JPS6060091U

JPS6060091U - Magnetic tape remaining amount detection device

Info

Publication number: JPS6060091U
Application number: JP15074583U
Authority: JP
Inventors: 百木　元康; 阿部　要; 一健菅原
Original assignee: オリンパス光学工業株式会社
Priority date: 1983-09-29
Filing date: 1983-09-29
Publication date: 1985-04-26
Also published as: JPH0337198Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ａ、　ｂ〜第４図は本考案の一実施例を示・　す
図で、第１図ａ、　ｂはＶＴＲのカセットハウジングの
構成を示す平面図と側面図、第２図ａ、　ｂは磁気テー
プ巻回部位に対する順次点灯−次元ＬＥＤアレイとフォ
トダイオードアレイとの配置関係を示す平面図と側面図
、第３図は磁気テープ残量表示手段を示すブロック図、
第４図は作用を説明するための図、第５図および第６図
は本考案の他あ実施例を示す図で、第５図はカセットハ
ウジングの平面図、第６図は磁気テープ残量表示手段を
示すブロック図である。１・・・・・・カセットハウジング、３・・・・・・上
部カバー、ｌｌａ、ｌｌｂ・・・・・・リール台、２０
・・・・・・供給リール、２１・・・・・・磁気テープ
巻回部位、３０・・・・・・順次点灯−次元ＬＥＤアレ
イ、３１．３２〜・・・・・・ＬＥＤ、４ｆ）・・・・
・・フォトダイオードアレイ、４１．４２〜・・・・・
・フォトダイオード、１００・・・・・・表示用ＬＥＤ
７’レイ、１０１，１０２〜・・・・・・表示用ＬＥＤ
、１２０・・・・・・加電器、１３０・・・・・・テー
プ残量指示計、３００・・・・・・同時点灯型ＬＥＤ。Figures 1a, b to 4 are views showing one embodiment of the present invention, and Figures 1a and b are a plan view and a side view showing the structure of a VTR cassette housing, and Figures 2a and 4 are views showing the structure of a VTR cassette housing. b is a plan view and a side view showing the arrangement relationship between the sequential lighting-dimensional LED array and the photodiode array with respect to the magnetic tape winding region; FIG. 3 is a block diagram showing the remaining amount of magnetic tape display means;
Figure 4 is a diagram for explaining the operation, Figures 5 and 6 are diagrams showing other embodiments of the present invention, Figure 5 is a plan view of the cassette housing, and Figure 6 is the remaining amount of magnetic tape. FIG. 3 is a block diagram showing display means. 1...Cassette housing, 3...Top cover, lla, llb...Reel stand, 20
......Supply reel, 21...Magnetic tape winding part, 30...Sequential lighting-dimensional LED array, 31.32-...LED, 4f)・・・・・・
・・Photodiode array, 41.42～・・・・
・Photodiode, 100...LED for display
7' Ray, 101, 102 ~... Display LED
, 120... Charger, 130... Tape remaining amount indicator, 300... Simultaneous lighting type LED.

Claims

[Scope of utility model registration request]

At the cassette insertion site of the cassette housing, a magnetic tape winding reel in the cassette is provided such that it is arranged linearly along the radial direction of the reel and irradiates the magnetic tape winding site of the reel. a light-emitting body; a light-receiving body comprising a plurality of light-receiving elements arranged in parallel on the light-emitting body so as to receive reflected light from the magnetic tape winding portion of the light emitted from the light-emitting body; and each light-receiving element of the light-receiving body. 1. A magnetic tape remaining amount detecting device comprising means for displaying a remaining amount of magnetic tape based on an output from the element.