DE268030C - - Google Patents
Info
- Publication number
- DE268030C DE268030C DENDAT268030D DE268030DA DE268030C DE 268030 C DE268030 C DE 268030C DE NDAT268030 D DENDAT268030 D DE NDAT268030D DE 268030D A DE268030D A DE 268030DA DE 268030 C DE268030 C DE 268030C
- Authority
- DE
- Germany
- Prior art keywords
- glass
- softening temperature
- barite
- glasses
- coefficient
- 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.)
- Active
Links
- 239000011521 glass Substances 0.000 claims description 15
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 229910052601 baryte Inorganic materials 0.000 description 4
- 239000010428 baryte Substances 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 239000005331 crown glasses (windows) Substances 0.000 description 1
- 239000006185 dispersion Substances 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
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Glass Compositions (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE268030C true DE268030C (enrdf_load_stackoverflow) |
Family
ID=525033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT268030D Active DE268030C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE268030C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT268030D patent/DE268030C/de active Active
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