How to Use the Reflective Surface of Your Dark Field Glasses

light illumination

Light illumination is the process by which light enters a sample to cause an electric charge to be excited. In the laboratory, this process occurs when a fluorescent or incandescent light source illuminates a particular area of a specimen. The fluorescent light is inserted into a chamber that contains mercury vapors. The mercury vapors are monitored throughout the experiment. When the light is detected, the excitation causes an electric current to be generated. This current is captured and sent to a microchip amplifier through an amp.

Fiber optic illuminator

A man that is standing in the grass

With this set-up, light can enter the specimen and be detected using a computer. One example of a microchip used in this type of illuminator is called a fiber optic illuminator. It has a microchip that is made up of millions of little optical fibers that are attached to a glass sphere that holds the specimen. The fibers give the illuminator the ability to focus light on a particular area of the sphere in the form of a beam. The amount of light entering the specimen can be controlled to measure the intensity of the light.

The type of fiber used in this type of lamp also has an effect on the type of illumination sources that may be used. The material is available in several different colors. It is important to choose the appropriate color that will give you the best light patterns for your experiment. If the area to be illuminated is translucent, you may require a white fiber. If the translucent area is opaque, you may require a black fiber.

Use Spotlights

A person sitting on a table

Another important factor to consider is whether or not you wish to use only spotlights to illuminate your work area. Spotlights are used to provide light in an area that normally would not receive it otherwise. For example, if your object of interest is lit from above, you will need more than just a spotlight to provide enough light. The spotlights often come with a hood or a hat that can be tilted to help diffuse the light.

Lateral illumination

Another type of general lighting is called lateral illumination. This type of lighting is typically provided through windows or doors. In this case, multiple fixtures are used to provide light on a particular area. These fixtures are typically mounted on a wall, which then projects the light onto the surface that they are aligned with. The main benefit of this type of illumination system is that you do not have to worry about stray light shining off the ceiling and potentially blinding your work space.

The type of illumination system that you may need depends on the characteristics of your work surfaces. You will likely want to use incident light to illuminate your work bench or other surfaces so that you can clearly see what you are doing. Incident light usually comes in the form of a bright light that shines onto the surface from above. You will probably also need indirect lighting in order to provide sufficient illumination for your surface. Indirect lighting is typically directed on the specimen that you are working on by pointing a light source at it.


When choosing the best lighting sources for your three-dimensional objects, it’s important that you keep in mind how the light will react with your specimen. Bright fluorescent lights or torches will reflect off of your specimen, potentially blinding it. Low-voltage lamps or torches may not work at all, as they tend to create a shadow and glare effect. A good rule of thumb is to choose the most indirect lighting that you can that won’t create a glare or shadow on your specimen.

A third option that you have is to have your light directly shine onto your dark field illumination platform. This is best done when you are inside of your laboratory, where it is possible to have a direct light beam shine directly onto the platform without losing your dark field exposure. The only real downside to this method is that it requires an extremely strong source of light in order to achieve this effect. You’ll likely want to use a fluorescent tube or bulb. Keep in mind however that even with a very powerful source of light, you still have to make sure that the intensity of the light that shines onto your platform mirror is just enough to illuminate your specimen.

Subscribe to our monthly Newsletter
Subscribe to our monthly Newsletter