JPH0216433U - - Google Patents
Info
- Publication number
- JPH0216433U JPH0216433U JP9145088U JP9145088U JPH0216433U JP H0216433 U JPH0216433 U JP H0216433U JP 9145088 U JP9145088 U JP 9145088U JP 9145088 U JP9145088 U JP 9145088U JP H0216433 U JPH0216433 U JP H0216433U
- Authority
- JP
- Japan
- Prior art keywords
- tape
- light
- leader
- magnetic
- light receiving
- 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
Description
第１図は本考案に係るリーダーテープ検出機構
の一実施例が設けられたＶＴＲのフロントローデ
イング装置を示す斜視図、第２図は同じく本考案
の他の実施例を示す斜視図、第３図は従来のリー
ダーテープ検出機構が設けられたＶＴＲのフロン
トローデイング装置を示す斜視図、第４図は従来
のリーダーテープ検出機構を示す平面図である。
２……カセツト、５……ＬＥＤ（光源）、６…
…センサ（受光素子）、９……磁気テープ、１１
，１４……光フアイバ、１２……ＮＤフイルタ。
FIG. 1 is a perspective view showing a front loading device for a VTR equipped with an embodiment of the leader tape detection mechanism according to the present invention, FIG. 2 is a perspective view showing another embodiment of the present invention, and FIG. This figure is a perspective view showing a front loading device of a VTR equipped with a conventional leader tape detection mechanism, and FIG. 4 is a plan view showing the conventional leader tape detection mechanism. 2...Cassette, 5...LED (light source), 6...
...Sensor (light receiving element), 9...Magnetic tape, 11
, 14... optical fiber, 12... ND filter.
Claims (1)
にリーダーテープを設け、１個の光源から発する
光を供給側及び巻取側の前記磁気テープに導き、
前記リーダーテープを通過する光を受光素子によ
り受光して前記磁気テープの端を検出する磁気記
録再生装置のリーダーテープ検出機構において、
前記受光素子を１個とし、前記供給側及び巻取側
のリーダーテープを通過する前記光のうち少くと
も一方を、光フアイバを介して前記受光素子に受
光させるとともに、前記１対の光の光量に差をも
たせる手段を設けたことを特徴とする磁気記録再
生装置のリーダーテープ検出機構。 A leader tape is provided at both ends of a magnetic tape wound around a tape cassette, and light emitted from one light source is guided to the magnetic tape on the supply side and the winding side,
In a leader tape detection mechanism of a magnetic recording and reproducing device, which detects an end of the magnetic tape by receiving light passing through the leader tape with a light receiving element,
The number of the light receiving elements is one, and at least one of the lights passing through the leader tapes on the supply side and the winding side is received by the light receiving element via an optical fiber, and the amount of light of the pair of lights is set. A leader tape detection mechanism for a magnetic recording/reproducing device, characterized in that a means for making a difference is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9145088U JPH0216433U (en) | 1988-07-12 | 1988-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9145088U JPH0216433U (en) | 1988-07-12 | 1988-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0216433U true JPH0216433U (en) | 1990-02-01 |
Family
ID=31315932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9145088U Pending JPH0216433U (en) | 1988-07-12 | 1988-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0216433U (en) |
-
1988
- 1988-07-12 JP JP9145088U patent/JPH0216433U/ja active Pending
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