摘要:
A device for adaptable wavelength conversion and a device for energy conversion are described. The device for adaptable wavelength conversion comprises at least one layer comprising a wavelength converting material and arranged to receive and re-emit a light beam. The device is further arranged to manipulate the at least one layer to operate in a closed state, in which a surface of the at least one layer is substantially covered with the wavelength converting material and to operate in an open state, in which the surface of the at least one layer is substantially uncovered with the wavelength converting material. The device for adaptable wavelength conversion can be applied in combination with a solar cell or photovoltaic cell thereby enabling the solar cell to receive radiation having a suitable spectrum under varying lighting conditions.
摘要:
An apparatus, system, and method for emission filter. A filter apparatus is presented. In one embodiment, the filter apparatus may be adapted for fluorescence spectroscopy. In a particular embodiment, the filter apparatus comprises a solution. The solution may include a polar protic solvent and an absorbing specimen. Additionally, the filter apparatus may include an adhesive to conform the solution into a solid filter.
摘要:
A production process of a light amount adjustment member, by which a light amount adjustment member that can sufficiently satisfy optical properties can be economically produced at low production cost and high yield by a simple operation is provided. In addition, a wide variety of light amount adjustment devices and photographing apparatus equipped with a light amount adjustment member are cheaply provided while achieving satisfactory optical properties. The production process of the light amount adjustment member comprises the step of applying a coloring liquid containing a coloring material to a transparent base material using a liquid jet recording process to form a light amount adjustment region having a particular optical density.
摘要:
An embodiment is a display unit. The display unit includes a substrate layer, a layer of colored fluid on the substrate layer, and a transparent actuator element on the layer of the colored fluid. The layer of colored fluid has a thickness and a color. The transparent actuator element modulates the thickness of the colored fluid upon activated by a force such that the colored fluid is changed from a first state to a second state or vice versa. The modulated thickness provides a variable optical density of the colored fluid.
摘要:
A volume-absorbing laser beam dump encloses a solution comprising a laser-absorbing solute diluted in a solvent that is non-absorbent of the laser energy. The laser beam dump includes a window to admit a laser beam into the solution. As the laser beam travels through the solution, the diluted solute absorbs the laser energy.
摘要:
A light-filtering element for a display device is provided. The element includes at least one filter having a chamber with a filtering fluid, the filtering fluid selectively disposed in an optical path, and a liquid motion actuator selectively configured to move the filtering fluid substantially into and out of the optical path.
摘要:
A fluid-containing lens filter (20) for modifying images in photographic, video and motion picture cameras in the form of a filter housing (22) that consists of a front plate (24), a back plate (26) with a bottom edge (28) and a pair of opposed side edges (30). The edges are juxtaposed between the front plate (24) and the back plate (26), leaving a void therebetween. The bottom edge (28) and side edges (30) are bonded to the front and back forming a fluid-tight chamber (36) within the filter housing. A fluid (38), having light modifying qualities, is disposed within the chamber (36) such that color, translucency, and clarity are altered to create a supplementary visual effect on an image viewed by the camera. Various types of fluids may be used in the filter, affecting the image by means of color pigment (40), particles (42), chemical reactions (48) and myriad different combinations thereof. In addition, particles within the fluids may be illuminated by light sources (54) directed to the edges. Since the fluid-tight chamber may accept any reasonable fluid, the utility has limitless possibilities.
摘要:
The invention relates to a projection display device having an illumination system comprising a light source and an optical system for providing an illumination beam. The projection display device is further provided with an image display system for modulating the illumination beam with image information and projecting an image on a screen. In order to filter ultra-violet and infra-red radiation from the light source, a filter means is present which transmit visible light. Cooling means comprising a cooling liquid are present for cooling the filter means. In the projection display device the filter means comprises the cooling liquid which contains a radiation-absorbent additive for absorbing the ultra-violet and infra-red radiation.
摘要:
Electromagnetic radiation valves are provided. In one system, a transparent, elastomeric article is provided having a contoured surface including protrusions and intervening indentations. The contoured surface is placed adjacent a transparent plate and a void pattern defined by indentations of the contoured surface is filled with an opaque fluid. The protrusions decrease in cross-sectional area in the direction in which they extend away from the bulk of the elastomeric article, thus compression of the elastomeric protrusions against the transparent plate results in an increase in surface area in elastomeric protrusions against the transparent plate due to deformation of the protrusions, and the opaque fluid is displaced from the voids. Increased transmission of the electromagnetic radiation results. In another system, a similar elastomeric article includes an array of corner cubes that are totally internally reflective of the electromagnetic radiation. Increased deformation of the protrusions of the transparent plate results in decreased total internal reflection of light, due to the progressive destruction of the corner-cube geometry, and the passage of light is increased with compression.
摘要:
A filter for absorbing electromagnetic radiation which is used in heating a welding zone wherein a first part is joined to a second part. The filter includes a filter housing which contains a chamber within which a fluid is placed. The fluid absorbs undesired wavelengths of radiation from a heating source before the radiation reaches the welding zone. A heat exchanger may be connected to the filter in order to cool the fluid during the filtering process.