Patent US4436391A successfully refreshed from Google Patents.
US4436391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for projecting any selected image in a recording medium having images recorded thereon in at least two lines
Assignee: Canon Inc
•
Filing: 1982-08-23
•
Granted: 1984-03-13
•
Expires: 2002-08-23
Abstract
Abstract An apparatus for projecting on a projection surface any desired image in a recording medium having images recorded on at least two lines on the medium. Line changing device is provided to change the line of images to be projected on the projection surface. In the projection light path there is provided image rotator for changing the orientation of the image projected on the projection surface. In response to the operation of the line changing device, the image rotator is driven so as to project the image in the proper orientation for observation on the projection surface.
Inventors
- 👤 Kazuo Kashiwagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:20
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/111; G03B21/113
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
88 words
Apparatus for projecting on a projection surface any selected image in a recording medium having images recorded thereon in at least two lines, said apparatus comprising: optical means for projecting on the projection surface any image in one line on said recording medium; image rotating means for changing the orientation of the image projected on said projection surface; line changing means for changing the line of images to be projected; and means for driving said image rotating means in response to the operation of said line changing means.
Claim 2
Dependent Claim
88 words
Apparatus for projecting on a projection surface any selected image in a recording medium having images recorded thereon in at least two lines, said apparatus comprising: optical means for projecting on the projection surface any image in one line on said recording medium; image rotating means for changing the orientation of the image projected on said projection surface; line changing means for changing the line of images to be projected; and means for driving said image rotating means in response to the operation of said line changing means.
Claim 3
Dependent Claim
56 words
Apparatus according to claim 1, wherein said line changing means includes means for shifting the recording medium in the direction perpendicular to the line of images and said image rotating means is driven in response to the operation of said shift means to project the image in the proper orientation for observation on said projection surface.
Claim 4
Dependent Claim
61 words
Apparatus according to claim 1, wherein said line changing means includes means for shifting said optical means and said image rotating means in the direction perpendicular to the line of images and said image rotating means is driven in response to the operation of said shift means to project the image in the proper orientation for observation on said projection surface.
Claim 5
Dependent Claim
28 words
Apparatus according to claim 3, wherein said optical means includes an image-forming lens which is shifted in the direction perpendicular to the optical axis by said shift means.
Claim 6
Dependent Claim
18 words
Apparatus according to any one of claims 1 to 3, wherein said image rotating means includes a prism.
Claim 7
Dependent Claim
148 words
Apparatus for projecting on a projection surface any selected image in a recording medium having images and retrieving marks recorded thereon in at least two lines, said apparatus comprising: optical means for projecting on said projection surface any image in one line on the recording medium; image rotating means for optically changing the orientation of the image projected on said projection surface; line changing means for changing the line of images to be projected on said projection surface; means for driving said image rotating means in response to the operation of said line changing means; and mark detection means being disposed along the optical path between said image rotating means and projection surface to detect said retrieving mark in the line of images, every retrieving mark in every line being projected on said detection means at the same detection position by the driving of said image rotating means.
Claim 8
Dependent Claim
148 words
Apparatus for projecting on a projection surface any selected image in a recording medium having images and retrieving marks recorded thereon in at least two lines, said apparatus comprising: optical means for projecting on said projection surface any image in one line on the recording medium; image rotating means for optically changing the orientation of the image projected on said projection surface; line changing means for changing the line of images to be projected on said projection surface; means for driving said image rotating means in response to the operation of said line changing means; and mark detection means being disposed along the optical path between said image rotating means and projection surface to detect said retrieving mark in the line of images, every retrieving mark in every line being projected on said detection means at the same detection position by the driving of said image rotating means.
Claim 9
Dependent Claim
61 words
Apparatus according to claim 6, wherein said line changing means includes means for shifting said optical means and said image rotating means in the direction perpendicular to the line of images and said image rotating means is driven in response to the operation of said shift means to project the image in the proper orientation for observation on said projection surface.
Claim 10
Dependent Claim
56 words
Apparatus according to claim 6, wherein said line changing means includes means for shifting said recording medium in the direction perpendicular to the line of images and said image rotating means is driven in response to the operation of said shift means to project the image in the proper orientation for observation on said projection surface.
