Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 nm?L2?L1?50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.

Abstract: An adapter for a portable hand drill which facilitates the quick and easy installation of elbow insert fittings into flexible hoses of a sprinkler or irrigation system. The adapter can be easily inserted and locked into the portable hand drill, and then the head section of the adapter is formed with the shape of an elbow insert fitting, where the trigger mechanism of the hand drill is depressed and the torque power of the hand drill rotates the head section of the adapter which in turn causes the elbow insert fitting to rotate about its turning axis to thereby insert into the flexible hose. The adapter can be used with an extension for facilitating and speeding up the installation of straight insert fittings and T-shaped insert fittings. The extension has a hexagonal shaped shaft section and a retaining section. The retaining section is installed within the adapter while the hexagonal shaped shaft section extends outwardly from the adapter.

Abstract: A rope cleat includes a rectangular plastic bottom plate and a nesting sheet steel top plate. Bolt holes in the corners of the plates allow bolts to retain the plates together and to mount the cleat onto a mounting surface. A pair of cam spindles and back-to-back rope abutments, integral to the bottom plate, protrude through matching cam spindle openings and rope abutment openings in the top plate.The edge of each cam spindle opening is rounded upward into a cam spindle boss to support the cam spindle. A cam, with rope gripping teeth on its rise, rotates on each cam spindle, is retained thereon by a washer and self tapping screw, and is biased by a C-shaped leaf spring.The front of each rope abutment also has rope gripping teeth. The back of each rope abutment is reinforced by a boss, bent upward from the top plate to leave the rope abutment opening. Each boss is strengthened by a vertical crimp, the apex of which supports and is supported by the apex of the crimp in the other boss.