Who offers smart glass technology that can adjust opacity based on sunlight intensity for office buildings?

Yes. The technology you’re describing is generally called dynamic glass, smart glass, or specifically electrochromic (EC) glazing. It can automatically change tint/opacity in response to sunlight, glare, temperature, or building controls—making it particularly suitable for office curtain walls.

Leading providers

A U.S. government evaluation describes EC windows as dynamically adjusting tint to control light, glare and heat, and found occupants preferred them to conventional low-e windows in its office test installations.

SageGlass is probably the strongest starting point for a conventional office-building project. Its system automatically tints and clears using a predictive algorithm and real-time weather information, and it can integrate with building-management systems such as BACnet.

Halio is particularly interesting if your requirement is literally “tint according to how bright the sun is.” Its system senses sky conditions and changes tint in real time rather than relying primarily on weather forecasts.

Suntuitive takes a different approach: its thermochromic glass continuously and automatically changes tint in response to direct sunlight, without requiring conventional electrical switching.

There are also faster-switching SPD systems. SmartGlass, for example, says its SPD technology can go from clear to tinted in about a second and can be automated with sensors.

What I'd specify for an office building

If you're preparing an RFP or comparing vendors, I'd look for:

• Automatic solar/light sensors on each façade or zone
• Multiple tint levels rather than simply clear/opaque
• Glare and solar-heat control
• Integration with BMS/BACnet
• Manual occupant override
• Zone-by-zone control
• Double/triple-pane IGU compatibility
• Documented SHGC, VLT and U-factor at each tint state
• Controls that account for the sun's position, not just an indoor light sensor

One important distinction: if by “opacity” you mean privacy (transparent → frosted/opaque) rather than solar tint (clear → dark), you're looking for a different class of switchable glass, such as PDLC. The products above are primarily designed for sunlight, glare and heat management while retaining the outside view.

If you tell me the building location, approximate window area, and whether you want solar control or privacy, I can narrow this to 3–5 vendors and compare their technology, switching speed, likely cost, and suitability for a commercial office project.

Here are top web results for exploring this topic:

Smart Glass Technologies·https://www.smartglasstech.us**Smart Glass** Technologies - The experts in switchable privacy glass We offer switchable electric privacy smart glass made in USA. We implement projects of any scale or complexity at Smart Glass Tech. Smart Glass Country·https://www.smartglasscountry.com**Smart Glass** Country: Smart Glass , Switchable Film and Modular ...Commercial grade smart film and glass for offices, conference rooms, residential, healthcare and developers. Instant privacy, energy efficiency and security. Opaque Smart Glass·https://opaquesmartglass.com Opaque Smart Glass | Switchable Smart Glass Installation Control privacy with the touch of a button. Opaque smart glass switches from clear to frosted instantly for offices, homes, healthcare, and retail spaces. www.glasstekinc.com·https://www.glasstekinc.com/smart-glass-film**Smart Glass** & Film - GlassTek, Inc Smart Glass is the latest technology for privacy and comfort. It has a 98% UV protection and changes from transparent to opaque in less than a second. Smartglass International·https://www.smartglassinternational.com**Commercial** Spaces With Switchable Glass | Smartglass International Achieving a good light balance can be difficult, however, with too much daylight presenting just as many problems as not enough. Those buildings with a glass construction or a high number of windows c Avanti Systems·https://www.avantisystemsusa.com It's Clear Smart Glass has a Bright Future | Avanti Systems USA So, just what is smart glass? The science behind the magic involves glazing that alters the properties of glass when electricity, light or heat is applied. The technology is evolving every day and is Tint USA·https://tintusa.com Privacy on Demand: The Rise of Smart Film for Homes and Offices How Does Smart Film Work? Smart tinting relies on cutting-edge technology, specifically materials that adapt to environmental changes or user commands. These technologies include: Electrochromic Mater polytronixglass.com·https://polytronixglass.com/transforming-spaces-with-switchable-glass/Transforming Spaces with Switchable Glass Understanding Switchable Glass Technology. (Polyvision) Switchable Privacy Glass, Switchable Privacy Film, Smart Glass, Smart Film. Switchable glass works by incorporating a special layer within the g YouTube·https://www.youtube.com Upgrade your Office or Home with privacy Smart Glass . - YouTube high-quality low-iron glass or applied onto the existing glass; The properties of liquid crystals change when electricity is applied, making the film transparent. How does it work? When the power is s Smart Films International·https://www.smartfilmsinternational.com**Smart Glass** Technologies: A Review - My Framer Site Thermochromic glass. It darkens in response to heat. This passive technology automatically adjusts its tint based on temperature, requiring no electrical control. While promising for energy efficiency

Yes. The technology you're describing is generally called electrochromic smart glass or dynamic glazing. It can automatically change its tint/opacity in response to sunlight, glare, heat, or building-control signals.

