DE293C - Optical glasses with colored stripes to keep out glaring light - Google Patents
Optical glasses with colored stripes to keep out glaring lightInfo
- Publication number
- DE293C DE293C DE293DA DE293DA DE293C DE 293 C DE293 C DE 293C DE 293D A DE293D A DE 293DA DE 293D A DE293D A DE 293DA DE 293 C DE293 C DE 293C
- Authority
- DE
- Germany
- Prior art keywords
- keep out
- optical glasses
- glaring light
- colored stripes
- colored
- 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
- 239000005304 optical glass Substances 0.000 title description 2
- 239000011521 glass Substances 0.000 description 4
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000007527 glass casting Methods 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/105—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having inhomogeneously distributed colouring
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Stroboscope Apparatuses (AREA)
- Eyeglasses (AREA)
Description
1877.1877.
Klasse 42.Class 42.
JOHANN FRIEDRICH ALT in NÜRNBERG. Optische Gläser mit farbigen Streifen zur Abhaltung grellen Lichtes.JOHANN FRIEDRICH ALT in NUREMBERG. Optical glasses with colored stripes to keep out glaring light.
Patentirt im Deutschen Reiche vom 27. Juli 1877 ab.Patented in the German Empire on July 27, 1877.
Man verwendet feines belgisches weifses Krystall-Glas, welches auf einer Seite mit einem beliebigen Farbenglasgufs emaillirt ist, schneidet daraus die benöthigten Stücke und schleift behutsam mit feinem Schmirgel von der bunten Seite so viel ab, als wünschenswerth erscheint.Fine Belgian white crystal glass is used, which has a Any colored glass casting is enamelled, cut the required pieces from it and grind it carefully with fine emery as much as appears desirable from the colored side.
Ist die Schutzseite nach Bedarf vollendet, so geht das Schleifen der weifsen Glasseite auf den gewöhnlichen Schalen vor sich, in der Weise, wie jedes Brillenglas optisch behandelt wird.Once the protective side has been completed as required, the white glass side is sanded onto the ordinary shells in front of you, in the same way as every lens is optically treated.
Der Schliff der weifsen Glasseite wird, wie bekannt, in Convex-, Concav- und Doppelfokus ausgeführt. Der periskopische Schliff auf beiden Seiten bietet grofse Schwierigkeiten dar; desgleichen der von Hohlgläsern.The cut of the white glass side is, as is known, in convex, concave and double focus executed. The periscopic polish on both sides presents great difficulties; likewise that of hollow glasses.
Das Wesentliche der Erfindung beruht in dem bunten Streifen am Glas, wodurch unbedingt Schutz gegen das Einfallen des grellen Lichtes auf das Auge gewährt wird.The essence of the invention resides in the colorful stripes on the glass, which is essential Protection against the incidence of glaring light on the eye is granted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE293T | 1877-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE293C true DE293C (en) | 1900-01-01 |
Family
ID=70967963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE293DA Expired DE293C (en) | 1877-07-26 | 1877-07-26 | Optical glasses with colored stripes to keep out glaring light |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE293C (en) |
-
1877
- 1877-07-26 DE DE293DA patent/DE293C/en not_active Expired
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