JPS6239232U - - Google Patents

Info

Publication number
JPS6239232U
JPS6239232U JP13068185U JP13068185U JPS6239232U JP S6239232 U JPS6239232 U JP S6239232U JP 13068185 U JP13068185 U JP 13068185U JP 13068185 U JP13068185 U JP 13068185U JP S6239232 U JPS6239232 U JP S6239232U
Authority
JP
Japan
Prior art keywords
objective lens
prism
semi
light
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
Application number
JP13068185U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP13068185U priority Critical patent/JPS6239232U/ja
Publication of JPS6239232U publication Critical patent/JPS6239232U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Mounting And Adjusting Of Optical Elements (AREA)
  • Optical Head (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案による光ピツクアツプの光学装
置の実施例を示す部材配置図、第2図は従来の光
ピツクアツプの光学装置の構成図である。 21……発光素子、23……プリズム、23a
……半反射面、23b……全反射面、24……対
物レンズ、25……受光素子、D……光デイスク
FIG. 1 is a component arrangement diagram showing an embodiment of an optical device for an optical pickup according to the present invention, and FIG. 2 is a configuration diagram of a conventional optical device for an optical pickup. 21... Light emitting element, 23... Prism, 23a
...Semi-reflective surface, 23b... Total reflection surface, 24... Objective lens, 25... Light receiving element, D... Optical disk.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 検知ビームを発生する発光素子と、この検知ビ
ームを光デイスクの記録面に集光させる対物レン
ズと、光デイスクからの反射ビームを検知する受
光素子とが設けられている光ピツクアツプにおい
て、対物レンズの光軸上にはプリズムが設けられ
ており、このプリズムには、光軸に対して45度
傾斜している半反射面と、これよりも対物レンズ
から離れた位置にあつて対物レンズの光軸と直交
して形成されている全反射面とが設けられており
、且つ前記発光素子と受光素子とが、プリズムの
半反射面を挾んで同軸上に配置されていることを
特徴とする光デイスクの光学装置。
In an optical pickup equipped with a light-emitting element that generates a detection beam, an objective lens that focuses the detection beam on the recording surface of an optical disk, and a light-receiving element that detects the reflected beam from the optical disk, the objective lens is A prism is provided on the optical axis, and this prism includes a semi-reflective surface that is inclined at 45 degrees with respect to the optical axis, and a semi-reflective surface that is located further away from the objective lens and that is located on the optical axis of the objective lens. and a total reflection surface formed perpendicular to the prism, and the light emitting element and the light receiving element are arranged coaxially with the semi-reflection surface of the prism in between. optical device.
JP13068185U 1985-08-26 1985-08-26 Pending JPS6239232U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13068185U JPS6239232U (en) 1985-08-26 1985-08-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13068185U JPS6239232U (en) 1985-08-26 1985-08-26

Publications (1)

Publication Number Publication Date
JPS6239232U true JPS6239232U (en) 1987-03-09

Family

ID=31028413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13068185U Pending JPS6239232U (en) 1985-08-26 1985-08-26

Country Status (1)

Country Link
JP (1) JPS6239232U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578929A (en) * 1980-08-29 1982-01-18 Matsushita Electric Ind Co Ltd Optical pickup device
JPS57120242A (en) * 1981-01-14 1982-07-27 Matsushita Electric Ind Co Ltd Optical information reproducing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578929A (en) * 1980-08-29 1982-01-18 Matsushita Electric Ind Co Ltd Optical pickup device
JPS57120242A (en) * 1981-01-14 1982-07-27 Matsushita Electric Ind Co Ltd Optical information reproducing device

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