Midopt Training

Posts tagged with Near-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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Protecting Sensors from Laser and NIR Damage

For applications in which full spectrum infrared (i.e., heat) and/or UV radiation are an issue. The SP701 and SP705 allow cameras to eliminate blooming to achieve natural color, and protect the camera sensor from IR damage. The SP701 blocks UV light and IR light up to 1550nm. Heat-resistant Borofloat® substrates available in 1mm and 2mm thicknesses.

Custom unmounted sizes can be provided up to 760 x 200mm in size.

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Solutions

Protecting Sensors from Laser and NIR Damage

For applications in which full spectrum infrared (i.e., heat) or UV radiation are an issue. Hot mirror blocking throughout the UV and NIR out to 1500nm …

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