APPLICATION 01
Golf Laser Rangefinder
Measure the distance to flagsticks or targets to help golfers choose clubs. Product performance depends on emission power, optical design, receiving sensitivity, algorithms, and environmental conditions.
Interactive application guide
905 nm laser application guide: from TO56 chip to golf rangefinding
A seven-chapter visual guide through the chip, TO56 package, pulse, optics, module, time-of-flight measurement and golf application.
LASER TECHNOLOGY EXPLAINED
905nm Laser
From a single chip to a precise ranging
Using a continuous 2D line animation, understand how the 905nm semiconductor laser goes through TO56 packaging, optical coupling, and module integration to ultimately be used for golf laser rangefinding.
905nm Near-InfraredTO56 PackageTOF Time-of-Flight RangingGolf Applications
One, continuous animation: from chip to golf course
Click play, and the narration will switch along the timeline; you can also drag the progress bar or jump directly to a specific section. Voice reading depends on whether the browser supports Chinese speech synthesis.
FROM CHIP TO GOLF905nm chip on wafer
Scene 1 / 7
First, prepare the laser structure on the semiconductor wafer. After wafer inspection, dicing, and chip screening, obtain 905nm laser chips that meet the requirements.
00:00 / 00:35Drag Progress to Skip
Narration is displayed in stages. When voice is enabled, browser Chinese speech synthesis is called; browser, device, or system settings may affect voice availability.
Two, where can 905nm lasers be used?
905nm belongs to the near-infrared band, suitable for combination with pulse-driven, receiving detectors and timing circuits, used in various active ranging and perception scenarios.
APPLICATION 02
Robots and Mobile Devices
It can be used for specific short- or medium-range ranging solutions, such as robot obstacle avoidance, spatial perception, and some LiDAR architectures, and should be selected according to system specifications.
APPLICATION 03
Industrial Distance Measurement and Sensing
With proper optical, detection, and signal processing design, it is used for distance detection, position detection, or presence detection applications.
Three, how is distance calculated from Time of Flight (TOF)?
The rangefinder records the round-trip time of a laser pulse from emission to receiving the reflected echo. Since light travels both to and from the target, the target distance needs to be divided by 2.
Distance = Speed of light × Round-trip time ÷ 2
d = c × Δt / 2, where c is approximately 3 × 10⁸ m/s
Important Notice:Actual ranging accuracy is also affected by timing resolution, detector response, signal-to-noise ratio, target reflectivity, optical alignment, multipath reflection, and ambient light. The 162.4 m in the animation is for demonstration purposes only.
Four, from chip to complete device, which links affect performance?
Chip and Packaging
Wavelength, peak power, pulse width, divergence, thermal resistance, bonding and packaging reliability.
Optics and Drive
Lens position, optical axis deviation, spot quality, drive waveform, power supply integrity, and thermal design.
Reception and Algorithms
Detector performance, filtering, echo identification, timing measurement, environmental adaptability, and safety design.
5. 905nm Laser Safety Tips
905 nm light is generally invisible; not seeing the beam does not mean it is safe. Do not look directly into the emission aperture, and do not aim the laser at human eyes or observe through optical devices such as telescopes. Product design, testing, and use should comply with applicable laser safety standards, considering pulse energy, repetition rate, divergence angle, and optical system in the evaluation.
