Patent US2053920A successfully refreshed from Google Patents.
US4289401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical system for spectral devices
Assignee: Jenoptik AG
•
Filing: 1979-12-26
•
Granted: 1981-09-15
•
Expires: 1999-12-26
Abstract
Abstract The invention relates to an optical system for spectral devices which improves the resolution of a spectral line image up to the edge portions by use of at least two collimators. The collimators are adjacently located in direction of dispersion and differently inclined relative to the plane of dispersion of the optical system. The produced spectral sections are imaged on a detector where the number of the collimators used depends on the number of spectral sections.
Inventors
- 👤 Joachim Mohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:37
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/12; G01J3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
An optical system for spectral devices, comprising subsequently in a path of rays and in mutual alignment at least one light entrance opening, at least two collimating reflectors for splitting said path of rays, one dispersing member for the splitted path of rays, said collimating reflectors being adjacently located in the dispersion direction of said dispersing member and inclinedly arranged relative to each other and at right angles to the dispersion direction, said dispersing member for producing at least two sections of a spectrum in continuation relative to each other, a camera optics, and at least one detector arranged in the meridional focal plane of the optical system said camera optics for imaging said sections onto said detector.
Claim 2
Dependent Claim
118 words
An optical system for spectral devices, comprising subsequently in a path of rays and in mutual alignment at least one light entrance opening, at least two collimating reflectors for splitting said path of rays, one dispersing member for the splitted path of rays, said collimating reflectors being adjacently located in the dispersion direction of said dispersing member and inclinedly arranged relative to each other and at right angles to the dispersion direction, said dispersing member for producing at least two sections of a spectrum in continuation relative to each other, a camera optics, and at least one detector arranged in the meridional focal plane of the optical system said camera optics for imaging said sections onto said detector.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |