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Related Experiment Video

Updated: Jan 27, 2026

Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities

Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities

Published on: April 22, 2013

Miniature holographic projector with cloud computing capability.

Michał Makowski, Adam Kowalczyk, Marcin Bieda

|March 16, 2019

Summary

This study presents a miniaturized holographic projector under 5 cm³, utilizing dynamic liquid-crystal spatial light modulators for efficient color projection. This technology enables bright, low-power displays for future handheld devices.

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Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities

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Evaluation and Manipulation of Neural Activity Using Two-Photon Holographic Microscopy

Evaluation and Manipulation of Neural Activity Using Two-Photon Holographic Microscopy

Published on: September 16, 2022

Area of Science:

Optics and Photonics
Computer Engineering
Display Technology

Background:

Miniaturization of projection systems is crucial for portable electronic devices.
Holographic projection offers high-resolution imaging but faces challenges in size and power consumption.

Purpose of the Study:

To develop a fully functional, miniaturized holographic projection head.
To achieve efficient color projection with low power consumption for handheld applications.

Main Methods:

Utilized computer-generated holograms dynamically displayed on a liquid-crystal spatial light modulator.
Implemented spatial division for color projection and anti-reflection coated prisms for simplified light paths.
Employed real-time calculations on a remote server with on-the-fly fringe compression and cloud computing.

Main Results:

Achieved a projection head volume below 5 cm³.
Demonstrated color projection without color breakup and minimal light loss.
Attained apparent image brightness equivalent to 15-500 lm/W with only 1 W of local electrical power.

Conclusions:

The developed miniaturized holographic projector is a viable technology for future handheld displays.
The system offers high efficiency and low power consumption, overcoming previous limitations.
This innovation paves the way for advanced portable imaging solutions.