Product Descriptions :
| Characteristics: | Ultra-Clear Optical Glass |
| Type: | Optical glass |
| Materials: | Ultra-Clear Glass, Low-Iron Glass |
| Peak Transmittance: | >90% ( raw material) |
| Peak Transmittance(AR coating): | 99.5% (AR coating) |
| Cut-off depth: | OD2-OD3 |
| Surface Quality: | 60/40 scratch-dig |
| Shape: | Square, round and customized |
| Color: | Transparent |
| Dimension: | specified |
| Thickness: | specified |
| Remark: Support customized for different size and thickness: (1) Common for 86x86mm, 80x80mm, other can customized, max. 300x300mm (2) Thickness available: 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm…etc. (3) Single side or Double side AR coating, range from 380nm -1100nm or 400-700nm. | |
Optical Ultra Clear Glass materials:
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Picture 1: Ultra-Clear Glass raw material |
What is Ultra-Clear Optical Glass?
Ultra-Clear Optical Glass also known as low-iron glass or high-transparency glass, it is a type of optical glass with significantly higher light transmission and lower iron oxide content compared to standard optical glass.
What’s key characteristics for Optical Ultra-clear Glass?
Optical Ultra-Clear Glass (or Optical Low-Iron Glass) refers to a specific grade of ultra-clear glass manufactured to meet exceptionally high standards required for optical applications:
Superior Optical Homogeneity: It possesses extremely uniform refractive index throughout the entire material to prevent beam distortion or wavefront error.
Minimized Internal Defects: Strictly controlled levels of inclusions, bubbles, and striae (glass streaks) to reduce light scattering.
Precision Annealing & Low Stress: Undergoes specialized annealing processes to eliminate internal stress, which helps avoid birefringence that can affect polarized light.
High Surface Quality: Can be ground and polished to optical-grade surface finishes (e.g., λ/10) for applications like lenses and windows.
What are the advantages of Ultra-Clear Optical Glass with AR Coating?
AR-coated ultra-clear optical glass reduces surface reflection, enhancing light transmittance while minimizing glare, ghosting, and flaring. Moreover, it improves image sharpness and color accuracy, removes green tint, and adds durability and scratch resistance.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nanomaterials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift.
Liyuan optoelectronics have been focus on optical coating for more than 17 years and offer one-stop optical filters solution including Narrow Bandpass Filters, IR cut-off Filters, Longpass & Short Filters, Notch Filters, ND filters, Star filters and Optical sapphire block.
