JPS6484444A - Two-shaft driving device for optical pickup - Google Patents
Two-shaft driving device for optical pickupInfo
- Publication number
- JPS6484444A JPS6484444A JP24160987A JP24160987A JPS6484444A JP S6484444 A JPS6484444 A JP S6484444A JP 24160987 A JP24160987 A JP 24160987A JP 24160987 A JP24160987 A JP 24160987A JP S6484444 A JPS6484444 A JP S6484444A
- Authority
- JP
- Japan
- Prior art keywords
- supporting
- rocking
- supported
- weight balance
- parts
- 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.)
- Pending
Links
Abstract
PURPOSE:To raise response sensitivity by supporting an objective lens by one end parts of four rocking shafts, supporting the element of one side of a magnetic driving mechanism, consisting of two electromagnetic elements opposing to each other, by the four rocking shafts, supporting the element of other side by a supporting member, and equalizing weight balance at both sides positioned with a part, supported by the supporting member of the rocking shaft, between. CONSTITUTION:As for four rocking shafts 10,10', 11,11', the weight balance of two parts of a left and a right sides, positioned with the part, supported by a respective supporting wall 6, between, is equalized. Namely, the weight of hinge members 14,14', 15,15', a lens supporting body 19, the objective lens 21, a yoke 23, a magnet 24, etc., supported by four rocking shafts directly or indirectly, and their arranged positions are set so that the weight balance of two parts in the axial direction of the rocking shaft comes equal. Accordingly, whatever direction the rocking shaft comes in, loads acting in the direction of gravity of the left and the right sides, positioned with the part, supported wall 6, between, come always to be balanced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24160987A JPS6484444A (en) | 1987-09-25 | 1987-09-25 | Two-shaft driving device for optical pickup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24160987A JPS6484444A (en) | 1987-09-25 | 1987-09-25 | Two-shaft driving device for optical pickup |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6484444A true JPS6484444A (en) | 1989-03-29 |
Family
ID=17076864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24160987A Pending JPS6484444A (en) | 1987-09-25 | 1987-09-25 | Two-shaft driving device for optical pickup |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6484444A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5319194A (en) * | 1992-03-10 | 1994-06-07 | Matsushita Electric Industrial Co., Ltd. | Apparatus for measuring birefringence without employing rotating mechanism |
EP1475791A2 (en) * | 2003-05-01 | 2004-11-10 | Systems Engineering Co. Ltd | Optical pickup lens driving apparatus |
US10470445B2 (en) | 2011-08-26 | 2019-11-12 | Yecuris Corporation | Fumarylacetoacetate hydrolase (Fah)-deficient and immunodeficient rats and uses thereof |
-
1987
- 1987-09-25 JP JP24160987A patent/JPS6484444A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5319194A (en) * | 1992-03-10 | 1994-06-07 | Matsushita Electric Industrial Co., Ltd. | Apparatus for measuring birefringence without employing rotating mechanism |
EP1475791A2 (en) * | 2003-05-01 | 2004-11-10 | Systems Engineering Co. Ltd | Optical pickup lens driving apparatus |
US10470445B2 (en) | 2011-08-26 | 2019-11-12 | Yecuris Corporation | Fumarylacetoacetate hydrolase (Fah)-deficient and immunodeficient rats and uses thereof |
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