专利大数据平台
注册系统的好处
真正的全球专利检索、浏览、下载、分析。
 

平台简介
专利大数据服务平台系统收录中国、美国、日本、英国、德国、法国、欧洲、PCT等100个国家和组织的专利数据1亿条以上,提供专利数据的检索、浏览、保存、简要分析等免费服务和订阅、下载等定制化服务。
公开时间: 1994-05-31      申请时间: 1992-07-28
申请人: ASAHI OPTICAL CO LTD

US5317144A
patent for invention


标题(英语)

Wave front aberration measuring apparatus having means for adjusting position of collimator lens


摘要(英语)

An apparatus for measuring a wave front aberration includes a light beam splitter for dividing a parallel laser light beam made incident from a measuring object into two beamfluxes, an image rotator disposed in at least one optical path of the divided beam fluxes for rotating the wave front on the optical axis, an interference device for interfering after superposing the beam fluxes whose wave fronts are rotated relatively, an imaging lens for forming the interfered beam into an image, and an observation device for observing the imaged interference fringes.


申请人详细信息

序号 名称 数据格式
1 ASAHI OPTICAL CO LTD docdb

发明人详细信息

序号 名称 数据格式
1 OONO MASAHIRO docdb
2 ITOH TSUYOSHI docdb
3 HAYASHI KATSUKI docdb
4 KASE TOSHIYUKI docdb
5 SASAKI MASAHIKO docdb
6 MAMOTO HIROSHI docdb
7 OKUDA ISAO docdb

法律状态

序号 日期 法律代码 详细信息
1 19940111 AS ASSIGNMENT
2 19950411 CC CERTIFICATE OF CORRECTION
3 19971017 FPAY FEE PAYMENT
4 20011108 FPAY FEE PAYMENT
5 20051104 FPAY FEE PAYMENT

文档历史

公开时间: 1994-05-31
US5317144A
申请时间: 1992-07-28
US92092492

CPC分类

G11B7/22, G01J9/0215, G11B7/09, G11B11/10532, G11B11/10576

IPC分类

G01J9/02

专利家族

27529787

被引非专利信息

引用阶段 文档类型 文档信息

专利大数据平台