Measuring microscopeprice

NOTE 1The pixel pitch in the 45 degree diagonal direction is not the same as in the vertical and horizontal directions. Therefore, the diagonal pixel pitch is used when applying this table to measurements in the diagonal directionsNOTE 2There are three planes for determination of the resolution in e.g. LP/mm. It can be in the object space, on the sensor plane or in the image with a given output magnification. In most cases the resolution on the sensor plane is the important one. To get the right value for this situation the image file should be scaled to the Sensor dimension in which case the pixel pitch on the sensor is equal to the pitch of pixels in the image file.

DigitalMeasuring Microscope

Measuring microscopefor sale

One very important parameter for testing a digital imaging device is the resolution*. But there are different ways to express the resolution of a digital camera which are sometimes confusing. Here are the most common units.

Industrial Measuring MicroscopesAccurate measurements with exceptional precision, reliable performance, and durability.View more Handheld Portable Stand / Shop Microscopes

Resolition is measured using edges, Siemens stars or other regular structures with aíncreasing frequencies. Units like LW/PH, LP/PH, or Cycles per pixel are independent of the sensor size and the pixel pitch. They just take the resulting image and its frequency content into account not caring about the size of each pixel. Dimensions like LP/mm, L/mm, or Cycles/mm require the knowledge about the sensor size / pixel pitch.The following table and explanation will be part of the upcoming revision of ISO 12233 and was created by Don Williams.

Measuring microscopeapp

LW/PH = Line width per picture heightLP/mm = Line pairs per millimetreL/mm = Lines per millimetreCycles/mm = Cycles per millimetreCycles/pixel = Cycles per pixelLP/PH = Linepairs per picture height

*There are several methods to measure the MTF and/or the SFR and all of these methods have their own advantages and disadvantages. See conference paper »

BoliOptics sells professional, high quality microscopes, microscope accessories, and magnifying lamps. We supply research laboratories, medical centers, universities, industrial manufactures, factories, students, and hobbyists world wide. Our parts and accessories are compatible with Leica, Olympus, Nikon, and Zeiss.