Abstract: Some embodiments are directed to a wide-field imaging system for the infrared spectral range. The system can include a vacuum chamber that is optically open for the passage of the field rays originating from the scene to be imaged, a cooled dark chamber placed inside the vacuum chamber and provided with a cold diaphragm, an infrared detector placed inside the cooled dark chamber, and a device for optically conjugating the field rays with the detector.

Abstract: Some embodiments are directed to a wide-field imaging system for the infrared spectral range. The system can include a vacuum chamber that is optically open for the passage of the field rays originating from the scene to be imaged, a cooled dark chamber placed inside the vacuum chamber and provided with a cold diaphragm, an infrared detector placed inside the cooled dark chamber, and a device for optically conjugating the field rays with the detector.

Abstract: According to one aspect, the invention relates to a microbolometer array for thermal detection of light radiation in a given spectral band, comprising a supporting substrate and an array of microbolometers (300) of given dimensions, arranged in an array. Each of said microbolometers comprises a membrane (301) suspended above said supporting substrate, said membrane consisting of an element (305) for absorbing the incident radiation and a thermometric element (304) in thermal contact with the absorber, electrically insulated from said absorber element. The absorber element comprises at least one first metal/insulator/metal (MIM) structure comprising a multilayer of three superposed films of submicron-order thickness i.e. a first metallic film (311), a dielectric film (310), and a second metallic film (309), said MIM structure being able to have a resonant absorption of said incident radiation at at least one wavelength in said spectral band.

Abstract: According to one aspect, the invention relates to a microbolometer array for thermal detection of light radiation in a given spectral band, comprising a supporting substrate and an array of microbolometers (300) of given dimensions, arranged in an array. Each of said microbolometers comprises a membrane (301) suspended above said supporting substrate, said membrane consisting of an element (305) for absorbing the incident radiation and a thermometric element (304) in thermal contact with the absorber, electrically insulated from said absorber element. The absorber element comprises at least one first metal/insulator/metal (MIM) structure comprising a multilayer of three superposed films of submicron-order thickness i.e. a first metallic film (311), a dielectric film (310), and a second metallic film (309), said MIM structure being able to have a resonant absorption of said incident radiation at at least one wavelength in said spectral band.

Abstract: The invention aims to integrate a two-wave stationary interferometer on a photodetector during fabrication in order to constitute a miniature stationary Fourier transform spectrometer. The interferometer essentially comprises a plate having a first plane face coinciding with an image plane on semiconductor photosensitive elements and a second face that is not parallel to the first face. The second face reflects a wave that has a phase difference relative to the incident wave interfering with it that is a function of the local thickness of the plate.

Abstract: The invention aims to integrate a two-wave stationary interferometer on a photodetector during fabrication in order to constitute a miniature stationary Fourier transform spectrometer. The interferometer essentially comprises a plate having a first plane face coinciding with an image plane on semiconductor photosensitive elements and a second face that is not parallel to the first face. The second face reflects a wave that has a phase difference relative to the incident wave interfering with it that is a function of the local thickness of the plate.

Abstract: An appliance includes a housing (1) containing a motor (2) whose output shaft (8) passes through the housing base (4) and drives in rotation a tool (16) housed in a bowl (9) locked on the housing and closed by a lid (12); and a safety device (25) having a vertical thruster (27) mounted sliding in the bowl (9) peripheral wall (30) and actuated by a cam (43) borne by the lid (12) so as to penetrate in an opening (39) provided in the base to be urged to actuate a switch controlling the motor. A rigid cover (49) is mounted on the base movable between an inoperative position wherein it conceals the base opening (39), when the bowl is not on the base (4), and an operative position wherein it clears the opening (39) by the action of an actuating member (51) borne by the bowl (9) when the latter is locked on the base (4).

Abstract: A press for food products adapted to be reduced to a puree, comprising a working bowl (12) closed by a removable cover (21) and enclosing a rotatable press tool (23) comprising a central vertical shaft (27) which carries at least one pressing blade (30) whose external edge extends toward the lateral wall of the bowl (12), and which is coupled in rotation to a drive shaft (19) of a motor group by means of a coupling device (38). The blade (30) is maintained in contact against a sieve (40) fixed under the action of a return spring (44) associated with the blade-carrying shaft (27) so as to effect, upon turning, the pressing and the passage of the food products through the sieve, and the assembly formed by the blade (30) and the shaft (27) which carries the blade (30) being moreover adapted, in the case in which the blade (30) encounters a hard body, to rise against the force of the return spring (44).

Abstract: A kitchen appliance, such as a mixer, has a housing (1) which has on its upper portion an annular seat (2) for reception of a removable bowl (3), and which encloses a motor (4) whose output shaft (5) projects from the seat. The bowl (3) has a removable bottom (6) constituted by a base of shape complementary to the seat (2) and whose central region bears a rotatable tool (7) integral with a shaft (7') traversing the base and adapted to couple with the output shaft (5) of the motor when the base is correctly mounted on the seat. The base (6) comprises at least one detent (16) which is movably mounted through the wall (12) of the base between a retracted position in which it permits positioning of the base on its seat (2) and thus the coupling of the tool (7) with the shaft (5) of the motor (4) and which position is reached when the bowl (3) is correctly secured on the base, and a projecting position in which it extends laterally of the base.