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        <identifier>oai:kougei.repo.nii.ac.jp:00002091</identifier>
        <datestamp>2023-06-20T13:37:36Z</datestamp>
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          <dc:title>光線光学と四元数</dc:title>
          <dc:title xml:lang="en">Ray Optics and Quaternion</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>川畑, 州一</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">カワバタ, シュウイチ</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Kawabata, Shuichi</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">四元数</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">しげんすう</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">光線光学</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">拡散光束</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Quaternion</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Ray Optics</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Divergent light beam</jpcoar:subject>
          <datacite:description descriptionType="Abstract">四元数(Quaternion) は1843年10月16日、IrelandのWilliam　Rowan　Hamiltonによって考案された、ベクトルに似た“数(number)”である。
四元数の代数（ Quaternion algebra）は、光線追跡においては大変有用な計算手法であるが、一般的には馴染みがなく、あまり知られてはいない。
本論文では、四元数が光線光学において、いかに便利であるかを具体的な例を挙げながら説明する。</datacite:description>
          <datacite:description descriptionType="Abstract">Quaternion was invented by William Rowan Hamilton in 1843. Quaternion is a number similar to vector. Although the quaternion algebra is very useful in Ray optics, it is not familiar to us. Quaternion and its algebra are introduced in the paper. And some applications of the quaternion algebra to the field of ray optics are shown.</datacite:description>
          <dc:publisher>東京工芸大学工学部</dc:publisher>
          <datacite:date dateType="Issued">2020-06-30</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_6501">departmental bulletin paper</dc:type>
          <jpcoar:identifier identifierType="URI">https://kougei.repo.nii.ac.jp/records/2091</jpcoar:identifier>
          <jpcoar:sourceIdentifier identifierType="ISSN">03876055</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>東京工芸大学工学部紀要</jpcoar:sourceTitle>
          <jpcoar:sourceTitle xml:lang="en">The Academic Reports, the Faculty of Engineering, Tokyo Polytechnic University</jpcoar:sourceTitle>
          <jpcoar:volume>43</jpcoar:volume>
          <jpcoar:issue>1</jpcoar:issue>
          <jpcoar:pageStart>29</jpcoar:pageStart>
          <jpcoar:pageEnd>34</jpcoar:pageEnd>
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            <datacite:date dateType="Available">2020-06-30</datacite:date>
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