QB23, QB24, QB26, QB29 Blue Glass, Selective Absorption Type Glass

  • QB23 QB24 QB26 QB29 Blue Glass

Product features

● Selective Absorption Type

●High UV/Blue Transmission

● Deep Red/IR Blocking

● Stable Performance

Product Detail

Product Descriptions:
Characteristics:QB23 QB24 QB26 QB29 Blue Glass
Type:Selective Absorption Type Glass Filter
Color:Blue
Minimum Transmissivity(%):See Technical Requirements Table below
Shape :Round or customized*
Dimension(in mm):Customized**
Thickness(mm):0.21、0.3、0.55、0.7、1.0、1.1、2.0、3.0mm…etc.
Material:QB23 QB24 QB26 QB29 Blue Glass
Spectral range:380-1100nm
Remark: 

QB Blue Glass Characteristics:

1. Basic Characteristics Table
TypeThickness (mm)A[2856K]D65Chemical StabilityNDα×10⁻⁷ (/℃)Tg (℃)Ts (℃)S
xyYxyYDADW
QB2320.2070.38520.80.1650.24827.7121.517934775502.56
QB2420.1490.0350.70.1530.0281.9431.513934775502.56
QB2620.3180.4742.40.2330.3648.5651.536745496242.82
QB2920.1510.0330.70.1540.0261.8121.517934775502.56
2. Technical Requirements Table
TypeThickness (mm)320(nm)334(nm)350(nm)405(nm)480(nm)600(nm)633(nm)694(nm)750(nm)
QB232≤4.0≥60.3≤0.1
QB242≤14.7≥68.0≤19.4≤0.1≤0.9
QB262≥10.6510   ≥70.9633    ≤5.7≤5.7≤0.1
QB292≤23.0380   ≥83.0≤22.0≤0.1≤14.7

Comparative Type List Colored Filter Glass:

ModelBubbleStiripeStress
QB23C-B3C3
QB24C-B3C3
QB26D-C3C4
QB29C-B3C3

What is typical application for QB23, QB24, QB26, QB29 Blue Glass Blue glass?

Application AreaSpecific Use CasesPrimary Function
Biomedical & Life SciencesFluorescence microscopy, flow cytometry, phototherapy devices, DNA/protein analysis instrumentsSpectral isolation of UV/blue excitation wavelengths; blocking unwanted visible/red background fluorescence; enhancing signal-to-noise ratio for high-sensitivity bioassays
Industrial Machine Vision & InspectionUV curing monitoring, semiconductor wafer inspection, food safety testingUV/blue band filtering to highlight UV-fluorescent defects; suppressing ambient visible light interference; improving defect detection accuracy
Optical Instrumentation & SpectroscopyUV-Vis spectrophotometers, colorimeters, wavelength calibration standards, astronomical observation filters, laser line filtersPrecise wavelength control for spectral calibration; blocking out-of-band light; ensuring accurate color and intensity measurements
Specialized Imaging & PhotographyUV photography, forensic imaging, astronomical photography, artistic infrared-blocking filtersSelective UV/blue transmission with deep IR/red blocking; capturing UV-specific details; creating specialized color/contrast effects
Display & LightingUV LED curing systems, blue light display filters, UV disinfection equipmentWavelength purification for UV/blue light sources; filtering out unwanted visible/IR emissions; ensuring uniform light output

What is the difference between Color Filter Glass and Interference coated filter glass?

Color Filter Glass is an optical filter made by doping molten glass with metal oxides or rare-earth elements, causing it to absorb specific wavelengths and transmit others, which gives it its color. Interference Coated Filter Glass is a glass substrate with thin-film layers that uses optical interference to selectively transmit or reflect specific wavelengths. In short, interference filters are for high-precision applications, while color filter glass is often used for simpler, cost-effective filtering.

(1) Interference Filters(2) Colored Glass Filters
450 & 850nm dual bandpass filter
Interference Filters, or thin-film filters, work by using wave interference. Multiple ultra-thin layers on a substrate are designed to reflect unwanted wavelengths, while constructively let the desire wavelengths to pass through.Colored Glass Filters work by absorption. Dyes or metal ions inside the glass absorb unwanted light colors, allowing only the desired color light to pass through. They are more simple and only some certain wavelengths.
Related products:

QB1 QB2 QB3 QB4 QB5 Blue Glass, Selective Absorption Type Color Filter Glass

QB9 QB10 QB11 QB12 QB13 Blue Glass, Selective Absorption Type Filter Glass

Shenzhen Hengda Liyuan Optoelectronics is focus on optical coating and optical filters solution, can provide but cut-off type glass and selective Absorption type glass.

  • Cut-off Type Glass: Ultraviolet Glass, Golden(Yellow) Glass, Red Glass, Infrared Glass
  • Selective Absorption Type Glass: Ultraviolet Glass, Violet Glass, Green Glass, Golden(Yellow)Glass, Red Glass, Infrared Glass, Protective Glass and Heat absorbing Glass.

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