Industrial Technology Research Institute

Chien-Ping Kung

Chien-Jui Wang

Junejei Huang

Wei-Chung Chao

Dao-Yang Huang

James Lee

Tai Yuan Wang

Lance M Lan

Lin-Lin Chen

A foldable screen display for displaying screen images is disclosed which comprises: (a) at least two sub-displays; (b) a hinging member for pivotally connecting the sub-displays together on a side-by-side manner; (c) a magnifying optical element provided on top of each of the sub-displays, the magnifying optical element providing a magnifying power of between about 1.05 and about 1.3 so as to cause images displayed on the sub-displays to be perceived by a user as if they were from a single display; and (d) a membrane covering both of the sub-displays and the hinging member, the membrane being made of a transparent and resilient material. In a preferred embodiment, the magnifying optical element is a zone plate type magnifying optical element and is constructed to provide a magnifying power approximately equalling to one plus the ratio between the width of the hinging member and the width of sub-display. The foldable screen display provides the advantages of being able to reduce the size of the display without compromising user's desire for maximum viewing comfort; therefore, it is an excellent device for use in making personal digital assistants, electronic books, electronic Rolodex.RTM., pen-based computers, portable TV, etc.

Electronic apparatus with a foldable display

A compound lens system specifically designed for use in a handy scanner of a computer system for photographing a printed object. The compound lens is capable of photographing the printed object up to a width of 128 mm, (5.04 in). The compound lens system encompasses four lenses which include a positive lens with a convex surface and a non-concave surface, two biconcave lenses, and a biconvex lens.

Compound lens system

A constant-speed scanning lens system composed of two lens components. One lens component is a biconcave negative lens having the function of diverging parallel rays. The other lens component is a biconvex positive lens having the function of focusing diverging rays. The constant-speed scanning lens system is of a compact size and has a wider scanning angle than previously attainable.

Constant-speed scanning lens system

Growing community of inventors

Hsin-Chu, Taiwan

Chien-Ping Kung