Claim 11
Dependent Claim
28 words
Apparatus according to claim 6, wherein said optical means includes an image-forming lens which is shifted by said shift means in the direction perpendicular to the optical axis.
Claim 12
Dependent Claim
18 words
Apparatus according to any one of claims 6 to 8, wherein said image rotating means includes a prism.
Claim 13
Dependent Claim
65 words
Apparatus according to claim 6, which further comprises feeding means for feeding the recording medium in the forward or the reverse direction; trailing end detection means for detecting the trailing end of the recording medium; and control means for changing the film feed direction of said feeding means and for driving said line changing means when the trailing end is detected by said detection means.
Claim 14
Dependent Claim
126 words
Apparatus for projecting on a projection surface any selected image in a recording medium having images recorded thereon in at least two lines, said apparatus comprising: optical means for projecting on said projection surface any image in one line on the recording medium; image rotating means for optically changing the orientation of the image projected on said projection surface; feeding means for feeding the recording medium in the forward or the reverse direction; line changing means for changing the line of images to be projected on said projection surface; detection means for detecting the trailing end of the recording medium; and control means for controlling said image rotating means, feeding means and line changing means in response to the output from said trailing end detection means.
Claim 15
Dependent Claim
126 words
Apparatus for projecting on a projection surface any selected image in a recording medium having images recorded thereon in at least two lines, said apparatus comprising: optical means for projecting on said projection surface any image in one line on the recording medium; image rotating means for optically changing the orientation of the image projected on said projection surface; feeding means for feeding the recording medium in the forward or the reverse direction; line changing means for changing the line of images to be projected on said projection surface; detection means for detecting the trailing end of the recording medium; and control means for controlling said image rotating means, feeding means and line changing means in response to the output from said trailing end detection means.
Claim 16
Dependent Claim
220 words
Apparatus for retrieving any desired image in a recording medium having images and retrieving marks recorded thereon in at least two lines; said apparatus comprising: optical means for projecting any image in one line on the recording medium on a projection surface; feeding means for feeding the recording medium in the forward or the reverse direction; line changing means for changing the line of images to be projected on said projection surface, said line changing means including means for shifting said optical means while the position of the recording medium remains the same; first detection means for detecting the trialing end of said recording medium; second detection means for detecting said retrieving mark; counter means for adding and subtracting a signal emitted from said first detection means in accordance with the feeding direction of the recording medium; control means for changing the feeding direction of said feeding means, and for driving said line changing means when the trailing end of the recording medium is detected by said trailing end detector; and feed control means for making a comparison between the address number of the desired image to be retrieved and the content of said counter means, and for stopping the feed of the recording medium when the address number and the content of said counter means coincides with each other.
Claim 17
Dependent Claim
220 words
Apparatus for retrieving any desired image in a recording medium having images and retrieving marks recorded thereon in at least two lines; said apparatus comprising: optical means for projecting any image in one line on the recording medium on a projection surface; feeding means for feeding the recording medium in the forward or the reverse direction; line changing means for changing the line of images to be projected on said projection surface, said line changing means including means for shifting said optical means while the position of the recording medium remains the same; first detection means for detecting the trialing end of said recording medium; second detection means for detecting said retrieving mark; counter means for adding and subtracting a signal emitted from said first detection means in accordance with the feeding direction of the recording medium; control means for changing the feeding direction of said feeding means, and for driving said line changing means when the trailing end of the recording medium is detected by said trailing end detector; and feed control means for making a comparison between the address number of the desired image to be retrieved and the content of said counter means, and for stopping the feed of the recording medium when the address number and the content of said counter means coincides with each other.
Claim 18
Dependent Claim
28 words
Apparatus according to claim 13, wherein said optical means includes an image-forming lens which is shifted by said shift means in the direction perpendicular to the optical axis.
Claim 19
Dependent Claim
26 words
Apparatus according to claim 14, wherein said apparatus further comprises means for illuminating the recording medium, said illuminating means moving in association with said optical means.
References Cited (Backward Citations)
US2569918A
Cited
DE1918093U
Cited
US3354776A
Cited
US3793507A
Cited
US3751152A
Cited
US3981574A
Cited
US4043652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |