DE1472515A1 - Concave mirror made of plastic - Google Patents

Concave mirror made of plastic

Info

Publication number
DE1472515A1
DE1472515A1 DE19651472515 DE1472515A DE1472515A1 DE 1472515 A1 DE1472515 A1 DE 1472515A1 DE 19651472515 DE19651472515 DE 19651472515 DE 1472515 A DE1472515 A DE 1472515A DE 1472515 A1 DE1472515 A1 DE 1472515A1
Authority
DE
Germany
Prior art keywords
concave mirror
layer
thermoplastic
plastic
mirror made
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.)
Pending
Application number
DE19651472515
Other languages
German (de)
Inventor
Hardell Dipl-Ing Alexander
Michael Arndt
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of DE1472515A1 publication Critical patent/DE1472515A1/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/08Mirrors
    • G02B5/10Mirrors with curved faces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/22Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/22Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

l'Hohls-piegel aus Kunststoff " Die Ertindung bezieht sich auf einen Hohlspiegel mit einer für Scheinwerfer ausreichenden Richtgenauigkeit unter Verwendung von Kunststoffen.l'Hohls-Piegel aus Kunststoff " The invention relates to a concave mirror with a directional accuracy sufficient for headlights using plastics.

Es sind Künststoftepiegel bekenn-';O-. jedoch sind ihre optischen Qualitilten zum Peil sehr gering. Re gibt Kunststoffe, vor allem MiermopIeste, mit denen sieh vr-rlibltnismässig leicht Oberflächen von hoher rüte herstellen lesaen die ausserdem gut zu metelli- -s--eren £;-*nd. Der Nachteil von Thermoplasten besteht aber-darin, dase 9-*e für höhere Temperaturen bakanntlich nicht genÜgend formbestYadig uind und bnter Umständtz sogar bei Raumtemperatur unter M<ger anhaltenden Felast-ungen zum Fliessen neigen. Andere Künstvjoffe wiederum" die bedeutend tem.9eraturunempfindlicher sindl wie z.B. Giesaberz, bereiten bei der Herstellung einer einwandfreien Oberfläche =ÜberwindlichE 33chwierigkeiten. Ausserdem ist die Haftung von später aufgebracbt."#m Spiegelmetall unsicher. There are artificial mirrors confess - '; O-. however, their optical qualities for the bearing are very poor. Re are plastics, especially MiermopIeste, which look vr-rlibltnismässig easily finishes of high Rüte produce lesaen the also good to metelli- -s - £ older - * nd. The disadvantage of thermoplastics, however, is that they are not known to be sufficiently dimensionally stable for higher temperatures and, under certain circumstances, tend to flow even at room temperature under moderate stresses. Other artists, on the other hand, "who are significantly less sensitive to temperature, such as Giesaberz, create difficulties in the production of a perfect surface = surmountable. In addition, the adhesion is worn out later."

Die Erfindung hat siab die Aufgabe gestellt, diese Schwierigkeiten zu umgehen und schlägt eineit Hohlapiegel aus Kunststoff mi-#, einer für Zielscheinwerfer ausreichenden Ricbtgenauigkeit vor. Die Erfindung besteht darin, deas eine als Spiegelfläcbe dienende meteilL,-elerta SchUht aus einen Thermoplast auf eine aus glas.teier-verstärkf"i m Gießbarz bestehende Träger- sebele aufgebea-,ht ist. Wepri der Tempereturempfindlicb- keit der als eieg-elfläcbe i%ienenden Thermoplastschicht wird diese auZ aire forrabesländige, gleafaserverstärkte Gießherzschale aufgebracht, die denn als Trägersehale dient. Die Formeteifigkeit der Träf:erschicht wird erreicht in an sich bekannte--e Weise durch )Unbau einer Zwischenweben- schicht (sog. Sendwichbauw3.- se) oder durch Verrippuzig. Ein erfindung;3gemäß so aufi3tbauter Kunstatoffspiegel weist die gewünscht.:e )pt.ische Zu,a. ität auf , obine daß durch Wärine- tiiuwirkung eine Fcrmändt%,.r(i-ii berbeigeführt wird. Bzi Karstellu.,ig de--i SpiegeLt. ka.nri einmialso vorgfgeiig."*r ,sic-rdi-u,g daß dLe als:, Spieg,3L1lärhe vorgesehene ette l#1.1"-,rm#.iplast uid die Trägi#r3ihBle- getll!nnt hergeS1P.Ii.t Urjd M,-, einer Klezilerbindung verbunden werden. EJne andere KiigLi(.#bkeit be ji eht derii-, t dgß die zLmäch#A Li Spritzgußverfahren mit der S--hicht aas' Tiie.z--Mtplaot äb i-, zogen wi2d., Dia Vorteile de.s -vorgesrhl.,3j#enen bertehen daß ar billiger in ihr flerstellung, geringer im Gewicht und u-aempfindliche-,:# gegan Stöße oder soritige meche, sebte Bela:3 w#.gl##i i.3t, v'; Glas- Sein für rl.zkt Sich di#I, MechaLilei-#i UneapfindlAc12k##it i)ucl da-3 "#erirge Gew,;.t,ht d:i-,-; )##Tit pitegel« a v; A.,i der Zeichr;ung :.ot eir E#t iit-rit dea 11:Diil-ipiegelj dergijLttl"Llt. At- einer .3i.if; (einem gl& -i#ve,r-qtärk:Lr. Gießb#3r2; "e3ttbt.t, ist ":,ine 11 Aufgg!'#)itichf" eif dile (11eNlIte befii;det iAch im de,' The invention has set itself the task of circumventing these difficulties and proposes a hollow mirror made of plastic with sufficient accuracy for target headlights. The invention consists in using a mirror surface Serving metal, -elerta shoes made of a thermoplastic a girder made of glass. sebele gives up, ht is. Wepri the temperature-sensitive the thermoplastic layer acting as a self-contained surface this auZ aire forrabesländige, glass fiber reinforced Cast heart shell applied, which then serves as a carrier shell. The form rigidity of the surface is reached in on known - e way through) building an interweave layer (so-called Sendwichbauw3.- se) or by Verrippuzig. A plastic mirror constructed in accordance with this invention has the desired.: e) pt.ische zu, a. ity to, obine that by Wärine- tiiuffekt a Fcrmändt% ,. r (i-ii is brought about. Bzi Karstellu., Ig de - i SpiegeLt. ka.nri once so provisionally. "* r , sic-rdi-u, g that dLe as :, mirror, 3L1lärhe ette l # 1.1 "-, rm # .iplast uid the carrier # r3ihBle- getll! nnt hergeS1P.Ii.t Urjd M, -, can be connected with a Klezil connection. EJne other KiigLi (. # Bkeit be ji eht deri, t dgß die zLmäch # A Li injection molding process with the S - hicht aas' Tiie.z - Mtplaot äb i-, pulled wi2d., The advantages of the pre-cut, 3-year-old survive that ar cheaper in their production, lower in the Weight and u-a-sensitive -,: # Gegan shocks or soritige meche, sebte Bela: 3 w # .gl ## i i.3t, v '; Glass- Its for rl.zkt sich di # I, MechaLilei- # i UneapfindlAc12k ## it i) ucl da-3 "#erirge Gew,;. t, ht d: i -, -;) ## Tit pitegel« a v; A., i of the drawing: .ot eir E # t iit-rit dea 11: Diil-ipiegelj dergijLttl "Llt. At- a .3i.if; (a gl & -i # ve, r-qtärk: Lr. Gießb # 3r2; "e3ttbt.t, is":, ine 11 Aufgg! '#) Itichf " eif dile (11eNlIte befii; det iAch im de, '

Claims (1)

Patentensprüche:
Hohlspiegel mit einer für Zi4-lach-einwerfer ausreichenden Richtgeneuigkeit unter,V,3rw4,erdung von Kunststoffen, dadurch gekennzeichnet, daß eine mi,#-; ei Lner Spiegelmetellschicht ver- sehene Schicht aus einem Th(erzopliast auf einer aus glas- feserverstärktem Gießherz bostehenden Trägerschale aufge- bracht ist. 2. Hohlspiegel nach Anspruch 1. dadurch gekennzeichneti-daß als Thermoplast vorzugsweis(t Acryl-Butadien-Styrol Miscb- polymeriset (ABS-17.unstatoff,; vorgesehen iste Verfahren zur Ho-i-.-itellitrig 9-..Les Ilohlspiegels nach Anspruch 1" dadurch ge.keanzeichnat, «nB die Schicht eiüä Thermoplest und die Trägerscheile getrenitt hergestellt und nai-,-hträglich ix, einer Klebverb,.ndtuas verl)unden werden. 4. 'Terfahren zut Her.--,tellung e:.mes Hohlspiegels nach Ansp:r-ueb 1, dadurch gekeniul".-,eichnet, (..aß die zunächst hergestellte Trägerschale im Spritzgußverfahren mit der Schicht aus Thermoplast überzogen wird#
Patent claims:
Concave mirror with one that is sufficient for Zi4-Lach inserters Directional accuracy under, V, 3rw4, grounding of plastics, thereby characterized in that a mi, # -; a mirror metal layer see layer of a th (ore sheet on a glass Reinforced cast heart, the support shell is brought. 2. Concave mirror according to claim 1 characterized-that as thermoplastic preferably (t acrylic-butadiene-styrene mix- polymeriset (ABS-17.unstatoff ,; intended Method for Ho-i -.- itellitrig 9 - .. Les Ilohlspiegel according to claim 1 " thereby indicated," nB the layer of a Thermoplest and the brackets made separately and nai -, - htray ix, an adhesive verb, .ndtuas left). 4. 'Approach to the manufacture, position e: .mes concave mirror according to Ansp: r-ueb 1, thereby gekeniul ".-, calibrates, (..ass the first produced Carrier shell in the injection molding process with the layer Thermoplastic is coated #
DE19651472515 1965-10-29 1965-10-29 Concave mirror made of plastic Pending DE1472515A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0052005 1965-10-29