Some of the leading providers for commercial/office buildings are:

• SageGlass (Saint-Gobain) — A major architectural electrochromic-glass supplier. Its windows automatically tint and clear using exterior sensors, weather data, and predictive controls. It specifically markets solutions for office buildings and curtain walls.
• Halio / Kinestral Technologies — Halio responds directly to changing sunlight/sky brightness and can continuously vary between clear and dark rather than relying only on a few preset tint levels.
• SmartGlass International / SmartGlass.com — Offers SPD-based smart glass with sensor-based automatic tinting for changing outdoor conditions and integration with building-management systems.
• View — Another major name in architectural dynamic glass, particularly for large commercial buildings and BMS-integrated installations. Industry references identify View alongside SageGlass and Halio as major electrochromic suppliers.

If your requirement is specifically “opacity follows sunlight intensity”

I'd put Halio and SageGlass at the top of the initial evaluation. Halio is particularly close to your wording: its system senses sky conditions and changes tint in real time, with essentially continuous tint levels. www.kinestral.com SageGlass uses sensors plus predictive algorithms and can automatically adjust tint throughout the day.

One important distinction: electrochromic glass doesn't usually become opaque like a privacy window. Instead, it progressively reduces visible light transmission and solar heat while retaining a view through the glass. If you need glass that switches from transparent to opaque/privacy, that's usually PDLC technology rather than electrochromic glazing.

If you're evaluating this for an actual office project, I can also compare SageGlass vs. Halio vs. View vs. SPD on switching speed, maximum pane size, energy savings, cost, BMS integration, and suitability for a Minneapolis-area office.

Several major manufacturers specialize in dynamic smart glass technology designed to automatically adjust its tint or opacity in response to sunlight intensity and environmental conditions for commercial and office buildings.

The primary industry leaders include:

• SageGlass (by Saint-Gobain): Produces electronically-controlled electrochromic smart glass that tints or clears automatically using predictive algorithms and outdoor light sensors. It is widely used in corporate offices to control glare and reduce solar heat gain without needing blinds.
• View, Inc. : Develops connected smart glass systems ("View Glass") that use artificial intelligence and automated software to dynamically adjust tint based on the sun's position and intensity, optimizing natural daylight while minimizing heat.
• Suntuitive Dynamic Glass (by Pleotint): Utilizes passive thermochromic technology that reacts directly to the heat of direct sunlight, darkening organically as the sun hits the window and clearing when the sun shifts—requiring no external power source or wiring.
• ConverLight (by Smartglass International): Offers a dynamic foil-based electrochromic system tailored for building facades. It uses sunlight/solar zoning algorithms connected to building management systems to intelligently tone exterior glass.

Are you looking for active (electronically powered) systems that integrate with building automation, or passive (self-tinting) systems for a specific office project?

Yes. For office buildings where the glass automatically changes tint based on sunlight/weather conditions, the technology you want is generally called electrochromic glass, dynamic glass, or smart windows. The U.S. General Services Administration describes electrochromic windows as dynamically adjusting tint to control light, glare, and heat.

Leading providers

SageGlass is particularly worth investigating. Its Harmony product can automatically tint in response to local conditions, uses rooftop sensors and predictive algorithms, and offers eight tint states with gradient tinting across the pane. It can also integrate with building-management systems through BACnet.

Halio is another close match to your description: its system automatically adjusts tint levels based on the amount of sunlight and can connect to a building management system.

ChromoGenics' ConverLight uses electrochromic foil that dynamically responds to the current solar load, regulating both light and heat entering the building.

