Product type: Glass Tableware. Application: Home. Model: SD-98. Function: Heat Absorbing Glass, Heat Reflective Glass.
Overview
The High Clear Borosilicate Optical Light Filter Heat Resistant Cover Glass is supplied as an optical filter made from Borosilicate. Listed geometry: size Customized, thickness 3.3mm, Custom, curve, flat shape. Optical / electrical data: transmittance 92%thickness≤4mm,91%thickness≥5mm. Listed for Home applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Borosilicate |
|---|---|
| Type | Glass Tableware |
| Shape | Curve, Flat |
| Size | Customized |
| Thickness | 3.3mm, Custom |
| Application | Home |
| Color | Transparent |
| Model NO. | SD-98 |
| Glass Type | Polycrystalline Glass |
| Function | Heat Absorbing Glass, Heat Reflective Glass |
| nd | 1.47384 |
| Light transmission | 92%thickness≤4mm,91%thickness≥5mm |
| Processing & Advantage | Packing and delivery |
| Supplier | DONGGUAN SAIDA GLASS CO.,LTD |
Technical data
| Physical Property | |||||
| No. | Physical performance | Numerical Value | Unit | ||
| 1 | Coefficient of mean linear thermal expansion(20°C,300°C) | 3.3±0.1 | 10-6K-1 | ||
| 2 | Transformation temperature | 525±15 | °C | ||
| 3 | Softening point | 820±10 | °C | ||
| 4 | Working point | 1260±20 | °C | ||
| 5 | Density at 20°C | 2.23±0.02 | g/cm3 | ||
| 6 | Mean thermal conductivity(20°C-100°C) | 1.2 | w/m2k | ||
| 7 | Refractive index | 0.92 | 1 | ||
| Main Composition | |||||
| SiO2 | B2O3 | Na2O+K2O | Al2O3 | ||
| 81 | 13 | 4 | 2 | ||
| Chemical Property | |||||
| Hydrolytic resistance at 98°C | ISO719-HGB 1 | ||||
| Hydrolytic resistance at 121°C | ISO720-HGA 1 | ||||
| Acid resistance Class | ISO1776-First Class | ||||
| Optical Property | |||||
| Refractive: | nd : 1.47384 | ||||
| Light transmission: | 92%thickness≤4mm,91%thickness≥5mm |
| our company equipment |
| 1.Dust free painting room |
| 2.Automatic acid etching producing line |
| 3.Automatic circularly hot bending furnace |
| 4.Finland Tamglass tempering furmance |
| 5.CNC Water jet cutting maching computer controlled processing machine |
What to specify when you request a quote
- Spectral target — state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- Blocking — give the blocking range and optical density (OD) the system needs.
- Angle of incidence — interference filters shift with angle, so specify the operating angle and cone.
- Size and thickness — listed as “Customized”; give outline, thickness and tolerance, and whether the filter is mounted.
- Substrate — listed as “Borosilicate”; name the substrate glass if thermal or UV behaviour matters.
- Surface quality — quote scratch-dig for imaging paths.
Engineering guides for this part
For material grades and coating options, see Color Filter Glass Materials for High-Performance Optical Screening and Imaging. How parts like this are machined and finished is covered in Borosilicate Glass Sandblasting for Consistent Matte Surface Processing. For an application example, read Cover Glass for Dishwasher Touch Interfaces: QC & Inspection. Before sending a drawing, check Thermal Conductivity of Quartz Glass & Fused Quartz: A Process Guide. A related standard product is Optical Glass Colour Filter.