Publications (1)

Publication Number Publication Date
DE1472515A1 true DE1472515A1 (en) 1969-02-13

Family

ID=7274416

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19651472515 Pending DE1472515A1 (en) 1965-10-29 1965-10-29 Concave mirror made of plastic

Country Status (3)

Country Link
BE (1) BE688347A (en)
DE (1) DE1472515A1 (en)
NL (1) NL6615075A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2244921A1 (en) * 1971-09-24 1973-03-29 Lucas Electrical Co Ltd LAMP REFLECTOR
DE2723304A1 (en) * 1977-05-24 1978-12-07 Bosch Gmbh Robert HEADLIGHT WITH PLASTIC REFLECTOR FOR VEHICLES
FR2420718A1 (en) * 1978-03-20 1979-10-19 Sev Marchal PLASTIC LIGHTING PROJECTOR REFLECTOR AND CORRESPONDING PROJECTOR
FR2422108A1 (en) * 1978-04-05 1979-11-02 Bosch Gmbh Robert Motor vehicle headlight reflector - composed of plastics support body with deep-drawn metallised film laminate as reflecting part
DE2928582A1 (en) * 1978-07-25 1980-02-07 Seima METHOD FOR PRODUCING LIGHT REFLECTORS, PARTICULARLY FOR MOTOR VEHICLE HEADLIGHTS, AND DEVICE FOR IMPLEMENTING IT
EP0385824A1 (en) * 1989-03-03 1990-09-05 Valeo Vision Method for making a reflector of synthetic material for a lighting device
DE4404604A1 (en) * 1994-02-14 1995-08-17 Hella Kg Hueck & Co Plastics lighting reflectors esp. for motor vehicle headlamps

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2244921A1 (en) * 1971-09-24 1973-03-29 Lucas Electrical Co Ltd LAMP REFLECTOR
DE2723304A1 (en) * 1977-05-24 1978-12-07 Bosch Gmbh Robert HEADLIGHT WITH PLASTIC REFLECTOR FOR VEHICLES
FR2420718A1 (en) * 1978-03-20 1979-10-19 Sev Marchal PLASTIC LIGHTING PROJECTOR REFLECTOR AND CORRESPONDING PROJECTOR
FR2422108A1 (en) * 1978-04-05 1979-11-02 Bosch Gmbh Robert Motor vehicle headlight reflector - composed of plastics support body with deep-drawn metallised film laminate as reflecting part
DE2928582A1 (en) * 1978-07-25 1980-02-07 Seima METHOD FOR PRODUCING LIGHT REFLECTORS, PARTICULARLY FOR MOTOR VEHICLE HEADLIGHTS, AND DEVICE FOR IMPLEMENTING IT
FR2432137A1 (en) * 1978-07-25 1980-02-22 Seima PROCESS FOR THE PRODUCTION OF AN OPTICAL REFLECTOR AND PARTICULARLY FOR A MOTOR VEHICLE PROJECTOR AND MACHINE FOR ITS IMPLEMENTATION
EP0385824A1 (en) * 1989-03-03 1990-09-05 Valeo Vision Method for making a reflector of synthetic material for a lighting device
FR2643849A1 (en) * 1989-03-03 1990-09-07 Valeo Vision METHOD FOR MANUFACTURING A SYNTHETIC MATERIAL REFLECTOR FOR A LIGHTING DEVICE
DE4404604A1 (en) * 1994-02-14 1995-08-17 Hella Kg Hueck & Co Plastics lighting reflectors esp. for motor vehicle headlamps

Also Published As

Publication number Publication date
BE688347A (en) 1967-03-31
NL6615075A (en) 1967-05-02

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Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971