be constructed. Formulas are provided for parfocalizing a series of forcing lenses. By means of such a series, real-image height may be adjusted, allowing the optimization of an eyepiece/forcing-lens combination for viewing the solar disk and surrounding prominences simultaneously, out to a considerable distance from the solar limb.
REFERENCES:
patent: 4136954 (1979-01-01), Jamieson
patent: 5080490 (1992-01-01), Manhart
patent: 5361129 (1994-11-01), Dey et al.
patent: 5410408 (1995-04-01), Evans et al.
patent: 5592293 (1997-01-01), Garfinkle
patent: 5706086 (1998-01-01), Lafleur
patent: 5757493 (1998-05-01), VanKerhove
patent: 5929992 (1999-07-01), Stenton et al.
patent: 5940181 (1999-08-01), Tsubono et al.
LandOfFree
Method for coupling narrow-band, Fabry-Perot, etalon-type interf does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for coupling narrow-band, Fabry-Perot, etalon-type interf, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for coupling narrow-band, Fabry-Perot, etalon-type interf will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2073570