What makes a good job for engineers and professionals to make clear and accurate dot indication for medical positioning assistance? It is not able to rely on any prior dot positioning work with a simple laser pointer or sticker, but making an even better job to apply a high energy density device of a 515nm green laser diode module. Basically it gets constant power source supply and special use of cooling system inside a different dimension metal housing tube. Whenever ultra compact size tube made 515nm green dot laser gets proper use of output power and equipped operating voltage, it enables easy reaching, noncontact and no track green reference dot projection onto different working surfaces constantly and conveniently.
The genuine dot generation work with a TTL modulation 515nm green laser diode module gets constant power source from a TTL high speed modulation power source. Employed by an import 515nm green laser diode within 5mW to 50mW, it supports high-speed pulsed, intermittent emission to prevent thermal burns to human tissue caused by continuous laser output. This 515nm green dot laser enables synchronized triggering with surgical instruments and cameras for on-demand illumination, enhancing safety. When it makes good use of a metal heat sink cooling system inside a high duration anodized aluminum alloy housing tube with different dimensions, it just achieves superior nice heat dissipation and increasing stability green light and green reference dot projection in long term use.
When TTL modulation 515nm green laser diode module gets special use of a qualified glass coated lens and adjustable focus optic lens design in front of the beam aperture, after its immediate green light source concentration, it is converting into an increasing accuracy and brightness green referenced dot at a greater distance and multiple ambient lighting occasions as well. The visible green light is clear, allowing surgeons to quickly identify positioning points with the naked eye; less irritating than short-wavelength blue light, making it ideal for close-range positioning on the body surface. Furthermore, when 515nm green dot laser gets special design of adjustable focus, it produces a tightly focused, small light spot for precise marking, significantly reducing the risk of deviation during puncture or minimally invasive procedures.
Whatever output power it is selected, TTL modulation laser diode module gets specially designed APC, ACC driving circuit board. It enables constant green light and green reference dot projection, unaffected by overheating and over current impact. When laser turns off during non-operational periods, it is reducing aging caused by prolonged illumination. The green alignment laser dot remains stable without drift during long term continuous use. When it makes quite easy integration with medical device, such as various diagnostic and therapeutic instruments, green reference dot can easily reaching any working surface, including positioning for minimally invasive surgical instruments, alignment for rehabilitation and physiotherapy equipment, calibration for medical imaging equipment, and positioning for laboratory biological testing etc.
Tag: green laser diode module
TTL Modulation 515nm Green Laser Diode Module in Industrial Precision Positioning
When precise dot positioning work is processing in industrial precision positioning fields, not limited by work distance, operating height and other harsh working environments, a lot of workers and engineers are beginning to select a highly bright light emitted tool of a TTL modulation 515nm green laser diode module. It applies the advanced import 515nm wavelength semiconductor laser diode and a qualified optic lens inside a high duration metal housing tube, configured with TTL high speed modulation, it supports pulse signal control, enabling timing synchronization with industrial controllers, cameras, and robotic arms; allows for fully automated activation/deactivation without manual intervention, making it ideal for unmanned assembly line operations.
Being made with a 515nm wavelength semiconductor laser diode within 5mW to 50mW and 100mW to 200mW output power, TTL modulation 515nm green laser diode module just projects excellent visibility green light in use. The human eye is far more sensitive to green light than red light. Thus the projected green laser dot remains distinct in environments with bright factory lighting or reflective metal surfaces, ensuring high visibility for long distance dot positioning work. When TTL modulated green laser gets special use of a metal heat sink cooling system inside a durable anodized aluminum alloy housing tube, being made with different tube diameter, it just gets superior nice heat dissipation, and increasing stability and brightness green light and green reference dot projection in long operating time use.
Cooperated with a qualified glass coated lens and low laser beam divergence, TTL modulation 515nm green laser diode module always keeps work with high positioning accuracy with dot shaped beam. It produces a tightly focused, small spot with minimal reference error, meets requirements for precision positioning of small components and micron-level initial alignment, reducing errors associated with manual marking. The green laser activates only during the positioning phase and turns off during idle periods, reducing optical degradation and heat-related wear caused by prolonged continuous operation.
In various industrial precise dot positioning fields, TTL modulation laser diode module features a compact size, suitable for embedded installation. Its TTL-level interface is compatible with mainstream PLCs, microcontrollers, and vision controllers, allowing for easy retrofitting on both new and existing equipment. The 515nm green alignment laser beam remains stable during prolonged industrial operation, with minimal thermal drift, ensuring consistent positioning accuracy for long-term batch processing. After its correct selection of output power, highly precise green laser dot is applicable for CNC machine tool setting and positioning, cutting stable and sheet metal processing, welding and fixture alignment, and machine vision reference calibration etc.
Reference Dot of 515nm Green Laser Diode Module in Interference Experiments
Whenever users are trying to make ultra clear and precise dot indication for special work field of interference experiments, not able to rely on a simple green laser pointer or other manual dot projecting tool, it would be a much better solution for engineers or professionals to apply a highly bright light emitted tool of a 515nm green laser diode module. It applies the advanced 515nm green laser diode and a qualified optic lens inside a high duration metal housing tube, equipped with constant electric power source supply. On condition that direct diode emission made 515nm green dot laser alignment gets proper installation or integration into any optical experiment used machine or device, it achieves easy reaching, no physical contact and no mistake dot indication for all precise positioning works.
Green light emitted from a 515nm green laser diode module gets high visual sensitivity to the human eye, which is also intuitive and efficient adjustment. The 515nm wavelength falls within the peak range of the human eye’s luminosity function. Compared to red light, the green reference dot is more easily discernible under standard laboratory lighting, allowing for rapid visual assessment of center-point alignment without the need for additional instruments. Usually green dot laser alignment gets proper use of a metal heat sink cooling system inside a durable anodized aluminum alloy housing tube, available with different dimension of 16mm, 18.9mm and 26mm diameter design, it achieves superior nice heat dissipation and increasing stability green light and green reference dot projection in long term use, without light decay or blur under temperature fluctuation or other harsh workshop environment as well.
This glass coated lens 515nm green laser diode module keeps work with high beam stability with minimal refence positioning error. The green laser dot is highly circular with concentrated energy and minimal stray light, featuring a single, distinct central point, it significantly reduces coaxial alignment errors and directly enhances the clarity and contrast of interference fringes. When it projects highly precise and clear green reference dot at a long extending distance, green dot laser alignment is also resistant to thermal drift during long-term operation, maintains superior reference stability. As a semiconductor laser directly emitting green light at 515nm, it lacks the frequency-doubling crystal structure found in 532nm lasers. Consequently, heat generated during prolonged operation causes no wavelength or beam spot drift, ensuring the reference point remains stable during extended data acquisition in interference experiments.
Visible green light emitted from a 515nm green laser diode module does not interfere with signal acquisition, which avoids signal crosstalk with infrared coherent sources or the detection bands of photoelectric sensors, ensuring the integrity of raw interference data. Sometimes it is designed with TTL modulation power supply, it is also suitable for dynamic experiments, enables rapid switching and pulsed output of the laser spot. When paired with high-speed cameras to capture transient interference patterns, green alignment laser meets the requirements for observing instantaneous interference phenomena such as those caused by shock or vibration. It also provides professionals excellent green light source from initial reference positioning for interference system, locking the center point of interference fringes, coaxial alignment of coherent beams, optical path restoration after disassembly/reassembly etc.
Continuously Operated 515nm Green Laser Diode Module in Machining Field Use
In order to make ultra clear, precise and bright dot indication for all machining processing works, either it is pointing at close or long distance, it would be a quite efficient job to apply a highly bright light emitted tool of a 515nm green laser diode module. It keeps work with intense and powerful forest green laser light emission directly from an import 515nm green laser diode, equipped with basic thermal emitting system inside a highly durable metal housing tube. Configured with an external electric power source supply, when green dot laser alignment gets proper installation or integration onto required machine or equipment, it brings users easy reaching, long operating time lasted and good direction green reference dot projection onto multiple working surfaces conveniently.
Basically 515nm green laser diode module gets constant power source from an AC/DC adapter, owing to the acceptation of 100V to 240V operating voltage, it is applicable for various working environments and regions, merely affected by harsh working occasions as well. Employed by an import 515nm green laser diode within 5mW to 100mW and higher power up to 150mW to 200mW, and basic use of a metal heat sink cooling system inside a durable anodized aluminum alloy housing tube with different dimension, this green dot laser alignment always gets sufficient space leaving for tube heat dissipation, and achieves ultra stable and reliable green light and green reference dot projection as long as 24 hours per day. There is also no light decay or blur in continuous use.
