JPS636515U - - Google Patents
Info
- Publication number
- JPS636515U JPS636515U JP9871486U JP9871486U JPS636515U JP S636515 U JPS636515 U JP S636515U JP 9871486 U JP9871486 U JP 9871486U JP 9871486 U JP9871486 U JP 9871486U JP S636515 U JPS636515 U JP S636515U
- Authority
- JP
- Japan
- Prior art keywords
- head device
- optical head
- diffraction grating
- holder
- semiconductor laser
- 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 9
- 239000004065 semiconductor Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図はこの考案の一実施例による光ヘツド装
置を示す回析格子調整機構の側面図、第２図は第
１図―線に沿う縦断面図、第３図はその回析
格子調整機構の分解斜視図、第４図は光ヘツド装
置における光学部品の構成を示す分解斜視図、第
５図ａ，ｂは従来の回析格子調整機構の概略図、
第６図はデイスク上のレーザ光照射状態を拡大し
て示した正面図である。
図において、１はＬＤ、３は回析格子、２２は
回析格子のホルダ、２２ａは溝、２３は偏心ドラ
イバ、２３ｂはピン、２９は光学ヘツド装置の筐
体（ヘツドベース）。なお、図中、同一符号は同
一又は相当部分を示す。
Fig. 1 is a side view of a diffraction grating adjustment mechanism showing an optical head device according to an embodiment of the invention, Fig. 2 is a longitudinal cross-sectional view taken along the line of Fig. 1, and Fig. 3 is the diffraction grating adjustment mechanism. 4 is an exploded perspective view showing the configuration of optical components in the optical head device, and FIGS. 5a and 5b are schematic diagrams of a conventional diffraction grating adjustment mechanism.
FIG. 6 is an enlarged front view showing the laser beam irradiation state on the disk. In the figure, 1 is an LD, 3 is a diffraction grating, 22 is a holder for the diffraction grating, 22a is a groove, 23 is an eccentric driver, 23b is a pin, and 29 is a housing (head base) of the optical head device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
号を光学的に記録、再生および消去する光ヘツド
装置において、前記半導体レーザ光を複数の光束
に分割する回析格子と、前記回析格子を保持する
ホルダと、前記ホルダの外周に光軸と平行に形成
した複数の溝と、前記溝に係合するピンを有し前
記光学ヘツド装置の筐体に回動自在に支持された
偏心ドライバとを具備したことを特徴とする光ヘ
ツド装置。 An optical head device that optically records, reproduces, and erases information signals on an information recording disk using semiconductor laser light, which includes a diffraction grating that divides the semiconductor laser light into a plurality of light beams, and a diffraction grating that holds the diffraction grating. The optical head device includes a holder, a plurality of grooves formed on the outer periphery of the holder in parallel with the optical axis, and an eccentric driver having a pin that engages with the grooves and rotatably supported by a casing of the optical head device. An optical head device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9871486U JPS636515U (en) | 1986-06-27 | 1986-06-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9871486U JPS636515U (en) | 1986-06-27 | 1986-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS636515U true JPS636515U (en) | 1988-01-16 |
Family
ID=30966927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9871486U Pending JPS636515U (en) | 1986-06-27 | 1986-06-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS636515U (en) |
-
1986
- 1986-06-27 JP JP9871486U patent/JPS636515U/ja active Pending
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