DE6932962U - SUN PROTECTION LENS OR SUN PROTECTION LENS - Google Patents
SUN PROTECTION LENS OR SUN PROTECTION LENSInfo
- Publication number
- DE6932962U DE6932962U DE19696932962 DE6932962U DE6932962U DE 6932962 U DE6932962 U DE 6932962U DE 19696932962 DE19696932962 DE 19696932962 DE 6932962 U DE6932962 U DE 6932962U DE 6932962 U DE6932962 U DE 6932962U
- Authority
- DE
- Germany
- Prior art keywords
- sun protection
- protection lens
- absorber
- lens
- carbon black
- 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
Links
- 230000037072 sun protection Effects 0.000 title claims description 17
- 239000006096 absorbing agent Substances 0.000 claims description 7
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 241000872198 Serjania polyphylla Species 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 13
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 208000020564 Eye injury Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
- Glass Compositions (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
DR. HANS GÜNTHER KIONKA 62 WIESbADEN, den DR. HANS GÜNTHER KIONKA 62 WIESbADEN, the
Telefon 372050Telephone 372050
JENAer GLASWERK 3 G 78, Ki/Re.JENAer GLASWERK 3 G 78, Ki / Re.
SCHOTT & GEN.SCHOTT & GEN.
6500 Mainz
Hattenbergstraße 10 6500 Mainz
Hattenbergstrasse 10
Sonnenschutzscheibe oder Sonnenschutz- BrillenlinseSun protection screen or sun protection glasses lens
Die Erfindung bezieht sich auf eine Sonnenschutzscheibe oder Sonnenschutz- Brillenlinse.The invention relates to a sun protection screen or sun protection spectacle lens.
Sonnenbrillen aus Glas absorbieren weitgehend den die Augen schädigenden ultravioletten Anteil des Sonnenlichtes, mindern die Durchlässigkeit für das sichtbare Licht in verschieden gewünschten Maßen, wobei eine angenehme Farbtönung erreicht wird, und absorbieren auch einen wesentlichen Anteil des ebenfalls die Augen schädigenden infraroten Anteils des Sonnenlichtes. Sonnenschutzbrillen aus Glas sind arm an Streulicht und wisch fest. Ihre Nachteile sind: das hohe spezifische Gewicht des Glases, seine Sprödigkeit und die damit verbundene Bruchgefahr, wobei die Gefahr von Augen Verletzungen ein wesentlicher Faktor ist, und das leichte Beschlagen.Glass sunglasses largely absorb the ultraviolet portion of sunlight which is harmful to the eyes the permeability for visible light in various desired dimensions, whereby a pleasant color shade is achieved and also absorb a significant proportion of the infrared part of sunlight, which is also harmful to the eyes. Glass sun protection glasses are poor in scattered light and smudge-proof. Their disadvantages are: the high specific Weight of the glass, its brittleness and the associated risk of breakage, with the risk of eye injuries essential factor is and the easy fogging.
Unter den auf dem Markt befindlichen Kunststoff- Sonnenschutzbrillen haben die aus polymerisiertem Diäthylenglykol-diallylkarbonat (abgekürzt Allylkarbonat genannt) bestehenden die günstigsten Eigenschaften. Mit anderen Kunststoffen gemeinsam haben sie gegenüber Glas den Vorteil des niedrigen spezifischen Gewichtes, des geringen Beschlagens und der nahezu völligenAmong the plastic sun protection glasses on the market have those made from polymerized diethylene glycol diallyl carbonate (abbreviated as allyl carbonate) have the most favorable properties. In common with other plastics compared to glass, they have the advantage of a low specific weight, low fogging and almost complete
* β* β
Beseitigung der Bruchgefahr bei normal er v/eise vorkommenden Beanspruchungen. Vorteilhaft gegenüber allen anderen Kunststoffen ist die erhöhte Wischfestigkeit, die jedoch nicht die des Glases erreicht. Viährend die gewünschten Absorptionseigenschaften im ultravioletten und sichtbaren Spelctralbereich durch auf dem Markt befindliche Kunststoff- Sonnenschutzbrillen hinreichend gut erreicht werden - die UV- Absorption wird durch zugesetzte UV- Absorber herbeigeführt - gibt es bislang keine Kunststoffbrillen, die gleichzeitig und in gleichem Maße den infraroten Anteil absorbieren, wie es bei Gläsern der Fall ist.Elimination of the risk of breakage in normal occurrences Stresses. The advantage over all other plastics is the increased smear resistance, but it is not that of the glass. During the desired absorption properties in the ultraviolet and visible spectral range can be achieved sufficiently well by the plastic sun protection glasses on the market - the UV absorption is brought about by added UV absorbers - so far there have been no plastic glasses that work at the same time and to the same extent absorb the infrared component, as is the case with glasses.
