Spectral confocal sensors and color laser coaxial displacement meters work the same way because different manufacturers have redefined their products when promoting them. So, what is the difference between a color laser coaxial displacement meter and a spectral confocal sensor? Shenzhen Liyi spectral confocal Xiaobian for you to answer:

Color laser coaxial displacement meter and spectral confocal sensor based on the principle of spectral confocal, visible light through the lens group, dispersed into red, orange, yellow, green, blue, indigo and purple seven colors, and then use the reflection principle to convert the reflected wavelength into the corresponding displacement value.

As we all know, the sun in nature belongs to white light. White light is not the purest form of light, but many monochromatic lights. When light is propagated in different media, there may be Angle deviation, but under actual white light irradiation, single-line light will be refracted many times in different media.

For different monochromatic light, the refractive index of optical materials (lenses) is different, that is, the shorter the refractive index, the larger the refractive index, and the smaller the refractive index at different wavelengths (this is why different telescopes have what is called chromatic difference). The same thin lens has different focal lengths for different monochromatic light, and each monochromatic light has a different focal length. Depending on the wavelength of the color light, their image points are arranged on the optical axis, away from the lens (different monochromatic light has different wavelengths), so imaging produces what is called chromatic lens error.

Chromatic aberration lens errors cause images to produce patches or halos. In photographic equipment, special treatment should be performed to minimize imaging problems caused by chromatic aberration lens errors. Common elimination methods include double bonding system and double separation system.

The above is about the difference between color laser coaxial displacement meter and spectral confocal sensor to share this, Shenzhen Lihe Technology is a professional fiber coaxial displacement, color laser displacement, spectral confocal sensor, fiber coaxial displacement meter production and development of spectral confocal displacement meter manufacturers.