MidOpt Lens Filters

MidOpt filters are the premier solution for industrial imaging to ensure flawless control, dependable results and the very best image quality. Every filter is produced with the highest standards in durability, so they can withstand even the harshest environments. Unlike traditional filters, MidOpt filters are designed with a Gaussian transmission curve to allow maximum transmission, emulate the output of the most common LED wavelengths and are less angular dependent.

Some of the many industries MidOpt serves include:

› Machine Vision/Factory Automation
› Security and Surveillance
› License Plate Recognition/ITS
› Medical and Life Science
› Agricultural Inspection
› Aerial Imaging
› Motion Analysis
› Photography and Cinematography

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  • Protective Filters

    Protective Filters

    Protective Filters are best used for lens protection. They’re made from high-quality polished glass and optical-grade acrylic and are available with anti-reflection coating to maximize transmission.  

  • Acrylic Filters

    Acrylic Filters

    Acrylic Filters are a durable, lightweight and economical solution for inspection windows. They can protect a lens in environments where broken glass might pose a problem and can be custom cut to fit the system.  

  • Light Balancing Filters

    Light Balancing Filters

    Light Balancing Filters are used to achieve a more accurate color rendering and to keep costs low with LED or metal halide lighting. The object being inspected will have a more natural look to the human eye.  

  • Neutral Density Filters Before ND Filter (Left); After MidOpt ND Filter (Right)

    Neutral Density Filters

    Neutral Density Filters are designed to reduce light intensity neutrally over a specific wavelength range without affecting image color and contrast. They serve as "sunglasses" for your system and can be used with monochrome or color cameras. Neutral...

  • Polarizer Filters Before: Reflected glare from shiny, curved surfaces affect the performance of the camera's auto-gain feature and interferes with reliable pattern detection.

    Polarizer Filters

    Polarizers are designed to reduce specular glare by passing only the light polarized in the direction perpendicular to the reflected light (glare). In addition, they help improve contrast, increase color saturation and detect imperfections in transparent...

  • Shortpass Filters No filter and sensor damage
caused by a 1040nm YAG laser

    Shortpass Filters

    Shortpass Filters, also known as "IR-cut" filters, are specially designed to pass a broad spectrum of visible shorter wavelength light, while blocking longer interfering near-infrared wavelengths. Shortpass Filters are typically found over the image...

Imaging at 940nm is helpful for moisture detection, as moisture absorbs this wavelength. Without using a filter to block interfering visible wavelengths, the below results cannot be achieved. IMAGE WITH CCD/MONOCHROME SENSOR
Before: Water levels with visible light, a 940 LED and no filter, resulting in low contrast.

    Longpass Filters

    Longpass: MidOpt Longpass Filters with StablEDGE® technology are ideal for optimizing infrared imaging. Their unique hybrid design offers exceptional visible blocking. And because of the low sensitivity of CCD/CMOS sensors in longer wavelengths...

  • NDVI Agricultural Inspection Visible, Raw NDVI, NDVI False Color

    Dual & Triple Bandpass Filters

    Dual Bandpass Filters transmit two specific wavelength ranges through a single filter. They allow for natural color rendition during the day and infrared imaging at night. Triple Bandpass Filters are specially designed to be used with converted consumer...