Optical products refer to various devices and equipment designed and manufactured based on optical principles. Here are some common optical products:

1. Laser: A laser is a device that can generate monochromatic, coherent, and high brightness beams, widely used in fields such as laser cutting, laser printing, laser measurement, and medical devices.

2. Fiber optic and fiber optic devices: Fiber optic is a slender optical waveguide device that can transmit optical signals, commonly used in fields such as communication, fiber optic sensing, and medical equipment. Fiber optic devices include fiber amplifiers, fiber splitters, fiber couplers, etc.

3. Optical lens: Optical lens is a device used to collect, focus, or disperse light, commonly including convex lens, concave lens, prism, etc. They are used for optical equipment such as cameras, microscopes, and telescopes.

4. Optical filter: Optical filter is a device that can selectively pass through or block specific wavelengths of light, commonly used in spectral analysis, optical instruments, and photography.

5. Optical coating: An optical coating is a thin film commonly used to reduce reflection, increase transmittance, and improve color. They are commonly used in lenses, mirrors, optical devices, etc.

6. Optical instruments: Optical instruments include microscopes, telescopes, spectrometers, interferometers, etc., used for observing, measuring, and analyzing optical phenomena and signals.

7. Optical components: Optical components refer to various devices used to control, adjust, and measure light, such as polarizers, gratings, diffraction gratings, etc.

The above are just some common optical products, as well as many other optical devices and equipment, such as optical microscopes, optical light sources, photodetectors, etc. The widespread application of optical technology has made optical products play an important role in scientific research, communication, medical treatment, industrial manufacturing, and other fields.