JPH0250823U - - Google Patents
Info
- Publication number
- JPH0250823U JPH0250823U JP12896188U JP12896188U JPH0250823U JP H0250823 U JPH0250823 U JP H0250823U JP 12896188 U JP12896188 U JP 12896188U JP 12896188 U JP12896188 U JP 12896188U JP H0250823 U JPH0250823 U JP H0250823U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- small hole
- optical pickup
- inspection device
- diaphragm
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Description
第１図〜第４図は本考案の光ピツクアツプ検査
装置の一実施例を示す構成図、第５図および第６
図は従来の光ピツクアツプ検査装置の一例を示す
構成図である。
１……光ピツクアツプ、２……対物レンズ、３
……光源、４……受光素子、５……変換回路、６
……反射シート、７……変位変換器、８……絞り
、９……小穴、１０……位置検出器、１１……凸
レンズ。
1 to 4 are block diagrams showing an embodiment of the optical pickup inspection device of the present invention, and FIGS.
The figure is a configuration diagram showing an example of a conventional optical pickup inspection device. 1...Optical pickup, 2...Objective lens, 3
... Light source, 4 ... Light receiving element, 5 ... Conversion circuit, 6
... Reflection sheet, 7 ... Displacement converter, 8 ... Aperture, 9 ... Small hole, 10 ... Position detector, 11 ... Convex lens.
Claims (1)
を遮る位置に配置されるとともにこの対物レンズ
の中心から偏心した位置に小穴を有する絞りと、
この小穴を通過した光を受けその入射位置を検出
する位置検出器とを具備してなる光ピツクアツプ
検査装置。 a diaphragm having a small hole located at a position that blocks the light emitted from the objective lens of the optical pickup and located eccentrically from the center of the objective lens;
An optical pick-up inspection device comprising a position detector that receives the light passing through the small hole and detects its incident position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12896188U JPH0648574Y2 (en) | 1988-09-30 | 1988-09-30 | Optical pickup inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12896188U JPH0648574Y2 (en) | 1988-09-30 | 1988-09-30 | Optical pickup inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0250823U true JPH0250823U (en) | 1990-04-10 |
| JPH0648574Y2 JPH0648574Y2 (en) | 1994-12-12 |
Family
ID=31382787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12896188U Expired - Lifetime JPH0648574Y2 (en) | 1988-09-30 | 1988-09-30 | Optical pickup inspection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648574Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009224014A (en) * | 2008-02-20 | 2009-10-01 | Sanyo Electric Co Ltd | Method for inspecting objective lens driving device and apparatus for inspecting the same |
| WO2011158920A1 (en) * | 2010-06-16 | 2011-12-22 | 三洋電機株式会社 | Method for testing objective lens drive device |
-
1988
- 1988-09-30 JP JP12896188U patent/JPH0648574Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009224014A (en) * | 2008-02-20 | 2009-10-01 | Sanyo Electric Co Ltd | Method for inspecting objective lens driving device and apparatus for inspecting the same |
| WO2011158920A1 (en) * | 2010-06-16 | 2011-12-22 | 三洋電機株式会社 | Method for testing objective lens drive device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0648574Y2 (en) | 1994-12-12 |
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