US4135785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray light divider
Assignee: Medicor Muvek
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Filing: 1977-08-25
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Granted: 1979-01-23
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Expires: 1997-08-25
Abstract
Abstract Divider for directing an X-ray light beam into two or three directions, which beam emerges from the screen of an X-ray image intensifier in diagnostic X-ray arrangements. The divider is disposed at 45 DEG with respect to the optical axis, and consists essentially of a slit mirror which has a non-transparent metallization with one or two non-metallized, transparent areas or gaps therein, these areas corresponding to the required divisional ratios, there being similarly non-transparent mirrors or reflecting prisms behind the gaps.
Inventors
- 👤 Kalman Bernolak
- 👤 Sandor Meszaros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:08
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/10; G02B27/14; G02B27/143
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
185 words
An X-ray light divider for equipment fitted with an image intensifier (1) having an exit screen (2) and collimator optics (3), having an optical axis, in the path of the emitted light beam, the divider comprising: a slit mirror (12) being reflecting and non-transparent over substantially its entire area, yet having thereon at least two gaps (15, 22) which are transparent and non-reflecting, said slit mirror being centered onto the optical axis and supported by first pivoting means (19) at an angle of approx. 45° with respect to the axis; and at least one reflecting optical element (17) adjacent said gaps; second means (19) for pivoting said element with said slit mirror also about the axis, for deflecting the light beam that passes through said gaps, with a surface of said element substantially perpendicular to said area of the slit mirror; thereby forming at least three light channels (5, 6, 7) of which one (5) receives a light beam by reflection from said area of the slit mirror, while at least two other channels (6, 7) obtain respective light beams by way of said gaps.
Claim 2
Dependent Claim
185 words
An X-ray light divider for equipment fitted with an image intensifier (1) having an exit screen (2) and collimator optics (3), having an optical axis, in the path of the emitted light beam, the divider comprising: a slit mirror (12) being reflecting and non-transparent over substantially its entire area, yet having thereon at least two gaps (15, 22) which are transparent and non-reflecting, said slit mirror being centered onto the optical axis and supported by first pivoting means (19) at an angle of approx. 45° with respect to the axis; and at least one reflecting optical element (17) adjacent said gaps; second means (19) for pivoting said element with said slit mirror also about the axis, for deflecting the light beam that passes through said gaps, with a surface of said element substantially perpendicular to said area of the slit mirror; thereby forming at least three light channels (5, 6, 7) of which one (5) receives a light beam by reflection from said area of the slit mirror, while at least two other channels (6, 7) obtain respective light beams by way of said gaps.
Claim 3
Dependent Claim
17 words
The X-ray light divider as defined in claim 1, wherein said optical element (17) is a prism.
Claim 4
Dependent Claim
30 words
The X-ray light divider as defined in claim 1, further comprising at least one light gate (24, 25) adjacent said optical element (17) for limiting the light beam passing therethrough.
Claim 5
Dependent Claim
22 words
The X-ray light divider as defined in claim 1, further comprising a support (19) constituting at least one of said pivoting means.
Claim 6
Dependent Claim
47 words
The X-ray light divider as defined in claim 1, wherein one (5) of said light channels (5, 6, 7) is suitable for transillumination simultaneously with the operation of at least one of the other channels (6, 7), which latter is selectively suitable for film and spot exposures.
Claim 7
Dependent Claim
39 words
The X-ray light divider as defined in claim 1, wherein said light channels (5, 6, 7) are substantially in the same plane, two (5, 6, 7) of said channels being in substantially opposite directions with respect to each other.
References Cited (Backward Citations)
FR743062A
Cited
US3614449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |