Glossary

ABS

Acrylonitrile Butadiene Styrene is a commen general purpose plastic.

ACETATE

Cellulose Acetate is a plastic that is available in polished optical sheet. Products made from this material should not be used for extremely high temperature applications.

ANSI

American National Standard practice for occupational and educational eye and face protection.

ANTI-FOG

A coating on a window that prevents fogging or misting in a wide range of temperatures and conditions.

BUMP CAP

A light-weight cap that does not meet the test requirements of a Hard Cap or Hard Hat.

CAM-LOCK

The fastener on a protective device that attaches the window.

CAP BRACKET

A device that allows the mounting of a window to Hard Cap.

CHIN PROTECTOR

That portion of a device that offers protection to a wearer's lower face, chin and neck.

COVER LENS

An expendable pane of clear material to protect a window from damage.

COVER PLATE

The outer expendable cover lens for a welding helmet or goggle.

CROWN

That portion of a device that offers protection to a wearer's forehead. This device provides the attachment points for a replaceable window. Also know as a Spark Guard.

DARK GREEN

ANSI Z87.1 defines dark green as window color transmitting visible light at 14% + -4%.

DIE CUT

A fabrication process that cuts parts from sheets of plastic or other materials.

DIELECTRIC

A nonconductor of electrical current.

EFUV

Effective Far-ultraviolet Average Transmittance of optical radiation with wavelengths from 200 to 315 nanometers weighted by its ability to damage the cornea.

FACESHIELD

A protector commonly intended to, when used in conjuntion with spectacles and/or other goggles, shield the wearer's face, or portions thereof, in addition to the eyes, from certain hazards, depending on faceshield type.

FLAT

Refers to the shape of the window. A flat window must be wrapped around the spark guard and will not provide the fit of a formed window.

FORMED

Refers to the shape of the window. A formed window conforms to the shape of the spark quard or other attachement and is considered superior in fit, feel and function.

GOGGLE

A protective intended to fit the face surrounding the eyes in order to shield the eyes from certain hazards, depending on goggle type.

HARD CAP

A safety helmet that has a brim which extends around the helmet.

HDPE

High Density Polyethylene is a material used in opaque general purpose components.

HEADGEAR / ADAPTER

That part of a helmet, hood or faceshield thats supports the device on the wearer's head.

INFRARED RADIATION (IR)

As reference in the ANSI Z87.1 standard, electromagnetic energy with wavelengths from 780-2000 nanometers.

INJECTION MOLDED

A fabricated process that produces products by filling a mold with molten plastic at high pressure.

LENS

The transparent part of a protector through which the wearer sees, also referred to as a plate or window for some device.

LIGHT

Optical radiation weighted by its ability to cause visual sensations.

LUMINOUS TRANSMITTANCE

The fraction of light (380-780 nm) passing through a medium.

MEDIUM GREEN

ANSI Z78.1 defines green as a window color transmitting visible light at 23% +-4%.

METALIZED

A coating on the front of a window that is designed to reflect UV, IR and reduce visible light.

NANOMETER (NM)

A unit of measure of wavelength equal to one billionth of a meter; 10-9 meter.

NEAR-ULTRAVIOLET AVERAGE TRANSMITTANCE

Transmittance of optical radiation with wavelengths from 315 to 380 nm.

NOT WARRANTED SHATTERPROOF

A warning statement that applies to all face and eye protective devices. This statement notes this potential for any face and eye protection.

OPTICAL RADIATION

As related to ANSI Z78.1 standard, that optical portion of the electromagnetic spectrum ranging in wavelengths from 200 nm to 2000 nm.

PDS

Product Data Sheet. This is a one page full description and specification of each product available from Paulson Manufacturing Corporation.

PETG

Polyethylene Terephthalate Glycol Comonomer. This plastic is used for disposable, short term use windows.

PIANO LENS

A lens that does not incorporate a corrective prescription; this lens is not necessarily flat.

PRIMARY PROTECTION

A device such as safety spectacles or goggles, which may be worn alone or in conjunction with a secondary protector. (See secondary protector)

POLYCARBONATE

An optical grade plastic available in injection molding grade and optical sheet plastic. This material is characterized by toughness, heat resistance and optical quality.

PROPIONATE

Cellulose Propionate is a plastic used for injection molded optical windows that is used to high performace applications.

RADIANT HEAT

See infrared radiation.

SAFETY / COVER PLATE

A lens that can be used interchangeably as a cover plate or a safety plate in welding applications.

SECONDARY PROTECTION

A device which shall be worn only in conjunction with a primary protector. Faceshields are classified as secondary protection.

SHADE 3

ANSI Z78.1 defines shade 3 as a lens that meets specific UV, IR and visible light requirement. The visible light requirement is a maximum of 18%, and a minimum of 8,5%. Also refered to as W3.

SHADE 5

ANSI Z78.1 defines shade 5 as a lens that meets specific UV, IR and visible light requirement. The visible light requirement is a maximum of 3,16%, and a minimum of 1,18%. Also refered to as W5.

SPARK GUARD

The portion of a headgear that offers protection to a wearer's forehead. Also known as a crown protector.

ULTRAVIOLET RADIATION (UV)

As referenced in the ANSI Z87.1 standards, electromagnetic energy with wavelengths from 200 to 380 nanometers.

VISIBLE LIGHT

The fraction of light (380-780 nanometers) passing through a lens. ANSI Z78.1 describes visible light as luminous transmittance.

WELDING FACESHIELD

A faceshield intended for limited welding application.

WELDING GOGGLE

A goggle intended for limites welding application.

WINDOW

The lens portion of a faceshield (see "lens")