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customized shape precision optical glass flats and substrates -0

Optical Glass

Home >  Products >  Special glass >  Optical Glass

Customized Shape Precision Optical Glass Flats and Substrates

Surface Quality and Flatness:

Surfaces can be polished to extreme smoothness and flatness (e.g., λ/10 flatness, 10-5 scratch-dig

Environmental Durability: 

no cracking after 100 cycles at -50℃~+85℃

Blocking Range:

200-500nm & 560-2500nm, the wavelength range blocked by the filte

Thermal Conductivity: 

46W/(m·K) (sapphire window), heat conduction capacity

Thermal Expansion Coefficient (CTE):

(3-10)×10^-6/℃, measures the expansion degree of materials with temperature changes

Spectral Transmission Range:

200nm-2500nm, the wavelength range where optical elements effectively transmit light

Introduction

                                                                                           Product Details                                                                                                                                                                                   

1.Description of the optical glass plate

1.1 An optical glass plate (or sheet) is a high-precision material manufactured from specially formulated glass to possess specific and consistent properties for manipulating light. Its primary function is to transmit, reflect, refract, or modify light waves in optical systems with minimal distortion or energy loss. Unlike ordinary window glass, optical glass is characterized by its exceptional hom

ogeneity, purity, and precisely controlled optical constants.

1.2 With advanced manufacturing techniques, we ensure exceptional surface quality, precise dimensional tolerances, and consistent optical performance. These elements are widely used in imaging, laser systems, spectroscopy, and optical instrumentation.

2.Key Characteristics:

2.1Precise Refractive Index 

The refractive index is a fundamental property, meticulously controlled during manufacturing for each glass type. It determines 

how severely the glass bends light.

 2.2 Precise Abbe Number 

Also known as the constringence, this measures the material's dispersion (its tendency to separate light into its constituent 

colors, like a prism). 

A high Abbe number indicates low dispersion, which is critical for reducing chromatic aberration in lenses.

 2.3 High Homogeneity

The refractive index is consistent throughout the entire volume of the glass plate. There are no striae, bubbles, or inclusions that 

could distort the light wavefront.

 2.4 Excellent Transmission

Designed to have very high transmittance across specific wavelength ranges (e.g., visible, UV, or IR), with minimal absorption and scatter.

 2.5 Superior Surface Quality

Surfaces can be polished to extreme smoothness and flatness (e.g., λ/10 flatness, 10-5 scratch-dig), which is critical for applications like laser windows, interferometry, and precise mirrors where any surface defect 

would degrade performance.

 2.6 Specific Mechanical & Thermal Properties

Properties like hardness, density, and coefficient of thermal expansion are carefully considered for the intended 

application to ensure stability and durability.

 

3.Common Types of Optical Glass

3.1 Crown Glass: 

Generally has a lower refractive index and a high Abbe number (low dispersion). Used for elements where controlling chromatic aberration is key.

 3.2 Flint Glass: 

Contains lead or other heavy metals, giving it a higher refractive index and a lower Abbe number (high dispersion). 

Often used in combination with crown glass to correct for chromatic aberration.

 

4. Primary Applications:

Optical glass plates are fundamental components in a vast array of devices and systems:

4.1 Lenses and Objectives: For cameras, microscopes, telescopes, binoculars, and projectors.

4.2 Prisms: Used to bend, rotate, or split light beams (e.g., in binoculars, spectrometers)

4.3 Windows and Protective Covers: On instruments, sensors, and lasers where a clear, undistorted view is necessary.

4.4 Beamsplitters: Plates that divide a beam of light into two separate paths.

4.5 Filters: Substrates for coated filters that selectively transmit or block specific wavelengths.

4.6 Substrates: For mirrors, diffraction gratings, and other optical coatings.

4.png 

5. Key Advantages of the optical glass

The primary advantages of optical glass plates are their precision, consistency, and versatility. 

They are the fundamental building blocks for creating high-performance optical systems where control over light is paramount, from simple camera lenses to 

complex microscopes and lithography machines.

 5.1 Precise and Predictable Optical Properties:

Controlled Refractive Index: Each type of optical glass has a precisely defined refractive index, allowing designers 

to accurately calculate light paths in lenses and prisms.

Managed Dispersion (Abbe Number): The Abbe number is carefully specified, enabling the correction of 

chromatic aberration (color fringing) in multi-element optical systems.

 5.2 Excellent Transmission:

High Transmittance:They are formulated for maximum light transmission with minimal absorption 

loss across specific spectral ranges (UV, Visible, or IR).Low Scatter and Inclusions:High homogeneity 

ensures that light passes through without being scattered or distorted by internal imperfections, preserving image quality.

 5.3 Superior Surface Quality and Flatness:

Surfaces can be polished to extreme smoothness and flatness (e.g., λ/10 flatness, 10-5 scratch-dig), which is critical for applications like laser windows, interferometry, and precise mirrors where any surface defect would degrade performance.

 5.4 High Homogeneity:

The chemical composition and refractive index are uniform throughout the entire volume of the glass. 

This eliminates internal distortions and ensures consistent optical performance across the entire aperture.

