摘要:
Dye compositions useful as inks for the inkjet and sublimation transfer printing processes comprise, based on the weight of the composition, from 0.1 to 30 wt % of one or more dyes selected from the class of the anthraquinones or quinophthalones which are free from ionic groups, from 0.1 to 20 wt % of a dispersant based on an arylsulfonic acid-formaldehyde condensation product and, optionally, water.
摘要:
Chemically modified proteins obtainable by reacting casein, collagen, gelatin, albumin or mixtures thereof(a) with 0.5 to 15% by weight of chlorine or of a compound which liberates chlorine under the reaction conditions, in an aqueous medium at a pH of from 0 to 7 or(b) with 0.5 to 50% by weight of a non-aromatic mono- or disulfonic acid which contains in its organic radical one or more groups or structural features which react with nucleophiles, in an aqueous medium at a pH of from 6 to 14,are used as dispersants in colorant formulations.
摘要:
A microscope is disclosed having an illumination device that includes a color temperature regulating device and a color temperature measurement device. The color temperature regulating device includes a light guide and two conversion filters that are disposed on a carrier and are adjustable in a motor-driven manner. Moreover, a color temperature control device is provided, which compares the color temperature determined in the measurement device with a predetermined theoretical value and supplies a corresponding signal to the color temperature regulating device. Furthermore, a measurement or regulating device for the intensity of illumination or light intensity is provided, which compensates the change of light intensity by a motor-controllable diaphragm in the illumination beam path.
摘要:
Liquid phosphate-free single phase degreasing compositions for aluminum surfaces containing one or more builders, sequestrants and surfactants in aqueous alkaline solution, particularly containing alkali metal and/or ammonium carbonate, alkali metal and/or ammonium hydrogen carbonate, one or more acrylic polymers, optionally one or more other complexing agents which complement or partly replace the acrylic polymers, one or more anionic or nonionic surfactants, optionally other active substances and/or auxiliaries of the type normally used in degreasing compositions and water.
摘要:
An attachment camera for microscopes, comprising an apparatus for measuring the brightness of an object detail and markings for sighting at least the detail metering field and the image field of the camera in the observation beam. The metering field markings and the image field markings are located on two separate plates, the plate with the metering field marking is defined by a measuring field stop. The two markings differ in size and shape and are simultaneously reflected into the observation beam by means of a photographic ocular located in the picture taking beam and by means of optical components with partly or fully reflecting surfaces located before or after the photographic ocular.A holder (5a) seating in exchangeable manner the photographic ocular (5) is provided between the housing (24) of the attachment-camera and the binocular tube (25).
摘要:
Exposure measuring system for attachment cameras to microscopes provided with a focusing telescope which is provided with a transverse slot for the selective insertion of two sliders, one of which is provided at the approximate slider center with a photodetector for the exposure measuring system while the other consists of a transparent plate which bears a marking of circular shape or the like also approximately at the center of the slider and corresponding in size to that of the photodetector. The slot possibly serves only for the introduction of a single slider bearing both the photodetector and the marking a given distance apart and is correspondingly displaceable between two positions. The guide path (10) of the slider(s) (9) is displaceable in the plane of the slider and means (16) actuated from outside the focusing telescope are provided to cause slider displacement.
摘要:
Microscope-attachment camera with a system for measuring the brightness of an object detail and with markings for indicating at least the detail metering-field and the image-field of the camera in the observation beam. The metering field-marking (14) and the image field-marking (22) are positioned on two separate plates, the metering field-marking plate being designed as a metering field-stop (14), and the two markings which differ in shape and size (14,22) are simultaneously reflected into the observation beam.
摘要:
A process for photographing microscopic objects with consideration of exposure time values to be determined and for making visible a spatially variable measurement spot and an exposure format making before and after the exposure is indicated, which process proceeds according to the process steps which are prescribed in accordance with the claims. In addition to this, a microphotographic device for carrying out the process or processes, having a microscope tube with return mirror device and a photographic eyepiece, downstream of which there are disposed a device for measuring the brightness of an object detail as well as markings to make visible at least one detail measurement field and the image field of a camera in the observation beam path, the detail measurement field being adjustably constructed in the functional plane, which is a plane conjugate with the eyepiece intermediate image, in the region associated with the entire image field, and the detail measurement diaphragm being disposed in a first illumination beam path, as well as a carrier containing the image field marking being disposed in a second illumination beam path, and a first beam splitter combining the two illumination partial beam paths being provided, and a second beam splitter being disposed between the camera shutter and the eyepiece optical system of the microscope, in such a manner that the images, transmitted by the combined illumiation partial beam paths, of the detail measurement diaphragm and of the image field marking are reflected into the eyepiece intermediate image plane in a superposed manner, is described, graphically represented and claimed.
摘要:
Detergents on the basis of anionic and nonionic surfactants contain as laundering power-enhancing additives an aliphatic amine compound which is selected such that its pK.sub.b value is at least equal to 14, minus the initial pH value of a 1% aqueous solution of the detergent containing the amine compound. Laundering power-enhancing amine compounds selected according to the rule mentioned are certain ether amines, amidoamines, glucamine derivatives or morpholine derivatives.
摘要:
Processes for the introduction, visualization and/or recording of a variable detail metering field stop into part ray paths of a camera for optical instruments, for example microscopes, are described. In addition, appropriate devices are specified. They contain a reversibly illuminable multifield matrix (4), which is provided, at a fixed location, in a plane which is conjugated with the eyepiece intermediate image plane of the optical instrument. The multifield matrix (4) is activated by a processor (22) in such a fashion that the transmission characteristics of the entire multifield matrix (4), or of at least one geometrical subregion of this matrix, are altered spontaneously reversibly, the following process steps being carried out: an object (3) is imaged on the multifield matrix (4); all fields of the multifield matrix (4) are cleared one after the other while simultaneously measuring the light passing through each cleared field; the measured values obtained are fed to a computer (23); the individual measured brightness signals are evaluated by the computer (23) and the measured values of those fields which feature object image structures are stored; all fields of the multifield matrix (4) which feature object image structures are cleared by the processor (22); the ideal exposure time is determined by the computer (23); the time values determined by the computer (23) are passed on to the camera shutter 7, which then carries out its function in a known fashion.