DIC Nomarski Video Inspection Microscope BVM-DIC

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  • Portable DIC Nomarski Imaging Microscope
  • 5x, 10x, 20x and 50x DIC objective lenses
  • Fine focus mechanism
  • Can be customized for inverted mode
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DIC Nomarski Video Inspection Microscope, BVM-DIC Series

Explore the advanced BVM-DIC Microscopy System for high-resolution imaging, enhanced contrast, and precise material analysis. Upgrade your research capabilities today.

The BVM-DIC Series Differential Interference Contrast Microscopy System is an essential tool for advanced research. Utilizing dual-beam polarization interference, it delivers high-resolution imaging with enhanced contrast, ideal for detecting conductive particles, surface cracks, and microbial cells. The system’s adjustable Nomarski prism allows for optimal brightness and interference color adjustments, providing superior observation.

Key features of the BVM-DIC include magnification options up to 50X, multiple objective lenses, and versatile lighting choices, such as 10W white or blue LEDs. This system excels in precise material analysis, ensuring accurate detection of fine structures, defects, and living cell activity.

Whether for conductive particle detection in LCD/OLED circuits or observing microbial cell activity, the BVM-DIC Series offers unparalleled detail and clarity. Its high-resolution capabilities clearly display intracellular contours and structures, making it perfect for various research applications. Upgrade your microscopy research with the BVM-DIC Series and experience the pinnacle of imaging performance.

Description

The BVM-DIC series DIC (Differential Interference Contrast) microscopy system operates based on the principle of dual-beam polarization interference, designed to enhance the contrast and detail of samples. The process is detailed below:

  1. Initial Polarization: Linearly polarized light emitted from the polarizer passes through a Nomarski prism with birefringent properties. This prism splits the light into two beams of polarized light that vibrate perpendicularly to each other, introducing a specific phase difference.
  2. Sample Interaction: These two incoherent light beams are directed onto the sample. Variations in the sample’s surface or differences in refractive index create an optical path difference between the beams. After interacting with the sample, the beams pass through the Nomarski prism again and recombine.
  3. Interference Analysis: The recombined light then passes through the analyzer, aligning their vibration directions and causing interference.
  4. Enhanced Contrast: The interference and amplitude changes result in enhanced contrast between light and dark areas of the sample, providing a detailed image with a three-dimensional, relief-like appearance.

The horizontally adjustable Nomarski prism functions like a phase-shifting compensator, altering the brightness and interference colors between the object and the background, thus achieving optimal observation effects. Figure 1 illustrates the DIC100 series differential interference microscope.

This advanced system is ideal for researchers and academics looking for precise, high-contrast imaging of their samples.

Specifications

Cat # Magnification NA WD (mm) Focal Length (mm) Resolution (um) OFOV (mm) IFOV (mm) Thread
BVM-DIC-5XR 5X 0.15 20 3 6 2.23 5 25 M20*0.705
BVM-DIC-10XR 10X 0.30 15 1 8 1.1 2.5 25 M20*0.705
BVM-DIC-20XR 20X 0.40 10 9 0.75 1.25 25 M20*0.705
BVM-DIC-50XR 50X 0.80 2.5 3.6 0.41 0.5 25 M20*0.705
working distance objective lens parameters (45mm parfocal length)
Cat# Magnification NA WD (mm) Focal Length (mm) Resolution (um) OFOV (mm) IFOV (mm) Thread
BVM-DIC-2.5XL 2.5X 0.075 6.2 8 0 4.46 10 25 M26*0.705
BVM-DIC-5XL 5X 0.15 23.5 40 2.2 5 25 M26*0.705
BVM-DIC-10XL 10X 0.30 22.8 20 1.1 2.5 25 M26*0.705
BVM-DIC-20XL 20X 0.40 19.2 10 0.8 1.1 25 M26*0.705
BVM-DIC-50XL 50X 0.55 11.0 4 0.6 0.44 25 M26*0.705
working distance objective lens parameters (60mm parfocal length)

Dimensions

Application

1. Conductive Particle Detection in LCD/OLED and Other Products

Detecting conductive particles in LCD circuits is crucial for ensuring optimal conductive performance. An insufficient number of conductive particles can degrade the circuit’s conductivity, potentially leading to display failures. Conversely, an excess can result in raw material wastage. Additionally, adhered conductive particles can skew particle counts, leading to underestimation and inaccurate detection results.

As illustrated in Figure 1, conductive particles are not visible using a metallographic microscope with reflected light brightfield imaging. In contrast, Figure 2 demonstrates the clear outline of these particles when using a DIC microscope system. Figure 2 depicts conductive particles on an LCD screen captured with a DIC microscope, while Figure 1 shows the same area imaged with a metallographic microscope.

This highlights the superior capability of DIC microscopy in accurately detecting and analyzing conductive particles, making it an indispensable tool for researchers and professionals in the field.

 

Figure 1A. Brightfield, Blue LED, Monochrome Camera

Figure 1B. Brightfield, White LED, Color Camera

Figure 2A. DIC, Blue LED, Monochrome Camera

Figure 2B. DIC, White LED, Color Camera

2. Sample Surface Crack and Defect Detection

Differential Interference Contrast (DIC) microscopy stands out as a powerful tool in modern material metallographic examination, offering several advantages. It requires relatively low sample preparation and provides a pronounced relief effect in observed images.

Figure 3 illustrates this capability: the left side shows fine structures or defects that are invisible or barely visible under an ordinary metallographic microscope with incident light, while the right side reveals these details clearly using the MVM-DIC Series Differential Interference Contrast microscope system. Additionally, the MVM-DIC series system excels at revealing particles, holes, cracks, and uneven contours in the sample, ensuring more reliable material analysis.

This makes the MVM-DIC Series an indispensable instrument for researchers and professionals focused on detailed and accurate detection of surface cracks and defects.

Figure 3A. Brightfield Figure 3B. DIC Nomarski

3. Microbial Cell Detection

The BVM-DIC Series Differential Interference Contrast microscope system enables non-destructive detection of living cell activity. Utilizing optical staining effects, it allows for the adjustment of images with different interference colors and the ability to change the focal length to obtain clear images at various depths. With high resolution, this system can distinctly display intracellular contours and structures. Figures 4 and 5 demonstrate the comparative results, highlighting the effectiveness of the BVM-DIC system in microbial cell detection.

This advanced system is ideal for researchers and academics focused on precise and detailed observations of living microbial cells.

Figure 4A. Earthworm, Brightfield, 50x Figure 4B. Earthworm, DIC, 50x
Figure 5A. Cucurbit Stem, brightfield Figure 5B. Cucurbit Stem, DIC

 

Configuration

  1. DIC Objective Lens (to select): 2.5x, 5x, 5xL, 10x, 10xL, 20x, 20xL, 50x, 50xL
  2. BF/POL objective lenses (Optional): 1.25x, 2x, 2.5x, 4x, 5x, 10x, 20x, 25x, 40x, 50x, 60x, 80x, 100x, 150x
  3. Light Source: White LED (Default), Blue LED, Halogen
  4. Camera Mount: C-mount, M42 Mount, or M52 Mount
  5. Camera Selection: Color / Monochrome, USB3, HDMI, Cooled 0-, 1- or 2-step, 1.4MP to 100MP resolution

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