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| Brand Name : | Longway Glass |
| Model Number : | LW16092644 |
| Certification : | ISO9001 |
| Price : | NEGOTIATION |
| Payment Terms : | T/T,Western Union |
| Supply Ability : | 30000 Pieces per Month |
Durable BK7 Glass Penta Prism For Long-lasting Alignment In Optical Instruments
Material:
1.Made from BK7 optical glass, a high-quality borosilicate crown
glass with exceptional homogeneity and low thermal expansion.
2.Features anti-reflective (AR) coatings on critical surfaces to
minimize light loss (up to 99.5% transmission) and reduce stray
reflections
Properties:
1.High durability: Resists scratches, humidity, and chemical corrosion, ensuring
longevity in harsh environments.
2.Precision angles: 45°-90°-45° design maintains beam deviation accuracy within ±3
arcseconds for stable alignment
3.Broadband compatibility: AR coatings optimized for visible to near-infrared spectra
(350-2000nm).
Function:
1.Beam steering: Deviates incoming light at a fixed 90° angle without inverting the
image, critical for laser systems and metrology tools.
2.Alignment stability: Maintains positional accuracy over time due to BK7’s low stress
birefringence and robust mounting options.
Applications:
1.Laser systems: Used in interferometers, rangefinders, and fiber optic alignment
for precise beam control.
2.Metrology: Essential in theodolites and autocollimators for industrial and
astronomical measurements.
3.Defense/Aerospace: Deployed in targeting systems and periscopes due to shock
resistance and reliability
| Item | Optical Prism |
| Material | Optical glass, Qurartz glass, borosilicate glass, |
| Diameter Tolerance | +0/-0.15 mm |
| Thickness Tolerance | +/-0.15mm |
| Processed | by grinding, polishing |
| Surface Quality | 80/50,60/40,40/20 |
| Material Quality | no scratches and air bubble |
| Transmission | above 90% |
| Chamfer | 0.1-0.5 mm x 45° |
| Surface Coating | Available |



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| Company Info. |
| Shanghai Longway Special Glass Co., Ltd. |
| Verified Supplier |
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