US3721761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical-to-electrical signal transducer apparatus
Assignee: Eastman Kodak Co
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Filing: 1971-12-23
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Granted: 1973-03-20
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Expires: 1991-12-23
Abstract
Abstract Method and apparatus for alternately scanning first and second image frames on information bearing media located in first and second scanning positions, respectively, and providing electrical signals representative of the information in the image frames. A scanning spot of light traversed in two dimensions in a repetitive raster pattern is produced by a flying spot scanner tube and is directed in a first path including the first scanning position of the first image frame or a second path including the second scanning position of the second image frame. A reflective device is operable between a first position for reflecting the scanning spot of light to a first lens which directs the scanning spot of light through the first scanning position in the first path and to optical-to-electrical signal transducer apparatus and a second position for directing the scanning spot of light through a second lens, the second scanning position, a third lens and to the first lens of the first path. Optical-to-electrical signal transducer apparatus responds to the intensity of the light transmitted by a first image frame located in the first scanning position when the reflective device is located in the first position or transmitted by a second image frame located in the second scanning position when the reflective device is located in the second position to produce electrical signals representative of the information content of the first or second image frame. The first image frame may be carried by a moving information bearing media such as moving motion picture filmstrips, and the second image frame may comprise a stationary photographic transparency. The first lens is operable to alter the size of the scanning raster pattern produced by the flying spot scanner to correspond to the size of the first image frame; likewise the second lens is operable to change the size of the scanning raster pattern to correspond to the size of the second image frame. The third lens is operable to focus the scanning raster pattern directed through the second image frame upon the first lens. Normally, only one or the other of the first and second image frames is located in the first and second scanning position, respectively, and a switch may be activated by the manual movement of the reflective device from its first position to its second position to remove or prevent the location of the first image frames in the first scanning position.
Inventors
- 👤 W Ewald
- 👤 L Metzger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:32
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/36; G; G03; G03B; G03B31/00; G03B31/02; G03B35/00; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
184 words
Apparatus for selectively exposing first and second image frames on information bearing media located in first and second positions, respectively, to radiation, and providing electrical signals representative of the information in said image frames, said apparatus comprising: a. a source of radiation; b. light directing means operable in a first mode for directing radiation in a first path including the first position of the first image frame and operable in a second mode for directing the radiation in a second path including the second position of the second image frame and the first position of the first image frame; and c. optical-to-electrical signal transducer means responsive to the radiation directed through the first position for producing electrical signals representative of the intensity of the radiation modified by the information content of the first image frame, when the first image frame is located in the first position and the light directing means is operated in said first mode, and the second image frame, when the second image frame is located in the second position and the light directing means is operated in said second mode.
Claim 2
Dependent Claim
184 words
Apparatus for selectively exposing first and second image frames on information bearing media located in first and second positions, respectively, to radiation, and providing electrical signals representative of the information in said image frames, said apparatus comprising: a. a source of radiation; b. light directing means operable in a first mode for directing radiation in a first path including the first position of the first image frame and operable in a second mode for directing the radiation in a second path including the second position of the second image frame and the first position of the first image frame; and c. optical-to-electrical signal transducer means responsive to the radiation directed through the first position for producing electrical signals representative of the intensity of the radiation modified by the information content of the first image frame, when the first image frame is located in the first position and the light directing means is operated in said first mode, and the second image frame, when the second image frame is located in the second position and the light directing means is operated in said second mode.
Claim 3
Dependent Claim
27 words
second lens means located in the second path for projecting the scanning raster pattern produced by the scanning spot of light means through the second scanning position;
Claim 4
Dependent Claim
27 words
second lens means located in the second path for projecting the scanning raster pattern produced by the scanning spot of light means through the second scanning position;
Claim 5
Dependent Claim
153 words
The apparatus of claim 1 wherein said light directing means further comprises: a. a first lens located in the first path for projecting the radiation through the first position; b. a second lens located in the second path for projecting the radiation through the second position; c. a third lens for directing the radiation projected through the second position by said second lens in the second path to said first lens located in the first path; and d. reflective means operable in first and second reflective positions corresponding to said first and second modes, respectively, said reflective means being operable in said first reflective position for directing the radiation from said source or radiation to said first lens in the first path and operable in said second reflective position for directing the radiation to said second lens and said third lens in the second path, and said first lens in the first path.
Claim 6
Dependent Claim
44 words
The apparatus of claim 1 further comprising means responsive to the operation of said light directing means in said second mode for removing the first image frame from the first position and preventing the location of the first image frame in the first position.
