April 2025 – Blue Laser Module Blog

Teaching Field Used 405nm Violet Laser Line Generator

When line projection work is processing for teaching fields, the short wavelength of 405nm made device of a violet laser line generator just assures quite nice violet laser light source emission and ultra clear violet reference line projection for a lot of experimental fields. It is made with ultra compact structure and high strength metal housing tube design, and getting constant electric power source supply. Based on the use of an external electric power source and proper installation or integration with desired experimental teaching device or equipment, it enables high precision, high stability and high straightness violet line indication effectively.

Being made with an import 405nm violet laser diode within 50mW to 100mW and high power range up to 150mW to 200mW, this 405nm violet laser line generator has just applied an external AC/DC adapter as its electric power source. It gets no limitation by manual labor force input, but also enables long time lasting violet laser line projection from beam aperture. The basic equipment of a metal heat sink cooling system is configured with a durable anodized aluminum alloy housing tube, thus violet line laser module obtains superior nice thermal emitting, increasing stability violet reference line projection within constant work time of more than 8 to 10 hours per day.

In various working environments, including wide range operating temperature, humidity and other harsh working environments etc, glass coated lens made 405nm violet laser line generator enables high linear quality and highly straight violet reference line projection. It is allowing freely selected fan angles of 10 to 110 degree. After its special use of adjustable focus optic lens design, it gets high density and highly powerful violet laser light source concentration, and converts into increasing brightness and fineness violet line projection in distance.

Applications of violet laser line generator in teaching field:

Physics teaching: In experimental teaching of optics, mechanics and other courses, highly clear violet laser line is used to demonstrate basic optical phenomena such as light propagation, reflection, and refraction, helping students to intuitively understand optical principles. In mechanical experiments such as rigid body rotation and vibration, it is used as a displacement or angle measurement mark to improve the accuracy and visualization of experimental measurements.

Engineering teaching: In the teaching of majors such as mechanical engineering and electrical engineering, violet line laser module is used to demonstrate the principles and applications of technologies such as laser processing and laser measurement. In automated control experiments, it is used as a light source for position sensors to help students understand the working principles of sensors and the design of control systems.

Experimental demonstration: In popular science activities or open laboratories, through simple experimental demonstrations, such as using violet line laser modules to conduct light interference and diffraction experiments, students’ interest in scientific research is stimulated and their observation and thinking abilities are cultivated.

Review of 405nm SM Violet Laser Diode

General introduction:

The 405nm single-mode violet laser diode is a semiconductor device that can emit violet laser light source with a wavelength of 405nm. It is based on the principle of the photoelectric effect of semiconductors. By injecting electric current into a specific semiconductor material, electrons and holes recombine and radiate photons, thereby generating lasers. Its single-mode characteristics ensure that the laser propagates in a specific mode and has unique optical properties.

Performance advantages:

Wavelength: short wavelength of 405nm is in the violet region of visible light and has a shorter wavelength. This makes it perform well in some applications that require high resolution, such as in Blu-ray disc reading, where a short wavelength can achieve a smaller spot size, thereby improving data storage density and reading accuracy.

High energy density: Due to the short wavelength, the photon energy of 405nm violet light is relatively high. This gives the 405nm single-mode laser diode an advantage in some applications that require high energy density, such as laser engraving, micromachining, etc., where materials can be processed and handled more efficiently.

Good monochromaticity: The characteristics of single-mode laser diodes make the violet lasers they emit have excellent monochromaticity, and the wavelength width is usually very narrow, generally within a few nanometers. This means that the violet laser light it emits has high color purity, and in applications that require specific wavelengths of light, such as fluorescence excitation, optical detection etc. It can provide accurate and stable violet laser light sources and reduce interference from other wavelengths of light.

High directivity: The beam emitted by the 405nm SM laser diode is highly directional, with a small divergence angle, usually within a few milliradians. This good directivity enables the violet laser beam to maintain high intensity and focus during long-distance transmission, which is conducive to improving the transmission efficiency of optical signals and the accuracy in various applications, such as laser indication, optical communication, etc.

Low threshold current: This type of 405nm SM violet laser diode usually has a lower threshold current, that is, laser emission can be achieved at a lower driving current. This not only reduces power consumption and improves energy efficiency, but also helps to extend the service life of the device and reduce operating costs. It is of great significance in some equipment and systems with strict requirements on power consumption.