Usually 515nm green light is close to the most sensitive wavelength of the human eye, several times brighter than red light, 515nm green laser diode module is allowing clear visibility even in bright workshop lighting and with high metal reflectivity. Featured by high positioning accuracy, small spot size, and a small divergence angle in the dot-shaped laser, it is preventing light diffusion over long distances, making it suitable for long-distance alignment and high-precision positioning. Besides the adoption of a qualified glass coated lens, this green dot laser alignment also gets special use of adjustable focus optic lens in front of beam aperture. Once highly powerful and intense green light is concentrated from beam aperture, it is converting into an increasing accuracy and brightness green reference dot generation at greater distance and multiple higher lighting workshops.
Usually 515nm semiconductor green laser diode module generates little heat and can be continuous lit for 24 hours, which is suitable for long-term online machine tool use. Featured by shock resistant and oil resistant, it is always suitable for harsh workshop environments, without a fragile crystal structure. It is more durable than traditional 532nm green lasers and less prone to damage from machine tool vibrations. Typically this 515nm green dot laser alignment adopts DC power supply with 5V, 9V or 12V, supports TTL modulation, can be directly connected to the machine tool control system for linkage switching. It always provides a high precision, high visibility an d high duration used in machining, specifically designed to quickly and accurately mark the center point of drilling, welding, cutting, and tool setting.
Applications of 532nm Green Laser Diode Module in Dot Positioning with The Construction Industry
Whenever advanced 532nm green DPSS laser tech is applied for a practically used dot measuring tool, it is created into a professional dot aligning tool of green laser diode module. It always gets constant power source supply and proper equipment with construction industry field used machine or device. It projects 532nm green laser light with high human eye sensitivity, visible from a distance far exceeding red light in daylight and sunlight. This green dot laser alignment is suitable for building construction layout, steel structure installation, curtain wall dry hanging, and decoration benchmark positioning.
Available with wide range output power of 5mW to 200mW and basic use of a metal heat sink cooling system inside a durable anodized aluminum alloy housing tube, this 532nm green laser diode module is offering strong visibility under strong outdoor light, precise positioning, and good environmental adaptability, significantly improving construction accuracy and efficiency. It is an ideal indicator light source for efficient positioning in modern construction engineering. For the most important of all, owing to its low laser beam divergence and special TEM00 laser beam mode, 532nm green dot laser alignment always keeps work with the most compact size and the brightest green reference dot projection at various work distances conveniently.
Based on the adoption of a qualified glass coated lens and adjustable focus optic lens in front of beam aperture, this 532nm green laser diode module not only gets highly powerful and concentrated green laser light emission at several miles far away, but also enables easy converts into a small, concentrated, and non diffuse light spot, maintains a small dot even at long distances, meeting building axis and benchmark positioning requirements. When green dot laser alignment is applied for various building surfaces, green reference dot is clearly visible on concrete, stone, steel, tiles, dark walls, and glass, without being obscured by the background color.
Under multiple construction works, 532nm green laser diode module projects noncontact, non damaging, and non contaminating dot indication, does not affect subsequent construction. It allows freely equipped DC power supply or TTL modulation power supply, which enables long term lasted green dot generation over long term use. After quite simple installation or integration with construction machine or device, it significantly improves construction efficiency, eliminating the need for manual stringing, plumb bobs, and repeated checks. A single person can quickly locate the target, saving labor and time.
Applications in construction fields:
Marking Center Points for Walls, Beams, Columns, and Door/Window Openings during Construction: 532nm green laser diode module replaces traditional chalk lines and markers for higher accuracy.
Positioning for Steel Structures: Locates and positions steel columns, beams, and embedded parts, ensuring precise welding and bolt installation.
Positioning for Curtain Walls/Dry-Hanging Stone: Indicates the hole positions of hanging components and the center points of keel installation, improving verticality and flatness.
Positioning for Interior Decoration: 532nm green alignment laser provides benchmark positioning for ceilings, tile laying, partition installation, and switch/socket positioning, unifying benchmarks and reducing errors.
Long-Distance Indication of Control Points, Axis Endpoints, and Elevation Control Points for Foundation Pit and Surveying Layout.
Bridge/Tunnel Construction: Positioning of formwork, reinforcement arrangement, and alignment of lining pouring center points.
