Patent application number | Description | Published |
20090040620 | DISK STRUCTURE, MANUFACTURING METHOD THEREOF AND OPTICAL TWEEZERS DEVICE USING THE SAME - A disk structure is disposed in an optical tweezers device including a light source for producing incident laser light. The disk structure includes a first substrate, a second substrate and a reflective layer. The second substrate is disposed with respect to the first substrate. One of the first substrate and the second substrate has at least one flow path. The reflective layer, which is adhered to the second substrate, is disposed between the first substrate and the second substrate. After the incident laser light passes through the first substrate and then reaches the reflective layer, the incident laser light is reflected back as reflective laser light by the reflective layer to form reflective laser light. A tweezers light field is formed in the flow path by both the reflective laser light and the incident laser light. | 02-12-2009 |
20090097119 | DIFFRACTION MICRO FLOW STRUCTURE AND OPTICAL TWEEZERS USING THE SAME - A diffraction micro flow structure and optical tweezers using the same are provided. The diffraction micro flow structure comprises a substrate and a diffraction part. The substrate comprises at least a flow path. The diffraction part is disposed on the substrate. The diffraction part comprises a diffraction optical element. After light passes through the diffraction optical element, the light is focused in the flow path and forms an optical field. | 04-16-2009 |
20090272180 | CONTINUOUS TESTING DEVICE AND CONTINUOUS TESTING SYSTEM - A continuous testing device for testing the concentration of a target object in a fluid is provided. The continuous testing device includes a first chip, a signal source and a second chip. The first chip includes a separating unit and a reacting unit. The separating unit separates the target object from a non-target object in the fluid. The reacting unit enables the fluid having separated out the non-target object to react with a reagent. The signal source provides a signal passing through the fluid having reacted with the reagent. The second chip disposed at one side of the first chip includes a signal transducing element and a processing unit. The signal transducing element receives the signal passing through the fluid and outputs an electronic signal corresponding to the input signal. The processing unit acquires the concentration of the target object according to the electronic signal. | 11-05-2009 |
20090273831 | LIGHT MODULE, OPTICAL TWEEZERS GENERATOR AND DARK FIELD MICROSCOPE - A light module is provided. The light module applied to a dark field microscope is used for illuminating an object. The light module includes a light beam, a reflection component and a condensing component. The light beam has several lights. The reflection component is used for converting the lights radiating along a beginning direction to a circular beam substantially radiating along the beginning direction. The circular beam passes through the condensing component and is focused on the object. A part of the circular beam passing through the condensing component is scattered by the object. | 11-05-2009 |
20100108872 | Optical tweezers lifting apparatus - An optical tweezers lifting apparatus is provided. The optical tweezers lifting apparatus includes an optical tweezers and a particle-lifting device. The particle-lifting device includes a substrate and a plurality of electrodes that are disposed on the bottom of a flow path in the substrate. When a dielectrophoresis (DEP) solution with a plurality of floating particles is conducted into the flow path and upon those electrodes and a voltage is applied to these electrodes, these particles would be driven by a negative DEP force to move upward to a specific depth in the flow path. Meanwhile, the optical tweezers of the apparatus is selectively focused at the specific depth in the flow path. | 05-06-2010 |
20110032217 | OPTICAL TOUCH APPARATUS - The invention provides an optical touch apparatus. The optical touch apparatus includes at least one optical path unit and at least one light sensing unit. The at least one optical path unit is located on a first side of a display unit of the optical touch apparatus and used to receive at least one directional incident light, the at least one directional incident light is focused to form an image in an imaging region through at least one refraction in the at least one optical path unit. The at least one light sensing unit is located at a relative position of the at least one optical path unit, and used to generate a sensing result according to the image in the imaging region. | 02-10-2011 |
20110203354 | Continuous Testing Method - A continuous testing method for testing the concentration of a target object in a fluid is provided. The method comprises the following steps. A focused light is provided in the fluid to separate the target object from a non-target object in the fluid by changing the movement direction of the target object and the non-target object. The fluid having separated out the non-target object is enabled to react with a reagent. A signal is provided to pass through the fluid having reacted with the reagent. The signal passing through the fluid is received and an electronic signal is outputted corresponding to the input signal. The concentration of the target object is acquired according to the electronic signal. | 08-25-2011 |
