How to choose the light source for your Olympus microscope
When purchasing a microscope, how to choose a light source for the microscope? What aspects should we pay attention to during the selection process? There are many light sources for microscopes on the market today, such as halogen lamps, mercury lamps, LED lamps, etc.
When we choose the light source of the microscope, we should pay attention to the size of the arc, which is the size of the light-emitting area of the light source. For example, the arc size of a 50W mercury lamp is 110X0.13MM, the arc size of 200W is 212X0.15MM, and the arc size of 100W The arc size is 0.125×0.125m. Whether it can just fill the entrance pupil of the system to make full use of the light energy is worthy of attention. For an excellent microscope and objective lenses of various magnifications, the "light energy" can be fully and effectively utilized. index. In microscope design, the choice of light source is crucial in the overall design. It determines the scope of use and cost of the instrument, and also reflects the grade of the instrument. Microscopes above the laboratory level should use mercury lamps as the main light source, while simple (dedicated) microscopes often use halogen lamps as the main light source.
The second issue we have to consider is its power. Should we use a high-power bulb or a low-wattage bulb? In principle, we should use a low-wattage light source as much as possible. This is undoubtedly beneficial to the structural design and cost. of. However, if the wattage is too low, it cannot activate the Olympus or the output is unstable, so it cannot be used. However, whether it can be excited is related to the utilization of light energy of the entire imaging system. How to fully and reasonably utilize light energy, the wattage can be reduced, but if we simply pursue high-power light sources for detection, it is not advisable, because It induces decay and quenching. Epi-emission microscopes are currently available with only 100W mercury or xenon and halogen lamps.
