Author of the non-fiction “Guardians of the Right Stuff,” a true story of the Apollo program as told by NASA and Grumman Corp. engineers, an astronaut, and technicians.

The meniscus lens is a type of lens with one convex and one concave surface. This unique design helps to minimize spherical aberration, making it ideal for applications that require high precision. Meniscus lenses are commonly used in laser systems for beam shaping and focusing.

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3. In this Gaussian beam distribution, the “waist” of the beam is the location in which the irradiance is 1/e2—13.5% of its maximum value. (Image from Reference 7)

In conclusion, lens used in laser systems play a critical role in shaping and focusing the laser beam. Different types of lenses are available to suit various applications, from cutting and engraving to medical procedures. By choosing the right lens for the job, laser system operators can achieve accurate and efficient results. Hansscanner's range of lens used in laser systems are built to deliver exceptional performance and reliability, making us a top choice for professionals in the industry.

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4. Lasers can accelerate some chemical reactions: Chemists typically can’t mix their reactants together until the very instant they’re ready for the reaction to proceed. A low-cost laser can be used to trigger and accelerate a chemical reaction for printing, or even to regulate drug delivery within the human body.

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Experienced Editor-In-Chief of EETimes/Planet Analog and Senior Technical Editor at EDN running the Analog and Power Management Design Centers from 2012 to 2019.

In addition to the types of lenses mentioned above, there are also specialized lens used in laser systems, such as cylindrical lenses and achromatic lenses. Cylindrical lenses are used to correct astigmatism in the laser beam, while achromatic lenses are designed to reduce chromatic aberration.

When choosing a lens for a laser system, it is important to consider factors such as focal length, material, and coating. Different lenses are suitable for different applications, so it is crucial to select the right lens for the desired outcome. Hansscanner, a leading manufacturer of optical components, offers a wide range of lenses used in laser systems. Our high-quality lenses are designed to meet the specific requirements of laser applications, ensuring optimal performance and precision.

By processing a LiDAR point cloud to bare-earth digital elevation models (DEMs), vegetation can be stripped away to reveal past landslides and steep slopes, at risk of failure, masked by forested canopies (Fig. 1). In dense forests, landslides—especially old landslides—might be invisible on aerial images; they are hard to detect from the ground.

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Aspheric lenses are specially designed to reduce spherical aberration and improve image quality. These lenses have a complex surface profile that allows for precise control of the laser beam. Aspheric lenses are often used in laser systems that require high levels of accuracy and efficiency. They are ideal for applications such as laser cutting and medical procedures.

2. Automotive laser-beam fusion welding joins components at high welding speeds with low thermal distortion. The laser beam is a concentrated heat source, focused on the cavity between any two metal pieces to be joined. This process is often employed in the automotive industry in high-volume applications.

Laser beams are termed Gaussian when they have an irradiance profile that’s following an ideal Gaussian distribution (Fig. 3).

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3. Holography is made possible via a laser source in which a coherence length, greater than 1 m, is sufficient to write holograms. A beam of coherent light (from the laser) is split—half of the beam will fall on a recording medium (like a photographic plate) unaltered, and the other half first gets reflected off the object to be imaged. Together, these two beams will produce an interference pattern of stripes and spirals/concentric circles or “whorls” on the photographic plate. The developed plate is the hologram.

Strong media and communication professional with a BEEE from NYU Engineering in 1972 and an MSEE from Polytechnic University in 1989. Senior Lifetime member of IEEE. Former IEEE Long Island, NY Director of Educational Activities. Eta Kappa Nu EE honor society member since 1970.

1. Study on the Osteogenic Differentiation of human umbilical cord mesenchymal stem cells (hUCMSCs) in Silk Fibroin/Polycaprolactone Membrane Under the Intervention of Photobiomodulation, IEEE Journal of Selected Topics in Quantum Electronics, Vol. 29, No. 4, July/August 2022.

PBM, an external stimulus in this application, accelerates the production of biological factors, reduces inflammation, and enhances tissue healing and repair. It also has been found to promote efficient functioning in such areas such as diabetes, brain injury, spinal-cord injury, skin disease, dentistry, and more.

A lens is said to be object space telecentric when the entrance pupil is located at infinity in image space (everything behind the objective), as shown in ...

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Laser power density can be determined by the laser power divided by its cross-section area or beam size. Power density is the power per unit area, aka irradiance, and is typically expressed in terms of W/cm2. Today, there are myriad applications that take advantage of the benefits of laser technology.

The plano-convex lens is a simple and commonly used lens in laser systems. It has a flat surface on one side and a convex surface on the other. This type of lens is used to focus the laser beam to a specific point. The curved surface of the lens helps to converge the laser light, allowing for precise focusing. Plano-convex lenses are often used in cutting and engraving applications.

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1.Shown is a LiDAR point cloud (left) and bare-earth DEMs (right). The vegetation is stripped away to reveal past landslides and steep slopes. (Image from Reference 2)

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LiDAR point clouds2 are typically described by their unique technology of dynamic information storage. See the U.S. Geological Survey (USGS) point cloud references here.

1. Photobiomodulation (PBM) can produce photochemical effects via modulating living cells. This method is used for incoherent (light-emitting diode) or coherent (laser) light with wavelengths that range from 405 to 1,100 nm.

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2. This image demonstrates the function and capability of Texas Instruments’ DLP development kits. (Image from Reference 3)

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To compute laser power density (power/unit area or irradiance), we will need a value for the diameter of the beam coupled with the value of the fraction of total power transmitted within that diameter. Average power and power density can be easily calculated here or here.

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8. Medical: Companies such as Modulight have provided lasers in medical applications, such as cancer treatment, with genetics/drug discovery/diagnostics as well as for ophthalmology.

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LiDAR (light detection and ranging) can measure the distance of an object (measuring the time for the reflected light beam to return to the receiver) using pulsed lasers. It also can create a 3D image of an object.

1972 to 1988 worked as a circuit design engineer in audio (8 years) and microwave (8 years). Then was Corporate Account Manager/applications engineer for Burr-Brown from 1988 to 2000 when TI purchased Burr-Brown. Worked for TI from 2000 to 2011.

Laser technology has revolutionized many industries, from healthcare to manufacturing. One of the key components in a laser system is the lens. Lenses used in laser systems play a crucial role in focusing and directing the laser beam. In this article, we will discuss the types of lens used in laser systems.

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7. Security and defense: Laser technology is being applied in perimeter security, target designation, and monitoring of toxic gases. The military also uses lasers in directed energy weapons.

The double-convex lens is another popular choice for laser systems. As the name suggests, this lens has two convex surfaces. This type of lens is often used in beam expanders, which are used to increase the diameter of the laser beam. Double-convex lenses are also used in collimating and focusing applications.

In bone injuries, PBM reduces inflammation, will improve the biological effect of osteoblasts, promote bone regeneration, and accelerate the healing of bones. This method has a non-traumatic advantage.

6. Garment manufacturing industry: The garment industry uses lasers for cutting garment patterns, 3D body scanning, fading for denim, and leather engraving.

5. Distance calculation: Just like sonar, a laser beam can be employed in surveying and ranging/distance calculation with no need for physical contact. Laser measuring tools function by transmitting a light beam to the target, which will then reflect off the surface and reflect back to the sending device. Lasers can measure distance with a great deal of accuracy.

... collimating lenses are available to produce different beam sizes with the same light source. Key Features: Interchangeable Aspherical Collimating Lens; High ...

A demonstrated history in electronic circuit design and applications for 40 years, and nine years of technical writing and editing in industry. Skilled in Analog Electronics, Space-related Electronics, Audio, RF & Communications, Power Management, Electrical Engineering, and Integrated Circuits (IC).

Texas Instruments (TI) probably has the widest array of laser-scanning solutions. One unique solution that stands out in its laser product line is digital light processing (DLP) technology in the form of digital micromirror devices (DMDs). Designers can construct their point cloud, which will be able to accelerate their machine-vision (MV) solutions with help of TI’s DLP software development kits (SDKs) (Fig. 2).