FR2840079A1 - Optical equipment for recording the total view obtainable from a given point, comprises two objectives of angle greater than 180 degrees, correcting lenses, CCD captors and telescopic mast - Google Patents

Abstract

Two objectives (1,2) each having angles greater than 180 degrees area mounted at either end of a rigid support (3). The support also contains correcting lenses (1',2') and two central CCD captors (4,5) which are mounted back-to-back. A telescopic tube (6) connects one side of the rigid support to a camera base (8) and also contains the connecting cables (7)

Description

Or other.

  -1 The present invention relates to a device for confirming or photographing the

  the whole environment of a place, including the device.

  Traditionally, the lens allows 180 shots. There are also 360 lenses, but taking the image on a circular strip that does not allow you to see the whole ground and to look at the same time at the sky or

the ceiling. The view is incomplete.

  The device according to the invention makes it possible to remedy this drawback and to record the entire visible or invisible spectrum at once, without

lag in time or space.

  It has one or more objectives, on the left and on the right, mounted in opposition, each unit or group totaling an angle of more than. The assembly is mounted on a support, fixed at the top of a rod

  telescopic, connected to the camera body or the camera.

  When an image is recorded, it is made up of all the parts forming more than half a sphere: wind elements recorded twice at

['intersection of the parties.

  According to the particular embodiments, we can have two CCD sensors opposite back to back and receiving the images of two objectives, or groups of objectives, complementary, or even a single CCD, receiving the images by

two symmetrical prisms.

  These embodiments make it possible to process the whole, obtained digitally, to easily eliminate the parts recorded twice, and to cut, for example, the image into a strip resembling a peel

  orange, or like the fa, these balls of a soccer ball, among others.

  A more conventional embodiment consists in opposing two prisms back to back returning the images to the base of the telescopic tube. We then obtain on film, two circles, secants or not, representing the two half-spheres, u once removed the part in reg istree twice, by optical cache reg lable by

example.

  The accompanying drawings illustrate the invention:

  Figure 1 shows in section the device of the invention.

  Figures 2 and 3 show in section two variants of this device.

  With reference to these drawings, the device comprises two objectives (1) and (2) with an angle greater than 180, with or without lenses (1 ') and (2') for straightening or correction, mounted in opposition on a support. rigid (3) and whose center

  optical is occupied by two CCD sensors (4) and (5).

  The assembly is fixed at the top of a telescopic hollow rod (6) adjustable in height to adapt the position of the lens to the environment. The interior of the

  rod contains the CCD power and image coding cables (7).

  The rod is itself fixed on the case of the recording device (8), (camera -2 photo or camera) or on an anchor plate. The device, relic by cable, can then be concealed. In general, but without obligation, the camera, or the mounting plate, will be perpendicular to the telescopic rod and

  parallel to the mounting of the objectives.

  In the embodiment according to FIG. 2, the objectives (1) and (2) wind couples with two prisms, (9) and (10), returning the two images perpendicularly on

a single CCD sensor, (415).

  In the embodiment according to FIG. 3, the objectives (1) and (2) are paired with two prisms, (9) and (10), returning the two images perpendicularly 0 in the telescopic rod (6) to a film ( 12), or a

  CCD sensor (4/5) through correction lens (s) (11).

  The device according to the invention can allow, at a lower cost, (a single camera) to completely monitor large areas, by suspending the device

in height for example.

  It can also be used to record a "total" film, in which the viewer, placed in place of the camera, in the center of a screen sphere, would have a complete view of the scene. It could also be used to videotape an overview of the scene of a crime, for the police arriving at the scene, or to confirm the interrogation.

  of a defendant, with his complete environment.

  One could also discreetly confirm (a single camera) all the angles of an event, for television or cinema, and to choose the rule. or the interesting angles. Miniaturized, medical imaging would be simplified in

endoscopy.

  The infrared or ultraviolet environment of a place could also be

checked in.

-3

Claims (4)

  1) Device making it possible to record, from a given point, the characteristics of the visible or invisible spectrum, of a place, in a foist II is characterized by two objectives (1) and (2), each simple or composed, each total angular greater than 180, the image of which is projected on a CCD sensor, (4) or (5), the two assemblies mounted back to back on a support (3) fixed on a telescopic tube (6), relic to the recording device: camera photo or film (8) by cables (7).   2) Device according to claim 1 characterized in that the optical center of the two objectives, or group of objectives (1) and (2), is occupied by two CCD sensors (4) and (5), back to back.   3) Device according to claim 1 characterized in that the optical center of the two objectives can be occupied by two prisms back to back (9) and (10) returning the two complementary images, either on a single CCD (4/5), either through the telescopic tube (6) and correction lenses (11), towards a   s paper film (12) or a single CCD sensor (4/5).   4) Device according to claim 1 characterized in that the tube (6) is adjustable in length.   ) Device according to claim 1 characterized in that the tube (6) can be fixed on the recording device (8), or on a plate of falble dimensions, the connection to the device (which can then be concealed) being made through