GB332679A - Improvements in or relating to sound reproduction by optical means - Google Patents

Improvements in or relating to sound reproduction by optical means

Info

Publication number
GB332679A
GB332679A GB1609429A GB1609429A GB332679A GB 332679 A GB332679 A GB 332679A GB 1609429 A GB1609429 A GB 1609429A GB 1609429 A GB1609429 A GB 1609429A GB 332679 A GB332679 A GB 332679A
Authority
GB
United Kingdom
Prior art keywords
relating
optical means
sound reproduction
phonograms
photoelectric
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.)
Expired
Application number
GB1609429A
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.)
HEINRICH JOHANNES KUCHENMEISTE
Original Assignee
HEINRICH JOHANNES KUCHENMEISTE
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 HEINRICH JOHANNES KUCHENMEISTE filed Critical HEINRICH JOHANNES KUCHENMEISTE
Priority to GB1609429A priority Critical patent/GB332679A/en
Publication of GB332679A publication Critical patent/GB332679A/en
Expired 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

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

332,679. K³chenmeister, H. J. May 24,1929. Optical apparatus, - In means for the reproduction of sounds through photoelectric devices, phonograms from different sources recorded separately act on different parts of a single photoelectric device from which they are reproduced conjointly. As shown, rays of light from sources 5, 6 pass through sound records 1., 2 on a film a and act on parts 7, 8 of a photoelectric cell b, such as a selenium cell. The phonograms 1, 2 may be arranged side by side so that the two occupy onlv the full width of a single photophonogram of the usual kind, each phonogram being about 1 mm. in width. Specification 294,108 is referred to.
GB1609429A 1929-05-24 1929-05-24 Improvements in or relating to sound reproduction by optical means Expired GB332679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1609429A GB332679A (en) 1929-05-24 1929-05-24 Improvements in or relating to sound reproduction by optical means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1609429A GB332679A (en) 1929-05-24 1929-05-24 Improvements in or relating to sound reproduction by optical means

Publications (1)

Publication Number Publication Date
GB332679A true GB332679A (en) 1930-07-31

Family

ID=10071078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1609429A Expired GB332679A (en) 1929-05-24 1929-05-24 Improvements in or relating to sound reproduction by optical means

Country Status (1)

Country Link
GB (1) GB332679A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6552143B2 (en) 2000-02-01 2003-04-22 Daicel Chemical Industries, Ltd. Polymeric compound and resin composition for photoresist

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6552143B2 (en) 2000-02-01 2003-04-22 Daicel Chemical Industries, Ltd. Polymeric compound and resin composition for photoresist

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