‌LB1 (VG9) Green Optical Color Glass Filter: Precision 532nm Light Control

‌
LB1 (VG9) Optical Glass is a high-performance, ion-colored green filter designed for selective light transmission. It features a peak transmission in the green spectrum (approx. 530nm-540nm) while effectively absorbing red and violet wavelengths. Commonly used as a Schott VG9 equivalent, it is essential for 532nm laser experiments, fluorescence microscopy, and creative infrared-effect photography.

Technical Specifications of 532nm light filtering glass

Feature	Specification (LB1 / VG9)
Material Type	Ion-Colored Optical Glass
Peak Transmission	>85% at 535nm (Typical for 2mm thickness)
Equivalent Grades	Schott VG9, HOYA G533, Chance Pilkington GR3
Spectral Range	400nm – 700nm (Visible Spectrum Focus)
Refractive Index ($n_d$)	1.51 – 1.54
Surface Quality	60/40 or 40/20 Scratch/Dig
Custom Shapes	Circular, Square, Drilled, or Step-cut

📥 Download LB1-VG9 Technical Data Sheet (PDF)

Key Applications of LB1 (VG9) Green Color Glass Filter

1. Laser & Scientific Research: 532nm Precision

In laser technology, the LB1 VG9 filter acts as a critical component for stray light suppression. It is highly sensitive to the 532nm “Golden Wavelength,” allowing researchers to:

• Enhance Signal-to-Noise Ratio in Raman spectroscopy.

• Standardize Beam Quality in industrial laser marking systems.

• Calibrate Spectrophotometers using its stable selective absorption profile.

2. Fluorescence Microscopy & Life Sciences

Designed for high-contrast imaging, this green filter is essential for:

• GFP (Green Fluorescent Protein) Observation: Effectively blocking excitation light while passing the green emission signal.

• Bio-medical Diagnostics: Improving clarity in tissue analysis and cellular imaging.

3. Industrial Vision & Optical Sensors

• Automated Optical Inspection (AOI): Enhancing contrast for green-colored components on assembly lines.

• NDT (Non-Destructive Testing): Used in UV-fluorescence leak detection to isolate the green glowing tracers.

---

Why Choose YOUJIA OPTICAL for your LB1/VG9 Filters?

• High Transmission: Over 85% at the peak 532nm wavelength.

• Schott VG9 Equivalent: Consistent performance at a competitive B2B factory price.

• Custom Fabrication: Available in circular, square, or step-cut shapes with precision surface quality (40/20 Scratch/Dig).

FAQ

• Q: Is LB1 glass identical to Schott VG9?

  • A: Yes, LB1 is the Chinese standard equivalent to Schott VG9. They share nearly identical transmission curves and physical properties, making them interchangeable in most optical designs.

• Q: What thicknesses are available for custom orders?

  • A: We provide thicknesses ranging from 0.5mm to 20mm, with a standard tolerance of $\pm 0.05mm$.

• Q: Can I get a transmission curve for my specific batch?

  • A: Absolutely. YOUJIA Optical provides spectral test reports (PDF) for every professional batch order.