DE953816C - Device for displaying the timbre of radio receivers - Google Patents

Device for displaying the timbre of radio receivers

Info

Publication number
DE953816C
DE953816C DET7369A DET0007369A DE953816C DE 953816 C DE953816 C DE 953816C DE T7369 A DET7369 A DE T7369A DE T0007369 A DET0007369 A DE T0007369A DE 953816 C DE953816 C DE 953816C
Authority
DE
Germany
Prior art keywords
lamp
timbre
displaying
radio receivers
light guide
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
DET7369A
Other languages
German (de)
Inventor
Rudolf Wantosch
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Priority to DET7369A priority Critical patent/DE953816C/en
Application granted granted Critical
Publication of DE953816C publication Critical patent/DE953816C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like

Description

Es. isst bekannt, in einem Skalenfenster eines Rurndfunkempfängerrs die jeweils eingestellteKlangfarbe optisch erkennbar zu machen. Bei einer bekanntem Anzeigevorrichtung dieser Art ist der Drehknopf des Klangfarbereg4ens, mit einer Scheibe gekuppelt, die von weiß über grau und! dunkel bis schwarz getönt isst und von ,der ein Teil hinter einem Ausschnitt -auf der A#bsti,mm,skala erscheint.It. eats known, in a dial window of a radio receiver to make the set tone color visually recognizable. With a well-known The display device of this type is the rotary knob of the tone color control, with a Disk coupled that goes from white to gray and! dark to black tinted and eats from, which appears a part behind a cut-out on the A # bsti, mm, scale.

Der Erfindung fliegt die Aufgabe zugrunde, eine derartige Klangfarbenanzeige deutlicher sichtbar zu machen,. Hierfür ist es notwendig, eine Lichtwirkung zu erzielen. Die Erfindung erspart eine besondere Lampe -für diesen Zweck. Erfindungsgemäß werden die Lichtstrahlen der zur Beleuchtung der A,bstimmskala bereits vorhandenen Lampe ,durch eine auf dem Prinzip der Totalreflexion beruhende Lichtführung zu der Stelle geführt, an der die Anzeige erfolgen soll. Zur Erzielung der Anzeige eist zwischen Lampe: und Lichtführung eine Blende angeordnet, die ,mit ,dem Klangfarberegler gekuppelt ist.The invention is based on the object of such a tone color display to make it more clearly visible. For this it is necessary to achieve a lighting effect. The invention saves a special lamp for this purpose. Be according to the invention the light rays from the lamp that is already in place to illuminate the tuning scale , through a light guide based on the principle of total reflection to the point on which the display is to be made. To achieve the display, there is between Lamp: and light guide arranged a screen, which, coupled with, the tone control is.

Die Abbildungen zeigen ein Ausführungsbeispiel der Erfindung, und zwar die Abb. z in perspektivischer Darstellung und die Abo. z in einer Ansieht von oben.The figures show an embodiment of the invention, and although the Fig. z in perspective and the subscription. z in a respect from above.

Die Lampe, die bereits zur Beleuchtung der nicht dargestellten Abstimmskala dient, wirft .ihr Licht außer auf die Abstimmskala auch in einen Körper K aus durchsichtigem Material, z. B. Polystyrol, welcher so. geformt ist, daß die Lichtstrahl-en durch Totalreflexion an den rechts und' links vorhandenen schrägen Flächen :in =einen zylindrischen Ansatz Z geführt werden und die Vorderfläche dieses An-Satzes. beleuchten. Dieser Ansatz .ist `hinter einem an geeigneter Stehle der Abstimmskala angebrachten Loch angeordnet oder etwas hindiurch geführt. An:,dem Körper K ist eine Blende B aus undurchsichtigem Material -drehbar angeordnet, die mittels des mit dem Klangfarberegler gekuppeliten Seiles S gegen die Wirkung einer Fe der F mehr oder weniger vor die Lampe L geschoben werden kann.The lamp that is already used to illuminate the tuning scale, not shown serves, throws its light not only on the tuning scale but also in a body K made of transparent Material, e.g. B. polystyrene, which so. is shaped that the light rays through Total reflection on the inclined surfaces on the right and left: in = one cylindrical approach Z are performed and the front surface of this at-set. illuminate. This approach. Is attached to a suitable stand of the tuning dial Hole arranged or something led through. An:, the body K is an aperture B made of opaque material - rotatably arranged by means of the with the tone control coupled rope S against the action of a Fe the F more or less in front of the Lamp L can be pushed.

Claims (1)

PATENTANSPRUCH: Einrichtung zur Anzeige der Klangfarbe bei Rundfunkempfängern, bei der bei dunkler Klangfarbe eine dunkle Fläche und bei heller Klangfarbe eine helle Fläche erseheint, dadurch gekennzeichnet, daß die Udhtstrafhlen ,der zur Beleuchtung der Abstimmskal-a dienenden Lampe durch eine auf dem Prinzip der Totalreflexion beruhende Lichtführung zur der Stelle geführt werden, an der die Anzeige erfolgen soll, und ,dsaß zwischen Lampe und Lichtführung eine Blende angeordnet ist, ,die mit dem Klangfarberegler gekuppelt ist. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 634 334; österreichische Patentschrift Nr. 1,48 347.PATENT CLAIM: Device for displaying the timbre of radio receivers, in the case of a dark tone color a dark area and in the case of a light tone color one bright surface is seen, characterized in that the Udht rays, which are used for lighting the tuning scale a lamp by a lamp based on the principle of total reflection based light guide to the point at which the display takes place should, and, a diaphragm is arranged between the lamp and the light guide, which is coupled to the tone control. Publications considered: German U.S. Patent No. 634,334; Austrian patent specification No. 1.48 347.
DET7369A 1953-02-07 1953-02-07 Device for displaying the timbre of radio receivers Expired DE953816C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET7369A DE953816C (en) 1953-02-07 1953-02-07 Device for displaying the timbre of radio receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET7369A DE953816C (en) 1953-02-07 1953-02-07 Device for displaying the timbre of radio receivers

Publications (1)

Publication Number Publication Date
DE953816C true DE953816C (en) 1956-12-06

Family

ID=7545565

Family Applications (1)

Application Number Title Priority Date Filing Date
DET7369A Expired DE953816C (en) 1953-02-07 1953-02-07 Device for displaying the timbre of radio receivers

Country Status (1)

Country Link
DE (1) DE953816C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430993A1 (en) * 1984-08-23 1986-03-06 Miele & Cie GmbH & Co, 4830 Gütersloh OPTICAL LEVEL INDICATOR FOR DIAL SWITCHES OF HOUSEHOLD APPLIANCES, ESPECIALLY HERDS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE634334C (en) * 1934-07-21 1936-08-24 Philips Patentverwaltung Scale for radios and similar devices
AT148347B (en) * 1935-04-10 1937-01-11 Minerva Radio W Wohleber & Co Device for displaying the respective width of the frequency band passed by a variable filter, in particular for radio receivers.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE634334C (en) * 1934-07-21 1936-08-24 Philips Patentverwaltung Scale for radios and similar devices
AT148347B (en) * 1935-04-10 1937-01-11 Minerva Radio W Wohleber & Co Device for displaying the respective width of the frequency band passed by a variable filter, in particular for radio receivers.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430993A1 (en) * 1984-08-23 1986-03-06 Miele & Cie GmbH & Co, 4830 Gütersloh OPTICAL LEVEL INDICATOR FOR DIAL SWITCHES OF HOUSEHOLD APPLIANCES, ESPECIALLY HERDS

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