Machine Vision & Robotic Guidance - Chroma
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Optical Filter Solutions for Chroma Technology manufactures high-performance optical interference filters using sputtering and ion beam technologies. Covering a spectral range from 200nm-3000nm, our wide-ranging capabilities enable us to offer a broad array of filter products offering superior durability and longevity, and spanning many industrial applications. Machine Vision & Robotic Guidance CHROMA TECHNOLOGY CORP ® Contact: [email protected] or +1-800-824-7662 • +1-802-428-2500 · www.chroma.com/machine-vision 0 10 20 30 40 50 60 70 80 90 100 Transmission (%) 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 Wavelength (nm) Chroma’s ContrastMax filters More light where you want it Competitor’s filters More light where you don’t 630 Red LED Output See only what you want to see Chroma’s filters give you 95% transmission across the passband, and nothing else. Result: Optimal image data High-Performance Machine Vision Filters It’s all about the contrast Measure the difference Chroma’s ContrastMax filters provide a dramatic improvement in contrast over competitor’s color glass-based filters. NO FILTER Color Camera Image Ambient Light + RGB LED Lighting GOOD CONTRAST 49.2 % RED/GREEN CONTRAST 18.3 % RED/PURPLE CONTRAST Competitor’s Narrow Green Bandpass Filter 0 50 100 150 200 250 0 100 200 300 400 500 600 Gray Value Distance (pixels) 150.35 74.11 51.19 64.7 % RED/GREEN CONTRAST 35.1 % RED/PURPLE CONTRAST ContrastMax Standard MV525/40 Green Vision Filter 0 50 100 150 200 250 0 100 200 300 400 500 600 Gray Value Distance (pixels) 165.55 73.83 35.50 BETTER CONTRAST 68.7 % RED/GREEN CONTRAST 41.4 % RED/PURPLE CONTRAST ContrastMax Narrow MV520/20 Narrow Green #1 Vision Filter 0 50 100 150 200 250 0 100 200 300 400 500 600 Gray Value Distance (pixels) 168.50 75.41 31.23 BEST CONTRAST
Transcript of Machine Vision & Robotic Guidance - Chroma
Optical Filter Solutions for
Chroma Technology manufactures high-performance optical interference filters using sputtering and ion beam technologies. Covering a spectral range from 200nm-3000nm, our wide-ranging capabilities enable us to offer a broad array of filter products offering superior durability and longevity, and spanning many industrial applications.
Machine Vision & Robotic Guidance
C H R O M A T E C H N O L O G Y C O R P ®
Contact: [email protected] or +1-800-824-7662 • +1-802-428-2500 · www.chroma.com/machine-vision
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Chroma’s ContrastMax filtersMore light where
you want it
Competitor’s filtersMore light where
you don’t
630 Red LED Output
See only what you want to seeChroma’s filters give you 95% transmission across the passband, and nothing else.
Result: Optimal image data
High-Performance Machine Vision FiltersIt’s all about the contrast
Measure the difference Chroma’s ContrastMax filters provide a dramatic improvement in contrast over competitor’s color glass-based filters.
NO FILTER
Color Camera ImageAmbient Light + RGB LED Lighting
GOOD CONTRAST
49.2%RED/GREEN CONTRAST
18.3%RED/PURPLE CONTRAST
Competitor’sNarrow Green Bandpass Filter
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64.7%RED/GREEN CONTRAST
35.1%RED/PURPLE CONTRAST
ContrastMax StandardMV525/40 Green Vision Filter
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68.7%RED/GREEN CONTRAST
41.4%RED/PURPLE CONTRAST
ContrastMax NarrowMV520/20 Narrow Green #1 Vision Filter
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November 2016
C H R O M A T E C H N O L O G Y C O R P ®
Contact: [email protected] or +1-800-824-7662 • +1-802-428-2500 · www.chroma.com/machine-vision
Superior blocking Can your filter block unwanted light from a laser or a bright LED?
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Competitor 532nm Narrow Green Bandpass Filter
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ContrastMax MV525/40 Green Vision Filter
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We know that you wouldn't aim a laser pointer directly on your imaging field of view, like in this image.
But what if you use a laser or structured illumination in your imaging process, and you want to see it in one channel but not in the other channel?
Or what if very bright light from a laser or LED that you don’t want to detect is either scattered or reflected into the scene?
ContrastMax filters provide the optical density you need to block out that bright, unwanted light and see only what you want to see.
CONTRASTMAX MV525/40 Green Vision Filter
COMPETITOR 532nm Narrow Green Bandpass Filter
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20nm-wide Narrow Bandpass Filtersplotted with common LED spectra
MV405/20 395–415nm
MV450/20 440–460nm
MV490/20 480–500nm
MV532/20 522–542nm
MV590/20 580–600nm
MV635/20 625–645nm
MV660/20 650–670nm
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40nm-wide Standard MV Bandpass Filtersplotted with common LED spectra
MV380/60 350–410nm
MV470/40 450–490nm
MV525/40 505–545nm
MV585/40 565–605nm
MV630/40 610–650nm
MV660/40 640–680nm
MV785/40 765–805nm
MV850/40 830–870nm
Standard 40nm-wide filters are intended for routine use while Narrow 20nm-wide filters offer the highest levels of precision for laser diodes and LEDs.High-Performance Machine Vision Filters
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