Living pictures; their history, photoproduction and practical working. With a digest of British patents and annotated bibliography (1899)

Record Details:

Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

CHRONO-PnOTOaRAPHY. 61 =^ shutter being used the travel of which was far more rapid than that of the sensitised plate ; the latter only moving a short distance to its next position while the opaque part of the shutter made nearly a revolution before the single aperture passed the lens. This apparatus was called the Photophone, and its construction will be understood from the very similar projecting apparatus, Fig. 64, named the Phonoscope^ in which the major portion of the shutter is cut away in order to show the picture-disc. The origin of this name is found in the fact that M. Demeny used this instrument for securing a series of twenty-four photo- graphs of a man during the act of pronouncing some phrase, in order lo »K |^ analyse the lip-motions. ^i*-0 ^!!^_j The reconstitution of i^^-^^" 1 the lip-action was so successful that a deaf- mute was enabled to read the words " Vive la France" from the lips of a photograph. The set of pictures being sufficiently long to cover the whole period of utterance, an enthusiastic deaf-mute could pass the day experiencing (it is impossible to say " hearing") the above-mentioned patriotic sentiment. It is worthy of notice that even the intelligent specimen of humanity above referred to was absolutely nonplussed when the handle was turned backward, and the lip-motion con- sequently reversed. The Photophone was apparently the final example of the disc-form which took its origin in Janssen's Photographic Revolver. This apparatus Fig. 64.