When 685nm wavelength laser diode is applied for the creation of a red laser diode module, owing to its laser beam range among visible red laser devices, it is projecting highly bright, visible and easily observing red laser light source to human eyes. It is making great job to help engineers and factory workers make clear dot indication and markings. After its easy connects with an AC/DC adapter and basic equipment with cooling system inside its durable housing tube, within the lowest power consumption, it always enables long time lasting, high stability and good direction red reference dot projection onto multiple working surfaces continuously.

In some specific media, such as smoke, dust and other environments, compared with lasers of other wavelengths, 685nm red laser diode module gets even better penetration ability. It gets special use of a glass window in front of laser beam aperture, cooperating with a glass coated lens inside a durable housing tube, it is keeping work with high transmittance and high density red laser light emission at long extending distance. In addition, even though it is pointing under high lighting, it still maintains a certain visibility and working performance as expected.
Featured advantages:
685nm red laser has a single wavelength of 685nm with a narrow spectrum width, and high color purity of the light. This good monochromaticity laser device has important applications in optical experiments, spectral analysis and other fields that require high monochromaticity of light.
Strong coherence: The phase relationship of light waves is stable, which can produce obvious interference and diffraction phenomena. 680nm red laser diode module is often used in technologies that require the coherence characteristics of light, such as laser interferometry and holographic imaging.
Good modulation. The use of 680nm red laser enables easily modulated laser beam intensity, frequency and other parameters, which can meet the needs of signal transmission, optical communication and other requirements in different application scenarios.
Application
Scientific research: used in optical experiments, spectral analysis, laser interference and other fields.
Commercial field: In the identification of counterfeit goods, its high resolution and unique optical properties of 685nm red laser module are used to accurately identify the anti-counterfeiting logo of the goods.
Communication field: 685nm red laser beam plays a certain role in optical fiber communication and optical fiber transmission, and can achieve high-speed and high-bandwidth data transmission.
Other fields: it is used for precise engraving or marking in the production of handicrafts; in indoor and outdoor decoration, it can create a unique light and shadow atmosphere; it can also be applied to flashlight products to achieve long-distance lighting or signal indication.