Electrooptical apparatus
475,008. Copying-telegraphy. STANDARD TELEPHONES & CABLES, Ltd. Nov. 27, 1936, No. 32555. Convention date, Dec. 18, 1935. [Class 40 (iii)] A carrier modulated by image currents and accompanied by the image currents, and unaccompanied image currents are produced, and the two sets of currents are...
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description | 475,008. Copying-telegraphy. STANDARD TELEPHONES & CABLES, Ltd. Nov. 27, 1936, No. 32555. Convention date, Dec. 18, 1935. [Class 40 (iii)] A carrier modulated by image currents and accompanied by the image currents, and unaccompanied image currents are produced, and the two sets of currents are connected differentially. A light beam is modulated by the picture 1 and by a chopping-disc 9 and falls on a light-sensitive cell 12, and part of the light is deflected to a cell 13 by a semi-transparent mirror in front of the chopping - disc. The cells are . connected differentially to an amplifier 18, thus neutralizing unmodulated image currents. According to a modification, the cells are coupled respectively to co-planar grids in a four-electrode valve, Fig. 2 (not shown). |
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[Class 40 (iii)] A carrier modulated by image currents and accompanied by the image currents, and unaccompanied image currents are produced, and the two sets of currents are connected differentially. A light beam is modulated by the picture 1 and by a chopping-disc 9 and falls on a light-sensitive cell 12, and part of the light is deflected to a cell 13 by a semi-transparent mirror in front of the chopping - disc. The cells are . connected differentially to an amplifier 18, thus neutralizing unmodulated image currents. According to a modification, the cells are coupled respectively to co-planar grids in a four-electrode valve, Fig. 2 (not shown).</description><language>eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><creationdate>1938</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19380927&DB=EPODOC&CC=US&NR=2131715A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19380927&DB=EPODOC&CC=US&NR=2131715A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JR. MILLARD W. BALDWIN</creatorcontrib><title>Electrooptical apparatus</title><description>475,008. Copying-telegraphy. STANDARD TELEPHONES & CABLES, Ltd. Nov. 27, 1936, No. 32555. Convention date, Dec. 18, 1935. [Class 40 (iii)] A carrier modulated by image currents and accompanied by the image currents, and unaccompanied image currents are produced, and the two sets of currents are connected differentially. A light beam is modulated by the picture 1 and by a chopping-disc 9 and falls on a light-sensitive cell 12, and part of the light is deflected to a cell 13 by a semi-transparent mirror in front of the chopping - disc. The cells are . connected differentially to an amplifier 18, thus neutralizing unmodulated image currents. According to a modification, the cells are coupled respectively to co-planar grids in a four-electrode valve, Fig. 2 (not shown).</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1938</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBwzUlNLinKzy8oyUxOzFFILChILEosKS3mYWBNS8wpTuWF0twM8m6uIc4euqkF-fGpxQWJyal5qSXxocFGhsaG5oamjsaEVQAAnMQh_A</recordid><startdate>19380927</startdate><enddate>19380927</enddate><creator>JR. MILLARD W. BALDWIN</creator><scope>EVB</scope></search><sort><creationdate>19380927</creationdate><title>Electrooptical apparatus</title><author>JR. MILLARD W. BALDWIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2131715A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1938</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><toplevel>online_resources</toplevel><creatorcontrib>JR. MILLARD W. BALDWIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JR. MILLARD W. BALDWIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Electrooptical apparatus</title><date>1938-09-27</date><risdate>1938</risdate><abstract>475,008. Copying-telegraphy. STANDARD TELEPHONES & CABLES, Ltd. Nov. 27, 1936, No. 32555. Convention date, Dec. 18, 1935. [Class 40 (iii)] A carrier modulated by image currents and accompanied by the image currents, and unaccompanied image currents are produced, and the two sets of currents are connected differentially. A light beam is modulated by the picture 1 and by a chopping-disc 9 and falls on a light-sensitive cell 12, and part of the light is deflected to a cell 13 by a semi-transparent mirror in front of the chopping - disc. The cells are . connected differentially to an amplifier 18, thus neutralizing unmodulated image currents. According to a modification, the cells are coupled respectively to co-planar grids in a four-electrode valve, Fig. 2 (not shown).</abstract><oa>free_for_read</oa></addata></record> |
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subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION |
title | Electrooptical apparatus |
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