JPS6023985U - tape cassette - Google Patents

tape cassette

Info

Publication number
JPS6023985U
JPS6023985U JP11437483U JP11437483U JPS6023985U JP S6023985 U JPS6023985 U JP S6023985U JP 11437483 U JP11437483 U JP 11437483U JP 11437483 U JP11437483 U JP 11437483U JP S6023985 U JPS6023985 U JP S6023985U
Authority
JP
Japan
Prior art keywords
tape cassette
less
abstract
thickness
wavelength
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
JP11437483U
Other languages
Japanese (ja)
Inventor
小川　公夫
Original Assignee
日本ビクター株式会社
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 by 日本ビクター株式会社 filed Critical 日本ビクター株式会社
Priority to JP11437483U priority Critical patent/JPS6023985U/en
Priority to US06/633,377 priority patent/US4740857A/en
Priority to EP84108744A priority patent/EP0137929B1/en
Priority to KR2019840007112U priority patent/KR900003081Y1/en
Priority to DE198484108744T priority patent/DE137929T1/en
Priority to DE8484108744T priority patent/DE3474739D1/en
Publication of JPS6023985U publication Critical patent/JPS6023985U/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Filters (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図及び第２図はビデオ用テープカセットの説明図、
第３図はビデオテープレコーダのテープ端検出手段に用
いられている受光素子の分光感度特性図、第４図は本考
案に係るテープカセットの光反射率のグラフである。Figures 1 and 2 are explanatory diagrams of a video tape cassette;
FIG. 3 is a spectral sensitivity characteristic diagram of a light receiving element used in a tape end detection means of a video tape recorder, and FIG. 4 is a graph of light reflectance of a tape cassette according to the present invention.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外壁の板厚が約１７７１７７１以上となるテープカセッ
トケースを、０．３５ｍｍ厚での光透過率が約０．０５
％以下で、かつ４００〜１ｌ１００ｎの波長の光反射率
が約７％以下にした着色材で構成したことを特徴とする
テープカセット。A tape cassette case with an outer wall thickness of about 1771771 mm or more has a light transmittance of about 0.05 at a thickness of 0.35 mm.
% or less and has a light reflectance of about 7% or less at a wavelength of 400 to 1l100n.
JP11437483U 1983-07-25 1983-07-25 tape cassette Pending JPS6023985U (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP11437483U JPS6023985U (en) 1983-07-25 1983-07-25 tape cassette
US06/633,377 US4740857A (en) 1983-07-25 1984-07-23 Tinted tape cassette having an optical tape sensing construction
EP84108744A EP0137929B1 (en) 1983-07-25 1984-07-24 Tinted tape cassette
KR2019840007112U KR900003081Y1 (en) 1983-07-25 1984-07-24 Tape cassette
DE198484108744T DE137929T1 (en) 1983-07-25 1984-07-24 COLORED MAGNETIC TAPE CASSETTE.
DE8484108744T DE3474739D1 (en) 1983-07-25 1984-07-24 Tinted tape cassette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11437483U JPS6023985U (en) 1983-07-25 1983-07-25 tape cassette

Publications (1)

Publication Number Publication Date
JPS6023985U true JPS6023985U (en) 1985-02-19

Family

ID=30264412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11437483U Pending JPS6023985U (en) 1983-07-25 1983-07-25 tape cassette

Country Status (1)

Country Link
JP (1) JPS6023985U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5864680A (en) * 1981-10-15 1983-04-18 Pioneer Electronic Corp Cassette half

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5864680A (en) * 1981-10-15 1983-04-18 Pioneer Electronic Corp Cassette half

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