Abstract: A method of transferring an image recorded on a photographic film to a digital signal, using a film scanning device that generates scan data representative of the digital signal, comprises the steps of calibrating the film scanning device in relation to printing densities and scanning the photographic film with the film scanning device to produce scan data that represents printing densities. Inasmuch as the digital signal is used to drive a film recorder that exposes an output film that is subsequently printed onto a target print material, the scan data represents printing densities which when written out to the film recorder will produce printing densities of the output film onto the target print material that are identical to the printing densities of the same photographic film optically transferred onto the target print material.

Abstract: A method of transferring an image recorded on a photographic film to a digital signal, using a film scanning device that generates scan data representative of the digital signal, comprises the steps of calibrating the film scanning device in relation to printing densities and scanning the photographic film with the film scanning device to produce scan data that represents printing densities. Inasmuch as the digital signal is used to drive a film recorder that exposes an output film that is subsequently printed onto a target print material, the scan data represents printing densities which when written out to the film recorder will produce printing densities of the output film onto the target print material that are identical to the printing densities of the same photographic film optically transferred onto the target print material.

Abstract: A method of transferring a scene recorded on photographic negative film to video using a telecine is disclosed comprising the steps of:a) setting up the telecine so that predetermined waveform readings are obtained for a reference element comprising at least one gray scale portion comprising density patches corresponding to three known density values;b) storing the telecine set-up settings;c) loading a scene on photographic negative film into the telecine wherein the scene includes a gray card;d) using the stored telecine settings to effect transfer of the scene to video;e) determining red, green and blue video voltages for the gray card; andf) converting the red, green and blue video voltages to Transfer Points between 0 and 50 to provide exposure information for the scene.

Abstract: The present invention concerns a method for preparing earth alkaline metal borates.The method comprises the steps of forming a mixture of an earth-alkaline metal alkoxide and a boron alkoxide, of hydrolysing this mixture to form a metal-borate precursor, and then coating the precursor onto a substrate and thermally treating it to form an inorganic film on the substrate.The method is especially useful to prepare beta barium borate layers which can serve in non-linear optical devices to produce second harmonics generation.

Abstract: The invention relates to membranes for facilitated ion transport in aqueous solutions. The membrane is an adduct of a heteropolysiloxane and a crown-ether, and contains certain ions such as picrate or fluoroborate. This membrane is efficient for the selective transport of potassium ions.