JPS5740765A - Optical cassette tape - Google Patents

Optical cassette tape

Info

Publication number
JPS5740765A
JPS5740765A JP55115843A JP11584380A JPS5740765A JP S5740765 A JPS5740765 A JP S5740765A JP 55115843 A JP55115843 A JP 55115843A JP 11584380 A JP11584380 A JP 11584380A JP S5740765 A JPS5740765 A JP S5740765A
Authority
JP
Japan
Prior art keywords
hole
housing
tape
optical head
airtight
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
JP55115843A
Other languages
Japanese (ja)
Inventor
Shigeru Asami
Akihiko Kuroiwa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP55115843A priority Critical patent/JPS5740765A/en
Publication of JPS5740765A publication Critical patent/JPS5740765A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To read recorded information by a transmission system by providing a housing with a hole, wherein the photodetecting element of an external device is accommodated, opposite an optical head across a tape. CONSTITUTION:A housing 10 has airtight structure substantially. A rotary mechanism has airtight bearing structure including a collar to prevent dust from entering through the hole of a reel 12. An optical head 20 composed of a lens through which a tape 15a is irradiated with writing and reading light from an external deivce is provided between guides 14a and 14b. A hole 11 penetrating top and reverse surfaces 10a and 10b of the housing 10, having a hole wall 11, and holding the housing 10 airtight is formed opposedly to the optical head 20 across the tape 15a. In recording and reproduction, a photodetecting element 40 provided to the external device is contained in the hole 11.
JP55115843A 1980-08-25 1980-08-25 Optical cassette tape Pending JPS5740765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55115843A JPS5740765A (en) 1980-08-25 1980-08-25 Optical cassette tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115843A JPS5740765A (en) 1980-08-25 1980-08-25 Optical cassette tape

Publications (1)

Publication Number Publication Date
JPS5740765A true JPS5740765A (en) 1982-03-06

Family

ID=14672496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55115843A Pending JPS5740765A (en) 1980-08-25 1980-08-25 Optical cassette tape

Country Status (1)

Country Link
JP (1) JPS5740765A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62116706U (en) * 1986-01-17 1987-07-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62116706U (en) * 1986-01-17 1987-07-24
JPH054802Y2 (en) * 1986-01-17 1993-02-08

Similar Documents

Publication Publication Date Title
KR860009396A (en) Cassette type record reproduction device
NO154478C (en) CLEANING CASSETT FOR CLEANING OPERATIVE ELEMENTS IN A TAPE CASSETTE PLAYBACK AND / OR RECORDER DEVICE.
JPS56154720A (en) Film cassette
KR860002007U (en) Recording media storage cassette
DE3275672D1 (en) Tape cassette, particularly a magnetic-tape cassette with viewing windows
GB1513311A (en) Tape cassette
JPS5740765A (en) Optical cassette tape
US4079431A (en) Indicia display and audio storage cassette
DE3766332D1 (en) SQUARE-SHAPED CASSETTE FOR TAPE-SHAPED RECORD CARRIER AND HOUSING PART THEREOF.
JPS5740763A (en) Optical cassette tape
EP0540352A3 (en) Data recording/reproducing device
SE8702039D0 (en) COVER FOR DISCOVERED RECORDER
EP0026550A3 (en) A case with an information carrier consisting of a tape one side of which has a structure carrying optically readable information, as well as an apparatus for writing, reading or erasing such information
MX172977B (en) IMPROVEMENTS IN CASSETTES OF MAGNETOFONICA TAPE
JPS57123503A (en) Improving method for characteristics of tape recorder
DE3580800D1 (en) RECORDING AND PLAYBACK DEVICE FOR TAPE CASSETTES.
ES454999A1 (en) Magnetic-tape cassette and a recording and/or playback apparatus for use with the cassette
JPS5348504A (en) Optical recorder/reproducer
ATE162330T1 (en) RECORD CASSETTE
JPS5328403A (en) Optical information reader of disc from magnetic recording media
JPS58190885U (en) Colored reel hub for video cassettes
JPS61196489A (en) Reproducing device for cassette type tape shape recorder
JPS6154089A (en) Tape cassette
JPS6467780A (en) Optical information recording medium
JPS61196488A (en) Tape cassette