# Wholesale Optical Glass Manufacturer in China | TIHOTOPTICS


## Posts

- [How Optical Glass Is Manufactured](https://opticalglass.net/how-optical-glass-is-manufactured/): At first glance, optical glass does not look any different from ordinary glass. It is transparent, r […]
- [How to measure the resistance of ito glass](https://opticalglass.net/how-to-measure-the-resistance-of-ito-glass/): Understanding Sheet Resistance in ITO Glass Sheet resistance, expressed in ohms per square (Ω/□), is […]
- [What Is ITO Coating Glass? A Complete Guide](https://opticalglass.net/what-is-ito-coating-glass-a-complete-guide/): ITO means indium tin oxide. This coating makes glass both transparent and electrically conductive. I […]
- [What Is Glass Flatness in Optics?](https://opticalglass.net/what-is-glass-flatness-in-optics/): In precision optics, glass flatness is one of the most critical surface specifications. It defines h […]
- [How is Glass Flatness Measured?](https://opticalglass.net/how-is-glass-flatness-measured/): Measuring glass flatness requires extraordinarily precise techniques, since we’re often dealin […]
- [What Is Alkali-Free Glass](https://opticalglass.net/what-is-alkali-free-glass/): Introduction— What Is Alkali-Free Glass? Alkali-free glass represents a specialized category of engi […]
- [How to Test if Sapphire Glass Is Real](https://opticalglass.net/how-to-test-if-sapphire-glass-is-real/): Introduction In today’s market, sapphire glass is widely used in smartphones, luxury watches, optica […]
- [Hydrophobic vs Hydrophilic Glass Coatings: Selection Guide](https://opticalglass.net/hydrophobic-vs-hydrophilic-glass-coatings-selection-guide/): Understanding the fundamental differences between hydrophobic and hydrophilic surfaces is crucial fo […]
- [Decoding the Difference: AG, AR, and AF Glass Explained](https://opticalglass.net/decoding-the-difference-ag-ar-and-af-glass-explained/): In a world dominated by displays, from our smartphones to sprawling outdoor signage, the quality of  […]
- [Understanding Optical Glass Properties: Refractive Index, Abbe Number](https://opticalglass.net/understanding-optical-glass-properties-refractive-index-abbe-number/): Optical glass is the fundamental building block of modern photonics, serving as the core component i […]
- [The Refractive Index Requirement for Display Screen Glass](https://opticalglass.net/the-refractive-index-requirement-for-display-screen-glass/): When it comes to display screen glass, one critical optical property often determines the success or […]
- [What is Aluminosilicate Glass?](https://opticalglass.net/what-is-aluminosilicate-glass/): You might have encountered aluminosilicate glass in your smartphone screen or laboratory equipment w […]
- [Pyrex Glass vs. Borosilicate Glass](https://opticalglass.net/pyrex-glass-vs-borosilicate-glass/): When selecting glassware for your kitchen, laboratory, or other specialized applications, understand […]
- [What Is Special Glass?](https://opticalglass.net/what-is-special-glass/): Introduction Special glass is not just “any glass.” It refers to a family of engineered glass materi […]
- [Ultra Clear Glass vs AR Coated Glass](https://opticalglass.net/ultra-clear-glass-vs-ar-coated-glass/): This guide compares ultra clear glass and AR coated glass, explaining their optical properties and a […]
- [Fused Silica vs Quartz Glass: Key Differences and Uses](https://opticalglass.net/fused-silica-vs-quartz-glass-key-differences-and-uses/): Understanding the differences between fused silica and quartz glass is crucial for engineers, resear […]
- [Optical Glass Properties Explained](https://opticalglass.net/optical-glass-properties-explained/): This comprehensive guide explores optical glass properties, covering refractive index, Abbe numbers, […]
- [Types and Grades of Optical Glass](https://opticalglass.net/types-and-grades-of-optical-glass/): Optical glass forms the foundation of nearly every modern photonic and imaging system—from high-powe […]
- [Quartz Glass in Advanced Industries: Properties, Grades, and Applications](https://opticalglass.net/quartz-glass-in-advanced-industries-properties-grades-and-applications/): Quartz glass, known for its purity, thermal stability, and wide spectral transparency, has become an […]
- [Borosilicate Glass vs Glass: What’s the Real Difference?](https://opticalglass.net/borosilicate-glass-vs-glass-whats-the-real-difference/): When selecting materials for applications ranging from cookware and laboratory instruments to lighti […]

## Pages

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- [Shape Bullets with Order Management Features](https://opticalglass.net/shape-bullets-with-order-management-features-3/): Seamless Order Management Where Shopping Meets Convenience All Day Updates Stay informed about deliv […]
- [Shape Bullets with Order Management Features](https://opticalglass.net/shape-bullets-with-order-management-features/): Seamless Order Management Where Shopping Meets Convenience All Day Updates Stay informed about deliv […]
- [Mega Menu for a Startup Company Website](https://opticalglass.net/mega-menu-for-a-startup-company-website/): Solutions Platforms Industries Company EcoRenew Industries Join us in our mission to turn waste into […]
- [Coverflow Carousel as a Flat Style Carousel](https://opticalglass.net/coverflow-carousel-as-a-flat-style-carousel/): A World of Breads Explore the Diverse Varieties From Around the Globe Bread Rall A small, often roun […]
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- [About](https://opticalglass.net/about/): About TIHOTOPTICS Tihot Optics (Guangzhou) Co., Ltd. is a leading manufacturer specializing in preci […]
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## Products

- [Infrared Windows](https://opticalglass.net/product/infrared-windows/): Infrared windows are specialized optical components designed to transmit infrared radiation while providing environmental protection and optical isolation. Engineered with IR-transparent materials and optimized coatings, these windows deliver exceptional transmission across NIR, SWIR, MWIR, and LWIR spectral ranges. Essential for thermal imaging, gas analysis, spectroscopy, and defense applications where infrared clarity is mission-critical.
- [AR Anti-reflection optical window](https://opticalglass.net/product/ar-anti-reflection-optical-window/): AR (Anti-Reflective) coated optical windows are precision-engineered components that maximize light transmission by minimizing surface reflections across specific wavelength ranges. Manufactured with premium substrate materials and advanced multi-layer coatings, these windows achieve >99% transmission efficiency, making them essential for laser systems, scientific instruments, medical devices, and aerospace applications where optical clarity is critical.
- [Neutral Density (ND) Filters](https://opticalglass.net/product/neutral-density-nd-filters/): Neutral density filters are precision optical attenuators that reduce light intensity uniformly across the visible spectrum without altering color balance or spectral distribution. Unlike wavelength-selective filters, ND filters provide spectrally neutral attenuation, making them essential for controlling light levels in imaging systems, laser power management, and photometric applications where color fidelity must be preserved.
- [Notch Filters](https://opticalglass.net/product/notch-filters/): Notch filters are precision optical components designed to block a narrow wavelength band while transmitting all other wavelengths with high efficiency. Also known as band-rejection or band-stop filters, they are the inverse of bandpass filters—creating a sharp "notch" in the transmission spectrum at a specific wavelength. TIHOT Optics manufactures high-performance notch filters using advanced multilayer dielectric coatings to achieve deep blocking (>OD4) within the rejection band and excellent transmission (>90%) outside it.
- [Dichroic Filter](https://opticalglass.net/product/dichroic-filter/): Dichroic filters are precision optical components based on multilayer interference coating technology that split incident light by wavelength into two paths: specific wavelengths are efficiently reflected while others transmit through. Unlike absorptive filters, dichroic filters achieve wavelength separation through optical interference without generating heat, making them ideal for high-power laser systems and multi-channel optical designs.
- [Longpass Filter](https://opticalglass.net/product/longpass-filter/): Optical longpass filters are precision components designed to transmit longer wavelengths while blocking shorter wavelengths below a specific cut-on point. TIHOT Optics provides high-performance longpass filters spanning UV to IR wavelengths, featuring hard dielectric coatings for superior transmission in the passband and excellent blocking in the rejection band.
- [Shortpass Filter](https://opticalglass.net/product/shortpass-filter/): Optical shortpass filters are precision components designed to transmit shorter wavelengths while blocking longer wavelengths above a specific cut-off point. TIHOT Optics provides high-performance shortpass filters spanning UV to IR wavelengths, featuring hard dielectric coatings for superior transmission in the passband and excellent blocking in the rejection band.
