GB398247A - Improvements in or relating to mirror wheels for use in picture telegraph, television and like scanning systems - Google Patents

Improvements in or relating to mirror wheels for use in picture telegraph, television and like scanning systems

Info

Publication number
GB398247A
GB398247A GB736932A GB736932A GB398247A GB 398247 A GB398247 A GB 398247A GB 736932 A GB736932 A GB 736932A GB 736932 A GB736932 A GB 736932A GB 398247 A GB398247 A GB 398247A
Authority
GB
United Kingdom
Prior art keywords
mirror
mirrors
reflected
angle
television
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
GB736932A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB736932A priority Critical patent/GB398247A/en
Priority to DEM123216D priority patent/DE627385C/en
Publication of GB398247A publication Critical patent/GB398247A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
    • H04N3/08—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lenses (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

398,247. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, LEVIN, N., 17, Sutherland Gardens, East Sheen, and WALKER, L. E. Q., 1, Copt Hall Gardens, Mill Hill, all in London. March 11, 1932, No. 7369. [Class 40 (iii).] Light, incident on one reflecting-surface 1 of double-mirror structures or equivalent prisms 6 on a mirror wheel 3, is reflected to a second reflecting-surface 2 before being reflected to a picture screen. The mirror 1 is fixed and - the mirror 2 adjusted to vary the angle between successive double mirrors to provide the different scanning lines. The angle between the mirrors preferably approximates to 60‹, Fig. 7, so that the incident ray is reflected more than twice before emerging. The angle between the mirrors can be kept constant and the mirrors tilted as a whole. When a prism is used, a lens 7 covers the non-reflecting surface.
GB736932A 1932-03-11 1932-03-11 Improvements in or relating to mirror wheels for use in picture telegraph, television and like scanning systems Expired GB398247A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB736932A GB398247A (en) 1932-03-11 1932-03-11 Improvements in or relating to mirror wheels for use in picture telegraph, television and like scanning systems
DEM123216D DE627385C (en) 1932-03-11 1933-03-12 Device for television using a mirror wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB736932A GB398247A (en) 1932-03-11 1932-03-11 Improvements in or relating to mirror wheels for use in picture telegraph, television and like scanning systems

Publications (1)

Publication Number Publication Date
GB398247A true GB398247A (en) 1933-09-11

Family

ID=9831811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB736932A Expired GB398247A (en) 1932-03-11 1932-03-11 Improvements in or relating to mirror wheels for use in picture telegraph, television and like scanning systems

Country Status (2)

Country Link
DE (1) DE627385C (en)
GB (1) GB398247A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441334A (en) * 1965-05-21 1969-04-29 Philco Ford Corp Non-circular rotary scanning means

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488102A (en) * 1966-03-25 1970-01-06 Technical Operations Inc Laser beam scanning apparatus
DE1762125B1 (en) * 1968-04-11 1970-10-29 Technical Operations Inc Optical arrangement for repeated scanning of a line on a television screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441334A (en) * 1965-05-21 1969-04-29 Philco Ford Corp Non-circular rotary scanning means

Also Published As

Publication number Publication date
DE627385C (en) 1936-03-14

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