DE414170C - Silver mirrors for lighting purposes - Google Patents

Silver mirrors for lighting purposes

Info

Publication number
DE414170C
DE414170C DEJ24684D DEJ0024684D DE414170C DE 414170 C DE414170 C DE 414170C DE J24684 D DEJ24684 D DE J24684D DE J0024684 D DEJ0024684 D DE J0024684D DE 414170 C DE414170 C DE 414170C
Authority
DE
Germany
Prior art keywords
lighting purposes
silver
silver mirrors
mirrors
mirror
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
DEJ24684D
Other languages
German (de)
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.)
ICA AKT GES
Original Assignee
ICA AKT GES
Publication date
Priority to DEJ24684D priority Critical patent/DE414170C/en
Application granted granted Critical
Publication of DE414170C publication Critical patent/DE414170C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material

Description

.Silberspiegel für Beleuchtungszwecke. Bei den für Beleuchtungszwecke dienenden Silberspiegeln wurde bisher die auf der Rückseite des Glaskörpers befindliche Silberschicht gegen Zerstörung durch Wärme oder vor Beschädigungen mechanischer Art durch eine Lackschicht geschützt. Bei einer Temperatur von etwa über aoo° C, wie sie vielfach durch hochkerzige Projektionsglühlampen erzeugt wird und bei denen der als Reflektor dienende Spiegel unmittelbar neben der Lampe angeordnet ist, oder bei Scheinwerferbogenlampen splittert der Lack ab..Silver mirrors for lighting purposes. For those for lighting purposes serving silver mirrors was previously the one on the back of the glass body Silver layer against destruction by heat or against mechanical damage Kind of protected by a layer of varnish. At a temperature of about aoo ° C, as it is often generated by high-candlestick projection light bulbs and where the mirror serving as a reflector is arranged directly next to the lamp, or The paint will chip off on headlight arc lamps.

Die Erfindung beseitigt diesen Übelstand dadurch, daß man die Silberschicht mit einer nachträglich erhärtenden Silikatmasse überstreicht. Die Silikatschicht besteht aus Wasserglas, welches z. B. mit Talkum, Kaolin, Zinkweiß, Kreide oder Bimsstein vermischt ist: Ein mit solch einer Masse vorgenommener Anstrich hält auch den höchstenTemperaturen Stand, die für denselben für die in der Erfindung angegebenen Zwecke in Frage kommt.The invention eliminates this drawback by removing the silver layer coated with a subsequently hardening silicate compound. The silicate layer consists of water glass, which z. B. with talc, kaolin, zinc white, chalk or Pumice stone is mixed: A coat made with such a mass also lasts the highest temperatures stand for the same for those specified in the invention Purposes comes into question.

Claims (1)

PATENT-ANsprucH: Silberspiegel für Beleuchtungszwecke, insbesondere für Spiegelbogenlampen und Projektionsapparate, dadurch gekennzeichnet, daß die Silberschicht (a) mit einem Überzug, bestehend aus einer nachträglich erhärtenden silikathaltigen Masse (b), z. B. Wasserglas mit Talkum, Kaolin, Zinkweiß, Kreide oder Bimsstein, versehen ist. PATENT CLAIM: Silver mirror for lighting purposes, in particular for mirror arc lamps and projection apparatus, characterized in that the silver layer (a) has a coating consisting of a subsequently hardening silicate-containing mass (b), e.g. B. water glass with talc, kaolin, zinc white, chalk or pumice stone is provided.
DEJ24684D Silver mirrors for lighting purposes Expired DE414170C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ24684D DE414170C (en) Silver mirrors for lighting purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ24684D DE414170C (en) Silver mirrors for lighting purposes

Publications (1)

Publication Number Publication Date
DE414170C true DE414170C (en) 1925-05-29

Family

ID=7201912

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ24684D Expired DE414170C (en) Silver mirrors for lighting purposes

Country Status (1)

Country Link
DE (1) DE414170C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE36808E (en) * 1992-04-15 2000-08-08 Oceaneering International, Inc. Portable life support system
EP1251308A2 (en) * 2001-04-19 2002-10-23 Schott Glas Reflector with a layer containing silver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE36808E (en) * 1992-04-15 2000-08-08 Oceaneering International, Inc. Portable life support system
EP1251308A2 (en) * 2001-04-19 2002-10-23 Schott Glas Reflector with a layer containing silver

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