 5.5 Excellent Environmental and Chemical Stability:

Many optical glasses are designed to be highly resistant to staining, 

weathering, and moisture, ensuring long-term durability and stable performance in harsh environments.

 5.6 Customizability and Variety:

A wide range of glass types is available (e.g., Crown, Flint, Fused Silica) with different properties 

(refractive index, Abbe number, density) to meet the exact requirements of virtually any optical system design.

 5.7 Good Mechanical Rigidity:

Compared to plastics, optical glass offers greater hardness and rigidity, providing better resistance to

 scratching and maintaining its shape under stress, which is vital for preserving optical alignment.

Technical specifications

 

 Type

 Thickness(mm)

light source A2856k

 light sourceD65

x

y

Y

x

y

Y

C2C14  KG2/HA-50

3

0.439

0.412

91.7

0.307

0.330

90.8

C3C16 KG3 HA-30

2

0.440

0.413

86.5

0.311

0.334

87.4

 

Type

Thickness mm

420nm

500nm

600nm

700nm

C2C14  KG2/HA-50

3

85.0

 

 

45.0~70.0

C3C16 KG3 HA-30

2

83.7

81.0

76.4

 

 

Type

Thickness mm

800nm

900nm

1000nm

1060nm

2200nm

C2C14  KG2/HA-50

3

 

 

4.0

 

 

C3C16 KG3 HA-30

2

12.9

2.8

 

0.1

0.9

 

                                                                                          Development History                                                                                    

Development history.png

                                                                                        Patents and certification                                                                                  

We’ve obtained various global certifications including CE, EMC, LVD, RoHS, FDA, MSDS, ISO 9001, SGS and TUV. We also own eight registered trademarks and forty technical patents to support independent R&D.
Our proprietary core technologies run through all product lines: porous ceramics, industrial ceramic components, special glass, metallized ceramics, liquid absorption cotton, ozone generators and silicone goods. All products are manufactured in strict accordance with international quality standards, delivering reliable and high-performance solutions that have gained wide recognition and market trust worldwide.                   

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                                                                                               Package                                                                                                    

We adopt scientific and standardized packaging solutions tailored to product characteristics to effectively prevent collision, extrusion, dust and moisture damage. With mature global transportation system and strict shipment inspection procedures, we ensure all products remain intact and stable during long-distance delivery, providing customers with safe, efficient and reliable one-stop logistics service.

packing(2).png

                                                                                           Services                                                                        

Inquiry & Customization

We provide fast and accurate quotation response for all your inquiries. Flexible OEM & ODM customization solutions are available to meet your unique product design, packaging and branding requirements.

Order Quality Control

We keep clients updated with full production progress throughout the whole order cycle. Our QC team carries out strict comprehensive pre-shipment inspection to guarantee all goods comply with your quality standards before delivery.

Customs Document Support

We prepare a full set of standard export documents including commercial invoice, packing list, certificate of origin and other certification papers, to ensure smooth global customs clearance for shipments to all destinations worldwide.

One-Stop Logistics

Multiple shipping methods including sea freight, air freight and express delivery are offered to match your schedule and budget. We supply real-time cargo tracking service so you can monitor shipment status anytime.

Flexible Payment

We support a wide range of secure international payment terms such as T/T, L/C, Western Union and other mainstream cross-border settlement methods to reduce your cross-border transaction risks.

After-Sales Support

Our professional after-sales team offers timely technical and business support all year round. We maintain steady long-term stable supply capacity to fully back up your continuous market sales and project demands.

                                                                                               FAQ                                                                                                           

01

Question: Can you produce based on customers’ drawings or physical samples?

Answer: Absolutely yes. We accept technical drawings in all mainstream file formats as well as actual physical samples. Before formal production, our engineering team will provide a full professional DFM feasibility evaluation for your reference.

02 

Question: How long is the production lead time for custom orders?

Answer: Sample lead time: 3–7 working days. Custom mold lead time: 5–10 working days (we will confirm the cycle separately with you for complex molds). Mass production lead time: 7–20 working days, depending on product structure complexity and order quantity.

03 

Question: What’s your minimum order quantity for custom products?

Answer: We provide flexible MOQ solutions for all customized items. We will try our best to set a low minimum order volume to support your small-batch trial orders, meanwhile we can handle stable mass production to satisfy your long-term bulk demands.

04 

Question: What customization services can you provide?

Answer: We support comprehensive one-stop customization, including product size, shape, appearance, precision tolerance, surface treatment, hole grooving, bending, cutting and adjustable high-temperature resistant parameters. Custom engraved LOGO and exclusive customized packaging are also available as extra personalized options upon request.

05 

Question: Do you accept third-party inspection of finished products?

Answer: Yes, we fully cooperate with all mainstream authorized third-party testing institutions. Well-known organizations such as SGS, BV and other internationally recognized inspection bodies are all acceptable. We can supply complete official inspection reports and material certification documents as you require.

06 

Question: Can you customize raw material options for products?

Answer: Sure. We can select and match appropriate raw materials according to your application scenarios, working conditions and performance requirements, including alumina, zirconia, quartz, silicone and other special engineering materials, and adjust related performance parameters to meet your usage standards.

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