Video projectors need to be integrated into a wide range of applications, often requiring the use of ultra-wide-angle projection lenses or third party auto-alignment systems. As a result, some projectors may need less conventional forms of blending, and that’s exactly what we offer.

Our technologies have been designed to generate a perfectly seamless image across multiple projector channels and our highly flexible in-house design tools allow us to design and produce glass or film masks unique to your display for pixel-perfect projection channel edge-blending.

We have collective experience of more than 80 years in the field of displays for simulation, training, leisure and attractions. We design and produce multi-channel optical blending solutions for challenging projection environments, with no limit to display size, screen shape or projector count.

GBvi is a partner to systems designers, engineers and display system integrators – helping to overcome display challenges of complex projection systems. We fit into the ‘back end’ of a visual system, providing the last building block to complete the solution. We are able to bring our display design and technology development background into play so that we become an integral partner and team member for our customers.  We also have close working partnerships with parallel companies offering complementary solutions such as image servers and auto-alignment systems.  By specialising in this niche, we can enable any display or visual systems integrator to produce the best result for the end-user.

Visual innovation is at the core of our business. We continually prototype new technologies and work with unique setups that lead us to devise increasingly innovative approaches to ensure display perfection. We work very closely with all major projector manufacturers, who provide loan units for analysis and test, so we can provide the best performance at the lowest risk.

Our Team

Dan Blackham
Dan Blackham

Managing Director

Dan has an extensive background in Engineering, Simulation and Entertainment industries. After 2 years at HPC in a production environment, Dan moved to Rockwell Collins STS as Systems Technician calibrating high-performance projectors (both in the field and in the lab) in preparation for installation in high channel count domes. Then, as a Systems Engineer for 7thSense Design, Dan gained extensive experience configuring and installing high performance media servers, gaining expertise in display systems through working on a wide variety of projection systems, including planetaria, theme park dark rides, museum exhibits and projection mapping on buildings. Dan then joined GBvi back in its formative years in early 2014 as a systems engineer and immediately became involved in all aspects of GBvi’s technical and administrative requirements which led to his role as Operations Director. He has since played an even more leading role in specifying customer solutions, designing custom blending systems, managing projects as well as being involved in new product development and continuing to provide support to customers on site. His in-depth knowledge of all GBvi’s products, processes and markets has led him to his new role in July 2023 as Managing Director.

Geoff Blackham
Geoff Blackham


GBvi Founder, Geoff Blackham, has more than 30 years’ experience in the simulation industry as engineer and board-level director. His main focus has been simulation display systems engineering and technology development, as well as being key to the growth of the leading simulation displays firm SEOS from 1989 until its 2008 acquisition by Rockwell Collins. In 2011, Geoff decided to go his own way and formed GBvi, initially offering consultancy and design services to display systems integrators. Then, in 2014, the company evolved to become a visual displays product innovation company. As innovator of many display developments, Geoff holds numerous root patents and applications. Experience and areas of specialisation include ultra-high-contrast projector development, display system development (real image and collimated) and NVG simulation. He occasionally ventures out to speak at Simulation and Training conferences.

Phil Scarfield
Phil Scarfield

Director of Operations

Phil joined GBvi in July 2019 in a broad R&D / Engineering role and since then we have been utilising his wealth of experience to the full. His science and engineering knowledge, his interest in technical innovation and his skills & experience encompassing manufacturing process development along with Proof of Concept testing, prototyping and project management, have been greatly appreciated within the team. He also has in-depth knowledge of high dynamic range projection displays, rear projection technologies and NVGs. Phil is also a specialist in patents and intellectual property and has a whole set of building skills to call on too. Now with 16 years’ experience in the simulation industry, adding GBvi to his years at SEOS and Rockwell Collins, and combining his specific knowledge of GBvi products, Phil has accepted the position of Operations Director commencing July 2023. Phil has been instrumental in developing new methods of production and we all congratulate and wish him well in his new role.