- [Bandpass Filters](https://opticalglass.net/product/bandpass-filters/): Optical bandpass filters are precision components designed to selectively transmit light within a specified wavelength range while blocking unwanted wavelengths. TIHOT Optics provides high-accuracy bandpass filters spanning UV to IR wavelengths, featuring hard dielectric coatings for superior transmission and blocking characteristics.  Our bandpass filters deliver exceptional performance in precision wavelength control, high durability, and are available with custom wavelength configurations to meet diverse application requirements across laser systems, imaging equipment, spectroscopy, and analytical instrumentation.
- [ITO Coated Glass Substrate for Optoelectronics](https://opticalglass.net/product/ito-coated-glass-substrate-for-optoelectronics/): Technical Specifications        Parameter  Specification Range / Options      Substrate Material  Soda lime glass      Conductive Layer  Fluorine Doped Tin Oxide (SnO₂:F)      Sheet Resistance (Ω/sq)  6–8 Ω/sq (standard) / 10–15 Ω/sq (optional)      Optical Transmittance  ≥ 84% @ 550 nm      Temperature Resistance  Up to 500°C      Standard Size / Thickness  20×20 mm / 2.2 mm (customizable)      
- [Custom FTO Conductive Glass](https://opticalglass.net/product/custom-fto-conductive-glass/):       Parameter  Specification Range / Options      Substrate Material  Soda lime glass      Conductive Layer  Fluorine Doped Tin Oxide (SnO₂:F)      Sheet Resistance (Ω/sq)  6–8 Ω/sq (standard) / 10–15 Ω/sq (optional)      Optical Transmittance  ≥ 84% @ 550 nm      Temperature Resistance  Up to 500°C      Standard Size / Thickness  20×20 mm / 2.2 mm (customizable)      
- [Custom ITO Coating Glass](https://opticalglass.net/product/custom-ito-coating-glass/):       Parameter  Specification Range / Options          Substrate Material  Soda lime glass, Borosilicate (e.g. SCHOTT BOROFLOAT® 33), Quartz glass      ITO Film Composition  In₂O₃·(SnO₂)x      Size (Customizable)  10×10 mm to 300×300 mm (CNC cutting available)      Thickness  0.4 mm / 0.7 mm / 1.1 mm / 1.8 mm / custom      Sheet Resistance (Ω/□)  5–500 Ω/□ (custom sputtering)      Optical Transmission  ≥ 83% @ 550 nm      Surface Roughness  Glass < 1 nm RMS; ITO layer ≈ 1.8 nm RMS (AFM measured)      Packing  21 pcs/box (or custom packaging)      Processing Capabilities  Laser cutting, edge grinding, polishing, pattern etching, coating, cleaning      
- [custom Special Shaped Glass Plate](https://opticalglass.net/product/custom-special-shaped-glass-plate/):       Category  Capability / Range  Notes          Outline Size  5–500 mm (longer upon request)  Rectangular or irregular profiles      Thickness  0.20–10.0 mm  Standard: 0.5 / 0.55 / 0.7 / 1.1 / 2.0 / 3.0 mm      Step / Ledge Depth  0.10–3.00 mm  Multi-level steps supported      Dimensional Tolerance  Outline ±0.05–0.15 mm; Step depth ±0.03–0.10 mm  Depends on thickness & geometry      Flatness / Warp  ≤0.2% of diagonal (typical)  Optical-grade on request      Surface Roughness  < 0.02 μm Ra (polished)  Lapped/etched finishes optional      Edges  C-chamfer / bevel / rounded R  Chip-free edges, safety finish      Holes / Slots  Ø0.8–30 mm; Positional tol. ±0.10 mm  Countersink/counterbore available      Strengthening  Chemical or thermal tempering  Per material & thickness      Coatings  AR/AG/AF, ITO heater/electrode, IR/UV-cut, DLC  Silk-print blackout frames optional      
- [Custom Ultra-Thin Quartz Glass Disc](https://opticalglass.net/product/custom-ultra-thin-quartz-glass-disc/):       Property  Specification          Material  Fused Quartz (JGS1 / JGS2 / JGS3)/BF33      Thickness Range  0.1 mm – 1.0 mm (customizable)      Diameter  10 mm – 300 mm      Transmission  >90% (200–2500 nm)      Thermal Expansion (20–300 °C)  0.55 × 10⁻⁶ / K      Max Operating Temperature  ~1200 °C      Surface Roughness  < 5 nm (optical polishing available)      