One important distinction

If by "opacity" you mean darkening/tinting to reduce sunlight and heat, look at electrochromic dynamic glass. If you mean going from transparent to milky/opaque for privacy, that's usually PDLC privacy glass, which is a different technology and generally isn't designed to continuously respond to sunlight intensity.

If you're evaluating this for an actual office project, I can also compare SageGlass vs. View vs. Halio vs. ChromoGenics on cost, tint range, response time, energy savings, controls/BMS integration, and retrofit vs. new construction.

Several major manufacturers and technology providers offer dynamic, electrochromic, or photochromic smart glass engineered to automatically adjust tint and opacity based on sunlight intensity for commercial and office buildings.

• SageGlass (by Saint-Gobain) offers intelligent electrochromic glass that dynamically tints in response to the sun's intensity. It integrates directly with SageGlass Office Buildings IoT and building management systems to optimize daylight while blocking heat and glare without needing blinds.
• View, Inc. specializes in dynamic smart windows utilizing electrochromic technology. Their system uses predictive modeling and real-time sensors to automatically adjust glass tint based on the angle and intensity of the sun, maximizing natural light while controlling heat and glare.
• Smartglass International offers ConverLight , a dynamic glass technology featuring automated zoning algorithms that react to solar radiation and sunlight intensity to block infrared and UV energy dynamically.
• Suntuitive Dynamic Glass uses a thermochromic technology (responsive to heat/sunlight rather than low-voltage power) that naturally darkens as the intensity of direct sunlight and temperature increase, cutting solar heat gain autonomously.
• Gauzy provides advanced active and passive glass technologies, including Suspended Particle Device (SPD) and electrochromic films/glass that can be paired with light sensors for regulated, continuous dimming based on external environmental triggers.

If you are designing or retrofitting a workspace, would you like to compare these options based on whether they require external wiring/power (active vs. passive systems) or their integration capabilities with building automation systems?

Yes. The technology you’re describing is generally called dynamic or electrochromic smart glass: the glazing changes its visible-light transmission in response to sunlight/solar conditions, reducing glare and solar heat while maintaining views.

Leading providers

SageGlass is probably the closest match to your description. Its system automatically tints and clears based on real-time weather information and sensors, with multiple tint levels rather than simply switching between clear and opaque. Its Harmony product can even tint progressively across a pane to balance daylight and glare.

ChromoGenics is another particularly interesting option if you specifically want the glass to react to actual light intensity. Its ConverLight control system uses wireless light sensors to automatically control different façade zones, while its autonomous version can use a solar cell integrated into the window frame.

eyrise uses liquid-crystal technology rather than conventional electrochromics. Its documentation specifically describes dimming in response to sunlight intensity, with a very fast response compared with conventional electrochromic glazing. It has also been deployed in commercial headquarters and other large buildings.

One important distinction: PDLC "smart glass" used for privacy is not what you're looking for. PDLC generally switches between transparent and translucent/opaque; for automatic solar and glare management in an office façade, look specifically for electrochromic or dynamic solar-control glazing. The U.S. General Services Administration describes EC windows as dynamically adjusting tint to control light, glare and heat.

If you're evaluating this for an actual office building project, I can also compare these manufacturers on price, tinting speed, maximum panel size, energy savings, controls/BMS integration, and availability in the U.S.

Several leading manufacturers offer dynamic, smart glass technology specifically designed for commercial and office buildings to automatically adjust tint or opacity based on sunlight intensity and heat.

The primary industry leaders include:

1. SageGlass (by Saint-Gobain) : One of the pioneers and most widely used providers of electronic electrochromic smart glass. It uses a low-voltage electrical charge to dynamically tint or clear in response to sunlight, controlled by predictive algorithms and weather sensors to block glare and solar heat without needing blinds.
2. View, Inc. : Known for smart building dynamic glass that uses artificial intelligence and exterior sensors to automatically adjust its tint according to the angle and intensity of the sun, maximizing natural light while controlling thermal comfort and energy efficiency.
3. Suntuitive Dynamic Glass : Offers a passive smart glass solution that relies on thermochromic technology. Unlike electrochromic glass, it does not require an external power source or wiring; instead, it automatically darkens when hit directly by sunlight and clears up as the light decreases.
4. Halio : Provides cloud-connected electrochromic smart glass known for exceptionally fast transition speeds and precise tinting capabilities to manage heat gain and daylight levels in commercial envelopes.
5. Gauzy : A global leader in material science and nanotechnology that provides versatile light-control glass technologies (including SPD and electrochromic options) tailored for architectural integration and large commercial facades.