Claim 7
Dependent Claim
52 words
third lens means located in the second path with respect to the second scanning position for directing the scanning raster pattern produced by the scanning spot of light means, and directed by the second lens means through the second scanning position, into the first path and to said first lens means; and
Claim 8
Dependent Claim
52 words
third lens means located in the second path with respect to the second scanning position for directing the scanning raster pattern produced by the scanning spot of light means, and directed by the second lens means through the second scanning position, into the first path and to said first lens means; and
Claim 9
Dependent Claim
182 words
reflective means located with respect to said scanning spot of light means and operable in a first position corresponding to said first mode for directing the scanning raster pattern into the first path and operable in a second position corresponding to said second mode for directing the scanning raster pattern in the second path; c. means responsive to the operation of the reflective means in the second position for preventing the location of the first image frame in the first scanning position; and d. optical-to-electrical signal transducer means responsive to the scanning spot of light projected through the first scanning position for producing electrical signals representative of the intensity of the scanning spot of light modified by the information content of the first image frame, when the first image frame is located in the first scanning position and the light directing means is operated in said first mode and modified by the information content of the second image frame, when the second image frame is located in the second scanning position and the light directing means is operated in said second mode.
Claim 10
Dependent Claim
182 words
reflective means located with respect to said scanning spot of light means and operable in a first position corresponding to said first mode for directing the scanning raster pattern into the first path and operable in a second position corresponding to said second mode for directing the scanning raster pattern in the second path; c. means responsive to the operation of the reflective means in the second position for preventing the location of the first image frame in the first scanning position; and d. optical-to-electrical signal transducer means responsive to the scanning spot of light projected through the first scanning position for producing electrical signals representative of the intensity of the scanning spot of light modified by the information content of the first image frame, when the first image frame is located in the first scanning position and the light directing means is operated in said first mode and modified by the information content of the second image frame, when the second image frame is located in the second scanning position and the light directing means is operated in said second mode.
Claim 11
Independent Claim
163 words
A method of selectively exposing first and second image frames on information bearing media located in first and second positions, respectively, to radiation, and providing electrical signals representative of the information in said image frames, said method comprising the steps of: a. directing radiation in a first path including the first position of the first image frame; b. detecting the radiation directed in the first path and through the first image frame in the first position and producing electrical signals representative of the intensity of the radiation modified by the information content of the first image frame; c. directing radiation in a second path including the second position of the second image frame and the first position of the first image frame; and d. detecting the radiation directed in the second path and through the second image frame in the second position and producing electrical signals representative of the intensity of the radiation modified by the information content of the second image frame.
Claim 12
Independent Claim
163 words
A method of selectively exposing first and second image frames on information bearing media located in first and second positions, respectively, to radiation, and providing electrical signals representative of the information in said image frames, said method comprising the steps of: a. directing radiation in a first path including the first position of the first image frame; b. detecting the radiation directed in the first path and through the first image frame in the first position and producing electrical signals representative of the intensity of the radiation modified by the information content of the first image frame; c. directing radiation in a second path including the second position of the second image frame and the first position of the first image frame; and d. detecting the radiation directed in the second path and through the second image frame in the second position and producing electrical signals representative of the intensity of the radiation modified by the information content of the second image frame.
Claim 13
Dependent Claim
223 words
Apparatus for selectively scanning first and second image frames on information bearing media located in first and second scanning positions, respectively, and providing electrical signals representative of the information in said image frame, said apparatus comprising: a. means for producing a scanning spot of light and for traversing the scanning spot of light in two dimensions in a repetitive scanning raster pattern; b. light directing means operable in a first mode for directing the scanning spot of light in a first path including the first scanning position of the first image frame and operable in a second mode for directing the scanning spot of light in a second path including the second scanning position of the second image frame and the first scanning position of the first image frame; and c. optical-to-electrical signal transducer means responsive to the scanning spot of light directed through the first scanning position for producing electrical signals representative of the intensity of the scanning spot of light modified by the information content of the first image frame, when the first image frame is located in the first scanning position and the light directing means is operated in said first mode, and the second image frame, when the second image frame is located in a second scanning position and the light directing means is operated in said second mode.
Claim 14
Dependent Claim
223 words
Apparatus for selectively scanning first and second image frames on information bearing media located in first and second scanning positions, respectively, and providing electrical signals representative of the information in said image frame, said apparatus comprising: a. means for producing a scanning spot of light and for traversing the scanning spot of light in two dimensions in a repetitive scanning raster pattern; b. light directing means operable in a first mode for directing the scanning spot of light in a first path including the first scanning position of the first image frame and operable in a second mode for directing the scanning spot of light in a second path including the second scanning position of the second image frame and the first scanning position of the first image frame; and c. optical-to-electrical signal transducer means responsive to the scanning spot of light directed through the first scanning position for producing electrical signals representative of the intensity of the scanning spot of light modified by the information content of the first image frame, when the first image frame is located in the first scanning position and the light directing means is operated in said first mode, and the second image frame, when the second image frame is located in a second scanning position and the light directing means is operated in said second mode.
Claim 15
Dependent Claim
37 words
The apparatus of claim 5 wherein the scanning spot of light means comprises a flying spot scanner tube for producing a television scanning raster pattern of light on the face plate of the flying spot scanner tube.
Claim 16
Dependent Claim
52 words
The apparatus of claim 5 wherein the first image frame comprises an image frame of a continuously moving film of image frames introduced into said first scanning position; said second image frame comprises a stationary film transparency; and wherein saiD second image frame is larger in size than said first image frame.
