Other

Chung Shan Institute of Science and Technology

Chung-shan Institute of Science and Technology, Armaments Bureau, M.n.d

Wen-Chen Huang

Yi-Yuh Hwang

Chin-Der Hwang

Shin-I Ma

Mau-Ran Wang

Ming Chen

Guang-Sheen Liu

An image invariant optical speckle capturing device and method. A highly coherent light is used to illuminate a surface and is scattered by the surface, and is captured from the direction with a &#xb1;10&#xb0; from the angle of specular reflection. A light restrictive module is designed to confine the angular field of view of the sensor, when the speckle capturing device has a relative motion with respect to the surface, the speckle only move on the image but the shape and the intensity are almost keep constant, that is favorable for high accuracy optical pattern recognition and positioning.

Image invariant optical speckle capturing device and method

The present invention relates to a large area undistorted imaging apparatus for light speckles and a method thereof. The large area undistorted imaging apparatus for light speckles comprises a light-emitting device, a light-limiting module, and a sensor. The light-limiting module is adapted in front of the sensor, and includes a plurality of light-limiting members. The light-limiting members are arranged in a one- or two-dimensional array. When the light-emitting device emits light to an object surface, one or more rays of scattered light are produced. By means of the light-limiting module, said one or more rays of scattered light are limited, and a plurality of rays of diffraction light is produced. The plurality of rays of diffraction light within a certain angular field of view produced by a light-limiting member interferes with each other and produces a plurality of undistorted light speckles, and forms an array of light-speckle images on the sensor. Finally, according to the array of light-speckle images, a large-area and undistorted light-speckle pattern is given. Because the light-speckle pattern is undistorted and records the three-dimensional characteristics of the object surface, the undistorted imaging apparatus can be applied to computer mice, finger guiders, smart cards, three-dimensional fingerprint identification apparatuses, a machine tool or precise manipulator positioning systems.

Large areas undistorted imaging apparatus for light speckles and method thereof

A safety bicycle saddle flashing light device including: a saddle mounted on the seat pillar of a bicycle, which saddle having a protective outer covering, a rigid inside covering disposed inside the protective outer covering, a foamed lining fastened to the protective outer covering on the inside and disposed between the protective outer covering and the rigid inside covering, and flash light disposed at a rear side outside the saddle; a control switch disposed inside the saddle, which control switch will be triggered to drive the flash light, when a person sits on said saddle, causing the flash light to flash at a low frequency; a DC power supply unit electrically connected to the flash light through the control switch; and a quick-flash starter mounted on the rear brake system of the bicycle and controlled to drive the flash light, when the rear brake cable of the rear brake of the bicycle is pulled up, causing it to flash at a high frequency.

Safety bicycle saddle flashing light device

A bicycle saddle includes a protective outer covering, a rigid inside covering disposed inside the protective outer covering, a foamed lining disposed between the protective outer covering and the rigid inside covering, a flash light disposed at a rear side outside the saddle, a control switch disposed inside the saddle, and a DC power supply unit electrically connected to the flash light through the control switch, and wherein when the rider sits on the saddle the control switch is switched on by the pressure of the rider causing the flash light to give an audio flash signal.

Structure of bicycle saddle

The present invention concerns a two-person sleeping bag formed by two single sleeping bags each mainly comprises an outer panel made from moisture-proof cloth, and a warm lining disposed inside the outer panel. The edge portion of the outer panel is provided with an outer zipper and an inner zipper parallel to each other; one side of the top end of the outer panel is equipped with a pilow case with a horizontal zipper; the center line of the outer panel has a stitch line. The inner lower end of the outer panel has two lateral zippers, which can close and open both sides of that lower end to insert two soft pads, respectively. A mattress is placed on the warm lining of the outer case, and then a lining panel is placed on the mattress. The edge of the lining panel is provided with a zipper to be fastened together with an outer zipper attached around the edge of the outer panel. The pillow case of the outer panel may receive a pillow pad. In turning over and superimposing one unfolded single sleeping bag on another one and then making the outer zippers thereof match with each other, the two-person sleeping bag is formed.

Growing community of inventors

Taipei, Taiwan

Wen-Chen Huang