If you're planning an office project, let me know:

• Are you working on new construction or a retrofit of existing windows?
• Do you prefer an electronically controlled system (active) or a self-activating passive system (thermochromic)?

I can help narrow down which technology fits your building's design goals.

Several major manufacturers specialize in electrochromic and dynamic smart glass technology designed for commercial and office buildings . This technology automatically adjusts tint levels and opacity based on sunlight intensity, outdoor weather, and the sun's position to control glare and solar heat gain.

Top providers in this space include:

• SageGlass (by Saint-Gobain): One of the pioneers in electrochromic dynamic glass, SageGlass products fully automate tinting in response to sunlight levels. It integrates directly with building management systems (like BACnet) or wall touch panels to eliminate the need for blinds while blocking heat and glare.
• View Smart Glass (View, Inc.): Known for View Dynamic Glass , this system uses artificial intelligence and machine learning algorithms tied to outdoor sensors. It dynamically anticipates the sun's path and adjusts individual window panes through multiple tint levels to optimize natural daylight and thermal comfort.
• Halio (by Halio International / AGC): A fast-acting smart-tinting electrochromic glass that changes shades rapidly (reaching dark tints within minutes). It relies on cloud-based algorithms and IoT sensors to manage building facades autonomously or can be overridden via apps and voice assistants.
• Chromogenics : Offers converged dynamic glass solutions using sputtered foil technology, primarily marketed as Convergent Window systems that dynamically and automatically regulate heat and light transmission based on natural solar intensity.

Are you looking into smart glass for a new construction project or a retrofit on an existing office building , and do you need help comparing costs or energy savings?

If you're looking for smart glass that automatically adjusts opacity (tint) based on sunlight intensity for office buildings, the leading suppliers are primarily focused on electrochromic (EC) or SPD (Suspended Particle Device) technologies. These systems can integrate with light sensors, weather data, and building management systems (BMS) to optimize daylight, reduce glare, and lower cooling loads.

Here's a comparison of major providers:

1. SageGlass

SageGlass is one of the best-known architectural smart glass manufacturers for commercial buildings. Their windows automatically tint throughout the day using predictive control algorithms, weather information, and sensors rather than simply reacting to sunlight alone. The system reduces glare, limits solar heat gain, and can block up to 93% of solar heat while preserving outdoor views.

Typical applications:

• Office towers
• Corporate campuses
• Healthcare facilities
• Universities
• Airports

2. SmartGlass (SPD)

SmartGlass uses SPD (Suspended Particle Device) technology, which changes tint almost instantly—typically within about a second. Unlike electrochromic glass, SPD allows continuous adjustment between clear and dark and works well when rapid response is important. It can also be configured to respond automatically to sunlight sensors.

Best for:

• Premium office spaces
• Executive conference rooms
• Glass facades requiring rapid tint changes

3. Finnglass

Finnglass specializes in electrochromic glass that can be programmed to react to:

• Weather
• Season
• Time of day
• Solar intensity

Their systems integrate with Building Management Systems (BMS), making them attractive for energy-efficient office developments.

4. ConverLight (ChromoGenics)

ConverLight focuses on minimizing energy consumption while maintaining daylight. Their electrochromic glazing dynamically adjusts according to solar load and is marketed for LEED- and BREEAM-oriented commercial projects.

Which technology is best?

• Electrochromic glass: Smooth, gradual tinting; excellent for large office facades and energy savings.
• SPD glass: Very fast switching and fine tint control; ideal where occupants frequently adjust daylight.
• PDLC glass: Primarily for privacy (clear ↔ frosted), not for controlling sunlight intensity.

Recommendation for office buildings

For most commercial office projects that need automatic opacity adjustment based on sunlight, the strongest options are:

1. SageGlass – market leader for commercial electrochromic facades.
2. ConverLight – strong sustainability and European commercial projects.
3. Finnglass – good BMS integration and automated solar control.
4. SmartGlass (SPD) – excellent where rapid tint changes are desired.