Positive Optics

01/06/2026

How to Choose BK7 vs Fused Silica?

👉 If your project is general visible-light imaging: BK7 is usually sufficient and cost-effective.

👉 If your project involves UV, high-power lasers, or precision optics: Fused Silica is the safer and more reliable choice.

👉 Consider the environment: Fused Silica performs better under thermal stress and in harsh conditions.

www.positiveoptic.com [email protected]

25/05/2026

25/05/2026

💥 Kindly note that our website and email address have been updated as below:

Website: www.positiveoptic.com

Email: [email protected]

👉 Welcome your inquiry!

12/05/2026

PO Optics Expert Tips on Optical Filter Coating 🌈

Understanding AOI (Angle of Incidence)Caption: Did you know that the performance of your optical filter shifts with the Angle of Incidence (AOI)? 📐As the angle increases, the center wavelength (CWL) typically shifts toward shorter wavelengths (Blue Shift).

PO Optics Insight: We offer custom coating designs optimized for your specific AOI to ensure peak performance in real-world environments.

🌐Explore our capabilities: www.pooptics.com

📧 Get a quote today: [email protected]

01/05/2026

🥰 Happy International Workers' Day!

Celebrating dedication, precision, and the people behind every great achievement.

23/04/2026

Precision in every wavelength. 🔬

Located in the heart of China's Optical Valley, PO Optics delivers high-performance custom lenses, prisms, and filters to innovators worldwide.

🌐 Visit us at www.pooptics.com ([email protected]) to bring your technical drawings to life.

06/04/2026

Optical Components Experts——Changchun Positive Optics(www.pooptics.com [email protected])

06/04/2026

🌷 Happy Easter from all of us at Changchun Positive Optics! May your day be filled with joy, peace, and bright moments. 🐰✨— www.pooptics.com

30/03/2026

Any interest for ✨optical coating✨ with competitive cost? AR, BBAR, DLC-AR, HR, AF/AS, ITO/FTO, IR-CUT filter coating, dielectric coating, metallic coating....

Please knock us:
🔗www.pooptics.com
📩[email protected]

23/03/2026

🌍 Any interest for such galvo scanner mirror? Kindly knock [email protected]!