Es ist an sich bekannt, daß Ruß die Eigenschaft der IR- Absorption besitzt. Man war aber der Meinung, daß feinstgemahlener Ruß sehr leicht agglomeriert, wodurch die Teilchen größer als Lichtwellcnlänge werden und zu Streulicht führen, was für Sonnenschutzscheiben oder Sonnenschutz- Brillenlinsen unzulässig ist. Diese Gefahr der Agglomeration wurde besonders gefürchtet bei Polymerisationen, wie beispielsweise beim Gießverfahren, mittels dessen Allylcarbonatbrillenlinsen hergestellt werden. Dieses Vorurteil führte dazu, daß Ruß enthaltendes Allylcarbonat nicht als Sonnenschutzelement mit hoher Streulichtarmut auf dem Markt war.It is known per se that carbon black has the property of IR absorption owns. But it was believed that finely ground carbon black agglomerated very easily, making the particles larger than Light wavelength and lead to scattered light, what for Sun protection glasses or sun protection glasses lenses is not permitted. This agglomeration danger was particularly acute Dreaded in polymerizations, such as in the casting process, made by means of the allyl carbonate spectacle lenses will. This prejudice led to the fact that allyl carbonate containing carbon black was not used as a sunscreen element with high There was little stray light on the market.
Ls wurde nun gefunden, daß es durchaus gelingt, auch Ruß für den genannten Zweck zu verwenden. Die Erfindung besteht somit in einer Sonnenschutzisheibe oder Sonnenschutz- Brillenlinse aus polymerisiertem, UV- Absorber und IR- Absorber enthaltendem Allylcarbonat, mit dem Kennzeichen, daß als IR-Absorber hoch streulichtarmer Ruß eingebaut ist.It has now been found that it works, even soot to use for the stated purpose. The invention thus consists in a sun protection lens or sun protection spectacle lens made of polymerized, UV absorber and IR absorber containing allyl carbonate, with the characteristic that carbon black with a high level of low-scattering light is incorporated as an IR absorber.
Der nach DIN 4646 Blatt 2 bestimmte reduzierte Leuchtdichtekoeffizient (Streulichtmessung) beträgt 0,096 + 18 %, womitThe reduced luminance coefficient determined in accordance with DIN 4646 Part 2 (Scattered light measurement) is 0.096 + 18%, which means
29622962
die Streulichtarmut allen Ansprüchen gerecht wird.the lack of scattered light meets all requirements.
Durch Wahl der Konzentration des Rußes können drei Absorptionsstufen eingestellt werden, die in der Figur 1 wiedergegeben sind.By choosing the concentration of the carbon black, three levels of absorption can be achieved are set, which are shown in FIG.
Figur 2 zeigt eine Sonnenschutzscheibe gemäß der Erfindung, Figur 3 eine Sonnenschutz- Brillenlinse gemäß der Erfindung.FIG. 2 shows a sun protection pane according to the invention, and FIG. 3 shows a sun protection spectacle lens according to the invention.
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19696932962 DE6932962U (en) | 1969-08-20 | 1969-08-20 | SUN PROTECTION LENS OR SUN PROTECTION LENS |
| GB4016170A GB1275354A (en) | 1969-08-20 | 1970-08-20 | Screen or spectacle lens for protection against sunlight |
| FR7030664A FR2059063A7 (en) | 1969-08-20 | 1970-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19696932962 DE6932962U (en) | 1969-08-20 | 1969-08-20 | SUN PROTECTION LENS OR SUN PROTECTION LENS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE6932962U true DE6932962U (en) | 1969-12-11 |
Family
ID=6604444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19696932962 Expired DE6932962U (en) | 1969-08-20 | 1969-08-20 | SUN PROTECTION LENS OR SUN PROTECTION LENS |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE6932962U (en) |
| FR (1) | FR2059063A7 (en) |
| GB (1) | GB1275354A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3828382A1 (en) * | 1988-08-20 | 1990-02-22 | Zeiss Carl Fa | SUN PROTECTION FILTER |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0805363B1 (en) * | 1996-04-29 | 2001-09-05 | VISUAL OPTICAL SYSTEM di Casati Carla & C. s.a.s. | Photochromatic polymeric material for lenses and screens with filtering properties for near IR radiation |
-
1969
- 1969-08-20 DE DE19696932962 patent/DE6932962U/en not_active Expired
-
1970
- 1970-08-20 GB GB4016170A patent/GB1275354A/en not_active Expired
- 1970-08-20 FR FR7030664A patent/FR2059063A7/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3828382A1 (en) * | 1988-08-20 | 1990-02-22 | Zeiss Carl Fa | SUN PROTECTION FILTER |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1275354A (en) | 1972-05-24 |
| FR2059063A7 (en) | 1971-05-28 |
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