Übersetzung für "Microfilm reader" in Deutsch

A microfilm reader of this type has a very simple design and can thus be of very sturdy construction.

A greenish-tinged black color image on a yellow background was seen through a film projector or in a microfilm reader.

One cut-off from each of these two full tone samples was then simultaneously exposed in a microfilm reader to the spectral emission of the light sources for 12 hours.

The light stability of this copy in the microfilm reader, however, is markedly lower than that of the film copy prepared with the compound according to the invention.

The reconstructed image could be viewed using a conventional slide projector or a microfilm reader, but it was also possible to discern the image even with visual observation in approximately vertically transmitted light.

Also this advantage does not depend on the unit construction but as in the case of the microfilm reader is independent on whether the projection head is fast on the post or is interchangably attached to the post.

It is a general object of this invention to provide an objective lens exchanging arrangement in a microfilm reader, which makes possible to exchange the objective lens in a simple and rapid manner.

Such a microfilm card can be used like ordinary film cards in a microfilm reader or in an enlarger for enlarging the drawing, but it can also be used for reading computer-compatible data back into a CAD drawing system by means of a scanner.

In the prior art, there is known a microfilm reader which has an upper portion on whose bottom side a double lens carrier is slidably arranged above the micrograph to be projected.

A microfilm reader of this type is especially sturdy, since the lighting unit and the lens holder are capable of being guided independently of each other on straight guides.

On viewing in the film projector or in a microfilm reader, a greenish-tinged blue color image on a yellow background is seen, but its contrast and legibility are inferior to that obtained when using the blue coupler according to the invention.

In the representation of the road map or an excerpt with the microfilm reader, the picture memory comprises a microfilm magazine, while contrarily if still pictures are represented, these are conceivable in the form of a video cassette or compact disc.

This invention relates to a cross-slide guide, and in particular, this invention relates to a cross-slide guide for microfilm reader in which the slides located on sliding pads can be transversed on at least one guide rail on which they are supported.

The advantage of rolling friction rests with the fact that the expenditureof force required is lower than with sliding friction. This advantage, however, often turns into a disadvantage in case of a microfilm reader with a greater magnification ratio, since the film holder responds too sensitively, resulting in the frame beginning to slightly bounce on the film holder.

Here our heroes get their basic equipment, can read information about documents from the world-wide first microfilm reader (naturally invented by Artemus Gordon) or recall information spoken by his colleague from tone cylinders in each case.

This "pick-up effect" can be obtained with a small design expenditure, since in a microfilm reader, for example, the film card magazine need only be provided at an inclined angle in relation to the film card holder. The gap, such as brought about by the invention, widening towards one side is very advantageous when provision is to be made of sensors for monitoring the transition area, since these sensors can be held by a support, the cross-section of which increases as a function of the increasing bending moment, this support being located at the wider side of the gap.

With microfilm readers having a plurality of lenses, the latter are normally mounted pivotably, so that the lens desired for one given application can be swivelled into alignment in relation to the lighting unit.

In 1996, Image Access took over the production from MAP in Gießen, Germany. This was the move toward developing hardware components for the manufacturers of microfilm readers, microfilm copiers and microfilm scanners.