| Patent application number | Description | Published |
|---|
| 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 |
| 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 |
| 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 |
| 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 |
| 20090109833 | PRINTABLE OPTICAL DISC AND MANUFACTURING METHOD THEREOF - A printable optical disc including an optical disc body, a waterproof protective film, and a first patterned layer is provided. The optical disc body has a printable surface. The waterproof protective film has an upper surface and a lower surface. The lower surface is disposed on the printable surface, and the upper surface has an optical grating pattern or a pixel pattern. The first patterned layer is disposed between the lower surface of the waterproof protective film and the printable surface. | 04-30-2009 |
| 20090321275 | MICRO FLOW DEVICE AND METHOD FOR GENERATING A FLUID WITH PH GRADIENT - A micro flow device and a method for generating a fluid with pH gradient are provided. The micro flow device includes a first and second substrates, an ion exchange membrane, and at least an electrode unit. The second substrate having a second flow path is disposed corresponding to the first substrate that has a first flow path. The ion exchange membrane is disposed between the first substrate and the second substrate to separate an electrolyte solution inside the first and second flow paths. The electrode unit includes at least two electrodes disposed in the first and second flow paths respectively. When the pair of electrodes is driven to electrolyze the electrolyte solution, the ion exchange membrane retards the mixing of an anode product and a cathode product produced by electrolyzing the electrolyte solution, such that a liquid having pH gradient is generated inside the first and second flow paths. | 12-31-2009 |
| 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 |
| 20100155230 | Method of Fabricating Bubble-Type Micro-Pump - A manufacturing method of a bubble-type micro-pump is provided. At least a bubble-generating unit is provided on the bubble-generating section. Because of the varied surface energies on the top of the bubble-generating section, the varied backfilling velocities of the fluid of the front end and the rear end cause fluid moving when a bubble vanishes. The top surface of the bubble-generating section is subjected to a particular surface treatment to form a surface energy gradient. Examples of surface treatment include sputtering a thin film with varied densities or thickness, radiating one or multi-layer thin films by a laser beam, etc. | 06-24-2010 |
