摘要:
Focusing system of the light beam for a videoprojector comprising at least an image microforming device DMD (Digital Micromirror Device); the main feature of the system consisting in that it comprises at least an aspheric lens associated to at least an achromatic doublet. This configuration allows a substantial reduction of chromatic aberration, spherical aberration, curvature of field and the distortions, obtaining a more homogeneous illumination of the image microforming device.
摘要:
Disclosed herein is a centralized power reducing device, particularly for lighting installations, comprising, on each phase of the installation power source, a winding (16) in series with load (10), wound on a magnetic core (18), the current supplied to load (10) flowing therethrough, a second winding (20) wound on said magnetic core (18), a drive or control current flowing therethrough, means (22, 24) for changing said drive or control current and characterized in that said means (22, 24) for establishing the extent of the drive or control current in said second winding (20) are comprised of a multiple-tap autotransformer (22), the connection of said autotransformer (22) taps occuring by means of relays (24) controlled by a logic unit (26).
摘要:
There are described a method and a system for the transmission/reception or communication of data and/or information on electric line between two electronic control devices, including: an electric user (HA), in particular a household appliance, having a first electronic control system asnd at least a first electric load; a monitoring or control device (SA), having a second electronic control system, said device (SA) being located on said line between an electric power source and said first electric load. According to the invention, the transmission/reception or communication of data and/or information on said line is realized by means of an electric power modulation between said user (HA) and said device (SA), and/or vice-versa.
摘要:
Washing agent dispenser for a household washing machine, namely a dishwasher, which dispenser has a body (2) delimiting at least a recess (3) for containing a certain amount of washing agent, comprising occlusion means (4, 5) for said recess (3). According to the invention, said occlusion means (4, 5) are capable of taking at least two different operating conditions for a partial opening of said recess (3), one for loading said amount of washing agent, the other for its subsequent dispensing.
摘要:
Method and device for decoding with error correction of a cyclic code signal r(x) containing a main error burst shorter than or equal to a number n and a secondary error shorter than or equal to a number k where k
摘要:
A device is described, for monitoring a household electric user (COT, LB, AU), in particular a household appliance, presenting an electric load, where said monitoring device (AI) is connected between a source of electric energy (PDC) and said electric load, said monitoring device (AI) comprising measuring means (A) for detecting the quantity of electric power or current absorbed by said user (COT, AL, AU), characterized in that said monitoring device (AI) comprises control means (SC), which are programmed for: comparing the absorption of electric power ou current measured through said measuring means (A) with reference values of electric power or current, which are stored within said control means; generating, in function of said comparison, information which being representative of the present status or phase of operation of said electric user (COT, LB, AU); allowing said information to be read from outside said device (AI).
摘要:
A direct injection system for internal combustion engines, which system comprises means (19) for pumping fuel at a first pressure (P0) from a tank (18), electric driven injection means (11) directly associated to relevant combustion chambers (17), means (13) for applying a second pressure (P1) to the fuel supplied to said injection means (11), said second pressure (P1) being much higher than said first pressure (P0) and substantially prevailing with respect to a third pressure (P2) available in the combustion chamber (17), said means (13) for applying said second pressure (P1) to the fuel being located upstream the injection means (11). According to the present invention, means (12) are provided for takin g the third pressure (P2) available in the combustion chamber (17) and transmit it to means (21) for amplifying the third pressure (P2), which are comprised in the means (13) for applying the second pressure (P1), in order to generate said second pressure (P1).
摘要:
The present industrial invention concerns a system for the distribution in a condominium and/or community environment of a plurality of television signals, and/or audio signals, and/or digital audio and/or video signals transmitted with different standards. According to the invention, one or more digital signals can be received by a single user of the system by means of a frequency conversion into a predetermined channel, which can be accessed by said user only. The digital signal being present in said channel always has the same modulation and can be selected by said user through control means which send a control signal to selection means.