Translation on Find a Grave is an ongoing project. As a result of his precision optical instruments, Bavaria overtook England as the center of the optics industry. ). In 1812–1814 Fraunhofer was fully engaged in the design ofachromatic objective lenses for telescopes, which required the accurate determination of refractive indices ofoptical glasses. Also an additional 2 volunteers within fifty miles. Use the links under “See more…” to quickly search for other people with the same last name in the same cemetery, city, county, etc. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 7 0 R] /MediaBox[ 0 0 595.32 841.92] /Contents 4 0 R/Group<>/Tabs/S>> In 1821 Fraunhofer built the first diffraction grating, comprised of 260 close parallel wires. This memorial has been copied to your clipboard. Are you sure that you want to delete this photo? endobj We use cookies to understand how you use our site and to improve your experience. The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative In 1821 he developed a diffraction grating. Fraunhofer, Joseph von, 1787-1826. In 1806 he went to the Institute at Benediktbeuren, a secularized Benedictine monastery in Benediktbeuren, Bavaria that specialized in glassmaking., where he soon discovered how to make the world's finest optical glass and would invent precise methods for measuring dispersion. Please contact Find a Grave at [email protected] if you need help resetting your password. All photos appear on this tab and here you can update the sort order of photos on memorials you manage. Are you sure that you want to delete this memorial? Joseph Fraunhofer, seit 1824 Ritter von Fraunhofer, (* 6. Use, Smithsonian Please note: You are asking volunteers to find and take a photo of the headstone. His work in optics earned him an honorary doctorate from the University of Erlangen in 1822 and in 1824 he was ennobled as Joseph von Fraunhofer and awarded the Merit Order of the Bavarian Crown, making him an honorary citizen Of Munich, in Bavaria. Zijn grootste bekendheid heeft hij te danken aan zijn onderzoek van vaste absorptielijnen in het zonnespectrum, die naar hem ook wel fraunhoferlijnen worden genoemd. Figure 1- Joseph von Fraunhofer (1787-1826) (left) and Friedrich Georg Wilhelm Struve (1793-1864) (right). Examining the spectrum of solar light passing through a thin slit, he noticed a multitude of dark lines. We have 2 volunteers within ten miles of your requested photo location. Previously sponsored memorials or famous memorials will not have this option. Close this window, and upload the photo(s) again. GREAT NEWS! He did not receive the luxury of a formal education, but was apprenticed to a Joseph von FRAUNHOFER (1787 - 1826) von Unbekannt [Public domain], via Wikimedia Commons Josef von FRAUNHOFER wurde 1787 als 11. You may not upload any more photos to this memorial, This photo was not uploaded because this memorial already has 20 photos, This photo was not uploaded because you have already uploaded 5 photos to this memorial, This photo was not uploaded because this memorial already has 30 photos, This photo was not uploaded because you have already uploaded 20 photos to this memorial. %���� The rescue operation was led by Maximilian IV Joseph, the Prince Elector of Bavaria (the future King Maximilian Joseph I), who provided him with books and forced his harsh employer to give him time to study. You have chosen this person to be their own family member. Fraunhofer did succeed, in 1817, in designing an achromatic objective lense; with minor modifications, his design is still in use today. Please enter your email address and we will send you an email with a reset password code. Joseph von Fraunhofer (Straubing, 6 maart 1787 - München, 7 juni 1826) was een Duits natuur- en werktuigkundige. Please complete the captcha to let us know you are a real person. Thank you for fulfilling this photo request. Joseph von Fraunhofer (1787-1826) German optical physicist – Joseph von Fraunhofer was born in Straubing (independent city in Lower Bavaria, southern Germany) on March 6th, 1787 and died in Munich (capital city of Bavaria, Germany) on June 7th, 1826 at the age of 39. To add a flower, click the “Leave a Flower” button. You are only allowed to leave one flower per day for any given memorial. stream Although he did notice and comment upon the wave length coincidence between his D line and a prominent line in laboratory flame spectrum (now known to be due to Sodium), he did not pursue the matter much further. Fraunhofer is also known for his investigation of diffraction of light in systems with small Fresnel number , now called Fraunhofer diffraction in his honor. GREAT NEWS! For memorials with more than one photo, additional photos will appear here or on the photos tab. SNAC is a discovery service for persons, families, and organizations found within archival collections at cultural heritage institutions. We have a volunteer within ten miles of your requested photo location. Fraunhofer, Joseph von (1787-1826) German physicist who investigated the spectrum of the sun and discovered the dark line spectrum (now known as Fraunhofer lines) in 1814. Find a Grave, database and images (https://www.findagrave.com: accessed ), memorial page for Josef von Fraunhofer (6 Mar 1787–7 Jun 1826), Find a Grave Memorial no. Smithsonian Institution. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. The sponsor of a memorial may add an additional, No animated GIFs, photos with additional graphics (borders, embellishments. Flowers added to the memorial appear on the bottom of the memorial or here on the Flowers tab. x��Zms�6���~�:1J� Avnn&��i2�&������#S�YvI:n��_�>�"dCR۩+�����.������s�H)2�\,NOd�ѿ2Q�U�RT%}�9=ɒk�y}z�k*g�M.ޞ����/.���,ZNG��&Z�D�t�W"F���pYn��FH7���d%�2X���}����?&�������G�/M)d�9?j~Y�T0���_fE�3���W��#���Z�&�tI9ө�f������1u^dB�����+�(��J*+U���rvԴZa�ӎ�J���&��er1;+�_��O64[�}�5���s���1~�*��!���9�V�R��w4y����H�J��d��}̺���J�. (or is it just me...), Smithsonian Privacy Joseph von Fraunhofer was born in Straubing, Bavaria, on 6 March 1787. März 2012 geben die Fraunhofer-Experten Pater Leo Weber und Carl R. Preyß einen Einblick in sein Leben und seine Wirkungsstätte im Kloster Benediktbeuern. He is credited for discovering of the dark absorption lines (named Fraunhofer lines in his honor) in the Sun's spectrum and for making high quality optical glass and colorless telescope objectives. Joined the instrument workshop of Georg Reichenbach and Joseph Utzschneider making and developing lenses, and taking up optical glass making for the microscopes, opera glasses, loupes and the small and large astronomical telescopes and heliometers which the company built. Agreement NNX16AC86A, Encyclopedia of Astronomy and Astrophysics, Is ADS down? endobj GREAT NEWS! Directories Newly added. Your new password must contain one or more uppercase and lowercase letters, and one or more numbers or special characters. Oops, some error occurred while uploading your photo(s). Orphaned at the age of 11, he did an apprenticeship as lens- and mirror-maker, after which he became employed in a Munich company making scientific instruments. Het Fraunhofer-Gesellschaftis naar he… His most valuable glassmaking recipes were never documented and went to the grave with him. Because glassmaking of that era involved the emission of poisonous heavy metal vapors, he died at the age of 39. Are you sure that you want to report this flower to administrators as offensive or abusive? He learned mathematics and became very skilled in applied optics. Joseph Ritter von Fraunhofer was a Bavarian physicist and optical lens manufacturer. 1 0 obj We’ve updated the security on the site. Plese check the I'm not a robot checkbox.'. ヨゼフ・フォン・フラウンホーファー（Joseph von Fraunhofer 、1787年3月6日[1] - 1826年6月7日[1]）は、ドイツの光学機器製作者、物理学者である。太陽光のスペクトルの中のフラウンホーファー線、光学分野のフラウンホーファー回折に名前を残している。ドイツの応用研究と技術移転の機関「フラウンホーファー研究機構」は彼の名前に由来する。, バイエルンのシュトラウビング（Straubing ）でガラス鏡職人フランツ・X・フラウンホーファーの第11子[1]に生まれた。1797年に母が[1]、1798年に父が[1]死んで孤児となり[1]、ミュンヘンの鏡製造業者P・A・ワイヒゼルベルガーの徒弟となった[1]。1801年7月21日に作業場の建物が崩壊したが幸運にも無傷で救出され[1]、駆けつけたバイエルン選帝侯[1]マクシミリアン[1]4世ヨーゼフに金貨18ドゥカーテン[1]を与えられ励まされ、バイエルンの知事を務めたヨゼフ・フォン・ウッツシュナイダー[1]に見出されて引き取られ、日曜学校に通うようになった[1]。, 独学とウッツシュナイダーの教育と、天文学者であったU・シーク（U.Schiegg ）の感化によりかなりの知識を身につけ、1806年に数学機械研究所に入った[1]。ウッツシュナイダーからガラス研磨の仕事を与えられ、1807年にはベネディクトボイエルンの工場でガラス製造をしていたギナンの研磨助手に指名されたがギナンとの仲はうまくいかなかった[1]。1809年には全く出資していなかったにも関わらず研究所の経営に参画し名称も「ウッツシュナイダー・ライヘンバッハ・フラウンホーファー光学研究所」に改名されていた[1]。ギナンの供給する光学ガラスがフラウンホーファーが希望する屈折率を持っていなかったことが1811年にわかり、破局に至った[1]。ウッツシュナイダーが仲裁に入って丸く収め、ガラスもフラウンホーファーも製造させることになり、結局フラウンホーファーが工場の全てを切り回すことになった[1]。光学ガラスの均質性は向上し、1813年頃にプリズム分光器を製作し1814年頃ウイリアム・ウォラストンとは別に太陽スペクトルに約700本の暗線を発見した[1]。, 1817年に太陽スペクトルの暗線を基準にしてガラスの屈折率を測定することとし、これは光学技術上特記すべき業績とされる[1]。, 1817年5月3日バイエルン科学アカデミーの会員に指名[1]され、1821年に特別会員に推薦[1]され、カール・フリードリヒ・ガウスなど多くの名士と知り合った[1]。, 1819年エストニアタルトゥのドルパート天文台屈折望遠鏡用に有効口径24.4センチメートル（以降cm）、焦点距離432cm、F17.7の対物レンズを完成[1]し、工芸学校組合員[1]とアカデミー名誉教授[1]の称号を受けた。またこの年ガラスに金メッキをして300本/ミリメートルの平行線を刻んだ格子を製作し光波の回折を研究[1]、当時まだ確立していなかった光の波動説を支持した[1]。, 1824年には貴族に叙せられ姓にフォンを名乗ることを許されるとともに、ミュンヘン名誉市民に推戴[1]された。, 1825年夏の終わりに肺結核への感染が判明[1]、なおもクラウンガラスの製造を企図した[1]が、1826年ミュンヘンで[1]39年の短い生涯を閉じた。死因は肺結核とも、重金属中毒[注釈 1]ともいう。同地のアルター・ジュートフリードホーフ（Alter Südfriedhof ）に埋葬されている[2]。, 『天文アマチュアのための望遠鏡光学・屈折編』pp.1-54「世界史の中の屈折望遠鏡」。, http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=Fraunhofer&GSbyrel=in&GSdyrel=in&GSob=n&GRid=6049&, https://ja.wikipedia.org/w/index.php?title=ヨゼフ・フォン・フラウンホーファー&oldid=76616405.

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