Product type: Flat Lens. Application: Lighting, Medical, Optical, Photography.
Overview
Borosilicate Glass Round Disc is a precision glass plate / sheet made from Borosilicate Glass. Listed geometry: size 1150*850mm, 1150*1700mm or Any Cut Size, thickness 2-20mm, single-lens shape. Optical / electrical data: transmittance >95%, sheet resistance 500ºC. Coating: HC; temperature 500. Listed for Lighting, Medical, Optical and Photography applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Borosilicate Glass |
|---|---|
| Type | Flat Lens |
| Shape | Single-lens |
| Size | 1150*850mm, 1150*1700mm or Any Cut Size |
| Thickness | 2-20mm |
| Transmittance | >95% |
| Coating | HC |
| Usage | Lighting, Medical, Optical, Photography |
| Lenses Color | Clear |
| Item | High Precision Borosilicate Glass Round Disc |
| Technique | Microfloat Technology |
| Property | Heat Resistant and Eco Friendly |
| Process | Cutting, Grounding, Polishing, Silk Printing |
| Use | Microscope Slide, Lab,Sight Window, Fireplace |
| Feature | High Transmittance |
| Plain clear sheet | general industrial sight glass, optical window |
| Single/double frosted slides | reserved frosted writing zone for marking sample information |
| Color frosted area | white, blue, pink, yellow frosted end for easy classification of specimen types |
| Coated slides | poly-L-lysine coated surface for better cell & tissue adhesion |
| Standard microscope slide size | 75×25mm / 76×26mm, thickness 1.0mm, 1.1mm, 1.2mm |
| Original float glass sheet stock thickness | 0.8mm / 1.0mm / 1.5mm / 2.0mm / 3.0mm / 4.0mm / 5.0mm / 6mm / 8mm |
| Microscope slides | 50pcs/72pcs per paper box, vacuum aluminum foil outer package with desiccant to avoid moisture |
| Large industrial glass sheet | EPE foam separation + carton + export wooden crate to prevent collision breakage |
| Density | 2.23g/cm³ |
| Thermal Expansion Coefficient (20-300ºC) | 3.25×10 K¹ |
| Long-term Max Working Temp | 450ºC |
| Short-term Instant Resistant Temp | 500ºC |
| Thermal Shock Resistance | 180K temperature difference without breakage |
| Acid Resistance Grade | HGB1; Alkali Resistance Grade: A2 |
| Refractive Index | Nd=1.47384 |
| Standard lead time | 25 working days after deposit payment |
| Sizes | 1150*850mm |
| Customized size | Φ ≥ 50mm will be welcome and made according to your requirements |
| Maximum working temperature Short time(<10h) | 500 |
| Long time(>10h) | 450 |
| Refractive index ND | 1.47384 |
| Supplier | Jinan Honhai Glass Company Limited |
Technical data
| Item | Technical Parameters |
|---|---|
| Product Name | Borosilicate Glass Round Disc / Round Glass Plate |
| Material | 3.3 High-Purity Borosilicate Float Glass |
| Thickness Range | 2mm – 20mm (Customizable) |
| Diameter Range | 10mm – 1000mm (Custom Size Available) |
| Thermal Expansion Coefficient | 3.3×10/K (20ºC-300ºC) |
| Visible Light Transmittance | ≥91% |
| Max Long-term Working Temperature | 450ºC |
| Low Temperature Resistance | -40ºC |
| Surface Quality | Bubble-free, Scratch-free, Ultra-flat, No Distortion |
| Edge Treatment | Fine Polished Round Edge / Chamfered Edge |
| Processing Service | Custom Cutting, Drilling, Polishing, Coating, Sandblasting |
| Item | Technical Parameters |
|---|---|
| Product Name | High Precision Borosilicate Optical Glass Lens |
| Material | 3.3 High-Purity Borosilicate Float Glass |
| Thickness Range | 2mm – 20mm (Customizable) |
| Thermal Expansion Coefficient | 3.3×10/K (20ºC-300ºC) |
| Visible Light Transmittance | ≥91% |
| Max Working Temperature | 450ºC (Long-term stable use) |
| Surface Quality | Bubble-free, Scratch-free, Nano-level Flatness |
| Optical Characteristic | Low Fluorescence, No Distortion, Stable Refractive Index |
| Processing Service | Custom Shape, Coating, Polishing, Cutting, Drilling |
What to specify when you request a quote
- Material — listed as “Borosilicate Glass”; name the glass or quartz grade.
- Outline and thickness — listed as “1150*850mm, 1150*1700mm or Any Cut Size”; give outline, thickness and tolerances.
- Holes, slots and features — listed as “Single-lens”; dimension every hole and its position tolerance on the drawing.
- Edges — state edge finish and chamfer.
- Surface — state polish and flatness where they matter.
Engineering guides for this part
For material grades and coating options, see Custom Borosilicate Glass Sheets Cut to Size: Precision and Performance. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Custom Ultra-Thin Glass Discs for Appliance Sensor Assemblies. Before sending a drawing, check Precision Glass Material Selection: Fused Silica vs Borosilicate & More. A related standard product is Custom Ultra-Thin Quartz Glass Disc.
FAQ
What is the Borosilicate Glass Round Disc made of? expand_more
It is listed as Borosilicate Glass. Coating: HC. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.
What sizes and thicknesses are available? expand_more
The listing gives size 1150*850mm, 1150*1700mm or Any Cut Size, thickness 2-20mm. Custom outlines and thicknesses are made to drawing; state the tolerance you need.
What optical or electrical performance does it have? expand_more
Listed values: transmittance >95%, sheet resistance 500ºC. Confirm the values at your operating wavelength, angle and temperature when you request a quote.
Where is this precision glass plate / sheet used? expand_more
Listed applications: Lighting, Medical, Optical and Photography.
What should I include in a quote request? expand_more
Include material, outline and thickness, holes, slots and features, edges and surface, plus quantity and a drawing if the part is custom.
