Saturday 2 April 2016

Digital Microscope Camera

For Capturing the Image from Microscope we have to take the help of the Microscope Camera which comes with various price tag depending upon the type ( CMOS or CCD or Cooled CCD) and application. In most of the Bright-field application  we use CMOS or CCD  Microscope Cameras.

2MP Cam3MP Cam

There are few points to be considered prior to select a microscope camera most of the time people think that a camera with high Megapixel is a better choice and they are not always right.

I am briefing the points that is to be considered prior to select the Microscope camera :

1) Pixel size of the sensor :  The the bigger the pixel size of the sensor the more details will be capture and the image will be better hence a sensor with 6.5 micron x 6.5 micron will have a better image quality than a 2.2 micron x 2.2 micron pixel size sensor.

2) Size of the sensor :  Size of the sensor is one of the main criteria to have a better image that is to say a 1/2 inch CMOS camera sensor will have better image than a 1/3 inch CMOS sensor.

3) Signal to noise ratio : The higher the value of signal to noise ratio the better the Image quality.

4) Frame rate : The frame rate of a microscope camera should be more than  16 fps ( Frames per second ) as value less than this will give jumping image / flicker. With higher Megapixel format the frame rates goes on decreasing.

5) Application : What is the application for which you would like to buy a camera  
a) If its Bright field Microscope then a choice of CMOS or CCD camera will do.
b) If it is a Fluorescence or Dark field or low light application then Peltier Cooled CCD is a better choice.

So next time when you go for a purchase of microscope camera do not get confused as 1.3 MP can have better Image than a 16 MP Camera provided the 1.3 MP camera has - Larger sensor  format than 16MP, Higher pixel size, higher frame rate and higher signal to noise ratio.

So a 1.3 MP camera may cost Higher than a 16 MP camera because of the above specifications.