Aluminum Alloy/Door/Window Installation: Provides rapid indication of window frame center lines, horizontal points, and vertical points.
Scientific Research Work of Glass Coated Lens 532nm Green Laser Diode Module
When 515nm wavelength laser diode is applied for the creation of a green laser diode module, it is always projecting the most sensitive green light to the naked eyes, with brightness far exceeding that of red and blue light at the same power. It applies an import 515nm green laser diode and a qualified optic lens inside a durable housing tube, which is also equipped with thermal emitting system. When green dot laser alignment gets constant electric power supply and proper installation or integration into scientific experimental device or equipment, it enables easy reaching, noncontact and highly precise green dot projection. It also remains clearly visible in both low-light and high-light experimental environments, facilitating experimental observation and real-time calibration, and reducing visual errors.
Being made with a qualified glass coated lens and glass window design in front of laser beam aperture, not affected by moisture, dust, rain, water or fog, this 515nm green laser diode module is keeping work with high transmittance and high photoelectric ability forest green light emission at long extending distance. When it gets highly powerful green light concentrated, it can convert into increasing accuracy and good round shape green dot projection in distance easily. It keeps work with stable energy output without drift, fully meeting the core requirements of scientific research experiments for ultra-precise positioning and light source stability, ensuring accurate experimental data. When 515nm green dot laser alignment gets low laser beam divergence, cooperated with adjustable focus optic lens, it is adopted to experimental needs of different precision and scenarios, featured by good light concentration, allowing for switching of working modes as needed, adapting to various experimental schemes.
Usually 515nm green laser diode module gets quite small size tube diameter, which is designed with 16mm, 18.9mm and 26mm diameter for different output power range of 50mW to 200mW. Within the lowest power consumption and low heat generation, it is allowing for flexible integration into various scientific instruments and experimental platforms. It is compatible with different brands of detection and observation equipment, and modification and debugging are convenient without interfering with the overall operation of the experimental device. Owing to its pure light output, 515nm green dot laser alignment causes no additional damage to experimental samples, and will not interfere with the acquisition of other experimental data such as spectral analysis and electrical signal acquisition, ensuring the purity and traceability of experimental results.
Applications in scientific research fields:
Core Applications in Optical Experiments: As a visible light reference source, 515nm green laser diode module is used for optical path calibration, performance testing of optical components, and is suitable for basic optical experiments such as laser transmission, interference, and diffraction. It can also assist in building optical measurement systems.
Physics Research Scenarios: In mechanics experiments, it serves as a reference point for calibrating object displacement and marking motion trajectories; in thermal and electrical experiments, it assists in precise equipment alignment; and it is a core excitation and detection auxiliary light source for quantum physics and optical sensing experiments.
Materials Science Research: It serves as a precise positioning point for material microstructure analysis and surface property testing. It assists electron microscopes, spectrometers, and other equipment in focusing the area to be tested; and it marks monitoring points in material modification and weather resistance testing to achieve long-term tracking observation.
Biology and Life Sciences: 515nm green alignment laser serves as a positioning marker for biological sample observation. It tracks points during microbial culture, which is suitable for microscopic observation and sample sampling positioning, with low power and no damage.
Good Beam Quality 532nm Green Laser Diode Module For Industrial Marking Work
Whenever the advanced 532nm green DPSS laser tech and a qualified glass coated lens are configured with a highly durable metal housing tube, it is manufactured into a professional dot measuring tool of a 532nm green laser diode module. It projects highly bright and visible green laser light from a middle wavelength of 532nm green DPSS laser system, owing to its low laser beam divergence and special TEM00 laser beam mode, either it is used for close or long distance, green dot laser alignment maintains ultra compact size and highly bright green reference dot projection. High density green laser light is converted into increasing accuracy and brightness green reference dot, which fulfills high stability, high accuracy dot generation for all precise machinery processing works constantly.
Being made with an AC/DC adapter, not spending extra time on battery change, 532nm green laser diode module enables long term lasted green dot projection, unaffected by increasing temperature and serious electric current impact as well. When it applies a qualified glass coated lens and adjustable focus optic lens in front of laser beam aperture, equipped with an inner metal heat sink cooling system inside a durable anodized aluminum alloy housing tube, green dot laser alignment enables long term continuous green dot projection, resulting in minimal power drift and a low failure rate over long-term use. Combined with APC, ACC driving circuit board, whatever output power it is selected, it keeps work with high beam stability and long serving lifetime for all precise dot positioning works.
