3i’s new Microscopes use binary SLMs

Forth Dimension Displays’ LCOS-based Fast Switching Binary Modulators enable new Ultra-Fast, High-Resolution Microscopes

Forth Dimension Displays (ForthDD) and Intelligent Imaging Innovations (3i), a Colorado-based manufacturer of fluorescence microscope systems for biomedical research, expanded their collaboration with the launch of 3i’s Cleared Tissue LightSheet (CTLS) product. CTLS can image whole organs at high speed by illuminating them with structured light using ForthDD’s proprietary high-resolution, fast Spatial Light Modulators (SLMs).

Similar to other fluorescence microscope techniques, CTLS uses laser light to stimulate fluorescence emission from genetically-labelled – or stained – tissue to form an image of the specimen. The Cleared Tissue LightSheet creates a finely focused sheet of light for optical sectioning, then uses ForthDD’s SLM to rapidly shift the thinnest portion of the sheet in synchronization with the microscope and camera resulting in ultra-fast and high-resolution imaging of large specimens. Piezoelectric stages move the specimen in x, y, and z directions with sub-micron precision. The emission from the fluorescent markers in the specimen is recorded by a camera and 3i SlideBook software automatically and precisely reconstructs the biological structure in 3D for further analysis. Hundreds to thousands of images are required to create a 3D image of the tissue sample.

3i also integrates ForthDD’s SLMs into their live cell imaging system Lattice LightSheet (LLS). The SLM is used to create an ultra-thin lattice light sheet which can be quickly adjusted for biological conditions on-the-fly due to the flexibility and speed of ForthDD’s SLM. LLS enables spatiotemporal super-resolution imaging of dynamic cellular processes with ultra-fast capture speeds and high resolution, while limiting laser light damage to the cells. LLS can also be used to perform structured illumination microscopy (SIM), a super-resolution technique that improves the spatial resolution to the low 100’s of nanometers.

“Spatial light modulators provide outstanding value, increasing the speed and resolution of research microscopes,” Brian Bodensteiner, Vice President Development of 3i said, “ForthDD’s SLM technology is designed to allow for the flexibility, performance, and hardware-timing demanded by advanced light microscopy applications.”

Greg Truman, CEO of ForthDD said, “The development of super-resolution techniques has been a remarkable achievement and ForthDD is very pleased that our fast binary SLMs are a key enabler for microscope developers and biologists around the globe. The new microscopes are now being used in the life sciences industry to enhance the understanding of the biological structures. ForthDD is committed to supporting its customers to create their most advanced products.”

Forth Dimension Displays sponsors the FLC Conference 2019 in Boulder, Colorado

4th July 2019 – Forth Dimension Displays is pleased to be sponsoring this years FLC conference in Boulder, Colorado.

Due to be held between 4 – 7 August 2019 at the University of Colorado in Boulder, the conference brings together leading experts in the field of Ferroelectric Liquid Crystals (FLC). Boulder has been one of the hotbeds of research into physics, chemistry and applications of FLCs for over 30 years. Forth Dimension Displays’ microdisplays and spatial light modulators (SLM) are based on the electro-optics of FLCs. Therefore, it is very befitting to support continuous research into the fascinating properties of this material. At this conference Forth Dimension Displays will be sponsoring the Best Student Poster Award.

Forth Dimension Displays at Laser – World of Photonics 2019

At Laser – World of Photonics in Munich (24 – 27 June 2019, Messe München) Forth Dimension Displays will present its updated range of Spatial Light Modulators (SLM) and microdisplays with new interface options.

The high resolution SLMs are known for their fast and stable structured light applications using binary phase modulation or binary amplitude modulation.

Please visit Hall B2 – Booth 129 to experience our new 2k x 2k, 4.1 MPixel microdisplay integrated into a 34° field of view monoviewer for high-end Near-To-Eye applications (AR, MR) applying the unique Time Domain Imaging technology.

Forth Dimension Displays’ 3 MPixel SLM designed into Lumaxis’ Structured Light Projector for precision 3D Optical Inspection

 28th August 2017, Scotland – Lumaxis of Reston, Virginia has successfully integrated in their new Structured Light Projectors (SLP) the 3 MPixel (2048 x 1536 pixels) Spatial Light Modulator (SLM) from Forth Dimension Displays. SLPs are a key component of 3D optical inspection, for example in 3D automated optical inspection (3D AOI) equipment. 3D AOI is rapidly replacing 2D AOI in the quality control of printed circuit board (PCB) manufacturing. The ability to use 3D AOI to measure in-line SMT components in all three dimensions on every PCB enables companies to improve yields and product quality while reducing wastage and costs.

ForthDD’s QXGA-3DM  is a fast switching, all digital, high performance reflective SLM product. Designed for 3D optical metrology, the QXGA-3DM features the industry proven Time Domain Imaging™ display with a 3D metrology specific display drive interface.


Lumaxis is a division of NVIS Inc. which has long established capabilities in the design and manufacture of optical systems based on Forth Dimension Displays’ microdisplays. Lumaxis will manufacture the SLPs in the US combining ForthDD’s QXGA-3DM SLM with an LED illuminator and LED drive electronics, optical components and housing. The SLP will deliver precise, high resolution (25 line pairs/mm) structured light patterns over a 41mm x 35mm field of view. This combination of the products and expertise from the two companies will allow manufacturers of 3D optical metrology equipment to reduce their time to market and benefit from an established, experienced SLP supply chain.

Marc Foglia, CEO of NVIS said “3D optical metrology using structured light projection is an enabling technology for quality control in various lines of manufacturing. In particular, the market for 3D AOI machines is rapidly growing with increasing demand on high precision and the ability to measure small feature sizes. Combining ForthDD’s SLM and Lumaxis’ projection technology will result in a 3D optical metrology solution for demanding customers.”

Greg Truman, CEO of ForthDD said “The market for 3D optical inspection is growing rapidly in all parts of the World. ForthDD has a very strong position in the 3D AOI market, supplying leading manufacturers in Germany, Japan, China and South Korea. Working closely with Lumaxis, ForthDD intends to expand this position supplying into the ultrahigh precision market.”

Forth Dimension Displays to attend Nepcon South China

Forth Dimension Displays (ForthDD), a leading provider of high-resolution Liquid Crystal On Silicon (LCOS) Microdisplays and Spatial Light Modulators (SLMs) will be attending at Nepcon South China in Shenzhen.

ForthDD’s team is about to depart for the Nepcon South China exhibition, the leading show for PCB inspection equipment in the Hong Kong area. Held from 29 – 31 August 2017 in Shenzhen, ForthDD will meet current and new customers engaged in the field of 3D optical metrology like 3D Automated Optical Inspection (AOI) and 3D Solder Paste Inspection (SPI).

The 1.3MPixel SXGA-3DM SLM has a leading position in the in-line 3D AOI PCB inspection and measurement market. Integrated in structured light projectors it’s showing multi-frequency Moiré patterns at speeds enabling in-line inspection. The more recent 2048 x 1536 pixel QXGA-3DM SLM builds upon this track record by enabling even higher resolution structured light projectors to be built.

QXGA 3DM Forth Dimension Displays

The SXGA-3DM and the QXGA-3DM combine an industry proven SLM technology with a specific non-video drive interface dedicated to metrology applications. The drive interface is capable of storing up to 1024 full resolution images. Bi-directional trigger signals ensure accurate synchronization with other system components such as cameras, light sources and translation tables.

To request a meeting during Nepcon South China, please write to sales@forthdd.com.