- [Custom LED Package Glass Cover Plate](https://opticalglass.net/product/custom-led-package-glass-cover-plate/):       Property  Specification          Material  Borosilicate Glass / Quartz Glass / Aluminosilicate Glass      Thickness Range  0.2 mm – 2.0 mm (customized)      Dimensions  Round, square, rectangle, custom shapes      Optical Transmission  > 92% (visible light)      Surface Roughness  Ra < 10 nm (higher precision available)      
- [High Transparency AR Glass](https://opticalglass.net/product/ar-coated-glass-high-transparency-anti-reflective-optical-glass/): Material:schott Float glass Double-sided vacuum magnetron sputtering  AR film with light transmittance 99%  reflectance 0.67%.  Origin: Germany. Size difference: ±1mm.  Ultraviolet blocking rate: 64.5%.  Size range: 2440*1830.  Infrared transmittance: 850nm.  Transmittance: 95%  Product thickness: 1.1mm, 1.85mm. 2.0mm, 3.2mm, 5mm
- [Custom Perforated Quartz Plates](https://opticalglass.net/product/custom-perforated-quartz-plates/): Material: High-purity fused quartz glass  Size: Diameter 79mm × thickness 3mm (custom sizes supported)  Properties: High temperature resistance >1100°C, excellent UV and visible light transmission, low thermal expansion  Processing: With perforation (customizable hole size, position, and shape)  Applications: Optical experiments, laboratory research, UV sterilization, semiconductor equipment, industrial high-temperature windows
- [Laser Beam Splitter Glass Sheet | Optical Light Splitter for Lasers](https://opticalglass.net/product/laser-beam-splitter-glass-sheet-optical-light-splitter-for-lasers/): Beamsplitter alias: Beamsplitter/Beamsplitter/Attenuator/ Feedback/Beamsplitter  Typical wavelength: 355nm/475nm/488nm 532nm/650nm/850rm/940nm/1064nm/1310 nm/1550nm  Visible light band: 400nm-700nm splitting  UV band: 250nm-400nm spectral  Near infrared band: 700nm-1700nm spectral
- [Custom Glass Microfluidic Chip](https://opticalglass.net/product/custom-glass-microfluidic-chip/): Quartz Glass Microfluidic Chip for Cell Counting Chambers  Material: High Purity Fused Quartz/borfloat glassSurface: High Optical TransparencyTolerance: ±0.05 mmApplication: Biomedical Research – used in cell biology, oncology, immunology, and more, for accurate counting and analysis of various cells, such as tracking cancer cell proliferation or studying immune response dynamics.
- [Fused Quartz Wafer](https://opticalglass.net/product/fused-quartz-wafer/):       Parameter  Specification Range / Options          Material  High-purity Fused Quartz (SiO₂ ≥ 99.99%)      Diameter / Size  2” / 4” / 6” / 8” (custom rectangular or circular up to 300 mm)      Thickness  0.2 mm – 2.0 mm (custom thinning or lapping available)      Surface Roughness  ≤ 0.5 nm (double-side polished, AFM measured)      Optical Transmission  > 90% @ 200–2500 nm (UV–VIS–IR range)      Thermal Expansion (CTE)  0.55 × 10⁻⁶ /K (20–320°C)      Processing Capabilities  CNC cutting, laser drilling, edge beveling, optical polishing, coating      
- [Alkali-Free Glass Wafers](https://opticalglass.net/product/alkali-free-glass-wafers/):   Key Technical Specifications – Alkali-Free Glass                Property  Value  Unit / Notes          Type  Alkali-free display glass  Free of Na⁺, K⁺, As, and heavy metals      Density  ~2.38  g/cm³      Thermal Expansion Coefficient  ~3.2 × 10⁻⁶  /K (20°C–300°C), silicon-compatible      Young’s Modulus  ~73  GPa      Refractive Index  ~1.51  @ λ = 587.6 nm      Surface Roughness  < 0.5  nm (as-drawn), can be polished to Ra ≤ 0.01 µm      Transmission  >90%  400–700 nm visible range      Softening Point  ~820  °C      Annealing Point  ~639  °C      Lead/Arsenic Content  None  RoHS & REACH compliant              
