JPS62142714U - - Google Patents
Info
- Publication number
- JPS62142714U JPS62142714U JP2907386U JP2907386U JPS62142714U JP S62142714 U JPS62142714 U JP S62142714U JP 2907386 U JP2907386 U JP 2907386U JP 2907386 U JP2907386 U JP 2907386U JP S62142714 U JPS62142714 U JP S62142714U
- Authority
- JP
- Japan
- Prior art keywords
- reflective
- reflective member
- optical
- positioning protrusion
- fixing means
- 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
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
Description
第１図は本考案の第１実施例による光学式ピツ
クアツプの反射部材固定機構を示す断面図、第２
図は第１図の反射部材を示す右側面図、第３図は
本考案の第２実施例による光学式ピツクアツプの
反射部材を示す断面図、第４図は第３図の反射部
材を示す右側面図、第５図は従来の光学式ピツク
アツプの構造の一部を示す断面図である。
１…対物レンズ、２…レンズホルダ、５…光学
装置、１０…平板形状の反射部材、１０ａ…反射
面となる表面、１０ｂ…裏面、１１…ベース、１
２ａ，１２ｂ，１２ｃ…位置決め突部、１４…接
着剤、１５，１６…板ばね（付勢部材）、Ｄ…光
デイスク。
1 is a cross-sectional view showing a reflection member fixing mechanism of an optical pickup according to a first embodiment of the present invention; FIG.
The figure is a right side view showing the reflecting member in Fig. 1, Fig. 3 is a sectional view showing the reflecting member of an optical pickup according to the second embodiment of the present invention, and Fig. 4 is a right side view showing the reflecting member in Fig. 3. FIG. 5 is a sectional view showing a part of the structure of a conventional optical pickup. DESCRIPTION OF SYMBOLS 1... Objective lens, 2... Lens holder, 5... Optical device, 10... Flat reflecting member, 10a... Surface serving as a reflective surface, 10b... Back surface, 11... Base, 1
2a, 12b, 12c...positioning protrusion, 14...adhesive, 15, 16...plate spring (biasing member), D...optical disk.
Claims (1)
光素子や受光素子を含む光学系内に、光軸に対し
て傾斜した反射面を有する反射部材で配設されて
いる光学式ピツクアツプにおいて、前記反射部材
は、表面が反射面とされた平板形状であり、且つ
ベース上には前記光軸に対して傾斜した仮想平面
上に位置する複数の位置決め突部が形成されてお
り、前記反射部材はその裏面が前記位置決め突部
に当接した状態にて固定手段により固定されてい
ることを特徴とする光学式ピツクアツプの反射部
材固定機構。 (2) 固定手段は、位置決め突部の中間に塗布さ
れた接着剤である実用新案登録請求の範囲第１項
記載の光学式ピツクアツプの反射部材固定機構。 (3) 固定手段は、反射部材を位置決め突部の方
向に押圧する付勢部材である実用新案登録請求の
範囲第１項記載の光学式ピツクアツプの反射部材
固定機構。[Claims for Utility Model Registration] (1) An optical system that includes a reflective member having a reflective surface inclined with respect to the optical axis in an optical system that includes an objective lens facing a disk, a light emitting element, and a light receiving element. In the type pickup, the reflective member has a flat plate shape with a reflective surface, and a plurality of positioning protrusions are formed on the base and are located on a virtual plane inclined with respect to the optical axis. . A reflecting member fixing mechanism for an optical pickup, wherein the reflecting member is fixed by a fixing means with its back surface in contact with the positioning protrusion. (2) The reflective member fixing mechanism for an optical pickup according to claim 1, wherein the fixing means is an adhesive applied to the middle of the positioning protrusion. (3) The reflective member fixing mechanism for an optical pickup according to claim 1, wherein the fixing means is a biasing member that presses the reflective member in the direction of the positioning protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2907386U JPS62142714U (en) | 1986-02-28 | 1986-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2907386U JPS62142714U (en) | 1986-02-28 | 1986-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62142714U true JPS62142714U (en) | 1987-09-09 |
Family
ID=30832628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2907386U Pending JPS62142714U (en) | 1986-02-28 | 1986-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62142714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH025716U (en) * | 1988-06-23 | 1990-01-16 |
-
1986
- 1986-02-28 JP JP2907386U patent/JPS62142714U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH025716U (en) * | 1988-06-23 | 1990-01-16 |
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