Capillary slabs sealed inside the IGU cavity scatter incoming daylight uniformly across the room. Five build variants tune solar control, insulation, and panel size to project requirements. All hermetically sealed, permanent, and maintenance-free.
OKALUX is a hollow capillary slab encapsulated between two panes of insulating glass. The capillaries (extruded clear plastic tubes a few millimeters in diameter) are bonded into a slab the thickness of the glazing cavity. A glass fiber tissue layer in front of the capillaries diffuses incoming light uniformly. Direct sun, side-light, and overcast sky all become even, glare-free daylight inside the room.
OKALUX delivers diffused daylight through physical structure, not a printed or applied coating. A slab of fine plastic tubes plus a glass fiber tissue layer scatters incoming light uniformly. Views out are obscured (the surface reads as a luminous milky-white). Light transmission stays high and color-neutral.
The glass fiber tissue is what distinguishes OKALUX from KAPILUX. The tissue diffuses light, blocks UV, and tunes solar heat gain. Different tissue specifications produce SHGC values from 0.43 down to 0.14. Without the tissue (KAPILUX), partial through-vision is preserved at the cost of solar performance.
The capillary slab and tissue sit inside the hermetically sealed cavity. No exterior shading device, no moving parts, no cleaning access required. The building face remains a single flush plane, with the daylighting performance built invisibly into the glass.
OKALUX vision glazing comes in four build variants. They share the same capillary-and-tissue core but differ in cavity depth, overall thickness, max dimensions, SHGC range, and U-value. Reference values below; project-specific values depend on glass build-up, cavity dimension, and coating selection. Final specs confirmed on request.
Reference values from OKALUX published data. Project-specific performance varies by glass build-up, cavity dimension, and coating selection.
Values are estimates from OKALUX published data. Project-specific values vary. Consult R. Suare for design-phase spec coordination.
OKALUX HPI is the same capillary-glazing technology configured for opaque, high-performance thermal insulation. Specified where spandrel panels would otherwise be. R-values from R-33 to R-50 in 2" to 2.5" overall. Eliminates the need for aluminum back-pans and rock wool insulation behind spandrel glass, freeing up to 4" of building depth.
Use HPI when you would otherwise specify spandrel glass with back-pan and rock wool. Use the four vision variants above when you need daylight transmission.
Brochures, technical data, and tender specifications for the full OKALUX family: base, Plus, R, K, EVO, and HPI.
OKALUX is specified across building types where even, glare-free daylight matters: museums, schools, sports halls, healthcare, civic, residential. The right variant depends on solar load, framing system, and dimensional requirements.
Large clear-span roofs and high sidewalls demand glare-free, shadow-free daylight that does not interfere with ball sports. OKALUX provides uniform diffuse illumination from ceiling and clerestory positions, with no visible bright spots or direct solar penetration even in summer.
Classrooms and lecture halls require glare-free daylight at desk and screen level. OKALUX delivers even illuminance without blinds, reducing energy consumption while maintaining a comfortable visual environment. The Plus variants add solar control for south-facing elevations.
Manufacturing floors and operations facilities benefit from high-quality diffuse daylight that reduces eye strain and improves task visibility without glare. OKALUX roof and wall glazing delivers consistent illumination across wide production bays without creating shadows on work surfaces.
Reference projects using OKALUX across cultural, civic, healthcare, and education typologies. Selected installations from the OKALUX portfolio. Imagery courtesy of OKALUX.
Long-term OKALUX installation at the SF SPCA campus. Capillary daylighting in the animal care and adoption areas, providing diffuse, glare-free light beneficial to animal and visitor welfare. Over 20 years installed.
Residential application of OKALUX capillary glazing in a Southampton, NY private residence. Diffused daylight in interior volumes without direct sun penetration or glare.
OKALUX daylit operations facility in Council Bluffs, NE. Capillary glazing in the roof and high sidewalls delivers consistent, shadow-free diffuse daylight across the production floor.
Sports hall and clubhouse with full-wall OKALUX glazing. The capillary panels read as a luminous lantern at dusk, providing privacy from the street while delivering glare-free daylight to the sports floor inside.
We'll send samples, variant-specific spec sheets, and a project-matched SHGC and Ug recommendation within two business days. For design-phase support, schedule a lunch and learn or send your daylight study for review.
