High kelvin surgical lighting fixture
Abstract
Abstract A SURGICAL LIGHTING FIXTURE HAVING A HIGH KELVIN RATING IS DISCLOSED, SAID FIXTURE SUPPLYING LIGHT AT THE COLOR TEMPERATURE OF APPROXIMATELY 6,000*K. THE COLOR TEMPERATURE THUS ATTAINED IS WRITTEN AN ACCEPTED TOLERANCE OF PERFECT AVERAGE DAYLIGHT AND IS ACHIEVED BY RAISING THE ILLUMINATION SOURCE OF 3,000*K. BY MEANS OF AN INTERNAL CYLINDRICAL FILTER AND A DICHROIC REFLECTOR SURROUNDING SAID INTERNAL FILTER. THE LAMP HOUSING ASSEMBLY CONTAINS MEANS FOR COOLING THE LAMP SEAL DURING OPERATION OF THE LAMPS AS WELL AS COVER MEANS FOR SEALING THE INTERIOR OF THE HOUSING AGAINST DUST AND TO PREVENT UNWANTED HEAT FROM PASSING TO THE FRONT OF THE SURGICAL FIXTURE TO THE PATIENT AND THE DOCTORS BELOW.
Inventors
- 👤 Norman E Lauterbach
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |