{
"$schema": "/api/schemas/documents.schema.json",
"apiVersion": "1.0.0",
"generatedAt": "2026-06-17T23:49:39.838Z",
"sourcePath": "src/main/data/docs",
"docId": "10.5594-J10256",
"document": {
"abbrevTitle": "Trans. SMPE",
"abbrevTitle$meta": {
"confidence": "high",
"note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07302015 IBP DEPOSITS/Journal-256-Issues/smptej_11_30/MIJR15Vol11No30.xml)",
"source": "parsed",
"updated": "2026-06-16T18:14:32.753Z",
"version": "smpte-journal-issue-xml@v1"
},
"abstract": "In a previous communication1 the use of panchromatic film for motion picture purposes was discussed at some length. The fundamental principles involved in the photographic reproduction of the tonal scale, that is brightness and brightness differences, in the case of colored objects were outlined and attention called to some of the advantages arising from the use of panchromatic film for this purpose. The use of light filters was mentioned briefly but no attempt was made to deal with this subject in detail. Since a thorough understanding of the nature of light filters and their use for obtaining a desired effect is essential to the attainment of the best results in the application of panchronlatic film to various problems confronting the photographic worker, it seems desirable at this time to present a somewhat more complete and detailed treatment of the subject. Believing firmly in the premise that the nearest approach to perfection in the practice of a science can be attained with greatest facility and certainty through an adequate knowledge of the theoretical aspects of the subject, the first part of this paper will be devoted to a discussion of some of the fundamental principles involved in the use of light filters. In the latter part the more practical phases of the subject will be dealt with and some data relative to the use of light filters will be given.",
"abstract$meta": {
"confidence": "high",
"note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07302015 IBP DEPOSITS/Journal-256-Issues/smptej_11_30/MIJR15Vol11No30.xml)",
"source": "parsed",
"updated": "2026-06-16T18:14:32.753Z",
"version": "smpte-journal-issue-xml@v1"
},
"articleType": "research-article",
"articleType$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"authors": [
"Loyd A. Jones"
],
"authors$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"copyright": {
"holder": "Society of Motion Picture and Television Engineers, Inc.",
"holder$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"year": "1927",
"year$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
}
},
"copyright$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"docId": "10.5594-J10256",
"docId$meta": {
"confidence": "high",
"note": "Derived from DOI 10.5594/J10256",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"docLabel": "Transactions of the Society of Motion Picture Engineers ( Volume: 11, Issue: 30, August 1927)",
"docLabel$meta": {
"confidence": "medium",
"note": "Composed from venue title, volume/issue and date",
"source": "inferred",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"docTitle": "Light Filters, their Characteristics and Applications in Photography",
"docTitle$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"docType": "Journal Article",
"docType$meta": {
"confidence": "high",
"note": "NLM — SMPTE journal paper",
"source": "inferred",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"doi": "10.5594/J10256",
"doi$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"href": "https://doi.org/10.5594/J10256",
"href$meta": {
"confidence": "high",
"note": "Constructed from DOI 10.5594/J10256",
"source": "inferred",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"issn": {
"print": "0096-6460",
"print$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
}
},
"issn$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"journalAcronym": "MIJR",
"journalAcronym$meta": {
"confidence": "high",
"note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07302015 IBP DEPOSITS/Journal-256-Issues/smptej_11_30/MIJR15Vol11No30.xml)",
"source": "parsed",
"updated": "2026-06-16T18:14:32.753Z",
"version": "smpte-journal-issue-xml@v1"
},
"number": "30",
"number$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"pages": "135–181",
"pages$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"publicationDate": "1927-08-01",
"publicationDate$meta": {
"confidence": "high",
"note": "Day absent in NLM source — padded to 01",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"publisher": "SMPTE",
"publisher$meta": {
"confidence": "high",
"note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)",
"source": "inferred",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"publisherLocation": {
"city": "White Plains, NY",
"city$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"country": "USA",
"country$meta": {
"confidence": "high",
"note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07302015 IBP DEPOSITS/Journal-256-Issues/smptej_11_30/MIJR15Vol11No30.xml)",
"source": "parsed",
"updated": "2026-06-16T18:14:32.753Z",
"version": "smpte-journal-issue-xml@v1"
}
},
"publisherLocation$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
},
"status": {
"active": true,
"active$meta": {
"confidence": "medium",
"note": "No explicit status in NLM source — journal papers default active",
"source": "inferred",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
}
},
"volume": "11",
"volume$meta": {
"confidence": "high",
"note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J10256.xml)",
"source": "parsed",
"updated": "2026-05-22T20:40:11.684Z",
"version": "smpte-journal-article-nlm@v1"
}
}
}