Random Dot Pattern Projectors

Pattern projectors are a critical component in 3D sensing applications. Light-coding and active-stereo systems such as the Realsense (TM) D400 product family, utilize compact dot pattern projectors to provide a high-resolution 3D image.

To get the pattern projector up and running quickly, a driver is required. Check out the laser drivers page for suitable solutions.

Infrared and visible-wavelength pattern projectors

To avoid discomforting the user and for eye-safety reasons, commonly infrared wavelengths are used, typically 850nm and 940nm. The infrared dot projector should match the FOV of the cameras, and the number of dots is optimized to the cameras’ resolution. IR pattern projectors are required to be small and lowcost. Some robotics applications operate at higher range, such as 3-8 meters, which requires higher optical power.

Engage Photonics IR dot projectors feature exceptional uniformity, dot density and contrast. Patterns up to 93 deg. full-angle are available.

Micro3D for medical applications

Ultrashort-range SMT pattern projector with customer-defined pattern.

Wavelengths650, 680, 850, 940 nmV
Dimensions3.5 x 3.5 x 4.2 mmV
Optical power1-3 mWV
Typ. range15-50 mmV

Send inquiry


SMT pattern projector are based on VCSEL array light source, offering high optical power along with small size and footprint.

Available Wavelengths940 nm
Dimensions: 3.5×3.5×4.2 mm
Pattern: tiled random
Optical power1200-1400 mW
Typ. range: 10-600 cm

Request datasheet


Mid-range pattern projectors with configurable pattern and safety features. Integrated eye-safety electronics, thermistor and laser power monitor signal. Projection distance is adjusted per application.

650, 680, 830, 850, 940 nm V
Dimensions:  20 x 14 x 9 mm Hi-vol
Pattern:  True random V
Optical power 10 – 350 mW V
Typ. range:  10 cm – 10 m (4″ to 30ft) V

Request datasheet


Lowcost customizable pattern projector development modules down to 6mm external diameter. Projection distance is adjusted per application.

650, 680, 830, 850, 940 nmV
Dimensions: Min. D6x12mmV
Pattern: True randomV
Optical power10 – 500 mWV
Typ. range: 3 – 400 cmV

Request datasheet


Lensless pattern projectors utilize advanced Diffractive Optical Elements (DOE) which eliminate the need in a collimating lens. While offering reduced contrast relative to their collimated-beam counterparts, these projectors are free from the undesired zero-order beam and reduce module cost.

Request datasheet

Custom dot pattern projector

Engage Photonics offer development and mass production of pattern projectors at any wavelength from 400nm to infrared. Be sure to send us your specifications.

Find an optimal solution for your 3D sensing system

We have 8 years of experience in 3D sensing system design and characterization. If you are not sure about your pattern projector requirements, send us your 3D sensor camera data and we would be glad to offer an optimal existing or custom solution for your application.