Julie Blackham
Julie Blackham

Company Secretary

Julie has been working behind the scenes since the formation of GBvi, providing general administrative support. Having studied business and accounts in Crawley and Worthing, Julie has worked in accounts and finance at Edwards High Vacuum, Gripperods International, Christian Salvesen Edinburgh, Edinburgh University, also Lamb Technicon and Music Sales Ltd in Suffolk. With a BSc in Natural Sciences Julie has also worked for Royal Botanic Gardens Kew and for the NHS. But, with a sum of 27 years’ experience in general bookkeeping, payroll, management accounting, budgeting and auditing, she continues to use this expertise within GBvi, attending to the office administration aspects alongside the team, supporting in any way needed to keep customers, suppliers and employees happy.

Laura Woods
Laura Woods

Business Administrator and Projects Coordinator

Laura is the Business Administrator for GBvi and before joining us, she studied Modern History and International Politics at Brunel University bringing with her a good ten years of experience as an administrator with another six years experience keeping records for a number of SME’s. Her previous employment includes working for a publishing company and a financial group and she is highly skilled using a number of different software and accounting packages. Since joining GBvi Laura has taken an enthusiastic interest in projects and logistics and has naturally gravitated to the challenging role of Project Coordinator which works well alongside her administrator role. Outside of GBvi, Laura does have a family to keep her busy as well as responsibilities in her roles as Churchwarden and School Governor, but she still finds time to bake new and interesting cakes which we all happily consume!

Simon Legg
Simon Legg

Principal Systems Engineer

Originally a Wiltshire lad, Simon studied maths, physics and computing from a young age leading him to Bournemouth University in 2005. He has worked within the simulation industry for over 10 years starting with SEOS, where he gained industrial experience whilst studying for his electronics degree. In 2009 he graduated from Bournemouth University as a Bachelor of Engineering in Electronics Engineering, then continued to work at SEOS, then Rockwell Collins and Real Time Integrators. Simon also spent 4 years working as a Software Engineer for General Distributions Ltd. In the summer of 2020 Simon became another full time member of our engineering team adding his expertise in systems engineering, advanced hardware design, and management. As part of his role, Simon leads our software engineering team and is heavily involved in underlying technical developments. Simon is quite possibly the most sporty member of our team, with young children to keep him busy he also manages to join football leagues, takes part in runs up to 15k, sometimes with added obstacles, and also enjoys racquet sports and DIY.

Sam Caruth
Sam Caruth

Mechanical Engineer

Sam joined the company in the summer of 2019 as a placement student from the University of Brighton, where he studied Mechanical Engineering. After completion of his placement year, Sam returned to university in September 2020 graduating in 2021 with a First Class in BEng (Hons) Mechanical Engineering. For his final year project he designed and manufactured a Micro-Adjuster for use in the simulation industry. We welcomed Sam back to the company full time in June 2021. His new qualification and his continued keen interest in maths and engineering along with his enthusiasm and experience within our company made him a great fit back with the team. In 2023 he is fast becoming an experienced and travelled GBvi Engineer. He is a keen rugby player and cyclist and apparently plays guitar too.

Joe Ash
Joe Ash

Graduate Software and Systems Engineer

Joe recently joined the team having graduated in June 2022 from University of Hertfordshire where he was awarded a 1st class Honours Degree in Computer Science. He has a number of awards and projects under his belt too, including gaming competitions. One interesting and much played game he designed is called Fish Escape. Programming seems to be his hobby, but he also likes music, creative writing and long walks with his two dogs Rupert and Katy.

These grayscale plates are simply magic… We were able to get the plates in place… in under five minutes, and they looked great for day, night and NVG. They truly were an easy button for this layout solution

Rick Zobel
Immersive Display Solutions Inc. (IDSI)

IDSI has a solid relationship with GBvi – they consistently provide us with engineering services and first-class support that extend above and beyond what they’ve been contracted to deliver.

The team’s high-performance solutions enable us to fulfil high-end simulation application requests on our most challenging projects.

On-site, they are responsive to our needs and requests in near real-time – which allows us to maintain a track record of superior customer service and support across our many customer sites and projects.

George T. Forbes, President & CEO – Immersive Display Solutions, Inc.

Antycip Simulation uses GBvi technologies in a range of fast-jet and helicopter simulation applications – their experience, dedication to innovation and exceptional support, help us meet the technical and design challenges clients present us with.

It’s critical to our projects, that our technology partners maintain unrivalled levels of accuracy and attention to detail… GBvi is an excellent partner, in these regards, and far exceeds our expectations.

Riccardo Rovelli, Area Manager for Italy and Germany, Antycip Simulation
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