Measurement Device with Graduated Markings and Light-Transmitting Slits

A measurement device comprising:

• a housing;
• a measuring tape blade;
• a first measuring element;
• a second measuring element;
• an illumination source;
• and
• a lock tab;
• wherein said measuring tape blade is configured to be coiled inside said housing;
• wherein said housing comprising an opening for selectively extending said measuring tape blade therefrom;
• wherein an extended length of said measuring tape blade is lockable to prevent further extension and retraction using said lock tab disposed on a top end of said housing;
• wherein said measuring tape blade comprising a flexible metallic strip;
• wherein said flexible metallic strip comprising a top surface;
• wherein said first measuring element comprising a plurality of graduated markings corresponding to linear units of length;
• wherein said top surface comprising a protective transparent covering overlaying said top surface;
• wherein said measuring tape blade comprising a free end with a hook for pulling and extending said measuring tape blade from said housing;
• wherein said second measuring element comprising a plurality of light-transmitting slits spaced along a length of said measuring tape blade;
• and
• further wherein said illumination source is projected perpendicularly across said measuring tape blade to pass through one light-transmitting slit of said plurality of light-transmitting slits for indicating said second measuring element and is aligned with at least one graduated marking of said plurality of graduated markings for indicating said first measuring element.

A method of using a dual measurement device, the method comprising the steps of:

• providing a housing, a measuring tape blade with a plurality of graduated markings, a first measuring element, a second measuring element, an illumination source, and a lock tab;
• coiling said measuring tape blade inside said housing for storing said measuring tape blade, wherein said housing comprising an opening for selectively extending said measuring tape blade therefrom;
• extending a length of said measuring tape blade outward from said housing across a work surface;
• locking an extended said length of said measuring tape blade to prevent further extension and retraction using said lock tab disposed on a top end of said housing;
• orienting and said measuring tape blade within a path of said illumination source;
• and
• projecting said illumination source perpendicularly across said measuring tape blade to pass through one light-transmitting slit of a plurality of light-transmitting slits for indicating said second measuring element.