Molded lens and molding die for molded lens

Molded lens and molding die for molded lens

A molded lens used in an optical pickup device provided with a plane of incidence having a first optical surface and a plane of emergence having a second optical surface, and a form of an outer circumference of the molded lens is formed by a first straight line portion which is in parallel substanti...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Itoh, Teruhiko, Sawagami, Akira, Kojima, Toshiyuki
Format: Patent
Sprache:eng
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 Itoh, Teruhiko
Sawagami, Akira
Kojima, Toshiyuki
description A molded lens used in an optical pickup device provided with a plane of incidence having a first optical surface and a plane of emergence having a second optical surface, and a form of an outer circumference of the molded lens is formed by a first straight line portion which is in parallel substantially with a plane including an optical axis, a second straight line portion which is in parallel with the first straight line portion and is symmetric with the first straight line portion about the plane and by two circular arcs each connecting end portions of the first and second straight line portions. A part of a fringe of each of the first and second optical surfaces is substantially in a form of a circle whose center is on the optical axis is cut off by each of the first and second straight line portions.
format Patent
fullrecord <record><control><sourceid>uspatents_EFI</sourceid><recordid>TN_cdi_uspatents_applications_20040169939</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>20040169939</sourcerecordid><originalsourceid>FETCH-uspatents_applications_200401699393</originalsourceid><addsrcrecordid>eNrjZND2zc9JSU1RyEnNK1ZIzEtRyAXyM_PSFVIyUxXS8ovAfKg8DwNrWmJOcSovlOZm0HRzDXH20C0tLkgsSc0rKY5PLCjIyUxOLMnMzyuONzIwMDEwNLO0NLY0JkUtAEKJL9w</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Molded lens and molding die for molded lens</title><source>USPTO Published Applications</source><creator>Itoh, Teruhiko ; Sawagami, Akira ; Kojima, Toshiyuki</creator><creatorcontrib>Itoh, Teruhiko ; Sawagami, Akira ; Kojima, Toshiyuki</creatorcontrib><description>A molded lens used in an optical pickup device provided with a plane of incidence having a first optical surface and a plane of emergence having a second optical surface, and a form of an outer circumference of the molded lens is formed by a first straight line portion which is in parallel substantially with a plane including an optical axis, a second straight line portion which is in parallel with the first straight line portion and is symmetric with the first straight line portion about the plane and by two circular arcs each connecting end portions of the first and second straight line portions. A part of a fringe of each of the first and second optical surfaces is substantially in a form of a circle whose center is on the optical axis is cut off by each of the first and second straight line portions.</description><language>eng</language><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040169939$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,776,869,881,64032</link.rule.ids><linktorsrc>$$Uhttps://patentcenter.uspto.gov/applications/10785533$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Itoh, Teruhiko</creatorcontrib><creatorcontrib>Sawagami, Akira</creatorcontrib><creatorcontrib>Kojima, Toshiyuki</creatorcontrib><title>Molded lens and molding die for molded lens</title><description>A molded lens used in an optical pickup device provided with a plane of incidence having a first optical surface and a plane of emergence having a second optical surface, and a form of an outer circumference of the molded lens is formed by a first straight line portion which is in parallel substantially with a plane including an optical axis, a second straight line portion which is in parallel with the first straight line portion and is symmetric with the first straight line portion about the plane and by two circular arcs each connecting end portions of the first and second straight line portions. A part of a fringe of each of the first and second optical surfaces is substantially in a form of a circle whose center is on the optical axis is cut off by each of the first and second straight line portions.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EFI</sourceid><recordid>eNrjZND2zc9JSU1RyEnNK1ZIzEtRyAXyM_PSFVIyUxXS8ovAfKg8DwNrWmJOcSovlOZm0HRzDXH20C0tLkgsSc0rKY5PLCjIyUxOLMnMzyuONzIwMDEwNLO0NLY0JkUtAEKJL9w</recordid><startdate>20040902</startdate><enddate>20040902</enddate><creator>Itoh, Teruhiko</creator><creator>Sawagami, Akira</creator><creator>Kojima, Toshiyuki</creator><scope>EFI</scope></search><sort><creationdate>20040902</creationdate><title>Molded lens and molding die for molded lens</title><author>Itoh, Teruhiko ; Sawagami, Akira ; Kojima, Toshiyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_applications_200401699393</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Itoh, Teruhiko</creatorcontrib><creatorcontrib>Sawagami, Akira</creatorcontrib><creatorcontrib>Kojima, Toshiyuki</creatorcontrib><collection>USPTO Published Applications</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Itoh, Teruhiko</au><au>Sawagami, Akira</au><au>Kojima, Toshiyuki</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Molded lens and molding die for molded lens</title><date>2004-09-02</date><risdate>2004</risdate><abstract>A molded lens used in an optical pickup device provided with a plane of incidence having a first optical surface and a plane of emergence having a second optical surface, and a form of an outer circumference of the molded lens is formed by a first straight line portion which is in parallel substantially with a plane including an optical axis, a second straight line portion which is in parallel with the first straight line portion and is symmetric with the first straight line portion about the plane and by two circular arcs each connecting end portions of the first and second straight line portions. A part of a fringe of each of the first and second optical surfaces is substantially in a form of a circle whose center is on the optical axis is cut off by each of the first and second straight line portions.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_uspatents_applications_20040169939
source USPTO Published Applications
title Molded lens and molding die for molded lens
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-03T03%3A49%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-uspatents_EFI&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=Itoh,%20Teruhiko&rft.date=2004-09-02&rft_id=info:doi/&rft_dat=%3Cuspatents_EFI%3E20040169939%3C/uspatents_EFI%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