JPH01151423U - - Google Patents
Info
- Publication number
- JPH01151423U JPH01151423U JP4631088U JP4631088U JPH01151423U JP H01151423 U JPH01151423 U JP H01151423U JP 4631088 U JP4631088 U JP 4631088U JP 4631088 U JP4631088 U JP 4631088U JP H01151423 U JPH01151423 U JP H01151423U
- Authority
- JP
- Japan
- Prior art keywords
- light
- light beam
- angle
- reflecting
- optical
- 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 6
Landscapes
- Mounting And Adjusting Of Optical Elements (AREA)
- Optical Head (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図ａ，ｂは本考案の詳細を説明するための要部断
面図、第３図は応用例を示す要部断面図、第４図
は従来例を示す断面図、第５図は従来例の問題点
を示す図である。
１…光源、２…光ビーム、３０…反射鏡部材、
４…対物レンズ、６…光デイスク。
Fig. 1 is a sectional view showing one embodiment of the present invention;
Figures a and b are sectional views of essential parts for explaining the details of the present invention, Figure 3 is a sectional view of essential parts showing an application example, Figure 4 is a sectional view of a conventional example, and Figure 5 is a sectional view of a conventional example. It is a figure showing a problem. DESCRIPTION OF SYMBOLS 1...Light source, 2...Light beam, 30...Reflector member,
4...Objective lens, 6...Optical disk.
Claims (1)
クアツプで光源から出射された光ビームや光デイ
スクからの反射光の進行方向を所定の角度に変化
させる反射手段を有する光ピツクアツプにおいて
、前記反射手段を前記角度の１／２の開き角を有
する２面の反射平面で各１回ずつ反射させる反射
手段と、２面の反射平面の狭角を２等分する中心
線と、光ビームの入射光と反射光の間で形成され
る角度の２等分線をほぼ一致する配置としたこと
を特徴とする光ピツクアツプ。 In an optical pickup for reproducing or recording an optical disc, the optical pickup has a reflecting means for changing the traveling direction of a light beam emitted from a light source or reflected light from an optical disc to a predetermined angle. A reflecting means that reflects the light beam once each on two reflecting planes having an opening angle of 1/2 of , a center line that bisects the narrow angle of the two reflecting planes, and the incident light and reflected light of the light beam. An optical pick-up characterized in that the bisectors of the angle formed between the two are arranged to substantially coincide with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4631088U JPH01151423U (en) | 1988-04-06 | 1988-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4631088U JPH01151423U (en) | 1988-04-06 | 1988-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01151423U true JPH01151423U (en) | 1989-10-19 |
Family
ID=31272580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4631088U Pending JPH01151423U (en) | 1988-04-06 | 1988-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01151423U (en) |
-
1988
- 1988-04-06 JP JP4631088U patent/JPH01151423U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0461301U (en) | ||
| JPH01151423U (en) | ||
| JPH0220819U (en) | ||
| JPH0175318U (en) | ||
| JPH01133316U (en) | ||
| JPS63153323U (en) | ||
| JPS6329234U (en) | ||
| JPS62142726U (en) | ||
| JPS62142725U (en) | ||
| JPH03121521U (en) | ||
| JPS6280214U (en) | ||
| JPH03106529U (en) | ||
| JPS61140430U (en) | ||
| JPS6347417U (en) | ||
| JPS6344216U (en) | ||
| JPS6313418U (en) | ||
| JPS6273328U (en) | ||
| JPS648227U (en) | ||
| JPS6239219U (en) | ||
| JPS61149119U (en) | ||
| JPS6020024U (en) | Optical pick-up reflective member adjustment device | |
| JPS623627U (en) | ||
| JPH02128222U (en) | ||
| JPS61174026U (en) | ||
| JPS61105919U (en) |