JPS61101804U - - Google Patents
Info
- Publication number
- JPS61101804U JPS61101804U JP18563484U JP18563484U JPS61101804U JP S61101804 U JPS61101804 U JP S61101804U JP 18563484 U JP18563484 U JP 18563484U JP 18563484 U JP18563484 U JP 18563484U JP S61101804 U JPS61101804 U JP S61101804U
- Authority
- JP
- Japan
- Prior art keywords
- hologram lens
- showing
- another embodiment
- laser light
- still another
- 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 1
- 238000010586 diagram Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Holo Graphy (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は本発明の一実施例の要部を示す配置図
、第２図はそのホログラムレンズの作成方法を示
す線図、第３図は本発明の他の実施例の要部を示
す配置図、第４図はそのホログラムレンズの作成
方法を示す線図、第５図はそのホログラムレンズ
を示す平面図、第６図は本発明の更に他の実施例
の要部を示す配置図、第７図及び第８図はそのホ
ログラムレンズの作成方法を示す線図、第９図は
第６図の実施例の動作説明に供する線図及びホロ
グラムレンズを示す平面図、第１０図は本発明の
更に他の実施例の動作説明に供する線図及びホロ
グラムレンズを示す平面図、第１１図はそのホロ
グラムレンズの作成方法を示す線図、第１２図は
本発明の更に他の実施例の要部を示す配置図、第
１３図はそのホログラムレンズを示す平面図、第
１４図は本発明の更に他の実施例の要部を示す配
置図、第１５図は更に他の実施例の要部を示す配
置図、第１６図は更に他の実施例の要部を示す配
置図、第１７図はそのホログラムレンズを示す平
面図、第１８図は本発明の更に他の実施例を示す
配置図、第１９図はそのホログラムレンズを示す
平面図、第２０図及び第２１図は本発明の更に他
の実施例を示す配置図及び平面図、第２２図は本
発明の更に他の実施例の要部を示す平面図、第２
３図は光検出器の一例を示す断面図、第２４図は
本発明を適用したＶＴＲの一例を示す断面図であ
る。
ＳＤ，ＳＤ′は固定ドラム（固定体）、ＲＤは
回転ドラム（回転体）、Ｈはホログラム記録媒体
、ｈ，ｈ１，ｈ２，ｈ′はホログラムレンズ、Ｌ
Ｄ，ＬＤ１，ＬＤ２，ＬＤ′はレーザ光源、Ｄ，
Ｄ１，Ｄ２，Ｄ′は光検出器である。
Fig. 1 is a layout diagram showing the main parts of one embodiment of the present invention, Fig. 2 is a line diagram showing the method for creating the hologram lens, and Fig. 3 is a layout diagram showing the main parts of another embodiment of the invention. 4 is a line diagram showing a method for producing the hologram lens, FIG. 5 is a plan view showing the hologram lens, and FIG. 6 is a layout diagram showing main parts of still another embodiment of the present invention. 7 and 8 are diagrams showing a method for producing the hologram lens, FIG. 9 is a diagram for explaining the operation of the embodiment shown in FIG. 6, and a plan view showing the hologram lens. FIG. A diagram for explaining the operation of still another embodiment and a plan view showing a hologram lens, FIG. 11 is a diagram showing a method for producing the hologram lens, and FIG. 12 is a main part of still another embodiment of the present invention. FIG. 13 is a plan view showing the hologram lens, FIG. 14 is a layout diagram showing the main parts of still another embodiment of the present invention, and FIG. 15 shows the main parts of still another embodiment. FIG. 16 is a layout diagram showing essential parts of still another embodiment, FIG. 17 is a plan view showing the hologram lens, and FIG. 18 is a layout diagram showing still another embodiment of the present invention. FIG. 19 is a plan view showing the hologram lens, FIGS. 20 and 21 are layout diagrams and plan views showing still another embodiment of the present invention, and FIG. 22 is a summary of still another embodiment of the present invention. A plan view showing the second part.
FIG. 3 is a sectional view showing an example of a photodetector, and FIG. 24 is a sectional view showing an example of a VTR to which the present invention is applied. SD and SD' are fixed drums (fixed body), RD is a rotating drum (rotating body), H is a hologram recording medium, h, h 1 , h 2 , h' are hologram lenses, and L
D, LD 1 , LD 2 , LD' are laser light sources, D,
D 1 , D 2 , D' are photodetectors.
Claims (1)
設け、他方にホログラムレンズ及び光検出器を設
け、上記レーザ光源よりのレーザ光を上記ホログ
ラムレンズによつて集束して上記光検出器に入射
せしめるようにして成る光学式ロータリカプラ。 A laser light source is provided on one of the rotating body and the fixed body, and a hologram lens and a photodetector are provided on the other, and the laser light from the laser light source is focused by the hologram lens and made to enter the photodetector. This is an optical rotary coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18563484U JPS61101804U (en) | 1984-12-07 | 1984-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18563484U JPS61101804U (en) | 1984-12-07 | 1984-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61101804U true JPS61101804U (en) | 1986-06-28 |
Family
ID=30743100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18563484U Pending JPS61101804U (en) | 1984-12-07 | 1984-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61101804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63282903A (en) * | 1987-05-15 | 1988-11-18 | Nippon Hoso Kyokai <Nhk> | Revolving magnetic head type video tape recorder |
-
1984
- 1984-12-07 JP JP18563484U patent/JPS61101804U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63282903A (en) * | 1987-05-15 | 1988-11-18 | Nippon Hoso Kyokai <Nhk> | Revolving magnetic head type video tape recorder |
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