摘要:
An energy converter according to the present invention includes a filament 11 for converting given energy into electromagnetic waves and radiating the waves, and a radiation suppressing portion for suppressing some of the electromagnetic waves (e.g., infrared rays), which have been radiated from the filament 11 and of which the wavelengths exceed a predetermined value. The radiation suppressing portion has a bundle 12 of fine wires 12a, of which the axial direction is aligned with a direction in which the electromagnetic waves propagate with their radiations suppressed.
摘要:
The invention relates to the field of lamps. An incandescent electric lamp comprises a bulb (100), current-conducting supply wires (103, 104), a filament (105) having turns (A to H) arranged in spiraling fashion around an axis of revolution (102), one end (105a) of the filament being connected to the conductor wire (103), a metal support (108) of which one end (108a) is connected to the conductor wire (104) and the other end (108b) is connected to the other end (105b) of the filament, and a metal bracket (109) which is in electrical contact with one of the ends or one of the turns of the filament and which comprises a substantially straight portion parallel to the axis of revolution of the filament and situated below the filament when the lamp is in its normal operating position. The metal bracket is, for example, at the potential of the end (105a). At the end of lamp life, the filament will sag and come into contact with the metal bracket (109), thus causing a short-circuit and a breaking of the filament, which prevents an explosion of the lamp.
摘要:
The present invention provides a lamp socket having a socket body with a lamp receiving portion and a back portion divided by a partition. The back side of the partition has a shelf and a recessed portion that extends inwardly relative to the shelf. The lamp socket also has at least one terminal in the socket body, the terminal has a lamp receiving end and a lead receiving end, and the lead receiving end is located in the back portion of the body. The lead receiving end extends from the shelf over the recessed portion. At least one wire lead is connected to the lead end of the terminal and the lead end is spaced outwardly from the partition. Potting material in the back portion of the socket to encapsulate the connection of the wire lead to the terminal. The potting material fills the recessed portion and the terminal fully encapsulating the connection point of the lead to the terminal.
摘要:
The invention is related to an electrically modulatable thermal radiant source with a multilayer structure. The radiant source includes a substrate, a first insulating layer formed onto the substrate, a radiant surface layer formed onto the first insulating layer, a second insulating layer formed on the radiant surface layer, a first metallization (incandescent filament) layer formed on the second insulating layer, a third insulating layer formed on the first metallization layer, and a second metallization layer for contacting formed on the third insulating layer. According to the invention, very thin incandescent filaments are formed from the first metallization layer and surrounded by the other elements of the multilayer structure as a uniform, planar plate.
摘要:
The electric lamp has a quartz glass lamp vessel (1) in the wall (2) of which metal foils (4) are embedded to which internal current conductors (5) and to a flat end portion (8) of which external current conductors (6) are connected. The end portions (8) are eccentrically flattened by means of stamps (20, 21) so as to have a plane (7) to which the center line (9) of the external current conductor (6) is substantially coincident. The occurrence of cracks and facture of the metal foils (4) is thereby counteracted.
摘要:
The invention relates to systems and methods for the manufacture of flexible printed wiring (FPW) harnesses of unlimited length three dimensions. In preferred embodiments, in-line raster scanning (e.g., xerography or laser printing) is used to image continuously updated conductor patterns on an uninterrupted (i.e., seamless) web-fed base material, or substrate With in-line manufacturing, an FPW harness equivalent to a discrete RWH of unlimited dimension can be fabricated. For example, the substrate can be cut to form circuit layout branches which are subsequently folded to produce three-dimensional shapes of unlimited size
摘要:
The electric lamp has a lamp vessel (1) having an end portion (3) which is fixed inthe lamp cap (5) by means of polyethersulphone (8) as a thermoplastic synthetic resin, which has adhered both to the lamp vessel and to the lamp cap. The end portion (3) has non-circular cross-sections where it is in contact with the synthetic resin (8) due to projections (10) projecting into the synthetic resin (8). A current supply wire (11) can be clamped between the synthetic resin (8) and the sheath portion (6) of the lamp cap (5) in order to establish electrical contact therewith. The lamp can be assembled by arranging in the hot state of the end portion (3) a polyethersulphone ring (8) around this end portion (3) and by providing the lamp cap (5) in the hot state around the polyethersulphone ring (8). FIG. 1.
摘要:
There is disclosed a technique for providing resynchronization for message reception in digital transmission systems, and particularly in digital frequency hopping systems employing data framing techniques. In the transmission of framed data using known digital techniques for frequency hopping systems, synchronization is provided in frames preceding the message frames transmitting digital data. In addition, resynchronization information is transmitted in subsequent frames which are interspersed with data frames including the message data. A predetermined number of frames is set to provide all the resynchronization information so that once those frames have been detected, a receiver will have acquired resynchronization during message transmission. This technique allows improved signal acquisition by providing an opportunity following the first conventional synchronization frame to acquire synchronization or to reacquire synchronization during message transmission.
摘要:
According to the invention an improved connector has a housing portion with a base for mounting on a printed circuit board, projecting mounting posts extend from the base, a conductive outer shell and a dielectric body are surrounded by the housing portion, a first conductive contact is carried by the dielectric body and projects from the outer shell and has a first contact portion projecting from the housing for insertion into a corresponding aperture of a printed circuit board, the outer shell has a second contact portion projecting from the housing for insertion into a corresponding aperture of a printed circuit board, the free ends of the mounting posts project outwardly further from the base of the housing than the free ends of the first and the second contact portions, and the connector is characterized in that; each mounting post has a taper toward the free end, and each contact portion has a taper toward the free end and with an apex of the taper that intersects a longitudinal edge of the corresponding contact portion and is aligned with a center line of a corresponding aperture of a printed circuit board.
摘要:
A digital signal of n-bit words N.sub.i is enciphered into an enciphered signal of n-bit words R.sub.i. In an enciphering unit, a logic circuit delivers each enciphered word R.sub.i through a logic operation g performed on the word N.sub.i and on an n-bit, stored, enciphering word P.sub.i-l. An addressing circuit formulates an address word A.sub.i-l having a bits fully or partly belonging at least to the preceding enciphered word R.sub.i-l. A memory of 2.sup.a predetermined P.sub.i-l words is read by each address word A.sub.i-l to supply a corresponding word P.sub.i-l to the logic circuit for it to perform the g operation such that R.sub.i =g(N.sub.i, P.sub.i-l). A deciphering unit receives the enciphered words R.sub.i for formulating the address words A.sub.i controlling reading of the corresponding words P.sub.i out of 2.sup.a stored words. Each deciphered word N.sub.i is obtained by a logic operation h, referred to as contrary to g, performed on the enciphered word R.sub.i and on the stored word P.sub.i-l, such that N=h(R.sub.i, P.sub.i-l). The memories can be programmed by a computer, which, as per a predetermined algorithm, computes a table of words P.sub.i for a given key.