20120043209 | MICROFLUIDIC CONTROL APPARATUS AND OPERATING METHOD THEREOF - A microfluidic control apparatus and operating method thereof. The microfluidic control apparatus includes a photoconductive material layer and a flow passage. When a light with a specific optical pattern is emitted toward the photoconductive material layer, at least three virtual electrodes are formed on the photoconductive material layer according to the specific optical pattern. The at least three virtual electrodes include a first virtual electrode, a second virtual electrode and a third virtual electrode disposed beside the first virtual electrode. There is a specific proportion among a distance between first virtual electrode and third virtual electrode, a width of first virtual electrode, a distance between first virtual electrode and second virtual electrode, and a width of second virtual electrode. When the specific optical pattern changes, the at least three virtual electrodes also change to generate an electro-osmotic force to control the moving state of a microfluid in a flow passage. | 02-23-2012 |
20140034499 | MICROFLUIDIC CONTROL APPARATUS AND OPERATING METHOD THEREOF - A microfluidic control apparatus operating method is disclosed. The microfluidic control apparatus operating method is applied in a microfluidic control apparatus, and the microfluidic control apparatus includes a photoconductive material layer and a flow passage. The microfluidic control apparatus operating method includes steps of (a) when a light with a specific optical pattern is emitted toward the photoconductive material layer, at least three virtual electrodes being formed on the photoconductive material layer according to the specific optical pattern; (b) when the specific optical pattern changes, the at least three virtual electrodes also changing to generate an electro-osmotic force to control a moving state of a microfluid in the flow passage. | 02-06-2014 |
Patent application number | Description | Published |
20080302664 | Apparatus for driving fluid - An apparatus for driving a fluid includes a substrate, at least one electrode group and a controlling unit. The substrate has at least one plane. The electrode group is disposed on the substrate and includes a first electrode, a second electrode and a third electrode. A projecting position of the second electrode on the plane is disposed between that of the first electrode and that of the third electrode. The controlling unit electrically connected to electrode group is for driving the first to third electrodes. When the controlling unit drives the first to third electrodes to make the first and third electrodes have opposite polarities and to make the second and third electrodes have the same polarity, an electric field produced by the electrode group enables the fluid on the substrate to flow from the first electrode to the third electrode. | 12-11-2008 |
20090032692 | Apparatus of generating an optical tweezers with momentum and method thereof and photo-image for guiding particles - An apparatus of generating an optical tweezers with momentum and method thereof and an optical tweezers photo-image for guiding particles are provided. The apparatus generates at least one optical tweezers on an examined object that carries at least one particle. The apparatus includes a laser source, a diffractive optical element and a convergent lens. The laser beam from the laser source passes through the diffractive optical element to produce a diffractive pattern. The laser beam is then received by the convergent lens and then to be focused on a plane of the examined object. The optic axis of the convergent lens is substantially not perpendicular to the plane of the examined object, so that the laser beam is projected onto the plane of the examined object in a skewed manner for providing a lateral momentum to move the particle. | 02-05-2009 |
20090051999 | Optical tweezers controlling device - An optical tweezers controlling device including a light source, an objective lens and a focus adjusting unit is provided. The focus adjusting unit disposed between the light source and the objective lens includes a mirror set and a zoom lens set. The mirror set has at least a mirror. The mirror is rotatable such that after a light of the light source is projected to the mirror, the reflective direction of the light reflected from the mirror is changeable. The zoom lens set has at least a zoom lens disposed in accordance with the mirror. By rotating the mirror or changing the focal length of the zoom lens, the focusing location of the light changes on the focal plane of the objective lens or in the front or the rear of the focal plane. | 02-26-2009 |
20090052038 | Apparatus and method for changing optical tweezers - An apparatus and a method for changing optical tweezers are provided. The apparatus includes a diffractive optical element (DOE), a mask unit and an objective lens. The DOE includes a plurality of phase delay patterns. The mask unit includes a plurality of mask patterns that correspond to the phase delay patterns, respectively, wherein at least a portion of the mask patterns are complementary. A laser beam passing through each phase diffractive pattern correspondingly passes through each mask pattern to generate a compound diffractive pattern. The objective lens receives the compound diffractive pattern and focuses it on an examining object to form an optical tweezers. | 02-26-2009 |