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US3601480A Expired / Lapsed US ⏱️ 0.0 years remaining

Optical tunnel high-speed camera system

Assignee: Physics International Co
•
Filing: 1968-07-10
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Granted: 1971-08-24
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Expires: 1988-07-10
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Abstract

Abstract A high-speed framing camera is disclosed. The camera includes an optical tunnel of rectangular cross section for forming an extended array of virtual images of an event to be recorded. An objective lens system of limited aperture projects a cone of image-forming rays onto a face of a rotating mirror upon which face a real image of the event is formed. These rays are recollected by another lens to form an additional real image at the entrance of the tunnel. A copy lens at the exit of the tunnel forms rows of real images of these virtual images on an image surface outside of the tunnel. As the face of the mirror rotates through its recording angle, the images are sequentially illuminated.

Inventors

  • 👤 Donald Sexton Randall

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:35
CPC Classifications
G; G03; G03B; G03B39/00; G03B39/06

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 154 words
In a framing camera for framing an object, the combination comprising: multiple reflecting means having an input end for forming a twodimensional array of virtual images of an object to be recorded; imaging means for directing an image of said object at the input end of said reflecting means comprising a rotatable multifaced mirror having an axis of rotation and a plurality of said faces being inclined at different angles to said axis, means for rotating said mirror and reimaging means for capturing image rays projected from each rotating face of said mirror and for reimaging said rays as a real image at the input end of said reflecting means; copy means optically coupled to the output end of reflecting means for forming a two-dimensional array of real images of said virtual images on a surface outside of said reflecting means; and support means disposed at said surface for supporting a lightsensitive recording element.
Claim 2
Dependent Claim 154 words
In a framing camera for framing an object, the combination comprising: multiple reflecting means having an input end for forming a twodimensional array of virtual images of an object to be recorded; imaging means for directing an image of said object at the input end of said reflecting means comprising a rotatable multifaced mirror having an axis of rotation and a plurality of said faces being inclined at different angles to said axis, means for rotating said mirror and reimaging means for capturing image rays projected from each rotating face of said mirror and for reimaging said rays as a real image at the input end of said reflecting means; copy means optically coupled to the output end of reflecting means for forming a two-dimensional array of real images of said virtual images on a surface outside of said reflecting means; and support means disposed at said surface for supporting a lightsensitive recording element.
Claim 3
Dependent Claim 19 words
A camera according to claim 1 in which said reflecting means comprises an optical tunnel of rectangular cross section.
Claim 4
Dependent Claim 22 words
A camera according to claim 2 in which said tunnel includes two sets of plane parallel mirrors disposed orthogonal to each other.
Claim 5
Dependent Claim 19 words
A camera according to claim 2 in which said optical tunnel comprises a rectangular totally internally reflecting glass block.
Claim 6
Dependent Claim 39 words
A camera according to claim 1 in which each of said faces is in the form of a quadrilateral planar reflecting surface and each of said faces is joined on two opposite edges with the edge of another face.
Claim 7
Dependent Claim 23 words
A camera according to claim 5 in which each of said faces has an equivalent minimum area parallel to the axis of rotation.
Claim 8
Dependent Claim 150 words
An optical continuous framing camera comprising in combination: a plurality of optical tunnels of rectangular cross section, each having an input end and an output end; a rotatable multifaced mirror adapted on rotation to project sequential rows of real images at the input end of each of said tunnels from adjacent faces thereof said tunnel being positioned such that one of said mirror faces is within the recording angle of the input end of one of said optical tunnels during the time interval when an adjacent mirror face is not within the recording angle of the input end of another of said optical tunnels; objective lens means for forming a real image of an event on each face of said mirror; and copy lens means disposed at the output end of each of said tunnels for forming a plurality of real images on an image plane outside of said tunnel.
Claim 9
Dependent Claim 150 words
An optical continuous framing camera comprising in combination: a plurality of optical tunnels of rectangular cross section, each having an input end and an output end; a rotatable multifaced mirror adapted on rotation to project sequential rows of real images at the input end of each of said tunnels from adjacent faces thereof said tunnel being positioned such that one of said mirror faces is within the recording angle of the input end of one of said optical tunnels during the time interval when an adjacent mirror face is not within the recording angle of the input end of another of said optical tunnels; objective lens means for forming a real image of an event on each face of said mirror; and copy lens means disposed at the output end of each of said tunnels for forming a plurality of real images on an image plane outside of said tunnel.
Claim 10
Dependent Claim 197 words
In a framing camera for framing an object, the combination comprising: a first and second optical tunnel of rectangular cross section and each having an input end for forming two-dimensional arrays of virtual images of an object to be recorded; imaging means for directing an image of said object at the input end of each of said optical tunnels comprising a rotatable multifaced mirror disposed to project alternate images from different faces thereof to the input ends of said tunnEls, one face being within the recording angle of one of said tunnels during the time interval when an adjacent face is not within the recording angle of said other tunnel; means for rotating said mirror and reimaging means for capturing rays projected from each rotating face of said mirror and for reimaging said rays as a real image at the input end of each of said tunnels; copy means optically coupled to the output end of each of said tunnels for forming two-dimensional arrays of real images of said virtual images on a pair of surfaces outside of said tunnels; and support means disposed at each of said surfaces for supporting a set of light-sensitive recording elements.
Claim 11
Dependent Claim 197 words
In a framing camera for framing an object, the combination comprising: a first and second optical tunnel of rectangular cross section and each having an input end for forming two-dimensional arrays of virtual images of an object to be recorded; imaging means for directing an image of said object at the input end of each of said optical tunnels comprising a rotatable multifaced mirror disposed to project alternate images from different faces thereof to the input ends of said tunnEls, one face being within the recording angle of one of said tunnels during the time interval when an adjacent face is not within the recording angle of said other tunnel; means for rotating said mirror and reimaging means for capturing rays projected from each rotating face of said mirror and for reimaging said rays as a real image at the input end of each of said tunnels; copy means optically coupled to the output end of each of said tunnels for forming two-dimensional arrays of real images of said virtual images on a pair of surfaces outside of said tunnels; and support means disposed at each of said surfaces for supporting a set of light-sensitive recording elements.

References Cited (Backward Citations)

US2668473A Cited
US2687062A Cited
US2968989A Cited
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US1790491A Cited
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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) 1974-08-23 1975-02-22 1975-08-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-08-23 1979-02-22 1979-08-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-08-23 1983-02-22 1983-08-24 $7700.00 Window Closed / Lapsed

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