designer's own words:A door is mainly a hole for passing through a wall from one space to another, whether it be open or close. It may be defined as a threshold as well since it bears the tension to show what's on the other side. This door keeps the-hole-in-the-wall almost open yet visibility is not permitted by the use of light. It's basicly a door with laminated glass or acrylic panel mounted to the wingframe. Fiberoptic heads are placed into the same cavity at the wing to let spread the light through the glass for obtaining a curtain of light when the door is closed. It becomes a highlight stating the transition inbetween spaces. The other lighting system which is placed inside the frame is active once the door is opened while the wing-lights turn off. This is useful when one enters a dark space and searches for the switch by the door. The space is just lit before you enter. Frame-light may simply be small electric bulbs aligned in the cavity of the door-frame. Frosted glass conceals this cavity. The flexibility is obtained by the possibility to change the color of light, using glass, acrylic or a plexiglass panel at the wing and choosing among a wide variety of other materials for the wing and frame structure and surfaces (wood, aluminium, paint etc.). The sequence of the lighting systems may vary as well depending upon endless desires. Smart-cards are used to lock and unlock the door. The wide frames containing the frame-lights are appropriate for using this system. Door-of-Light would likely be used indoors, mostly at houses and offices of miscellaneous professions and fields.