US3216313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monochromator of the type having a plane grating therein
Assignee: Bausch and Lomb Inc
•
Filing: 1961-06-23
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Granted: 1965-11-09
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Expires: 1981-06-23
Abstract
No abstract record available.
Inventors
- 👤 James J Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/12; G01J3/18; G01J3/1804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A MONOCHROMATOR OR THE LIKE COMPRISING AN ENTRANCE SLIT ADAPTED TO RECEIVE LIGHT RAYS FROM A LIGHT SOURCE, A PLANE GRATING OPTICAL ALIGNED WITH SAID ENTRANCE SLIT FOR RECEIVING NON-COLLIMATED LIGHT RAYS WHICH PASS THROUGH SAID ENTRANCE SLIT FROM THE LIGHT SOURCE FOR DIFFRACTING THE LIGHT RAYS INCIDENT THEREUPON, A CONCAVE MIRROR AND AN EXIT SLIT, SAID MIRROR DISPOSED IN OPTICAL ALIGNMENT WITH SAID GRATING AND CONFRONTING SAID GRATING FOR DIRECTING THE DIFFRACTED LIGHT TOWARD SAID EXIT SLIT, AND AN ASPHERIC LENS DISPOSED ON THE OPTICAL AXIS OF THE MONOCHROMATOR BETWEEN SAID ENTRANCE SLIT AND SAID EXIT SLIT TO CORRECT FOR ABERRATIONS.
Claim 2
Dependent Claim
102 words
A MONOCHROMATOR OR THE LIKE COMPRISING AN ENTRANCE SLIT ADAPTED TO RECEIVE LIGHT RAYS FROM A LIGHT SOURCE, A PLANE GRATING OPTICAL ALIGNED WITH SAID ENTRANCE SLIT FOR RECEIVING NON-COLLIMATED LIGHT RAYS WHICH PASS THROUGH SAID ENTRANCE SLIT FROM THE LIGHT SOURCE FOR DIFFRACTING THE LIGHT RAYS INCIDENT THEREUPON, A CONCAVE MIRROR AND AN EXIT SLIT, SAID MIRROR DISPOSED IN OPTICAL ALIGNMENT WITH SAID GRATING AND CONFRONTING SAID GRATING FOR DIRECTING THE DIFFRACTED LIGHT TOWARD SAID EXIT SLIT, AND AN ASPHERIC LENS DISPOSED ON THE OPTICAL AXIS OF THE MONOCHROMATOR BETWEEN SAID ENTRANCE SLIT AND SAID EXIT SLIT TO CORRECT FOR ABERRATIONS.
References Cited (Backward Citations)
US2671376A
Cited
US2797609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |