FR2680914A1 - Infrared source - Google Patents

Infrared source Download PDF

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Publication number
FR2680914A1
FR2680914A1 FR9110649A FR9110649A FR2680914A1 FR 2680914 A1 FR2680914 A1 FR 2680914A1 FR 9110649 A FR9110649 A FR 9110649A FR 9110649 A FR9110649 A FR 9110649A FR 2680914 A1 FR2680914 A1 FR 2680914A1
Authority
FR
France
Prior art keywords
infrared
infrared source
ceramic
source
deposited
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR9110649A
Other languages
French (fr)
Other versions
FR2680914B1 (en
Inventor
Simeray Claude
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
REALISATIONS ELECTRONIQUE ET
Original Assignee
REALISATIONS ELECTRONIQUE ET
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by REALISATIONS ELECTRONIQUE ET filed Critical REALISATIONS ELECTRONIQUE ET
Priority to FR9110649A priority Critical patent/FR2680914B1/en
Publication of FR2680914A1 publication Critical patent/FR2680914A1/en
Application granted granted Critical
Publication of FR2680914B1 publication Critical patent/FR2680914B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G01K7/183—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer characterised by the use of the resistive element
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/011—Heaters using laterally extending conductive material as connecting means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/032—Heaters specially adapted for heating by radiation heating

Abstract

Infrared source emitting intense energy, having low thermal inertia and, more particularly, intended to be one of the two physical, coaxial sources of a collimator. The infrared source is made from a heating material (1) and from a conducting material (3) for leading in the electrical current, which are deposited on an insulating support (2), the said infrared source being pierced by a calibrated hole (6) at the centre of which the second emitting source is focused.

Description

L'invention conçerne une source infra-rouge qui trouve une application particulière comme l'une des deux sources physiques coaxiales d'un collimateur permettant de former une image à l'infini qui peut être vue par des appareils optiques travaillant dans le visible et l'infra-rouge. The invention conceives an infrared source which finds a particular application as one of the two coaxial physical sources of a collimator making it possible to form an image at infinity which can be seen by optical devices working in the visible and the 'infrared.

Notamment elle peut-être a source infra-rouge du collimateur décrit dans le brevet d'invention français déposé par la demandresse le 19 août 1987 sous le numéro d'enregistrement 87.11708 et publié sous le numéro 2 619 636.In particular, it may have an infrared source from the collimator described in the French invention patent filed by the applicant on August 19, 1987 under the registration number 87.11708 and published under the number 2 619 636.

Le but de la présente invention est de produire une source infra-rouge émettant une énergie intense dans le spectre concerné et présentant une faible inertie thermique, caractérisée en ce que la source est constituée d'une substance chauffante obtenue par le dépôt, sur une céramique, d'un matériau résistif formant l'émetteur qui rayonne dans l'infra-rouge lorsqu'il est traversé par un courant électrique et que l'amenée de ce courant électrique est faite à travers un matériau formant un conducteur, déposé sur la céramique de part et d'autre de l'émetteur et en contact avec ce dernier. The aim of the present invention is to produce an infrared source emitting intense energy in the spectrum concerned and having a low thermal inertia, characterized in that the source consists of a heating substance obtained by deposition, on a ceramic , of a resistive material forming the emitter which radiates in the infrared when it is crossed by an electric current and when the supply of this electric current is made through a material forming a conductor, deposited on the ceramic on both sides of the transmitter and in contact with it.

Suivant une particularité de l'invention, l'émetteur est un composé métallique - nickel chrome - déposé sur la céramique. According to a feature of the invention, the emitter is a metallic compound - nickel chrome - deposited on the ceramic.

Suivant une autre particularité de l'invention, le conducteur est un composé métallique - argent palladium - déposé sur la céramique, qui offre l'avantage de bien adhérer au dépôt émetteur et d'accepter le soudage à l'étain des fils le reliant à la source électrique. According to another particular feature of the invention, the conductor is a metallic compound - palladium silver - deposited on the ceramic, which offers the advantage of adhering well to the emitter deposit and of accepting the tin welding of the wires connecting it to the electrical source.

Suivant un autre mode de réalisation de l'invention, l'émetteur est percé d'un trou calibré, débouchant dans un plus grand alésage pratiqué dans la céramique pour permettre au rayonnement d'une seconde source, focalisée au centre dudit trou calibré, de traverser la source infra-rouge. According to another embodiment of the invention, the transmitter is pierced with a calibrated hole, opening into a larger bore made in the ceramic to allow radiation from a second source, focused in the center of said calibrated hole, to cross the infrared source.

