Abstract: A camera lens for use in an industrial camera for enabling the industrial camera to calculate the length and height of an object focused by the industrial camera and the distance between the focused object and the industrial camera is disclosed to include a cylindrical lens holder, and a lens, which is fixedly mounted in a mounting portion inside the cylindrical lens holder, having a reference point located on the inner surface thereof at the center and a positioning frame extending from the reference point to the outer surface thereof at an angle about 45°.

Abstract: A combination rack includes a base formed of a front-open box, a flat panel made out of a ferrous plate and covered with a decorative covering and fixedly mounted on the rear side of the top wall of the base in vertical, and different shapes of holder frame members with embedded magnets attachable to the flat panel by means of magnetic attraction for supporting small ornaments.

Abstract: A combination furniture having two downwardly arched parallel base frame bars with locating notches each at the top, two crossbars transversely fastened to the base frame bars with respective locating notches thereof respectively engaged with the locating notches of the base frame bars, two upwardly arched parallel support frame bars respectively supported on the base frame bars, a plate member supported on the support frame bars to serve as a seat plate or bedplate, and four rectangular connecting blocks connected between the support frame bars and the base frame bars, each rectangular connecting block having a straight top coupling groove respectively coupled to the support frame bars and a crossed bottom coupling groove respectively coupled to the intersection between each base frame bar and the each crossbar.