JPS60106218U - optical information reader - Google Patents
optical information readerInfo
- Publication number
- JPS60106218U JPS60106218U JP20213583U JP20213583U JPS60106218U JP S60106218 U JPS60106218 U JP S60106218U JP 20213583 U JP20213583 U JP 20213583U JP 20213583 U JP20213583 U JP 20213583U JP S60106218 U JPS60106218 U JP S60106218U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- coils
- objective lens
- support shaft
- inner yoke
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図ａ及びｂはそれぞれ本考案に係る光学的情報読み
取り装置の一実施例の断面図及びカバーを除いた平面図
、第２図はその分解図、第３図は同上装置の要部の分解
斜視図、第４図ａ、 ｂ、 ｃはそれぞれトラッキング
動作用コイルの斜視図、対物レンズ保持アームの斜視図
及び同コイルの取付状態を示す断面図である。
２・・・支軸、３・・・対物レンス保持アーム、６・・
・フォ・−カス動作用コイル、７・・・トラッキング動
作用コイル、１１・・・磁石装置、１３・・・内側ヨー
・−り、４１・・・ボビン。
［丁二
’ ／ノ ／Ｓ；２’Ｌ １− −
＼＼Ｎべ−ＸＮ−−−−
７第２図
、／“ノ
一一一１−−゛−−−
Ｉ２５ａFigures 1a and b are a sectional view and a plan view with the cover removed, respectively, of an embodiment of the optical information reading device according to the present invention, Figure 2 is an exploded view thereof, and Figure 3 is a main part of the same device. The exploded perspective view and FIGS. 4A, 4B, and 4C are a perspective view of a tracking operation coil, a perspective view of an objective lens holding arm, and a sectional view showing a state in which the coil is attached, respectively. 2... Support shaft, 3... Objective lens holding arm, 6...
- Focus operation coil, 7... Tracking operation coil, 11... Magnet device, 13... Inner yaw lever, 41... Bobbin. [cho 2' /ノ /S;2'L 1- -
I25a
Claims (1)
支持され、支軸の軸方向にコイルの＃１４÷一致させた
円環状のフォーカス動作用コニｊイルをイ七′する対物
レンズ保持子・−ムと、該対物レンズ保持アームに取付
けられた対物レンズと、該対物レンズに対応して設けら
れた光ビーム受発光部とを有する光学系装置と、上記フ
ォー・カス動作用コイルの外側において該コイルの軸に
対して対称な位欝ンとなるように上記対物ｌ／ンズ保持
アームに取着されブこ一対のボビンと、−フィル軸が上
記フォ−カス動作用コイルの接線方向となるように上記
ボビンに巻回された一対のトラッキング動作用コイルと
、上記フォーカス動作用コイルの内部に設けられた円環
状の内側ヨークと、内側ヨークに対応してフォーカス動
作用コイルを挾んで外側に設けられ、且つ上記各トラッ
キング動作用コイルに挿入される磁極を備えた２個の円
弧状の外側ヨークと、内側ヨークと外側ヨークとの間に
磁束を生じさぜる磁石とを有する磁石装置とを備えたこ
とを特徴とする光学的情報読み取り装置。An annular focusing conical coil that is movable in the axial direction of the support shaft and rotatably supported at the same time with respect to the support shaft, and has a coil #14 divided by the number of coils in the axial direction of the support shaft. an optical system device having an objective lens holder-arm, an objective lens attached to the objective lens holding arm, a light beam receiving/emitting section provided corresponding to the objective lens; A pair of bobbins and a fill shaft are attached to the objective l/lens holding arm so as to be symmetrically positioned with respect to the axis of the coil on the outside of the operating coil, and a fill shaft is used for the focusing operation. A pair of tracking operation coils are wound on the bobbin in the tangential direction of the coils, an annular inner yoke provided inside the focus operation coil, and a focus operation coil corresponding to the inner yoke. two arcuate outer yokes with magnetic poles that are provided on the outside sandwiching the coil and inserted into each of the tracking operation coils, and a magnet that generates magnetic flux between the inner yoke and the outer yoke. What is claimed is: 1. An optical information reading device comprising: a magnet device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20213583U JPS60106218U (en) | 1983-12-23 | 1983-12-23 | optical information reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20213583U JPS60106218U (en) | 1983-12-23 | 1983-12-23 | optical information reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60106218U true JPS60106218U (en) | 1985-07-19 |
Family
ID=30764570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20213583U Pending JPS60106218U (en) | 1983-12-23 | 1983-12-23 | optical information reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60106218U (en) |
-
1983
- 1983-12-23 JP JP20213583U patent/JPS60106218U/en active Pending
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