Product type: Optical Glass. Application: Sight glass, level gauge, boiler/furnace observa. Model: HT-OPG. Function: Optical Function, Thermal Function, Mechanics and Mechanical Function.
Overview
Custom Cut Optical Panels Ultra Thin Borosilicate Fused Quartz Sapphire Drilled Holes Polished Beveled Edges Industrial Instrument Sight Windows Glass: a sapphire / infrared window made from Optical/technical glass: soda-lime, high-alumina,. Listed geometry: size Custom, thickness 0.5-25mm (ultra-thin 0.5-1.1mm; borosilicate 1.5-2, round disc, square, rectangular, custom outline, s shape. It is used in Optical. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Optical/technical glass: soda-lime, high-alumina, |
|---|---|
| Type | Optical Glass |
| Shape | Round disc, square, rectangular, custom outline, s |
| Size | Custom |
| Thickness | 0.5-25mm (ultra-thin 0.5-1.1mm; borosilicate 1.5-2 |
| Application | Optical |
| Usage | Sight glass, level gauge, boiler/furnace observa |
| Model NO. | HT-OPG |
| Structure | Solid |
| Moh's Hardness | 6 |
| Function | Optical Function, Thermal Function, Mechanics and Mechanical Function |
| Transparency | Transparent |
| Processing Method | CNC cutting, grinding, optical polishing, drilling |
| Preparation Process | Fusion Method |
| Color | Clear, ultra-clear |
| Custom Attribute: Coating | AR/AF |
| Place of Origin | Qingdao |
| Quality Control Process | Incoming Material Check |
| Certifications | ISO 9001 Quality Management System |
| Sea Freight | 25–40 days transit. Cost-efficient for bulk orders; FCL & LCL available. |
| Air Freight | 4–7 days transit. Perfect for urgent shipments. |
| International Express | 3–5 days transit. Door-to-door service by DHL, FedEx, UPS, optimal for samples and small packages. |
| Key Production Equipment | – CNC glass-cutting and shaping machines |
| Custom Attribute | Coating: AR/AF |
| Supplier | Qingdao Hitech Glass Co.,Ltd |
Technical data
| Application | Recommended Material | Typical Form and Processing |
| Cover panels and touch surfaces | Ultra-thin soda-lime / high-alumina OG02 | 0.5-1.1mm, chemical strengthen, silk-screen border |
| Camera and sensor windows | Ultra-thin borosilicate / high-alumina OG02 | AR/AF coated, precision cut, polished edge |
| Optical substrates for coating | Ultra-thin borosilicate 3.3 OG02 | 0.5-1.1mm, polished, low inclusion |
| Boiler and furnace observation | Borosilicate 3.3 OG03 | Round disc, 450C, DIN sight-glass size |
| Tank and boiler level gauges | Borosilicate OG03 / fused quartz OG04 | Long strip or disc, ground and polished |
| Oven and appliance sight windows | Borosilicate 3.3 OG03 | 3-5mm, optional heat-bend and black border |
| High-temperature furnace windows | Fused quartz OG04 | To about 1100C, JGS2/JGS3, polished |
| UV and IR optical windows | Fused quartz JGS1/JGS2/JGS3 OG04 | Wavelength grade, optical polish |
| Laboratory and spectrometer parts | Fused quartz OG04 | Discs, plates, cuvette and gauge blanks |
| Semiconductor process carriers | High-purity fused quartz OG04 | Custom machined shapes, acid resistant |
| High-pressure vessel viewports | Sapphire OG05 / quartz OG04 | Thick disc, flange fit, rating per assembly |
| HF and strong-acid reactors | Single-crystal sapphire OG05 | Acid-inert window, polished |
| Vacuum chamber and R and D viewports | Sapphire OG05 | UV-IR transmitting, scratch proof |
What to specify when you request a quote
- Material and grade — listed as “Optical/technical glass: soda-lime, high-alumina,”; name the glass or crystal grade (for example JGS1, N-BK7, Borofloat 33, sapphire) because it fixes the transmission band and thermal limits.
- Diameter or outline — listed as “Custom”; give the nominal size and the tolerance you can accept.
- Thickness — listed as “0.5-25mm (ultra-thin 0.5-1.1mm; borosilicate 1.5-2”; state nominal thickness and tolerance; thinner windows need tighter flatness control.
- Surface quality and flatness — quote scratch-dig and flatness over the clear aperture, not the whole part.
- Coating — listed as “AR/AF”; list the wavelength band and the maximum reflectance per surface for any AR coating.
- Clear aperture and edges — define the usable aperture and the edge chamfer.
Engineering guides for this part
For material grades and coating options, see Infrared Window Glass: Material Options for Optical Sensors & Parts. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Infrared Window Glass for Smart Home Appliance Sensors. Before sending a drawing, check Design Guide for Holes, Slots, and Edges in Custom Glass Parts. A related standard product is Infrared Windows.
