MidOpt Filters Where Image Quality Begins - Site ftp Elvitec

Monochrome or Color
Most color cameras use a Bayer filter
array which utilizes red, green and blue
filters arranged over what is otherwise a
monochrome sensor.
A color camera analyzes each pixel’s color
information and, combined with that of
adjacent pixels, recreates (or essentially
guesses at) the full color image.
Color
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25% Efficient
Red and Green pixels are not
utilized when a single color
blue is all that is required,
decreasing efficiency of the
color camera
Monochrome
This process of creating a color image
introduces variability. Errors can occur
and loss of resolution is inherent.
Resolution loss is most pronounced when
detection of a single or a few colors is all
that is required.
Monochrome with Filter
90% Efficient
The MidOpt BP470 Blue
Bandpass Filter allows the
entire sensor to detect light
intensity
RGB (Color) Sensor
25% Red Pixel
50% Green Pixel
25% Blue Pixel
Monochromatic imaging with MidOpt filters significantly increases camera efficiency
Entire monochrome sensor
is used to detect light (color)
intensity
Filter Quality Awareness
MidOpt BP470 Blue Bandpass Filter
Transmission (%)
100
90
80
70
60
50
40
30
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10
BP470
0
300 400 500 600 700 800 900 1000 1100
Wavelength (nm)
Combined with BP470 Blue Bandpass Filter that transmits
90+% of the desired blue spectrum, a monochrome sensor is
more efficient (90% vs 25%)
Original color image, excited
with UV 395 nm LED,
data code emitting blue
fluorescence, no filter
Midwest Optical Systems
Monochrome sensor, blue
fluorescence, no filter
Monochrome sensor, blue
fluorescence with MidOpt
BP470 Blue Bandpass Filter
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