Good stability: 405nm single mode laser diode has good power stability and wavelength stability. Within a certain range of working conditions, it can keep the output power and wavelength relatively constant, and is less affected by environmental factors (such as temperature, current fluctuations, etc.). This allows it to work reliably in a variety of complex working environments and is suitable for application scenarios that require high light source stability, such as scientific research, medical equipment, etc.

What is The General Use of 445nm Blue Parallel Line Laser Module?

In those of special working occasion of high precision parallel line alignment work in those of industrial and high tech work fields, it would be a quite efficient job to operate a 445nm blue parallel line laser module. It gets featured high precision optical components, including high quality 445nm blue laser diode, collimating lens and other optical componets. The laser diode generates a 445nm blue laser, and the collimating lens converts the divergent blue laser beam into a parallel beam so as to ensure the parallelism and stability of the light. These optical components are precisely processed and assembled to ensure that the module can output high-quality parallel light.

The overall structure of 445nm parallel line laser module is relatively compact and small in size, which is easy to integrate into various devices. Even though it applies an import 445nm blue laser diode within 50mW to 100mW output power, however, it still adopts reasonable internal layout, and the connection between each component is tight. It can achieve efficient optical functions in a limited space and meet the requirements of miniaturization of equipment in different application scenarios.

Based on the use of an inner metal heat sink cooling system inside a durable anodized aluminum alloy housing tube, the genuine use of a 445nm blue parallel line laser module gets good dissipation performance. Even though laser diode generates heat during continuous work, in order to ensure its performance and life, it has just achieved superior nice thermal emitting and ultra stable red reference line projection within long lasting measuring works. The heat dissipation structure can effectively dissipate the heat, maintain the normal operating temperature of the module, and ensure its stability and reliability.

After easy use of an AC/DC adapter, this ultra compact structure designed 445nm blue parallel line laser module is convenient for connection with external power supply and control system. It enables quite easy installation and debug, and can be quickly integrated into different equipment and system, improving its versatility and interchangeability.

Applications:

Laser display: as one of the three primary colors, 445nm blue laser light can be combined with red and green light so as to achieve high resolution, high color saturation color display. It is widely used in display devices such as laser TVs and projectors, and can provide a wider color gamut and clearer images.

Optical communication: In some high-speed optical communication systems, 445nm blue parallel line laser can be used as a light source for short-distance optical signal transmission. Its parallel line blue laser light are conducive to the efficient transmission of optical signals in media such as optical fibers, reducing signal attenuation and distortion.

Scientific research field: In scientific research fields, such as spectral analysis, quantum physics experiments, and photocatalysis, 445nm blue parallel line can be used as an excitation light source or a detection light source to excite the fluorescence of specific substances and study the interaction between light and matter. For example, in photocatalytic experiments, light of this 445nm wavelength can excite certain catalysts and promote chemical reactions.

Industrial inspection: Using its parallel light characteristics, high-precision dimensional measurement, surface flatness detection of objects, laser collimation and other industrial inspection tasks can be performed. For example, in automobile manufacturing, blue parallel line is used to detect the dimensional accuracy and surface flatness of body parts.

Medical field: In some medical equipment, such as a substitute for UV curing lamps, it is used to cure dental materials, phototherapy in dermatology, etc. 445nm blue parallel line laser light has a specific effect on certain photosensitive materials, which can achieve rapid curing of materials, and has better safety and controllability than traditional UV light sources.

Advantages:

High brightness and high energy density: The 445nm blue parallel line laser module can produce high-brightness blue laser light with high energy density. This makes it perform well in some applications that require high-energy light, such as laser processing, optical communication and other fields, and can achieve more efficient energy transmission and faster processing.

Good monochromaticity: The light emitted by this blue laser module has good monochromaticity and high wavelength stability. In the fields of scientific research, display, etc., it can ensure the color purity and accuracy of light, and avoid experimental errors or display color deviations caused by wavelength changes.

High parallelism: The output light beam has extremely high parallelism and can maintain a small divergence angle during long-distance transmission. This advantage gives it obvious advantages in applications such as laser collimation and long-distance optical communication, and can achieve high-precision positioning and signal transmission.

Strong stability: After careful design and optimization, the 445nm blue parallel line laser module can maintain stable performance during long-term operation. Its internal optical components and circuit systems have good anti-interference ability, can work normally under different environmental conditions, and reduce the frequency of maintenance and calibration.

Environmental protection and energy saving: Compared with some traditional light sources, such as mercury lamps, the 445nm blue parallel line laser module has higher photoelectric conversion efficiency, can generate enough light energy while consuming less electricity, and has better energy-saving effect. At the same time, it does not contain harmful substances such as mercury, which is more environmentally friendly.