- [LED Groove Cover Glass](https://opticalglass.net/product/led-groove-cover-glass/): Custom Processing & Fabrication Capabilities            Parameter  Specification Options          Thicknesses  0.3mm, 0.5mm, 0.7mm, 1.1mm      Max Size  Up to 300 mm × 300 mm (larger sizes on request)      Shapes  Round, square, oval, recessed, irregular shapes      Edge Finishing  Polished, beveled, chamfered, fire-polished      Groove Options  Recessed channels, slots, custom contours      Surface Finish  Clear, frosted, matte, coated      Coatings Available  AR, AF, UV-blocking, heat-reflective      Packaging  Cleanroom bag, foam tray, protective film          
- [Custom High-Purity Quartz Glass](https://opticalglass.net/product/custom-high-purity-quartz-glass/): Comprehensive Technical Specifications            Property  Value          Material  Fused Quartz / Synthetic Quartz      SiO₂ Purity  ≥ 99.99%      Working Temperature  ≤ 1200°C continuous, up to 1500°C short-term      Light Transmittance  >90% in 190–2500 nm      Thermal Expansion  5.5 × 10⁻⁷ /°C      Chemical Resistance  Excellent to acids and alkalis      Standard Forms  Plates, Tubes, Rods, Discs, Wafers      Custom Machining  Cutting, Drilling, Polishing, CNC Machining                   Our custom high-temperature quartz glass can be manufactured with tight dimensional tolerances, optical surface finishes, and complex geometries, making it suitable for both prototype development and high-volume industrial deployment.
- [CCD Optical Screening Machine Glass Plate – High Flatness & Load Capacity](https://opticalglass.net/product/ccd-optical-screening-machine-glass-plate/):           Feature  Value          Light Transmittance  92% – 98%      Glass Load Capacity  Up to 30KG      Surface Flatness  0.10mm – 0.20mm      Equipment-Level Flatness  0.01mm – 0.03mm (valid bounce rate)      Available Materials  Optical Borosilicate, Quartz, Float Glass      Edge Finish Options  CNC Polished, Beveled, Chamfered      Thickness Range  1mm – 10mm (Custom Available)      Standard Sizes  100×100mm, 200×200mm, Custom      Optional Coatings  AR (Anti-Reflection), Hardcoat, Oleophobic                   Every specification is selected to meet the stringent requirements of machine vision systems where dimensional accuracy, vibration resistance, and optical purity are non-negotiable.
- [High Content Screening Microplates with Glass Bottom](https://opticalglass.net/product/high-content-screening-microplates-with-glass-bottom/):   Technical Specifications of HCS Glass Bottom Plates            Parameter  Description          Plate Format  96, 384, 1536 well formats (ANSI/SLAS compliant)      Bottom Material  Optical glass (Borosilicate or Fused Silica)      Glass Thickness  0.17 mm ± 0.01 mm (No. 1.5)      Plate Body Material  Polystyrene or Cycloolefin Polymer (COP/COC)      Surface Treatment  Tissue Culture-treated, with optional coatings      Sterilization  Gamma or Ethylene Oxide      Compatibility  Robotic handlers and microscope stages             
- [Fused Silica Glass Wafers 2–12 Inch (JGS1/JGS2)](https://opticalglass.net/product/fused-silica-glass-wafers-2-12-inch-jgs1-jgs2/): Fused silica glass wafers, also known as ultra-flat quartz wafers, are high-purity optical substrates made from amorphous silicon dioxide (SiO₂). Originally developed for semiconductor and photonic applications, these wafers offer exceptional UV transparency, thermal stability, and chemical resistance. Available in sizes from 2 to 12 inches, and thicknesses from 0.15 mm to 1.0 mm, they are widely used in MEMS, microfluidics, laser optics, and thin-film deposition. TIHOTOPTICS offers both JGS1 and JGS2 grade wafers with DSP or SSP finishes, customizable to your technical requirements.
