GB350531A - Improvements in or relating to apparatus for effecting optical recording and reproducing of sound or other variations - Google Patents

Improvements in or relating to apparatus for effecting optical recording and reproducing of sound or other variations

Info

Publication number
GB350531A
GB350531A GB777330A GB777330A GB350531A GB 350531 A GB350531 A GB 350531A GB 777330 A GB777330 A GB 777330A GB 777330 A GB777330 A GB 777330A GB 350531 A GB350531 A GB 350531A
Authority
GB
United Kingdom
Prior art keywords
light
sound
record
reproducing
series
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
GB777330A
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.)
EUGENE WENDER
SOMA PRISNER
Original Assignee
EUGENE WENDER
SOMA PRISNER
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 EUGENE WENDER, SOMA PRISNER filed Critical EUGENE WENDER
Priority to GB777330A priority Critical patent/GB350531A/en
Publication of GB350531A publication Critical patent/GB350531A/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 Head (AREA)

Abstract

350,531. Recording and reproducing sound &c. PRISNER, S. and WENDER, E., 1, Mowbray Road, Kilburn, London. March 10, 1930, No. 7773. [Class 40 (ii).] Apparatus for effecting exploration of a surface by a spot of light in a series of parallel straight lines in recording or reproducing sound or other variations comprises means for focusing a spot of light upon a helical or curved mirror mounted upon a rotating drum or disc respectively. As shown in Fig. 1, a helical mirror 8, disposed normally to the surface of a drum 7, reflects light from a source 4 on to a moving light-sensitive film 9 so as to produce a record in the form of a series of parallel lines of the sounds impressed on a microphone 1. The microphone is connected with an amplifier 2 and light relay 3 whereby the intensity of the light from the source 4 is varied. For reproducing from a sound record the light beam is caused to explore a record 9, Fig. 2, in a series of parallel lines and after modulation by such record is adapted to fall upon a second mirror 10 helically arranged on a drum 11 and is reflected therefrom on to a photo-electric cell 12. If desired, curved prisms may be employed instead of mirrors. Kinematograph pictures may be interposed between adjacent sound-trace lines. Specifications 332,615 and 337,151, [both in Class 40 (ii), Phonographs &c.], are referred to. The Provisional Specification describes also the use of rotary lenses in place of mirrors.
GB777330A 1930-03-10 1930-03-10 Improvements in or relating to apparatus for effecting optical recording and reproducing of sound or other variations Expired GB350531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB777330A GB350531A (en) 1930-03-10 1930-03-10 Improvements in or relating to apparatus for effecting optical recording and reproducing of sound or other variations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB777330A GB350531A (en) 1930-03-10 1930-03-10 Improvements in or relating to apparatus for effecting optical recording and reproducing of sound or other variations

Publications (1)

Publication Number Publication Date
GB350531A true GB350531A (en) 1931-06-10

Family

ID=9839430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB777330A Expired GB350531A (en) 1930-03-10 1930-03-10 Improvements in or relating to apparatus for effecting optical recording and reproducing of sound or other variations

Country Status (1)

Country Link
GB (1) GB350531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131421B (en) * 1952-01-14 1962-06-14 Telefonbau Arrangement for intermittent scanning obliquely to the direction of movement of a tape-shaped magnetogram carrier by means of a rotating cylindrical transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131421B (en) * 1952-01-14 1962-06-14 Telefonbau Arrangement for intermittent scanning obliquely to the direction of movement of a tape-shaped magnetogram carrier by means of a rotating cylindrical transducer

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