POLARIZED LIGHT CONVERTER AND ILLUMINATOR USING IT

POLARIZED LIGHT CONVERTER AND ILLUMINATOR USING IT

PROBLEM TO BE SOLVED: To provide a constitution by which a uniform illuminance distribution can be obtained with a high optical efficiency in a polarized light illuminator applied to a projection type display device. SOLUTION: A polarized light converter is arranged between a 1st lens board 11 and a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: IMAOKA HIROFUMI
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator IMAOKA HIROFUMI
description PROBLEM TO BE SOLVED: To provide a constitution by which a uniform illuminance distribution can be obtained with a high optical efficiency in a polarized light illuminator applied to a projection type display device. SOLUTION: A polarized light converter is arranged between a 1st lens board 11 and a 2nd lens board 15 corresponding to integrator. The polarized light converter separates each focused light flux of light of a light source obtained from each lens segment 11a of the 1st lens board 11 into different linearly polarized light through a polarized light separation prism board 12, and converts one of the linearly polarized light into the same polarized light as the other one through a λ/2-wave plate 13 for letting the two systems emit, however, a glass block 14 for correction is provided in a longer optical path. Since the glass block 14 for correction corrects an image formation position of the focused light flux and the focusing condition, and makes the focused light fluxes of the two systems incident on each lens segment 16a of the 2nd lens board 15 under the same condition, it is possible to accurately superpose each secondary light source image on an illumination area for forming an image.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPH11101956A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPH11101956A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPH11101956A3</originalsourceid><addsrcrecordid>eNrjZDAK8PdxDPKMcnVR8PF09whRcPb3C3MNCnENUnD0c1Hw9PEJ9fX0cwzxD1IIDfb0c1fwDOFhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfFeAR6GhoYGhpamZo7GxKgBAJIaJys</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>POLARIZED LIGHT CONVERTER AND ILLUMINATOR USING IT</title><source>esp@cenet</source><creator>IMAOKA HIROFUMI</creator><creatorcontrib>IMAOKA HIROFUMI</creatorcontrib><description>PROBLEM TO BE SOLVED: To provide a constitution by which a uniform illuminance distribution can be obtained with a high optical efficiency in a polarized light illuminator applied to a projection type display device. SOLUTION: A polarized light converter is arranged between a 1st lens board 11 and a 2nd lens board 15 corresponding to integrator. The polarized light converter separates each focused light flux of light of a light source obtained from each lens segment 11a of the 1st lens board 11 into different linearly polarized light through a polarized light separation prism board 12, and converts one of the linearly polarized light into the same polarized light as the other one through a λ/2-wave plate 13 for letting the two systems emit, however, a glass block 14 for correction is provided in a longer optical path. Since the glass block 14 for correction corrects an image formation position of the focused light flux and the focusing condition, and makes the focused light fluxes of the two systems incident on each lens segment 16a of the 2nd lens board 15 under the same condition, it is possible to accurately superpose each secondary light source image on an illumination area for forming an image.</description><edition>6</edition><language>eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><creationdate>1999</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&amp;date=19990413&amp;DB=EPODOC&amp;CC=JP&amp;NR=H11101956A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19990413&amp;DB=EPODOC&amp;CC=JP&amp;NR=H11101956A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IMAOKA HIROFUMI</creatorcontrib><title>POLARIZED LIGHT CONVERTER AND ILLUMINATOR USING IT</title><description>PROBLEM TO BE SOLVED: To provide a constitution by which a uniform illuminance distribution can be obtained with a high optical efficiency in a polarized light illuminator applied to a projection type display device. SOLUTION: A polarized light converter is arranged between a 1st lens board 11 and a 2nd lens board 15 corresponding to integrator. The polarized light converter separates each focused light flux of light of a light source obtained from each lens segment 11a of the 1st lens board 11 into different linearly polarized light through a polarized light separation prism board 12, and converts one of the linearly polarized light into the same polarized light as the other one through a λ/2-wave plate 13 for letting the two systems emit, however, a glass block 14 for correction is provided in a longer optical path. Since the glass block 14 for correction corrects an image formation position of the focused light flux and the focusing condition, and makes the focused light fluxes of the two systems incident on each lens segment 16a of the 2nd lens board 15 under the same condition, it is possible to accurately superpose each secondary light source image on an illumination area for forming an image.</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAK8PdxDPKMcnVR8PF09whRcPb3C3MNCnENUnD0c1Hw9PEJ9fX0cwzxD1IIDfb0c1fwDOFhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfFeAR6GhoYGhpamZo7GxKgBAJIaJys</recordid><startdate>19990413</startdate><enddate>19990413</enddate><creator>IMAOKA HIROFUMI</creator><scope>EVB</scope></search><sort><creationdate>19990413</creationdate><title>POLARIZED LIGHT CONVERTER AND ILLUMINATOR USING IT</title><author>IMAOKA HIROFUMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH11101956A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><toplevel>online_resources</toplevel><creatorcontrib>IMAOKA HIROFUMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IMAOKA HIROFUMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>POLARIZED LIGHT CONVERTER AND ILLUMINATOR USING IT</title><date>1999-04-13</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To provide a constitution by which a uniform illuminance distribution can be obtained with a high optical efficiency in a polarized light illuminator applied to a projection type display device. SOLUTION: A polarized light converter is arranged between a 1st lens board 11 and a 2nd lens board 15 corresponding to integrator. The polarized light converter separates each focused light flux of light of a light source obtained from each lens segment 11a of the 1st lens board 11 into different linearly polarized light through a polarized light separation prism board 12, and converts one of the linearly polarized light into the same polarized light as the other one through a λ/2-wave plate 13 for letting the two systems emit, however, a glass block 14 for correction is provided in a longer optical path. Since the glass block 14 for correction corrects an image formation position of the focused light flux and the focusing condition, and makes the focused light fluxes of the two systems incident on each lens segment 16a of the 2nd lens board 15 under the same condition, it is possible to accurately superpose each secondary light source image on an illumination area for forming an image.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_JPH11101956A
source esp@cenet
subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
title POLARIZED LIGHT CONVERTER AND ILLUMINATOR USING IT
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T17%3A57%3A08IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=IMAOKA%20HIROFUMI&rft.date=1999-04-13&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJPH11101956A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true