- [Etched Glass Cover for LED/OLED Module Packaging](https://opticalglass.net/product/etched-glass-cover-for-led-oled-module-packaging/):   Specification Data        Thickness Range ：0.2 mm – 2.0 mm        Max Dimensions Up to 200 mm × 200 mm        Material Options： B270®, D263T®, BOROFLOAT® 33, Quartz        Optical Transmission :≥ 90% (400–700 nm)        Etching Type Laser or Chemical, Depth 10–100 μm        Surface Finish Polished, AR-coated, Anti-glare optional        Edge Treatment Stepped, C-cut, Beveled, Embedded        Thermal Stability Up to 400°C (material dependent)  
- [BF33 Microfluidic Glass Chip for Biological Rapid Testing](https://opticalglass.net/product/bf33-microfluidic-glass-chip-for-biological-rapid-testing/):   Specifications – BF33 Microfluidic Glass Chip        Material: SCHOTT BOROFLOAT® 33 Glass        Channel Width/Depth: 10–500 µm (customizable)        Thickness: 0.5 mm / 1.1 mm / 2 mm / Custom        Surface Quality: 60/40 or better        Bonding Method: Thermal bonding, plasma bonding        Application Fields: Biology, chemistry, diagnostics  
- [Optical Glass Colour Filter](https://opticalglass.net/product/optical-glass-colour-filter/):   Specification DataMaterial：Borosilicate / Soda Lime GlassThickness：1.1 mm / 2 mm / 3 mm (custom)Transmittance Range：>90% (within target spectrum)Surface Quality：60-40 or betterShape：Circular / Square / Custom CutThermal Resistance：Up to 450°C  
- [Custom FTO Glass Slides – Low-Resistance Conductive TCO for Lab Applications](https://opticalglass.net/product/custom-fto-glass-slides/): Technical Specifications            Parameter  ITO Coated Glass  FTO Coated Glass          Conductive Layer  Indium Tin Oxide (ITO)  Fluorine-doped Tin Oxide (FTO)      Base Substrate  Soda Lime / Borosilicate Glass  Float / Borosilicate Glass      Sheet Resistance  7 – 100 Ω/sq  10 – 15 Ω/sq      Optical Transmission  ≥ 80% (at 550 nm)  ≥ 85% (at 550 nm)      Thickness  0.5 mm – 1.1 mm (customizable)  1.1 mm typical      Standard Size  25 × 75 mm, 26 × 76 mm (custom sizes available)  25 × 75 mm, 100 × 100 mm      Surface Roughness  ≤ 3 nm RMS  Higher than ITO, suitable for high-temp use      Temperature Resistance  Up to 250°C  Up to 500°C          
- [2-100mm JGS1 and JGS2 Quartz glass sheets](https://opticalglass.net/product/2-100mm-jgs1-and-jgs2-quartz-glass-sheets/): Key Specifications – JGS1 and JGS2 Quartz Glass Sheets            Specification  JGS1 (Synthetic Quartz Glass)  JGS2 (Fused Quartz Glass)          Material  Synthetic fused silica  Natural fused quartz      Thickness Range  2mm to 100mm  2mm to 100mm      Optical Transmission  Excellent UV, Visible, IR range  Good Visible to IR range      Impurity Content  Ultra-low (high purity)  Low (natural impurities)      Surface Quality  Scratch-Dig 20/10 – 40/20 (customizable)         Surface Finish  Polished / Ground / Custom  Polished / Ground / Custom      Thermal Properties  High thermal shock resistance  High thermal stability      Chemical Resistance  Excellent against most acids and bases  Excellent against most chemicals      Custom Processing  Irregular shapes, drilling, slots, windows  Irregular shapes, drilling, slots, windows      Packaging  Cleanroom packing  Cleanroom packing          
- [4-Inch Borosilicate Glass Wafers](https://opticalglass.net/product/4-inch-borofloat-33-glass-wafers/): Basic Dimension Outline:      Diameter: 100mm ± 0.2mm      Standard Thickness: ~500μm (customizable)      Edge Finish: Ground and Beveled      Surface: Double Side Polished      TTV: ≤5μm, BOW/WARP: ≤25μm      Orientation: SEMI Standard flat available or fully round per request      (Custom dimensions and shapes available upon consultation.)   

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