The DOE laser module from Desheng Optoelectronics offers customizable diffraction patterns, multiple wavelength options, and stable high‑power performance.
Desheng Optoelectronics provides diffraction‑optics (DOE) laser modules that can generate a variety of optical patterns such as grids, multi‑lines, rings, crosshairs, and dot matrices. These modules are used in machine‑vision and optoelectronic inspection systems like barcode scanners, 3‑D sensors, and viewfinders.
The modules support several wavelength ranges (420‑980 nm), laser powers up to 200 mW, divergence angles from 10° to 110°, and feature a compact Φ22×100 mm aluminum housing. They operate from –20 °C to 55 °C, have a lifetime of at least 10 000 h, and offer high brightness uniformity (>70%). This manual is written in Chinese.
| Wavelength range | 420‑980 nm (depending on pattern) |
|---|---|
| Laser power | 0.1‑200 mW (depending on wavelength) |
| Divergence angle | 10°‑110° selectable |
| Best line width (1/e²) | < 20 µm |
| Working distance | < 200 mm (customizable) |
| Size (diameter × length) | Φ22 mm × 100 mm |
| Operating temperature | -20 °C to 55 °C |
| Lifetime | ≥ 10 000 hours |
The module supports wavelengths from 420 nm up to 980 nm, with specific ranges for each pattern option (e.g., 420‑700 nm for crosshair, 450‑980 nm for dot line).
The highest listed output is 200 mW for the 530‑680 nm grid option; other wavelength options have lower maximum powers.
Divergence angles are selectable from 10° up to 110° in various steps.
The module operates from –20 °C to 55 °C.