Abstract:
A method of manufacturing micro-structure elements by utilizing molding glass includes the steps of forming a mold having a micro-structure pattern thereon by using an electroforming process, making a copy of the micro-structuring pattern on a glass structure by using glass molding technology, and filling clothing material on the glass substrate to form a micro-structure element with less complex and cost, thereby being suitable for mass production.
Abstract:
This specification discloses a planar optical waveguide DWDM (Dense Wavelength Division Multiplexer), which is an integrated DWDM made by using the planar optical waveguide manufacturing technology. A diffractive grating is used in a planar optical path to direct beams of different wavelengths in a beam into different directions. An arrayed waveguide installed at the output end of the planar optical path couples the beams of different wavelengths to an optical fiber connected at the output end, separating the waves. On the other hand, a preferred embodiment of the invention has an arrayed lens between the diffractive grating and the arrayed waveguide. The arrayed lens can correct the deviated diffractive beams due to thermal deformation of the diffractive grating and conduct them into the arrayed waveguide.
Abstract:
An adjustable lighting device for use in an adjustable ambient lighting system is proposed, which includes a reflection element having at least a reflection portion and an opening, a light emitting unit disposed in the reflection element so as to provide light to be reflected by the reflection portion, and a diffusion element for sealing the opening so as to receive and disperse the light reflected by the reflection portion, thereby enabling efficient adjustment of the color of light sources, uniform scattering of the light to the surroundings, and creation of various lighting scenarios.
Abstract:
An anti-counterfeit method and system by using a nano metal grating, wherein an object to be recognized is formed with the nano metal grating. During the recognition process, an incidental light is applied on the metal grating. In response to the incidental light, the metal grating has its specific optical incidence and reflection characteristics. The object is then identified whether it is genuine or fake by observing the refraction light passing through and reflection light reflected from the metal grating. Further, the incident light beam can be polarized to generate polarized light beams and then irradiated on the metal grating, whereafter the recognition of the object is performed by observing the reflection and refraction lights of the irradiated polarized light beam. The recognition further can be accomplished by rotating the metal grating, thus the intensity of the refraction and reflection lights will accordingly be changed, thereby identifying the object.
Abstract:
An apparatus for forming a nano grating device to film nano-scale interference fringes by holography in order to makes a nano-scale meshed structure is disclosed. A beam emitted form a light source passes subsequently through a beam splitter and two reflectors to reach at symmetrically mounted light emitting modules. The light emitting modules generate two beams passing along the same optical paths and then projecting on a photosensitive substrate that is attached on a hemi-sphere lens. Thus, a first set of interference fringes are formed. Then, the substrate rotates with an angle and then is subjected to exposure to form a second set of interference fringes crossing the first set of interference fringes. Thereby, a nano-scale meshed structure is obtained.
Abstract:
A grating interference device with adjustable resolution has high stability and precision adjustment functions. The invention has two reflectors and a beam splitter. One of the reflector is installed on a rotating axis along with an optic fiber or a platform of planar waveguide. Through the rotating axis, this reflector and the platform are maintained at a fixed relative angle and rotate with respect to the other reflector and the beam splitter. The period of the interference grating is controlled by the angle change, producing a grating with a micrometer-order period on the optic fiber or the planar waveguide.
Abstract:
A diffractive anti-counterfeiting tag structure with capabilities of naked-eye inspection and machine inspection and its method of manufacture. The anti-counterfeiting tag structure has a naked-eye inspection component and a machine inspection non-grating diffractive component. The naked-eye inspection component and the non-grating diffractive component are formed on separate mold-boards and then joined together to form a mold-board using a board-joining technique. Alternatively, a plurality of naked-eye inspection blocks and a plurality of non-grating diffractive blocks are randomly mixed together to form a pixel-like diffractive anti-counterfeiting tag.
Abstract:
Direct backlight modules using diffraction optical elements are provided. A direct backlight module includes a light source and a diffraction optical element, wherein the diffraction optical element is disposed above the light source. By properly arranging the phase function, the diffraction optical element can substantially modulate the wavefront of the light emitted from the light source and control light distribution as well as light direction.
Abstract:
A micro fluorescent electrophoresis (EP) detection system for detecting fluorescent EP is disclosed. The size of the system is greatly minimized for carrying. The invention uses a laser diode with a cylindrical lens to perform light source detection. A probe is provided to receive excited light produced by the probed object and to convert it into an electronic signal for detection. This does not only lower the cost, but also largely reduce its size for the patient's convenience of carrying and self-testing.
Abstract:
A tunable filter and its manufacturing method are disclosed. Interference of two laser beams defines the grating pattern required by the filter to make a micro grating with a period as small as several hundred nanometers on a polymer film. As the refractive index of the polymer film changes with the temperature, one can control the temperature to adjust the wavelengths of optical signals that the micro grating can reflect.