JPH0569361B2 - - Google Patents

Info

Publication number
JPH0569361B2
JPH0569361B2 JP13614986A JP13614986A JPH0569361B2 JP H0569361 B2 JPH0569361 B2 JP H0569361B2 JP 13614986 A JP13614986 A JP 13614986A JP 13614986 A JP13614986 A JP 13614986A JP H0569361 B2 JPH0569361 B2 JP H0569361B2
Authority
JP
Japan
Prior art keywords
light
substrate
reflected
lens
half mirror
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP13614986A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62293107A (ja
Inventor
Kazumasa Takada
Shigeyuki Tsurumi
Juichi Noda
Ban Nakajima
Kazushige Minegishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP13614986A priority Critical patent/JPS62293107A/ja
Publication of JPS62293107A publication Critical patent/JPS62293107A/ja
Publication of JPH0569361B2 publication Critical patent/JPH0569361B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
JP13614986A 1986-06-13 1986-06-13 微小溝深さ測定装置 Granted JPS62293107A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13614986A JPS62293107A (ja) 1986-06-13 1986-06-13 微小溝深さ測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13614986A JPS62293107A (ja) 1986-06-13 1986-06-13 微小溝深さ測定装置

Publications (2)

Publication Number Publication Date
JPS62293107A JPS62293107A (ja) 1987-12-19
JPH0569361B2 true JPH0569361B2 (enrdf_load_stackoverflow) 1993-09-30

Family

ID=15168454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13614986A Granted JPS62293107A (ja) 1986-06-13 1986-06-13 微小溝深さ測定装置

Country Status (1)

Country Link
JP (1) JPS62293107A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2533514B2 (ja) * 1987-02-06 1996-09-11 日本分光株式会社 凹部深さ・膜厚測定装置
KR100939538B1 (ko) * 2007-12-14 2010-02-03 (주) 인텍플러스 입체 형상 측정 장치

Also Published As

Publication number Publication date
JPS62293107A (ja) 1987-12-19

Similar Documents

Publication Publication Date Title
US6320665B1 (en) Acousto optic scanning laser vibrometer for determining the dynamic properties of an object
JPS61219805A (ja) 表面形状測定器
US5424833A (en) Interferential linear and angular displacement apparatus having scanning and scale grating respectively greater than and less than the source wavelength
CN112904526A (zh) 基于差动共焦探测具有抗噪能力的高精度自动对焦方法及装置
JPH0652170B2 (ja) 光結像式非接触位置測定装置
JPH0695114B2 (ja) 電圧検出装置
JPH0569361B2 (enrdf_load_stackoverflow)
JP2000186912A (ja) 微小変位測定方法および装置
JP3333236B2 (ja) 光学式表面形状測定装置
US7054095B2 (en) Displacement detection apparatus, and magnetic recording apparatus and encoder using the displacement detection apparatus
JPS63193003A (ja) 凹部深さ・膜厚測定装置
US6166818A (en) Interference measurement apparatus, interference measurement probe and interference measurement control system
JPH052963B2 (enrdf_load_stackoverflow)
JPH06288735A (ja) 放物面鏡形状検査測定用の位相共役干渉計
JP2950004B2 (ja) 共焦点レーザ顕微鏡
JP2544389B2 (ja) レンズ中心厚測定装置
JPH1047938A (ja) レーザビーム拡がり角測定装置
CN216900213U (zh) 一种飞点扫描白光光谱分光干涉仪
US20250128348A1 (en) Laser-processing machine with a frequency-comb-based distance sensor and associated method with frequency-comb-based distance measurement
JPH06194262A (ja) 被検面の曲率半径測定方法及び装置
JPS6199806A (ja) 溝の深さ測定装置
JPH10293010A (ja) 2ビーム光走査を用いた寸法測定方法及び測定装置
JPH0720094A (ja) 超音波振動測定装置
JPH0231103A (ja) パターン立体形状検知装置
JPH06174423A (ja) 測長または測角装置

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term