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GB380473A - Improvements in and relating to the production of reflecting surfaces - Google Patents

Improvements in and relating to the production of reflecting surfaces

Info

Publication number
GB380473A
GB380473A GB16401/31A GB1640131A GB380473A GB 380473 A GB380473 A GB 380473A GB 16401/31 A GB16401/31 A GB 16401/31A GB 1640131 A GB1640131 A GB 1640131A GB 380473 A GB380473 A GB 380473A
Authority
GB
United Kingdom
Prior art keywords
membrane
reflecting
ring
electrodes
desired configuration
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
GB16401/31A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB16401/31A priority Critical patent/GB380473A/en
Priority to FR733618D priority patent/FR733618A/en
Publication of GB380473A publication Critical patent/GB380473A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Peptides Or Proteins (AREA)

Abstract

380,473. Television receivers. MULLER, C., 86, Soorstrasse, Charlottenburg, Berlin.. June 4, 1931, No. 16401. [Class 40 (iii).] In apparatus for radiation control, or for measuring &c., utilizing the alteration of form of a reflecting membrane surface, a membrane of metal or other sheet material is used which is stretched within its rigidly held margin by additional stretching means so as to have a surface which is completely plane or has a determined curvature. The thickness of the membrane is preferably less than .001 mm. In the simple form shown in Fig. 1 a metal skin m which is .00015 mm. thick in the centre and has a thickened rim r rests on a ring s. The weight of the thickened rim stretches the part within the ring s to produce a perfectly plane surface. A number of coaxial supporting rings may be used instead of the single one shown. Fig. 5 shows how a curved reflecting surface may be produced. The marginal tensioning of the skin m is controlled by screws b, c and the central portion is controlled by magnetic, electrostatic &c. forces applied by means of an adjustablymounted body M. The space between the reflector m and body M may comprise a gaseous or liquid cushion. Fig. 11 shows one manner of producing the desired configuration of the reflecting membrane electrostatically. The membrane m is supported on the ring s between two electrodes d, d<1> which are connected to opposite terminals of a source of potential, the membrane itself being connected to an intermediate point. By suitable disposition of one or more electrodes, any desired configuration of the reflecting surface can be obtained. The reflecting membrane produced as above described may be used in light control device employed in the telegraphic transmission of pictures for the conversion of electrical and magnetic impulses into light variations.
GB16401/31A 1931-06-04 1931-06-04 Improvements in and relating to the production of reflecting surfaces Expired GB380473A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB16401/31A GB380473A (en) 1931-06-04 1931-06-04 Improvements in and relating to the production of reflecting surfaces
FR733618D FR733618A (en) 1931-06-04 1931-06-13 Improvements to reflective surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB16401/31A GB380473A (en) 1931-06-04 1931-06-04 Improvements in and relating to the production of reflecting surfaces
FR733618T 1931-06-13

Publications (1)

Publication Number Publication Date
GB380473A true GB380473A (en) 1932-09-05

Family

ID=10076652

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16401/31A Expired GB380473A (en) 1931-06-04 1931-06-04 Improvements in and relating to the production of reflecting surfaces

Country Status (2)

Country Link
FR (1) FR733618A (en)
GB (1) GB380473A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301624A (en) * 1962-07-12 1967-01-31 Jr Herbert A Morriss Protective optical system with offset light path and fusible optical mirror
US3322483A (en) * 1965-06-28 1967-05-30 Harry S Jones Electrostatically-curved membrane type mirror
US3521943A (en) * 1966-09-30 1970-07-28 Herman F Kelderman Apparatus for generating aspheric reflecting surfaces useful for correcting spherical aberration
US4059346A (en) * 1976-06-30 1977-11-22 Grumman Aerospace Corporation Controlled focus mirror with rim controlled flexure
US4093351A (en) * 1976-03-15 1978-06-06 Perkins Charles W Controlled flexible membrane reflector
US4097126A (en) * 1975-06-10 1978-06-27 Siemens Aktiengesellschaft Optical layer device with reflecting surface on collodion foil
US4130832A (en) * 1977-07-11 1978-12-19 Bolt Beranek And Newman Inc. Three-dimensional display
US4656484A (en) * 1985-08-05 1987-04-07 Sperry Corporation Radar reflector and scanner with electromagnetic programmable drive
US4822155A (en) * 1986-09-18 1989-04-18 University Of Strathclyde Mirror assembly with flexible membrane
US5109300A (en) * 1984-02-08 1992-04-28 University Of Strathclyde Variable focal length mirror assembly including a flexible membrane
WO2012150470A1 (en) * 2011-05-04 2012-11-08 Thales Holdings Uk Plc Thin film mirror

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301624A (en) * 1962-07-12 1967-01-31 Jr Herbert A Morriss Protective optical system with offset light path and fusible optical mirror
US3322483A (en) * 1965-06-28 1967-05-30 Harry S Jones Electrostatically-curved membrane type mirror
US3521943A (en) * 1966-09-30 1970-07-28 Herman F Kelderman Apparatus for generating aspheric reflecting surfaces useful for correcting spherical aberration
US4097126A (en) * 1975-06-10 1978-06-27 Siemens Aktiengesellschaft Optical layer device with reflecting surface on collodion foil
US4093351A (en) * 1976-03-15 1978-06-06 Perkins Charles W Controlled flexible membrane reflector
US4059346A (en) * 1976-06-30 1977-11-22 Grumman Aerospace Corporation Controlled focus mirror with rim controlled flexure
US4130832A (en) * 1977-07-11 1978-12-19 Bolt Beranek And Newman Inc. Three-dimensional display
US5109300A (en) * 1984-02-08 1992-04-28 University Of Strathclyde Variable focal length mirror assembly including a flexible membrane
US4656484A (en) * 1985-08-05 1987-04-07 Sperry Corporation Radar reflector and scanner with electromagnetic programmable drive
US4822155A (en) * 1986-09-18 1989-04-18 University Of Strathclyde Mirror assembly with flexible membrane
WO2012150470A1 (en) * 2011-05-04 2012-11-08 Thales Holdings Uk Plc Thin film mirror
US9457507B2 (en) 2011-05-04 2016-10-04 L-3 Communications Link Simulation And Training Uk Limited Thin film mirror

Also Published As

Publication number Publication date
FR733618A (en) 1932-10-08

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