An optical projection reduction system used in photolithography for the manufacture of semiconductor devices having a first mirror pair (M1, M2; M1', M2'; M1'', M2''), a second field mirror pair (M3, M4; M3', M4'; M3'', M4''), and a third mirror pair (M5, M6; M5', M6'; M5'', M6''). Electromagnetic radiation form a reticle or mask (10) is reflected by a first mirror pair to a second field mirror pa...

The stereoscopic microscope makes use of a couple of lenses (1) with magnification 16x and of another couple of lenses (2) with magnification 10x. Both the said couples of lenses are supported into a disk-shaped drum (3) to be rotated of 90 DEG by means of a draw lever (4) to place the said couples of lenses in such a position that they can be used by the operator for the direct observation of th...

A hinge structure of a spectacle frame has bearings 21 formed at the ends of end-pieces 6 provided outside a pair of lenses 4 or outside rims 5 supporting the lenses. Pivotally rotatable shafts 11 at the tips of a pair of temple-pieces 1 are pivotably connected with the bearings. At one end of each bearing, a compressed elastic means 3 encircles a portion of the pivotable shaft exposed in a recess...

Silica-containing ceramic coatings are produced on substrates at low temperatures by applying a coating comprising a silica precursor on a substrate and heating the coated substrate under an environment comprising nitrous oxide at a temperature sufficient to convert the silica precursor to the silica-containing ceramic coating. This method is especially valuable for forming protective and dielectr...

Mono-noble metal dithiolates (I) of formula HS-Q(Z)(Y)-SX (A; X = Nm) are new. In the formulae, Nm = a noble metal selected from Au(I), Ag(I) or 1 equiv. of Pd(II), Pt(II) or Rh(III); Q = a tetravalent 2-10C organic gp.; Y = an hydrophilic gp. selected from -COOH, -COO<->Cat<+> or -COO-(CHR<1>-CHR<2>-O)mR<3>; Cat<+> = Li<+>, Na<+>, K<+>, NH4<+> or (1-3C (hydroxy)-alkyl)nN<+>H(4-n); n = 1,2,3 or 4;...

An insulating board on the basis of mineral wool bonded by a curable binding agent is characterised in that in between the mineral fibers of the minerals wool, non-metallic fibers (28) of a different kind are incorporated in at least one thickness area in an essentially homogeneous distribution, said fibers of a different kind having a greater average length and tensile strength than the mineral f...

A lubricant composition of suitable viscosity miscible in non-chlorinated, fluorinated hydrocarbon refrigerants includes polyhydric alcohol esters, such as TMP, mono and/or di-pentaerythritol esters, made with branched carboxylic acids.

The invention relates to equipment for the correction of astygmatism by modelling of the corneal surface by means of photo-ablation. A laser beam produced by an excimer laser is used, which is masked by a special mask (1) in such a way that, at each application, a pre-established surface of the cornea (3) is struck, from which cornea (3) a very thin uniform layer of tissue is removed. Two symmetic...

The present invention relates to a method for generating a three-dimensional image of a ground area by means of a radar with a synthetic aperture, a SAR radar, which is supported by a platform moving in an essentially rectilinear manner. The method is characterized by the following steps.Advancing the platform such that at least two images of the ground are created with great difference in the ang...

Optically active compounds of formula (I), where X has a structure (II) and B is C1-12 alkyl, a chiral group or a group having a general structure (III), where R and R' are H, C1-12 alkyl, alkoxy, alkylcarbonyloxy, or alkoxycarbonyl, each ring (IV) and (V) is the same or different, A and D are single bonds or bridging groups, each a and d is 0 or 1; Z, Z' are CN, Cl, F, Br or CF3; provided when Z ...

A method and apparatus for stimulating the right and/or left carotid sinus nerves or the right stellate ganglion or the epidural space at about T2 with continuous and/or phasic electrical pulses in response to detected myocardial ischemia to decrease cardiac workload as a method to protect the myocardium. The automatic detection of the need for such stimulation is responsive to a change in ST segm...

A length mode drop on demand type ink jet print head includes a lower body portion formed of an active piezoelectric material and an upper body formed from an inactive material. The lower body portion, which includes a plurality of longitudinally extending projections, is poled in a first direction generally orthogonal to both its longitudinal and vertical axes. The upper body portion also include...

Two articles (11, 12) are joined together with the aid of a gasket (3) comprising a laminar conductive polymer heating element (31). The gasket is placed between the articles and is heated by passing current through the heating element. Preferably, the articles are composed of a polymeric material and become fused to the heating element, or directly to each other through holes in the gasket. In a ...

A non-woven microfibre cloth is made from polyester fibres and polyurethane fibres and is particularly applicable as a synthetic suede for shoes and for upholstery because of its elastic properties. The cloth may comprise 70-95% polyester fibres and may be made by an islands in a sea technique. A woven elastic backing cloth made from cotton and elastomeric yarn may be laminated to the microfibre b...

PROBLEM TO BE SOLVED: To increase the coating rate of paste and reduce its loss by applying the transparent conductive film forming paste on a glass substrate by the roll coater printing method, then drying and baking it to form a transparent conductive film. SOLUTION: A glass substrate fed from a loader is washed by a washer and dried by a drier, and a transparent conductive film forming paste is...

A clock sent from a clock generator is subjected to frequency division by a plurality of frequency dividers responsible for different fractions of an input frequency. A switch selects and outputs any of the outputs of the plurality of frequency dividers, and thus varies the frequency of the clock within one horizontal scanning period. The clock is used to sample a video signal, whereby an image to...

This invention provides moisture stable tuftstring carpet assemblies. The pile surface structure comprises a moisture stable backing substrate, a plurality of elongated pile articles each comprising an elongated, moisture stable support strand having bonded thereto a plurality of "U" shaped bundles of multifilament yarn. The pile articles are bonded to the backing substrate. Different backing subs...

According to the invention, a monostatic FMCW radar sensor for a vehicle for detecting objects is proposed in which at least one antenna feed in combination with a dielectric lens is embodied for both transmitting and receiving a corresponding echo signal. At least one antenna feed is connected to a ring mixer via a ratrace ring or double ratrace ring, so that an expensive circulator can be dispen...

An oil reservoir chamber, a crank chamber and a valve-operating chamber are provided in an engine body. The oil reservoir chamber and the crank chamber are in communication with each other through a through-hole, and the crank chamber and the valve-operating chamber are in communication with the each other through a one-way valve which is opened upon rising of the pressure in the crank chamber. Th...

A method of forming an image is disclosed which comprises the steps of a) imagewise exposing a silver halide color photographic light sensitive material comprising a support and provided thereon, a photographic component layer comprising a light sensitive silver halide emulsion layer, the photographic component layer containing a compound represented by the following formula (I) or (II), b) color ...