JPS62245951A - デイスク測定装置 - Google Patents
デイスク測定装置Info
- Publication number
- JPS62245951A JPS62245951A JP8944986A JP8944986A JPS62245951A JP S62245951 A JPS62245951 A JP S62245951A JP 8944986 A JP8944986 A JP 8944986A JP 8944986 A JP8944986 A JP 8944986A JP S62245951 A JPS62245951 A JP S62245951A
- Authority
- JP
- Japan
- Prior art keywords
- light
- disk
- value
- receiving element
- beam splitter
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 230000003287 optical effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9506—Optical discs
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8944986A JPS62245951A (ja) | 1986-04-18 | 1986-04-18 | デイスク測定装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8944986A JPS62245951A (ja) | 1986-04-18 | 1986-04-18 | デイスク測定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62245951A true JPS62245951A (ja) | 1987-10-27 |
JPH0569374B2 JPH0569374B2 (enrdf_load_stackoverflow) | 1993-09-30 |
Family
ID=13970994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8944986A Granted JPS62245951A (ja) | 1986-04-18 | 1986-04-18 | デイスク測定装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62245951A (enrdf_load_stackoverflow) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01216235A (ja) * | 1988-02-25 | 1989-08-30 | Orc Mfg Co Ltd | 複屈折の測定方法 |
JPH04335145A (ja) * | 1991-05-13 | 1992-11-24 | Idec Izumi Corp | 織物欠陥穴検出器 |
JP2015225081A (ja) * | 2014-05-28 | 2015-12-14 | 天津先陽科技発展有限公司 | 拡散スペクトルデータの処理方法及び処理装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5788347A (en) * | 1980-10-29 | 1982-06-02 | Zeiss Jena Veb Carl | Polarization path difference measuring apparatus |
JPS60250229A (ja) * | 1984-05-28 | 1985-12-10 | Nec Corp | プラスチツク基板検査装置 |
-
1986
- 1986-04-18 JP JP8944986A patent/JPS62245951A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5788347A (en) * | 1980-10-29 | 1982-06-02 | Zeiss Jena Veb Carl | Polarization path difference measuring apparatus |
JPS60250229A (ja) * | 1984-05-28 | 1985-12-10 | Nec Corp | プラスチツク基板検査装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01216235A (ja) * | 1988-02-25 | 1989-08-30 | Orc Mfg Co Ltd | 複屈折の測定方法 |
JPH04335145A (ja) * | 1991-05-13 | 1992-11-24 | Idec Izumi Corp | 織物欠陥穴検出器 |
JP2015225081A (ja) * | 2014-05-28 | 2015-12-14 | 天津先陽科技発展有限公司 | 拡散スペクトルデータの処理方法及び処理装置 |
JP2020038225A (ja) * | 2014-05-28 | 2020-03-12 | 天津先陽科技発展有限公司 | 多位置拡散スペクトルデータの処理、モデリング、予測方法および処理装置 |
Also Published As
Publication number | Publication date |
---|---|
JPH0569374B2 (enrdf_load_stackoverflow) | 1993-09-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS618744A (ja) | 光デイスク装置のフオ−カス誤差検出装置 | |
US6115347A (en) | Optical pick-up device, optical recording/reproducing apparatus and objective lens | |
US5235574A (en) | Optical disk drive relative position sensor | |
JP3626003B2 (ja) | 光学的情報記憶装置 | |
JPS62245951A (ja) | デイスク測定装置 | |
JPS63261546A (ja) | 光ピツクアツプ | |
JP2768985B2 (ja) | 光学式情報記録再生装置 | |
JPH02193347A (ja) | 光磁気記録装置用光学ヘッド構造 | |
JP3533813B2 (ja) | 受発光素子及びこれを用いた光学ピックアップ | |
JP2660523B2 (ja) | 光記録再生装置 | |
JP3211507B2 (ja) | 光ピックアップ装置 | |
JP2825552B2 (ja) | 光学式情報記録再生装置 | |
JP2604368B2 (ja) | 複屈折測定装置 | |
JP3451663B2 (ja) | 光ピックアップ装置 | |
JPH10186135A (ja) | 偏光素子及びこれを利用した光学ピックアップ | |
JPS59152529A (ja) | 光学的記録再生装置 | |
JP3327929B2 (ja) | 光ピックアップ装置 | |
US5532477A (en) | Optical pickup apparatus having lens group for determining paths of an incident beam and a reflected & beam | |
JPH02148428A (ja) | 光ピックアップ装置 | |
JPH02105357A (ja) | 光磁気ディスク装置 | |
JPS63206916A (ja) | 光ヘツドのトラツキングエラ−検出光学系調整方法 | |
JPH0421252B2 (enrdf_load_stackoverflow) | ||
JPH0447533A (ja) | 光ピックアップ装置 | |
JPH0242641A (ja) | 光学ヘッド構造 | |
JPH09251658A (ja) | 光学ピックアップ |