Custom B270 Optical Glass Sheets

Custom B270 Optical Glass Sheets

B270® optical glass, developed by SCHOTT, is a premium crown glass known for its excellent transmission in the visible range, high surface quality, and outstanding dimensional stability. At TIHOTOPTICS, we offer precision-cut custom B270 glass sheets tailored to your exact dimensions, surface finishes, and thicknesses — ideal for demanding optical and scientific applications.

Key Features of Our Custom B270 Glass

• High Visible Light Transmission
  Over 91% transmittance at 1 mm thickness, ideal for optical monitoring, spectroscopy, and visual clarity.
• Exceptional Surface Quality
  Surface finish available from 80/50 down to 40/20 scratch-dig, suitable for advanced coating and laser optics.
• Dimensional Precision
  CNC cutting, double-sided polishing, and tight tolerance control from ±0.02 mm, compatible with cleanroom optical assembly.
• Custom Thickness Options
  From ultra-thin 0.21 mm to 6 mm, with reduced bow and flatness control for critical thin-film processes.
• Cleanroom Packaging Available
  Optional ISO Class 6 packaging and ultrasonic cleaning ensure contamination-free delivery for lab or production use.

Applications of Customized B270 Glass

• Optical coating substrates (AR, HR, filter coatings)
• Witness plates for thin film deposition monitoring
• Sensor protection windows and optical windows
• Medical and life sciences instruments
• Spectrometers and photometric devices
• Microfluidic device bases and covers

Why Choose TIHOTOPTICS?

With over 15 years of optical glass fabrication experience, we offer:

• Fast turnaround for prototyping and volume orders
• High-yield processing with German and Japanese equipment
• Technical guidance on B270 use in photonics, diagnostics, and R&D

Frequently Asked Questions (FAQ)

Q1: Is B270 glass a cost-effective alternative to fused silica?

Yes. While fused silica offers better UV performance, B270 optical glass is a cost-efficient choice for visible-light applications requiring high flatness and optical clarity.

Q2: Can B270 glass be AR or HR coated?

Absolutely. The surface quality and thermal stability of custom B270 glass make it an excellent substrate for a wide range of optical coatings, including anti-reflective, mirror, and filter layers.

Q3: What cleaning and packaging options are available?

We offer ultrasonic cleaning, deionized water rinsing, and cleanroom-compatible packaging including vacuum-sealed trays and ISO-certified bags to protect against particles and contamination.

Q4: Do you support irregular shapes or cutouts?

Yes. With CNC machining, we can produce notched, slotted, or non-standard profiles to fit custom optical assemblies or devices.