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公开(公告)号：FR2492162A1
公开(公告)日：1982-04-16
申请号：FR8021945
申请日：1980-10-14
Applicant: THOMSON CSF
Inventor： RAVERDY YVAN , VERON SERGE
Abstract: The tube allows the ambient temp. of the target to be controlled and stabilised in the range 40 to 60 degrees C. With this facility, a range of pyro-electric materials can be used at maximum sensitivity. Similar or greater sensitivity can be obtained with materials such as deuterated tri-glycine sulphate and tri-glycine fluoroberrylate held at their optimum temps. than is achieved with the commonly used tri-glycine sulphate. An insulated heating element is double-wound on a cylindrical electrode which serves to sweep and concentrate the electron beam. A metal sheath conducts heat to a field grid adjacent to the target. The target temp. distribution can be adjusted by the presence of a number of high-emissivity coating strips and a high degree of uniformity achieved. The internal face of the partition electrode is covered by a high thermal emissivity material.
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公开(公告)号：DE2752679A1
公开(公告)日：1978-06-01
申请号：DE2752679
申请日：1977-11-25
Applicant: THOMSON CSF
Inventor： MOIROUD GUY , VERON SERGE
Abstract: A method and a device for analyzing a pyroelectric target in an evacuated envelope. The target with two opposite faces has a first face disposed towards a zone of the envelope which is transparent to an incident radiation. The second face is orientated towards an electron gun generating device which operates at least one electron beam. A first scanning of the pyroelectric target with a high intensity low resolution electron beam allows a stage of neutralization of the electron charges induced in the target by the incident radiation. The stage of neutralization is to be considered as effecting a storage of the signal recorded on the target. A second scanning of the pyroelectric target with an electron beam of high resolution and low intensity corresponds to a stage of read-out proper of the target. The device is provided, on the one hand, with circuits for the control of the intensity of emission of the electron beam and, on the other hand, with circuits for the control of the voltage applied to the pyroelectric target, positive boosts of potentials being applied to the target during the stage of neutralization and read out proper. A common control circuit controlled by a synchronization signal representing the emission recurrences signals of the incident radiation controls the circuits for the control of the intensity of emission of the electron beam and the circuit for the control of the voltage applied to the target.
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公开(公告)号：DE1197990B
公开(公告)日：1965-08-05
申请号：DEC0025792
申请日：1961-12-20
Applicant: CSF
Inventor： CHARLES DANIEL , VERON SERGE
Abstract: 931,384. Discharge tubes. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE FIL. Dec. 13, 1961 [Dec. 21, 1960], No. 44595/61. Class 39 (1). A photo-cathode structure 1, e.g. for use in a cathode-ray tube 11, itself comprises a gaseous discharge tube, the gaseous discharge exciting either directly or through a fluorescent coating applied to the inner wall of the container, the photo-emissive coating 8 provided on the front surface of an, e.g. glass, window 3. The photo-emissive coating is deposited on a thin transparent conductive film. The gaseous discharge, which may be pulsed, is set up between the wall of the container and a metal rod electrode 5 traversing a glass or ceramic wall 4. The gas filling may be argon, neon or hydrogen at 10 -3 mm. Hg.
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公开(公告)号：FR2315764A1
公开(公告)日：1977-01-21
申请号：FR7520397
申请日：1975-06-27
Applicant: THOMSON CSF
Inventor： FELIX PIERRE , GAMOT PHILIPPE , MOIROUD GUY , VERON SERGE
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公开(公告)号：DE2518550A1
公开(公告)日：1975-10-30
申请号：DE2518550
申请日：1975-04-25
Applicant: THOMSON CSF
Inventor： VERON SERGE
Abstract: A pyroelectric radiation detector which is relatively immune to the effects of microphonic vibrations includes within an evacuated envelope a triglycine sulphate (TGS) target secured by silicone grease to a thin (3-6 mu M) mica support plate. The mica support plate is adhesively secured by means of an enamel to a titanium annulus which, in turn, is epoxied to the window of the evacuated envelope. The coefficients of expansion of the annulus and the support plate are selected such that after they are joined on to the other the support plate is stretched tightly across the annulus and therefore has a natural period substantially higher than the natural period of the annulus which supports it.
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Patent Agency Ranking
公开(公告)号：FR2336792A1
公开(公告)日：1977-07-22
申请号：FR7539525
申请日：1975-12-23
Applicant: THOMSON CSF
Inventor： FELIX PIERRE , VERON SERGE
Abstract: A potential compensating device for resistive sensors of pyroelectric tubes uses an ionic effect. The sensors are swept by a beam of electrons emitted by the cathode of the tube. The sensor then has a front face at an electric potential different from the potential of its back face. The back face potential varies according to the intensity of thermal rays received. The front face of the sensor is bombarded by ions which result from collisions between gas molecules and beam electrons. The ions then raise the potential of points of the front face of the sensor. The compensating bombardment is carried out during a phase different from the measuring phase. The measuring phases and the compensating phases alternate during operation of the tube. The device enables the back face of the sensor to be at a higher potential than the one obtained without its use.
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公开(公告)号：DE2628474A1
公开(公告)日：1976-12-30
申请号：DE2628474
申请日：1976-06-25
Applicant: THOMSON CSF
Inventor： FELIX PIERRE , GAMOT PHILIPPE , MOIROUD GUY , VERON SERGE
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公开(公告)号：FR2492160A1
公开(公告)日：1982-04-16
申请号：FR8021943
申请日：1980-10-14
Applicant: THOMSON CSF
Inventor： RAVERDY YVAN , VERON SERGE
Abstract: In order to facilitate the preparation of the reticular pyroelectric target and to improve the mechanical strength thereof, it is provided to connect together the elements of the mosaic, separated by gaps, by means of junction arms small in section with respect to said elements, and rising up to a certain height from the base thereof. These ramifications protect the electric connection between elements provided by the underlying conducting layer, during elaboration thereof; they reinforce the rigidity of the assembly.
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公开(公告)号：FR2372507A1
公开(公告)日：1978-06-23
申请号：FR7635750
申请日：1976-11-26
Applicant: THOMSON CSF
Inventor： MOIROUD GUY , VERON SERGE
Abstract: A method and a device for analyzing a pyroelectric target in an evacuated envelope. The target with two opposite faces has a first face disposed towards a zone of the envelope which is transparent to an incident radiation. The second face is orientated towards an electron gun generating device which operates at least one electron beam. A first scanning of the pyroelectric target with a high intensity low resolution electron beam allows a stage of neutralization of the electron charges induced in the target by the incident radiation. The stage of neutralization is to be considered as effecting a storage of the signal recorded on the target. A second scanning of the pyroelectric target with an electron beam of high resolution and low intensity corresponds to a stage of read-out proper of the target. The device is provided, on the one hand, with circuits for the control of the intensity of emission of the electron beam and, on the other hand, with circuits for the control of the voltage applied to the pyroelectric target, positive boosts of potentials being applied to the target during the stage of neutralization and read out proper. A common control circuit controlled by a synchronization signal representing the emission recurrences signals of the incident radiation controls the circuits for the control of the intensity of emission of the electron beam and the circuit for the control of the voltage applied to the target.
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公开(公告)号：DE2223288A1
公开(公告)日：1972-11-30
申请号：DE2223288
申请日：1972-05-12
Applicant: THOMSON CSF
Inventor： LE CARVENNEC FRANCOIS , VERON SERGE
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