Les particularités, caractéristiques et avantages de l'invention apparaîtront dans la description qui va suivre, en regard des dessins annexés, donnés à titre d'exemple non limitatif dont les figures représentent
- La figure 1, une vue de face de la source infra-rouge selon
l'invention;
- La figure 2, une vue de face de la source infra- rouge, selon
l'invention et pour un collimateur à double source.The features, characteristics and advantages of the invention will appear in the description which follows, with reference to the appended drawings, given by way of nonlimiting example, the figures of which represent
- Figure 1, a front view of the infrared source according to
the invention;
- Figure 2, a front view of the infrared source, according to
the invention and for a dual source collimator.

- La figure 3, une vue en coupe longitudinale de la source infra-rouge
selon la ligne AA de la figure 2. - Figure 3, a longitudinal sectional view of the infrared source
along line AA in Figure 2.

A la figure 1, la source infra-rouge comprend un émetteur infra-rouge 1, fait d'un matériau chauffant déposé de préférence au centre d'un support 2 qui isole thermiquement l'émetteur infra-rouge 1. In FIG. 1, the infrared source comprises an infrared emitter 1, made of a heating material preferably deposited in the center of a support 2 which thermally insulates the infrared emitter 1.

Le support 2 est une plaque de céramique en alumine ou en oxyde de zirconium par exemple. The support 2 is a ceramic plate made of alumina or zirconium oxide for example.

L'émetteur infra-rouge 1 est fait d'un matériau résistif qui est porté à une température de plusieurs centaines de degrés lorsqu'il est traversé par un courant électrique. Ce matériau qui a une résistivité élevée peut être un combiné métallique - nickel chrome - déposé sous vide
Pour amener le courant électrique à l'émetteur infra-rouge 1, un matériau formant un conducteur 3 est déposé sur le support 2 de part et d'autre de l'émetteur infra-rouge 1 et en contact avec ce dernier. Le matériau conducteur peut être avantageusement un combiné métallique - argent palladium -.The infrared emitter 1 is made of a resistive material which is brought to a temperature of several hundred degrees when it is crossed by an electric current. This material which has a high resistivity can be a metallic combination - nickel chrome - vacuum deposited
To bring the electric current to the infrared transmitter 1, a material forming a conductor 3 is deposited on the support 2 on either side of the infrared transmitter 1 and in contact with the latter. The conductive material can advantageously be a metallic combination - palladium silver -.

Le combiné - argent palladium - présente l'avantage de bien adhérer au combiné - nickel chrome- constituant l'émetteur 1 et de permettre de bien souder à l'étain, sur sa surface, les fils électriques 4 de liaison à la source électrique. The combined - palladium silver - has the advantage of adhering well to the combined - nickel chrome- constituting the emitter 1 and making it possible to solder well to the tin, on its surface, the electrical wires 4 for connection to the electrical source.

Deux rainures longitudinales 5, sont pratiquées de part et d'autre de l'émetteur infra-rouge 1 et traversent le support 2. Leur rôle est de limiter la conduction thermique au delà de la surface de l'émetteur 1. La puissance électrique à délivrer est ainsi limitée et l'inertie thermique de l'émetteur 1 est minimisée. Two longitudinal grooves 5 are formed on either side of the infrared emitter 1 and pass through the support 2. Their role is to limit the thermal conduction beyond the surface of the emitter 1. The electric power at delivery is thus limited and the thermal inertia of the emitter 1 is minimized.

Aux figures 2 et 3, l'émetteur infra-rouge 1 est percé d'un trou calibré 6 qui débouche dans un plus grand alésage évasé 7 pratiqué dans le support 2. In FIGS. 2 and 3, the infrared emitter 1 is pierced with a calibrated hole 6 which opens into a larger flared bore 7 made in the support 2.

Dans cette forme de réalisation, adaptée à un collimateur à double source, la seconde source sera focalisée au centre du trou calibré 6. In this embodiment, adapted to a dual source collimator, the second source will be focused at the center of the calibrated hole 6.

Aux figures 1 et 2, l'émetteur 1 est de forme carré, il peut être de forme différente et un cache non représenté au dessin placé devant cet émetteur permet de limiter et de calibrer sa surface rayonnante en fonction de son utilisation. In FIGS. 1 and 2, the emitter 1 is of square shape, it can be of different shape and a cover not shown in the drawing placed in front of this emitter makes it possible to limit and calibrate its radiating surface according to its use.

Il va de soi que sans sortir du cadre de l'invention, on peut apporter des modifications aux formes d'exécution qui viennent d'être décrites.  It goes without saying that without departing from the scope of the invention, modifications can be made to the embodiments which have just been described.

Claims (4)

-REVENDICATIONS- CLAIMS 1- Source infra-rouge émettant une énergie intense dans le spectre concerné1- Infrared source emitting intense energy in the spectrum concerned et présentant une faible inertie thermique, caractérisée par le fait que and having a low thermal inertia, characterized in that la source est constituée d'une substance chauffante obtenue par le the source consists of a heating substance obtained by the dépôt, sur une céramique, d'un matériau résistif formant l'émetteur qui deposit, on a ceramic, of a resistive material forming the emitter which rayonne dans l'infra-rouge lorsqu'il est traversé par un courant radiates in the infrared when it is crossed by a current électrique et que l'amenée de ce courant électrique est faite à travers electric and that the supply of this electric current is made through un matériau formant conducteur, déposé sur la céramique, de part et a conductive material, deposited on the ceramic, on both sides d'autre de l'émetteur et en contact avec ce dernier. on the other side of the transmitter and in contact with it. 2- Source infra-rouge selon la revendication 1, caractérisée par le fait2- infrared source according to claim 1, characterized in that que l'émetteur est percé d'un trou calibré débouchant dans un plus grand that the transmitter is pierced with a calibrated hole opening into a larger alésage pratiqué dans la céramique pour permettre au rayonnement d'une bore in the ceramic to allow the radiation of a seconde source focalisée au centre dudit trou calibré de traverser la second source focused at the center of said calibrated hole to cross the source infra-rouge. infrared source. 3- Source infra-rouge selon la revendication I ou 2, caractérisée par le3- infrared source according to claim I or 2, characterized by fait que l'émetteur est un composé métallique - nickel chrome - déposé makes the emitter a metallic compound - nickel chrome - deposited sur la céramique. on ceramic. 4- Source infra-rouge selon la revendication 3, caractérisée par le fait4- infrared source according to claim 3, characterized in that que le conducteur est un composé métallique -argent palladium - déposé that the conductor is a metallic compound - palladium silver - deposited sur la céramique.  on ceramic.
FR9110649A 1991-08-28 1991-08-28 INFRA RED SOURCE. Expired - Fee Related FR2680914B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9110649A FR2680914B1 (en) 1991-08-28 1991-08-28 INFRA RED SOURCE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9110649A FR2680914B1 (en) 1991-08-28 1991-08-28 INFRA RED SOURCE.

Publications (2)

Publication Number Publication Date
FR2680914A1 true FR2680914A1 (en) 1993-03-05
FR2680914B1 FR2680914B1 (en) 1997-03-21

Family

ID=9416411

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9110649A Expired - Fee Related FR2680914B1 (en) 1991-08-28 1991-08-28 INFRA RED SOURCE.

Country Status (1)

Country Link
FR (1) FR2680914B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694624A (en) * 1969-07-16 1972-09-26 Beckman Instruments Gmbh Infrared radiator arrangement
US3875413A (en) * 1973-10-09 1975-04-01 Hewlett Packard Co Infrared radiation source
US4378489A (en) * 1981-05-18 1983-03-29 Honeywell Inc. Miniature thin film infrared calibration source
FR2619636A1 (en) * 1987-08-19 1989-02-24 Realisa Electroniques Et Collimator
JPS6467887A (en) * 1987-09-07 1989-03-14 Yamada Kinzoku Boshoku Kk Member for far infrared ray heater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694624A (en) * 1969-07-16 1972-09-26 Beckman Instruments Gmbh Infrared radiator arrangement
US3875413A (en) * 1973-10-09 1975-04-01 Hewlett Packard Co Infrared radiation source
US4378489A (en) * 1981-05-18 1983-03-29 Honeywell Inc. Miniature thin film infrared calibration source
FR2619636A1 (en) * 1987-08-19 1989-02-24 Realisa Electroniques Et Collimator
JPS6467887A (en) * 1987-09-07 1989-03-14 Yamada Kinzoku Boshoku Kk Member for far infrared ray heater

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 280 (E-779)27 Juin 1989 & JP-A-1 067 887 ( YAMADA KINZOKU BOSHOKU ) *

Also Published As

Publication number Publication date
FR2680914B1 (en) 1997-03-21

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Effective date: 20090430