Hai'an Huihong optoelectronics specializing in the production of a variety of filters, filter, coating color filter, narrowband filter, through the filter, infrared filter, IR filter, long wave pass filter and short wave pass filter, neutral density filters, narrow-band IR filter, light, mirror and other optical instruments. Sink rainbow production filter can only make need light through the filter, usually made of colored glass, filter contains color temperature and filter. Filter is also called the color temperature of the filter, mounted between optical system lens and a dichroic prism (three CCD cameras), and in terms of a single CCD machine, then put between the lens and a single CCD. It is the effect of the same object have the same color in different lighting conditions of color picture. Color filter is a kind of filter, its main function is to make the correct color deviation, color reduction to normal. Filter is used to change the intensity of the incident light, color is used for color correction, it can 3200K different light source color temperature conversion requirements for the camera, the captured image true color, avoid color deviation.

Color video camera is usually the more pieces of different color filter insert on a disk, camera can be according to the color temperature of light source and the light intensity of toggle disk, in order to obtain the suitable range. Home video camera is usually not equipped with filters, mainly through the circuit to adapt to different light sources.

Color is the accessory microscope, reasonable selection can improve the imaging quality. The filter has the following main functions:

1 with achromatic lens using yellow green color, can make the maximum aberration correction.

2. The apochromatic objective, the blue color, because the wavelength of blue than the yellow green short, so it can improve the lens resolution.

3 weaken the intensity of the light source. New type of microscope in addition to commonly used yellow green color filter and one or a few gray neutral density filters, used to weaken the intensity of incident light and does not change the other characteristics of incident light. This kind of filter best using Inconel alloy in glass forming vapor deposition membrane, according to the demand made with different light through rate of the filter, the transmission rate can reached 80% to 0.001% range.