US3843260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Real time holographic system
Assignee: Individual
•
Filing: 1973-11-05
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Granted: 1974-10-22
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Expires: 1993-11-05
Abstract
Abstract A real time holographic system for use in nondestructive testing having an object beam from which the return, from the object, illuminates a holographic plate. A reference beam has a pair of conical shaped reflectors in the reference beam path to illuminate the holographic plate with a substantially conical shaped beam which surrounds the object under test.
Inventors
- 👤 W Edmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:19
CPC Classifications
G; G01; G01B; G01B9/00; G01B9/02; G01B9/021; Y; Y10; Y10S; Y10S359/00; Y10S359/90; Y10S359/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A real time holographic system for use in non-destructive testing of an object comprising: a source of monochromatic coherent light; means for splitting said light into an object beam and a reference beam; means for illuminating the object with said object beam; a holograph plate positioned in light receiving relation to light reflected from said object; means for directing said reference beam toward said holographic plate in a substantially conical path surrounding the object with said light passing in close proximity to the object; said means for directing the light along a conical path toward the holographic plate including a first conical member having an outside reflecting surface; said conical member being positioned on the side of said object remote from said holographic plate; means for directing the reference beam light from said beam splitting means toward said conical member to thereby provide a radially directed beam; an annular truncated conical member surrounding said first conical member adapted to direct said radially directed beam tOward said holographic plate along said conical path.
Claim 2
Dependent Claim
172 words
A real time holographic system for use in non-destructive testing of an object comprising: a source of monochromatic coherent light; means for splitting said light into an object beam and a reference beam; means for illuminating the object with said object beam; a holograph plate positioned in light receiving relation to light reflected from said object; means for directing said reference beam toward said holographic plate in a substantially conical path surrounding the object with said light passing in close proximity to the object; said means for directing the light along a conical path toward the holographic plate including a first conical member having an outside reflecting surface; said conical member being positioned on the side of said object remote from said holographic plate; means for directing the reference beam light from said beam splitting means toward said conical member to thereby provide a radially directed beam; an annular truncated conical member surrounding said first conical member adapted to direct said radially directed beam tOward said holographic plate along said conical path.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |