Have you ever wondered how does your phone’s Face ID accurately recognizes your face, how does a robot vacuum nimbly avoids table and chair legs, how does a factory precisely detect tiny defects in parts? Behind all these applications lies a key device: the speckle laser projector. The seemingly chaotic random light spots it produces are actually “optical […]
Author Archives: frank@besram.com
The interference and diffraction of light are core experiments in university physics optics, and the choice of equipment directly affects the experimental results and the achievement of teaching objectives. This article combines teaching requirements, experimental principles, and practical scenarios to analyze the logic and precautions of equipment selection from three aspects: light source, optical components, […]
Some special type of Laserland laser line module. Not every type of laser line module is suitable for laser swamp building. We make some special type of laser line modules based on the practices of haunted house owners in the United States and all accross the world and years of experience of laser swamp building. […]
A laser harp is a harp without strings, replaced by bright laser beams. This is a new type of musical instrument that combines laser technology and traditional musical instrument principles, with unique musical expression and innovation. The principle of laser harp: The harp is equipped with multiple lasers on the top and corresponding photoelectric sensors […]
Laser projection technology is an important development direction of current projection equipment technology and is receiving increasing attention and being widely used. Laser projection technology has the advantages of high brightness, bright colors, and color stability, and has been widely used in many fields. Education field: The advantages of laser projection technology’s high brightness, […]
Horizontal line laser refers to a laser that emits a straight horizontal line. The principle is based on a special structure within the laser, with one or more emitters converting the laser beam into horizontal lines through specific optical elements. The principle of horizontal line laser relies on internal optical components, such as glass […]
When it comes to laser 3D scanning, you can see its important role in modern industry, architecture, cultural heritage protection and other fields. Laser 3D scanning technology achieves high-precision, fast, and non-contact three-dimensional data collection by emitting laser beams and measuring the shape and surface characteristics of objects based on the reflection or scattering of […]
Laser excited phosphor (LEP), is an emerging laser lighting technology that is widely used in the lighting industry and creates new technologies for the lighting market. The principle of laser exciting phosphor: This is a new type of light source emitting device that emits blue laser light onto a phosphor element supported by a […]
Fiber coupling diode is a common photoelectric conversion device that can convert light energy into electrical energy and realize the reception and transmission of optical signals. It uses fiber coupling technology to couple the output of the laser diode into the optical fiber, and is widely used in optical communications, optical sensing and other fields. […]
In today’s society, the application of sweeping robots is becoming more and more common. Line lasers used in various sweeping robots include EEL line lasers, VCSEL line lasers, visible light lasers and infrared light lasers. So, what role does laser play in sweeping robots? Navigation and perception: By emitting laser beams from laser sensors […]