According to the adoption of 16mm, 18.9mm and 26mm diameter metal housing tube design, together with electric wires extension for both of 532nm green laser diode module and DC power supply, it allows for easy integration into CNC engraving machines, fully automated marking production lines, and other equipment. Highly bright green laser light forms high contrast marking on materials, such as red and orange plastics, facilitating subsequent quality inspection and traceability. Compared to infrared lasers of the same power, green alignment laser light has stronger visibility, requiring no additional auxiliary equipment during debugging, and operation safety can be ensured by using safety goggles.
General applications in medical treatment field:
Non-metallic Material Marking: 532nm green laser diode module is suitable for white, transparent, flexible plastic parts in the medical field, such as infusion set interfaces and medical catheters; also suitable for plastic casings of 3C products, acrylic decorative parts, and logo marking on wooden crafts and leather bags.
Metallic Material Marking: For highly reflective precious metals such as gold and silver, it can accurately mark item serial numbers and purity indicators; it can also be used for parameter marking on metal parts such as automotive parts and industrial bearings, avoiding reflection affecting the marking effect.
Special Material Marking: green dot laser alignment is suitable for glass products, such as production dates on mobile phone screens and automotive glass, and parameter marking on optical lenses; it is also suitable for fine marking of electronic components such as integrated circuit chips and PCB boards, and can also be used for traceability marking of fragile foods such as eggs.
How Can 515nm Green Laser Diode Module Work in Industrial Positioning
When laser tech engineer develop a quite practically used dot positioning tool, such as a 515nm green laser diode module, it is not simple projecting highly visible and bright forest green laser beam at several miles far away, but also assuring ultra clear and precise green dot projection for both of long term and long distance dot positioning works. Basically it gets special use of heat dissipation design inside a different dimension tube, not limited by long distance, high height and other complex working environments etc, this green dot laser alignment enables high sensitivity green light emission, ultra clear and precise green dot projection onto multiple industrial raw material surface processing works conveniently.
Basically 515nm green laser diode module emits high sensitivity green laser light from a near middle wavelength of 515nm, thus it is able to make ultra clear and precise green dot projection onto those of industrial raw material surfaces, such as metal or plastic. When it adopts an inner metal heat sink cooling system design inside a durable anodized aluminum alloy housing tube, green dot laser alignment gets perfect performance under wide range operating temperature, different humidity and any other harsh working environments as well. As a result, when it makes constant green reference dot projection within 10 hours per day, it still gets no effect by overheating, and makes no blurring green laser light generation continuously.
Every time 515nm green laser diode module gets proper connects with 5V, 9V 1000mA AC/DC adapter, not any longer relying on manual labor force input, it enables long term lasted green laser light source generation, and converts into increasing accuracy and brightness green dot projection as long as 26 meters. Cooperated with adjustable focus optic lens design, the focused green laser dot diameter can be controlled within 0.1 to 1mm, and low laser beam divergence angle of ≤0.3mrad. A correct output power made green dot laser alignment meets the precision industrial alignment requirements. When it is working within wide range operating temperature and any other possible harsh working environments, it still makes ultra clear and precise green dot indication.
General applications in industrial processing works:
3C Electronics: Mobile phone/computer component placement and positioning, PCB board soldering alignment, screen assembly reference marking;
Automotive Manufacturing: Automotive component (lights, wiring harness) assembly positioning, body welding seam guidance, stamping part precision calibration;
Machining: Green alignment laser dot is applied for machine tool cutting reference positioning, mold closing alignment, precision component drilling/milling point marking;
Automated Conveying: Assembly line workpiece positioning and sorting, AGV cart path reference guidance, warehouse goods stacking alignment.
High Visual Recognition Glass Coated Lens 515nm Green Laser Diode Module
What is an efficient job for users to make ultra clear and precise dot indication at different work distance and lighting occasions? It is emitting similar green laser beam and green reference dot as a green laser pointer, however, when it gets better thermal emitting design and constant electric power source supply, it is manufactured into a more practically used device of a 515nm green laser diode module. It is equipped with an inner thermal emitting system and external electric power source supply. Being made with ultra compact size and highly durable metal housing tube design, only after its proper installation or integration with any other required machine or device, this green dot laser alignment tool makes sure of highly bright green laser beam emission, ultra precise and clear violet reference dot projection for multiple working distances and lighting occasions as well.
Compared to formal alkaline battery power source supported laser pointer, the genuine use of a 515nm green laser diode module adopts an AC/DC adapter as its electric power source. It applies an import 515nm green laser diode within 50mW to 100mW and high power up to 150mW to 200mW, even though it gets high thermal consumption, however, it should only be equipped with different operating voltage of 5V, 9V or 12V 1000mA DC power supply. Whatever output power it is selected, not limited by long distance or high height, this accessory part of a green dot laser alignment maintains ultra intense and bright forest green laser beam emission at several miles far away, and enables ultra clear and precise green reference dot projection as long as 25 meters and other ambient lighting occasions as well.
The generated forest green laser light from a 515nm green laser diode module is near the peak of the human eye’s visible light sensitivity. At the same power, its brightness is much higher than red light (such as 650nm), making it clearly visible even in strong sunlight or at long distances. When it gets low laser beam divergence and special use of adjustable focus optic lens, after its immediate forest green laser light projection from beam aperture, this 515nm green dot laser alignment makes efficient conversion of increasing accuracy and brightness green reference dot projection at a longer distance. Owing to its good focused green laser light emission, within a minimum spot diameter down to micrometers, it is meeting the alignment requirements of precise scenes. Compared with any other visible red lasers, once it is pointing under outside or other high lighting working environments etc, it gets enhanced interference immunity in outdoor and high-brightness environments, eliminating the need for dark backgrounds for identification.
Applications:
Industrial Manufacturing: Tool alignment in machining, circuit board soldering positioning, and precision calibration of automated equipment.
Medical: 515nm green laser diode module is making clear green dot positioning dental restorations in dentistry, assisted aiming for ophthalmic examinations (must comply with medical-grade safety standards).
Measurement and Inspection: Alignment laser line projectors (dot reference), target indication for distance measurement equipment, and laboratory sample positioning.
Consumer Electronics/Security: Laser pointers (low power), assisted aiming for security cameras, and spatial positioning markers for AR/VR devices.
Mechanical Processing Works with DC Power 520nm Green Laser Diode Module
What is an easy job for engineers or professionals to make clear and precise enough dot indication? It might be processing at different work distances and multiple lighting occasions, as a results, a lot of users would prefer to operate a highly intense beam emitted tool of a 520nm green laser diode module. It keeps work with intense and powerful forest green laser beam directly from an import 520nm green laser diode. Usually it applies a qualified optic lens and thermal emitting system inside a highly durable housing tube. Not limited by professional skills, operating distance or other complex working environments etc, this direct diode emission made 520nm green dot laser ensures easy reaching, noncontact and high precision green reference dot projection onto various working surfaces conveniently.
In practical machinery processing works, this 520nm green laser diode module is always required to make long term lasted dot positioning works. The genuine use of an import laser diode enables at least 40% laser beam stability, and the output power fluctuation is less than ±5% (operating temperature -10°C to 60°C), preventing beam spot dimming or deformation due to power attenuation and ensuring consistent positioning marks during long-term continuous processing. Besides the use of a metal heat sink cooling system, this green dot laser alignment also gets special use of APC, ACC intelligent feedback control electric driving circuit design. Whatever output power it is selected, it still maintains ultra long time lasted green dot projection and long serving lifetime for all precise dot positioning works.
Being made with durable anodized aluminum alloy housing tube design, this 520nm green laser diode module can be adapted to different workshop environments. It is designed to withstand vibration and dust, the module can withstand machine tool vibration and dust pollution during operation, reducing module downtime. In practical precise dot measuring work, only after correct use of output power and operating voltage electric power source, this ultra compact structure made 520nm green dot laser enables quite easy installation or integration, quick reaching and good direction green reference dot projection onto any vertical or horizontal surface immediately.
In machining processing work, 520nm green laser diode module is primarily used to provide precise visual positioning references, such as “starting point marking” for cutting metal/non-metallic sheet metal, “workpiece alignment reference points” for milling, “hole position pre-marking” before drilling, and “multi-process coaxial calibration marking” for large part machining. It gets reduced relying on manual labor force input, and no limitation caused by long distance, high height and other complex working environments etc. When green alignment laser is operating with high power up to 50mW, it is a necessity to take active laser safety measures and wear proper 520nm wavelength preventing laser safety glasses so as to achieve easy, free and secured dot measurement constantly.