Claim 17
Dependent Claim
170 words
The apparatus of claim 5 wherein said light directing means further comprises: a. a first lens located in the first path for projecting the scanning raster pattern developed by the scanning spot of light through the first scanning position; b. a second lens located in the second path for projecting the scanning raster pattern developed by the scanning spot of light means through the second scanning position; c. a third lens for directing the scanning raster pattern projected through the second scanning position by said second lens to said first lens located in the first path; and d. reflective means operable in first and second positions corresponding to said first and second modes, respectively, said reflective means being operable in said first position for directing the scanning raster pattern in the first path to said first lens and operable in said second position for directing said scanning raster pattern in the second path to said second lens and said third lens and in the first path to said first lens.
Claim 18
Dependent Claim
79 words
The apparatus of claim 8 wherein the reflective means comprises a mirror having first and second mirror surfaces and means for rotating the mirror from said first position wherein said first mirror surface reflects the scanning raster pattern into the first path, to said second position wherein said second mirror surface reflects the scanning raster pattern into said second path and said first mirror surface reflects the scanning raster pattern directed through said third lens into the first path.
Claim 19
Dependent Claim
44 words
The apparatus of claim 9 further comprising means responsive to the operation of said mirror in said second position for removing the first image frame from the first scanning position and preventing the location of the first image frame in the first scanning position.
Claim 20
Dependent Claim
291 words
In apparatus for selectively displaying first image frames or motion picture film or a second image frame on a photographic transparency on a television screen, apparatus for selectively scanning the first and second image frames located in first and second scanning positions, respectively, and providing electrical signals representative of the information in said image frames for control of the reproduction of the images on the television comprising: a. means for producing a scanning spot of light and for traversing the scanning spot of light in two dimensions in a repetitive scanning raster pattern; b. light directing means operable in a first mode for directing the scanning spot of light in a first path including the first scanning position of the first image frame on the motion picture film and operable in a second mode for directing the scanning spot of light in a second path including the second scanning position of the second image frame on the photographic transparency and the first scanning position of the first image frames; and c. optical-to-electrical signal transducer means responsive to the radiation directed through the first scanning position for producing electrical signals representative of the intensity of the scanning spot of light modified by the information content of the first image frames, when the first image frames on the motion picture film are located in the first scanning position and the light directing means is operated in said first mode, and the second image frame on the photographic transparency, when the second image frame is located in the second scanning position and the light directing means is operated in said second mode, whereby the electrical signals may be used to control the reproduction of the first or second image frames on the television receiver.
Claim 21
Dependent Claim
291 words
In apparatus for selectively displaying first image frames or motion picture film or a second image frame on a photographic transparency on a television screen, apparatus for selectively scanning the first and second image frames located in first and second scanning positions, respectively, and providing electrical signals representative of the information in said image frames for control of the reproduction of the images on the television comprising: a. means for producing a scanning spot of light and for traversing the scanning spot of light in two dimensions in a repetitive scanning raster pattern; b. light directing means operable in a first mode for directing the scanning spot of light in a first path including the first scanning position of the first image frame on the motion picture film and operable in a second mode for directing the scanning spot of light in a second path including the second scanning position of the second image frame on the photographic transparency and the first scanning position of the first image frames; and c. optical-to-electrical signal transducer means responsive to the radiation directed through the first scanning position for producing electrical signals representative of the intensity of the scanning spot of light modified by the information content of the first image frames, when the first image frames on the motion picture film are located in the first scanning position and the light directing means is operated in said first mode, and the second image frame on the photographic transparency, when the second image frame is located in the second scanning position and the light directing means is operated in said second mode, whereby the electrical signals may be used to control the reproduction of the first or second image frames on the television receiver.
Claim 22
Dependent Claim
69 words
The apparatus of claim 11 further comprising means for moving the first image frames on the motion picture film through the first scanning position in response to the operation of the light directing means in the first mode and for removing the first image frames on the motion picture filM from the first scanning position in response to the operation of the light directing means in the second mode.
Claim 23
Dependent Claim
131 words
Apparatus for selectively scanning first and second image frames located in first and second scanning positions, respectively, and providing electrical signals representative of the information in said image frames, said apparatus comprising: a. means for producing a scanning spot of light and for traversing the scanning spot of light in two dimensions in a repetitive scanning raster pattern; b. light directing means operable in a first mode for directing the scanning spot of light in a first path including the first scanning position of the first image frame, and operable in a second mode for directing the scanning spot of light in a second path including the second scanning position of the second image frame and the first scanning position of the first image frame, said light directing means further comprising:
Claim 24
Dependent Claim
131 words
Apparatus for selectively scanning first and second image frames located in first and second scanning positions, respectively, and providing electrical signals representative of the information in said image frames, said apparatus comprising: a. means for producing a scanning spot of light and for traversing the scanning spot of light in two dimensions in a repetitive scanning raster pattern; b. light directing means operable in a first mode for directing the scanning spot of light in a first path including the first scanning position of the first image frame, and operable in a second mode for directing the scanning spot of light in a second path including the second scanning position of the second image frame and the first scanning position of the first image frame, said light directing means further comprising:
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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |