Identification Sign:
A sign giving the name of the business for purposes of identification.
Illuminated Sign:
A sign which is lighted by either an internal electrical source or external flood lights.
Incidental Sign:
Signs, usually smaller in size and of a noncommercial nature that appear in almost every location the public might be found. Examples of incidental signs include hours of operation, location of rest rooms, and entrance and exit signs.
Incised:
Decorated by cutting into or indenting the surface of a material. Incised letters are carved or engraved into surface of stone, wood, plastic, or sandblasted into glass or stone.
Inflatable:
Plastic or fabric signage that assumes a three-dimensional shape when filled with air under pressure or with helium gas. A temporary sign that is often seen as part of a special promotion.
Ink:
The mixture of colored pigments in a suitable liquid used for screen-printing or digital printing. Inks are typically either water-based or solvent-based, and their selection is based primarily on the substrate to be printed. They form a solid surface after either curing or drying.
Ink-Receptive:
Describes a substrate that can be made wet by ink when printed and that will bond with the ink after drying or curing.
Inscribe:
To write, print, carve, or engrave (words or letters) on or in a surface. To mark or engrave (a surface) with words or letters.
Insert:
See blank.
International Symbol of Accessibility (ISA):
The international symbol of accessibility is used primarily to communicate wheelchair-accessible routes and entrances.
Interactive:
Of or relating to a two-way electronic or communications system in which response is direct and continual. Interactive displays incorporate a touch screen, buttons or switches, or a keyboard to generate a signal that activates an information display. Also used to describe non technical activity, as when an exhibit user's action is rewarded with a reaction from the exhibit.
Internally Illuminated:
A sign that is lighted through the use of internal electric fixtures or lamp banks. See also back-lighted sign.
Interpretive Sign or kiosk:
A sign that provides permanent cultural or historic information in addition to building or site identification.
ISA:
See international symbol of accessibility.
