BG60 - BG64 Blue Filter Glass0 pages

BG60, BG61, BG62, BG63 & BG64 Blue Filter Glass
New filter glass with significant advantages: leading edge in inner quality and optical
properties, excellent climatic resistance, good bending strength and broader pass band
ideally suited as IR cut filter
Image sensors have become common place. Integrated into cell phones and
laptops, digital compact cameras and single lens reflex cameras as well as line
scan camera systems and range finders, their CCD* and CMOS** sensors are
often equipped with infrared (IR) cut filters in order to get natural colors.
They make digital cameras respond to light as our eyes do.
SCHOTT’s new IR filter glasses BG60 – BG64 have been designed to perform
in difficult environments. Equipped with an additional coating, these filters
remain completely transparent for more than 1000 hours without any surface
corrosion*** and enable an extraordinary image quality.
BG60, BG61, BG62, BG63 & BG64: Internal transmission at a thickness of 1 mm
SCHOTT Optical Filter Glass

Internal transmittance (diabatic scale)

0.998
0.995
0.99
0.98
0.97
0.96
0.95
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
0.01
0.001
1E-05
300

400

500

600

700
800
Wavelength (nm)

900

1000

1100

BG64     BG63     BG61     BG60     BG62

Applications:
•t Consumer
•t Medical
1200 •t Imaging
•t Surveillance
•t Industrial applications

BG60

BG61

BG62

BG63

BG64

refractive index ne
nd

1.5334
1.5313

1.536
1.534

1.539
1.536

1.53369
1.531795

1.532103
1.530238

cut-off wavelength λ0.5

633 nm

644 nm

644 nm

614 nm

619 nm

  at thickness

@ 0.3mm

*t CCD (charges coupled device)
**t CMOS (complementary metal oxide semiconductor)
***t
According to SCHOTT test “Condition & Handling”

@ 0.21 mm @ 1.5 mm

Advantages:
•t xtraordinary high ratio between visible
E
transmittance and NIR absorption
•t epeatable optical performance due to
R
mass production (continuous melting)
•t xcellent inner quality, e. g. low striae
E
•t igh climatic resistance (coated filter
H
withstand at least 1000 h of 85 °C/85 %
RH humidity test)***
•t ood bending strength
G
•t xtraordinary image quality significantly
E
above industry average
­
•t road pass band for simplified coating
B

@ 3 mm

Forms of Supply:
•t Matt plates
•t Polished filters
•t dditional coating, framing and
A
assembly available