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Design Comparison

Low Cost Internet Competitors' Design

Competitors' Design

OnPoint Lasers' Design

OnPoint Laser Design

Safety

  • All Green Laser Pointers produce a green beam by pumping an Infra Red, 808nm, laser beam thru a crystal. This 808nm laser beam is invisible and therefore poses a safety risk. Unlike our low cost competitors, OnPoint Lasers' Green Laser Pointers employ an IR filter to prevent the invisible Infra Red beam from escaping.
  • All Laser Products are regulated by the FDA's Department of Radiological Health. FDA approval relies on strict reporting by manufacturers. OnPoint Lasers only works with manufacturers who are in compliance with the FDA's regulations and can provide documentation when requested.

Lifetime of the Laser Diode

Several design factors impact the lifetime of the Laser Diode and therefore the reliability and life time of an OnPoint Lasers' Laser Pointer.

  • The OnPoint Lasers' Laser Diode is protected by a cap and is packaged in a clean room with nitrogen. This cap and packaging process protects the laser diode from damage by dust or moisture.
  • Both the laser diode and the crystal emit heat. By separating the two heat sources with the focus lens, an OnPoint Lasers' Laser Pointer can dispatch heat more efficiently. This more efficient dispatch of heat protects the diode and increases its reliability and lifetime.

Reliability of Performance

Several design elements allow us to offer a Laser Pointer with reliability that exceeds that of our lower cost competitors.

  • The drive circuit for the OnPoint Lasers Laser Pointer is based on a photodiode feedback loop that monitors the optical output and provides a control signal for the laser diode. This maintains operation at a constant optical output level. Our low cost competitors' drive circuit operates the laser diode without a photodiode feedback loop, the laser diode is simply driven at constant current. This causes the optical output to fluctuate as the laser diode temperature changes. OnPoint Lasers' Laser Pointers regulate power fluctuations in this way to ensure a consistently bright beam/dot.
  • The OnPoint Lasers' Laser Module, crystal and diode are aligned by experienced engineers who check several critical points during assembly to ensure reliability.