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NEBULA’s LaserForge 2.0 Optical Engine Technology features three core anti-speckle mechanisms:

Multi-laser, multi-wavelength speckle reduction:

NEBULA X1 pro utilizes a total of 27 high-power lasers, including RGB lasers. Each color consists of multiple wavelengths.

The red lasers span a wide range of 635nm–651nm

The green lasers cover 519nm–531nm

The blue lasers range from 458nm–472nm

Because lasers of different wavelengths do not easily interfere with one another, speckle is reduced proportionally to 1/√N, where N is the number of laser sources per color.

Built-in depolarizer speckle reduction:

 inside the NEBULA X1 pro ’s optical path is a wedge-shaped depolarizer that converts polarized laser light into unpolarized light. This splits the beam into two orthogonally polarized components that do not interfere with each other, further reducing spatial coherence. This mechanism reduces speckle to 1/√2 of the previous level.

U-shaped optical path with rotating diffuser:

 NEBULA X1 pro integrates a rotating diffuser that dynamically scatters the light and continually alters its propagation path, effectively randomizing the laser wavefront and weakening interference.

 Thanks to human visual persistence, the fast-changing speckle pattern is perceived as an averaged image, leading to significant blurring or complete disappearance of speckle.

 NEBULA’s proprietary U-shaped optical path ensures that the laser light passes through the diffuser twice, unlike traditional designs that only offer a single-pass diffuser. This dual-stage diffusion greatly enhances speckle suppression and improves overall light uniformity in the projected image.

NEBULA will continue to treat speckle elimination as a core focus of next-generation optical engine development, with sustained investment in R&D.

Same as X1, the optical machine is the same

If you have any other questions, please don't hesitate to contact Nebula Customer Support at service@soundcore.com  for further assistance.