Midopt Training

Posts tagged with IR

Improving Contrast in Print OCR with IR Imaging

In the original image, a white backlight is used without a filter. When a MidOpt® BP850 Near-IR Bandpass Filter is placed over the lens and used with an IR backlight, the filter blocks the visible portion of the spectrum but passes only the ink illuminated by the output wavelength of the IR backlight. This makes the invisible print visible and also creates optimal contrast.

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Application

Improving Contrast in Print OCR with IR Imaging

In the original image, a white backlight is used without a filter. When a MidOpt® BP850 Near-IR Bandpass Filter is placed over the lens and used with …

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Create Contrast Between Two Different Materialsof the Same Color

In this application we demonstrate the benefits of using a MidOpt® optical filter to help create excellent contrast in a machine vision inspection application in the infrared (IR), at the 830-850nm range.

Application

Create Contrast Between Two Different Materialsof the Same Color

Achieve contrast in machine vision inspection applications operating in the near-infrared (Near IR), at the 830-850nm range.

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Machine Vision Optical Filter Color Rendition
Machine Vision Optical Filter Color Rendition

Blocking IR Wavelengths for Natural Color Rendition

Also known as a hot mirror, SP700 Near-IR/UV filters are useful for broad visible wavelength transmission and to block IR over the sensitivity range of a monochrome camera with minimal effect on the red portion of the spectrum.

VIEW SP700

Application

Blocking IR Wavelengths for Natural Color Rendition

Also known as a hot mirror, SP700 Near-IR/UV filters are useful for broad visible wavelength transmission and to block IR over the sensitivity range …

Learn more