Method and apparatus for producing orthophotoplans

Claim 2

In a method for producing filmed representations, the steps comprising separately generating imagery in light beams from different ones of two projectors wherein said light imagery from one of said projectors and a preponderant part of the light imagery from the other of said projectors are modulated for contrast with respect to each other while a remaining part of said light imagery from said other of said projectors is maintained effectively unmodulated, projecting said modulated light beams so as to apply said imagery thereof upon a viewing platen, and optically sighting separately said imagery on said platen in a contrasting manner complementing said light imagery modulations so as to facilitate observation of a stereoscopic model, including projecting said unmodulated light imagery from said other of said projectors on a sequence of contiguous limited areas of a light sensitive photographic film while obscuring from said limited areas said light imagery from the said one of said projectors.

Claim 3

The method of claim 1 wherein a polarizing filtering of said light beams effectuates said modulation of said light imageries.

Claim 4

The method of claim 1 wherein an anaglyphic filtering of said light beams effectuates said modulation of said light imageries.

Claim 5

In a method for producing filmed representations, the steps comprising separately projecting imagery in light from respective ones of two projectors wherein said projectors alternately present said imageries in light therefrom on a viewing platen and binocularly viewing said imageries in light on said platen by sighting thereon with one eye and then the other alternately in correspondence with said alternating imagery presentation so as to facilitate observation of a stereoscopic model, additionally projecting light imagery in said imagery of light from one of said projectors, in an approximately continuous manner on a sequence of contiguous limited areas of a light sensitive photographic film while obscuring from said limited areas said light imagery projected from the other of said projectors then viewable on said platen.

Claim 6

In a method for producing filmed representations, the steps comprising separately projecting imagery in light from respective ones of two projectors wherein said projectors alternately present said imageries in light therefrom on a viewing platen and binocularly viewing said imageries in light on said platen by sighting thereon with one eye and then the other alternately in correspondence with said alternating imagery presentation so as to facilitate observation of a stereoscopic model, additionally projecting light imagery in said imagery of light from one of said projectors, in an approximately continuous manner on a sequence of contiguous limited areas of a light sensitive photographic film while obscuring from said limited areas said light imagery projected from the other of said projectors then viewable on said platen.

Claim 9

Orthophotoscope instrumentation comprising apparatus for producing stereoscopic imagery by projected light, devices for facilitating observation of said imagery as a stereoscopic model, and mechanism for recording said imagery as an orthorepresentation, said mechanism comprising light sensitive recording means responsive to exposure to said imagery, a first displaceable light masking means superimposed on a major part of said light sensitive recording means, a second displaceable light masking means superimposed on a minor part of said light sensitive recording means, said devices including means made integral with said second displaceable light masking means and having first and second facilities for displaying by reflection imagery of said projected light permitting exposure to said light of a part of said light sensitive recording means outside of said major and minor parts, respectively, means facilitating displacement of said first masking means in a first coordinate direction in a predetermined plane, means facilitating displacement of said second masking means together with said integral means thereof in a second coordinate direction in said predetermined plane, a third displaceable means constituting a support base for said light sensitive recording means and said first and second masking means, means facilitating displacement of said displaceable base together with said means supported thereon in a further coordinate direction perpendicular to said predetermined plane, said apparatus comprising a plurality of imagery by light projecting arrangements producing said light imagery on said first and second facilities, means in a first of said plurality of projector arrangements to alternately permit and prevent projection of imagery by light on said first facility in a first uniform and continuing sequence, and means in a second of said plurality of projector arrangements to alternately permit and prevent projection of imagery by light on said first facility in a second uniform and continuing sequence, wherein said first and second sequences are totally out of phase and one of said sequencing means is further substantially effective to continuously allow production of imagery by projected light to fall on said second facility, and said devices being operable to permit observation of said imagery on said first facility when said several displacement facilitating means of said mechanism are operable to displace said facilities whereby contiguous parts of said light sensitive recording means are systematically exposed to imagery by light and records an orthorepresentation thereon.

Claim 10

Orthophotoscope instrumentation comprising apparatus for producing stereoscopic imagery by projected light, devices for facilitating observation of said imagery as a stereoscopic model, and mechanism for recording said imagery as an orthorepresentation, said mechanism comprising light sensitive recording means responsive to exposure to said imagery, a first displaceable light masking means superimposed on a major part of said light sensitive recording means, a second displaceable light masking means superimposed on a minor part of said light sensitive recording means, said devices including means made integral with said second displaceable light masking means and having first and second facilities for displaying by reflection imagery of said projected light permitting exposure to said light of a part of said light sensitive recording means outside of said major and minor parts, respectively, means facilitating displacement of said first masking means in a first coordinate direction in a predetermined plane, means facilitating displacement of said second masking means together with said integral means thereof in a second coordinate direction in said predetermined plane, a third displaceable means constituting a support base for said light sensitive recording means and said first and second masking means, means facilitating displacement of said displaceable base together with said means supported thereon in a further coordinate direction perpendicular to said predetermined plane, said apparatus comprising a plurality of imagery by light projecting arrangements producing said light imagery on said first and second facilities, means in a first of said plurality of projector arrangements to alternately permit and prevent projection of imagery by light on said first facility in a first uniform and continuing sequence, and means in a second of said plurality of projector arrangements to alternately permit and prevent projection of imagery by light on said first facility in a second uniform and continuing sequence, wherein said first and second sequences are totally out of phase and one of said sequencing means is further substantially effective to continuously allow production of imagery by projected light to fall on said second facility, and said devices being operable to permit observation of said imagery on said first facility when said several displacement facilitating means of said mechanism are operable to displace said facilities whereby contiguous parts of said light sensitive recording means are systematically exposed to imagery by light and records an orthorepresentation thereon.

Claim 11

The orthophotoscope instrumentation of claim 6 wherein said means effecting said first sequencing comprises means for substantially continuously allowing projection of imagery by light by said first projector on said second facility, said second projector having cooperatively connected therewith means continuously preventing projection of imagery by light therefrom on said second facility, and said several displacement facilitating means of said mechanism are selectively operable, in cooperation with said devices for observing said stereoscopic model on said first facility, to displace said second facility in coordinated directions with respect to said apparatus while effectuating said recording of an orthorepresentation on said light sensitive recording means.

Claim 12

The orthophotoscope instrumentation of claim 7 wherein said first and second displaceable light masking means are interconnected pairs of flexible opaque screens and said first facility is a surface of a platen integrally connected with one of said pairs of screens, and said second facility is a relatively narrow slot in said surface.

Claim 13

The orthophotoscope instrumentation of claim 8 wherein each of said first and second projector light sequencing means is a cylindrical shutter having light obscuring blades interspersed with light transmitting spaces and said one sequencing means substantially continuously allowing projection of light comprising circumferential slits in said light obscuring blades thereof, and said means for continuously preventing projection of said light of said second of said plurality of projectors is an extensible string attached at opposite ends to said second projector and one end of said platen surface slot.

Claim 14

The orthophotoscope instrumentation of claim 6 wherein said first of said plurality of projector arrangements comprises a first part including a diapositive mounting means and a projection lens means, and a second part arranged to illuminate said first part means, and said second part including a lamp section and a condenser lens section separated by a further section comprising said first light sequencing means.

Claim 15

The orthophotoscope instrumentation of claim 6 wherein said first of said plurality of projector arrangements comprises a first part including a diapositive mounting means and a projection lens means, and a second part arranged to ilLuminate said first part means, and a further part including a light passage channel connected to said second part and movable therewith in response to displacements of said second part by said means having first and second facilities, and said channel having secured thereto said first light sequencing means whereby displacements of said first and second facilities cause said light sequencing means to follow along therewith in position to interrupt light from said channel to said first and second facilities.

Claim 16

The orthophotoscope instrumentation of claim 8 wherein said first projector light sequencing means is a cylindrical shutter having light obscuring blades interspersed with light transmitting spaces and means for substantially continuously allowing projection of light are circumferential slits in said light obscuring blades, said second of said plurality of projectors comprises a first part including a diapositive mounting means and a projection lens means, and a second part arranged to illuminate said first part means, and said second part including a condenser lens section and a lamp section separated by a further section comprising said first light sequencing means, and said means for continuously preventing projection of said light of said second projector is a bar suspended from said condenser lens section so as to span across the optical axis of the lens thereof.

Claim 17

The orthophotoscope instrumentation of claim 6 wherein said second of said plurality of projector arrangements comprises a first part including a diapositive mounting means, a projection lens means, and a light reflector means adapted to direct light radiated thereon through a diapositive in said mounting means therefor, and said projection lens means, and further comprises a second part disposed to illuminate said light reflector means, said second part includes an enclosure housing having a base structure adjustably mounted therein, said base structure having secured thereon a lamp and said second light imagery sequencing means interposing spaced light interrupting elements thereof between said lamp and said light reflecting means.

Claim 18

The orthophotoscope instrumentation of claim 13 wherein a clamping mount is maintained adjustably supported on said base structure, said mount having secured therein a motor positioning a shaft thereof adjacent said lamp, and said light interrupting elements being disposed to form a circular pattern about a central shaft therefor having means connected to said motor shaft.

Claim 19

Orthophotoscope instrumentation having stereoscopic image producing apparatus comprising dual projectors individually fitted with a different one of a stereopair of recorded imagery, a light reflective platen panel displaceable over a light sensitive recording surface, said panel having a relatively small aperture therein which opens on to said recording surface, and viewing means adapted to facilitate observation of said panel by an operator of said instrumentation, each of said projectors having, respectively, individual distinguishable light differentiating means therein for generating contrasting modulated light imagery of said stereopair, and further light differentiating means in said viewing means which upon application of said projected light imagery to said platen panel enables a presentation for observation at said viewing means of a stereoscopic model of said recorded imagery, said light differentiating means of one of said projectors having a part thereof adapted to modulate a preponderant portion of said light imagery projected from the said one of said projectors on to said platen panels, and another part thereof facilitating the projection from the said one of said projectors of effectively unmodulated light imagery on to said platen panel aperture during displacement of said platen panel, and light masking means attached to said other of said projectors and maintained disposed thereby with respect to said platen panel during displacements thereof for preventing application of light imagery from said other of said projectors to said platen panel aperture whereby a sequence of contiguous limited areas of said recording surface is exposed to said unmodulated light imagery and precluded from exposure by said modulated light imagery.

Claim 20

Orthophotoscope instrumentation having stereoscopic image producing apparatus comprising dual projectors individually fitted with a different one of a stereopair of recorded imagery, a light reflective platen panel displaceable over a light sensitive recording surface, said panel having a relatively small aperture therein which opens on to said recording surface, and viewing means adapted to facilitate observation of said panel by an operator of said instrumentation, each of said projectors having, respectively, individual distinguishable light differentiating means therein for generating contrasting modulated light imagery of said stereopair, and further light differentiating means in said viewing means which upon application of said projected light imagery to said platen panel enables a presentation for observation at said viewing means of a stereoscopic model of said recorded imagery, said light differentiating means of one of said projectors having a part thereof adapted to modulate a preponderant portion of said light imagery projected from the said one of said projectors on to said platen panels, and another part thereof facilitating the projection from the said one of said projectors of effectively unmodulated light imagery on to said platen panel aperture during displacement of said platen panel, and light masking means attached to said other of said projectors and maintained disposed thereby with respect to said platen panel during displacements thereof for preventing application of light imagery from said other of said projectors to said platen panel aperture whereby a sequence of contiguous limited areas of said recording surface is exposed to said unmodulated light imagery and precluded from exposure by said modulated light imagery.

Claim 21

The instrumentation of claim 15 wherein said individual distinguishable light differentiating means and said further light differentiating means include complementary sets of light modulating filters.

Claim 22

The instrumentation of claim 16 wherein said another part of said light differentiating means of said one of said projectors is an optically clear passage through a relatively small area of a light modulating filter of one set of said sets of filters.

Claim 23

The instrumentation of claim 16 wherein said optically clear passage is a slot in said light modulating filter of one set of said sets of filters.

Claim 24

In an orthophotoscope instrumentation wherein dual projection means, serving to project a stereopair set up therein, have in each such means a light source adapted to impart separately respective recorded imageries of said stereopair to a light reflecting panel portion of a platen which is displaceable over a light sensitive recording surface so as to mask light therefrom, means operatively associated with said platen which is adapted in response to displacements thereof to maintain masked from light all of said recording surface not masked by said platen, said panel having a relatively small aperture therein which opens on to said recording surface, a pair of light modulating means operatively associated separately with respective ones of said light sources further adapting said dual means to project said recorded imageries by way of lights which are modulated for contrast with respect to each other, and one of said operatively associated light modulating means having a part thereof adapted to allow effectively unmodulated light from said light source thereof to effect a concurrent projection of a part of said related imagery upon said platen panel aperture during displacements of said platen, and self-adjusting, flexible linkage means coupling said platen to said light source of said light affected by said part allowing projection with unmodulated light such that displacements of said platen operate to regulate dispositions of said connected light source whereby there is maintained a fixed positional correspondence between said imagery projected with unmodulated light and said panel aperture.

Claim 25

In an orthophotoscope instrumentation wherein dual projection means, serving to project a stereopair set up therein, have in each such means a light source adapted to impart separately respective recorded imageries of said stereopair to a light reflecting panel portion of a platen which is displaceable over a light sensitive recording surface so as to mask light therefrom, means operatively associated with said platen which is adapted in response to displacements thereof to maintain masked from light all of said recording surface not masked by said platen, said panel having a relatively small aperture therein which opens on to said recording surface, a pair of light modulating means operatively associated separately with respective ones of said light sources further adapting said dual means to project said recorded imageries by way of lights which are modulated for contrast with respect to each other, and one of said operatively associated light modulating means having a part thereof adapted to allow effectively unmodulated light from said light source thereof to effect a concurrent projection of a part of said related imagery upon said platen panel aperture during displacements of said platen, and self-adjusting, flexible linkage means coupling said platen to said light source of said light affected by said part allowing projection with unmodulated light such that displacements of said platen operate to regulate dispositions of said connected light source whereby there is maintained a fixed positional correspondence between said imagery projected with unmodulated light and said panel aperture.

Claim 26

In the orthophotoscope instrumentation of claim 19 wherein said coupling of said light source to said platen includes an adjustable arm of said linkage means which further comprises a rounded riser affixed in said platen, means adapting said arm to direct displacements of said light source in accordance with translations of said platen, said arm adapting means including a member secured to said arm and having affixed to a dependent end thereof a bearing element, and extensible means, connected to said platen and displaceable in said arm member, adapted to retain said bearing element in contact with said riser and restrain the excursions of said arm in the course of said adjustment thereof to pivotal movements about a point in a plane of said recording surface.

Claim 27

In the orthophotoscope instrumentation of claim 20 wherein said arm member houses pulleys adapted thereby to rotate in differently disposed planes, and said extensible means including a set of lines which are individually anchored to said platen, about said riser affixed therein, and acting on respective ones of said pulleys, said lines each having a tensioned spring connected therein whereby pivotal movements of said arm affect changes in the lengths of said lines with changes in said spring tensions.

Claim 28

In the orthophotoscope instrumentation of claim 21 wherein said riser projects from said platen as a surface of a spherical sector of a sphere having a center thereof in the plane of said recording surface, and said bearing element comprising a contacting surface having a curvature conforming to said spherical sector surface.