JPS645222U - - Google Patents
Info
- Publication number
- JPS645222U JPS645222U JP9813787U JP9813787U JPS645222U JP S645222 U JPS645222 U JP S645222U JP 9813787 U JP9813787 U JP 9813787U JP 9813787 U JP9813787 U JP 9813787U JP S645222 U JPS645222 U JP S645222U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- optical
- function section
- beam splitter
- optical member
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Description
第１図乃至第５図は本考案の一実施例を示すも
のであつて、第１図は光学的読取装置を示す要部
の平面図、第２図は第１図の中央縦断面図、第３
図はその組み立て状態の斜視図、第４図は分解斜
視図、第５図は光学的読取装置の全体を示す平面
図、第６図は従来例を示す概略構成図である。
１は一体型光学系、２は円柱状レンズ（円柱状
光学部材）、３は円柱状プリズム（円柱状光学部
材）、４はビームスプリツター機能部、５は対物
レンズ機能部、６はシリンドリカルレンズ機能部
、７は光検出器、８は発光源、１０はホルダー、
３１はデイスクである。
1 to 5 show one embodiment of the present invention, in which FIG. 1 is a plan view of essential parts showing an optical reading device, FIG. 2 is a central vertical sectional view of FIG. 1, and FIG. Third
4 is an exploded perspective view, FIG. 5 is a plan view showing the entire optical reading device, and FIG. 6 is a schematic configuration diagram showing a conventional example. 1 is an integrated optical system, 2 is a cylindrical lens (cylindrical optical member), 3 is a cylindrical prism (cylindrical optical member), 4 is a beam splitter function section, 5 is an objective lens function section, 6 is a cylindrical lens Functional part, 7 is a photodetector, 8 is a light emitting source, 10 is a holder,
31 is a disk.
Claims (1)
された少なくとも一方が円柱状の光学部材同士を
一体的に接合してビームスプリツター機能部を形
成するとともに、デイスク状記録媒体側に位置す
る上記円柱状光学部材の端部に対物レンズ機能部
を形成し、且つ、上記ビームスプリツター機能部
にて形成される反射光路上に位置する上記円柱状
光学部材の曲面部にてシリンドリカルレンズ機能
部を形成して成る一体型光学系を備えたことを特
徴とする光学的読取装置。 At least one of the cylindrical optical members whose joint surfaces are cut at approximately 45 degrees with respect to the center of the optical path is integrally joined to form a beam splitter function part, and is located on the disk-shaped recording medium side. An objective lens function section is formed at the end of the cylindrical optical member, and a cylindrical lens function section is formed at the curved surface of the cylindrical optical member located on the reflected optical path formed by the beam splitter function section. What is claimed is: 1. An optical reading device characterized by comprising an integrated optical system comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9813787U JPS645222U (en) | 1987-06-26 | 1987-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9813787U JPS645222U (en) | 1987-06-26 | 1987-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS645222U true JPS645222U (en) | 1989-01-12 |
Family
ID=31324132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9813787U Pending JPS645222U (en) | 1987-06-26 | 1987-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS645222U (en) |
-
1987
- 1987-06-26 JP JP9813787U patent/JPS645222U/ja active Pending