A composite board comprises a wood board (11) attached to a reinforcing plate (12,13) which comprises fiber-reinforced thermoplastic resin. The long continuous fibers of the thermoplastic resin are arranged in a single direction, and make up between 40% and 80% by weight of the resin. The use of a thermoplastic resin avoids the disadvantages inherent in the prior use of a thermosetting resin.

The invention is concerned with an eyeglasses leg mount on which spring-loaded devices are active enabling the leg opening to occur elastically beyond an overcenter position, and enabling the leg (1) to be closed with a snap action, the spring-loaded devices comprising a leaf spring (17) pivotally inserted into a pocket (2) formed in the eyeglasses leg (1)and acting with its free end onto a mushroom head (8) made rigid with the eyeglasses frame (10), and shaped to provide two stable opened-closed positions for the leg (1), resilient extra opened positions and an opening travel limit stop therefor.

A method for processing a pair of spectacles having a metal sheet wrapping the surface of an acetate sheet comprises the following steps: step 1, cutting a 4.0 acetate sheet; step 2, softening the cut acetate sheet through baking, and tapping a steel needle into the acetate sheet; step 3, cutting out grooves in the two sides of the acetate sheet, and clamping metal fittings on the acetate sheet; step 4, mounting an upper die and a lower die on a 15-ton hydraulic press; step 5, clamping a metal material in the grooves formed in the acetate sheet, sleeving the metal material and the acetate sheet in a middle pressing die, and heating the metal material and the acetate sheet sleeved by the middle pressing die in an oven; step 6, baking the acetate sheet in a sealed oven; step 7, after the acetate sheet is completely softened, sleeving the acetate sheet and the middle pressing die in the lower die of the hydraulic press, and directly pressing the acetate sheet through the hydraulic press with an adjusted pressure of 1 ton; step 8, taking out the acetate sheet, and grinding an excess acetate sheet material and metal material on the surface of the acetate sheet to be flush through a waterproof abrasive paper machine; and step 9, after pressing the metal material in the acetate sheet, performing subsequent spectacle processing procedures according to a traditional method so as to fabricate a finished spectacle product.

The invention is related to a method of manufacturing of a composite substrate comprising an embedded electronic device by forming in a first substrate a cavity for receiving the electronic device; disposing the electronic device between the first substrate and a second substrate in said cavity; providing a solvent of cellulose acetate in-between the first substrate and the second substrate, maintaining the first substrate and the second substrate in contact together, wherein the electronic device is maintained between the first substrate and the second substrate, forming the composite substrate.

The present invention relates to a composite thermoplastic plastic plate material for glasses, a decorative component comprising the composite thermoplastic plastic plate material and a preparation process therefor. In particular, during the preparation of the plate material, when the thermoplastic plate material is bound, a high frequency welding machine is used. The present invention uses a high frequency welding machine for the instant welding of the thermoplastic plastic plate material; good binding strength exists between different plate materials; and the patterns of the intermediate layer are intact, and have high-definition images, and the patterns are located on the intermediate layer, not affected by external environment factors, and are not easily abraded. Further, the many faces of the glasses component have patterns, increasing the beautiful appearance of the glasses component, and meeting the requirements of customers to the largest extent.