摘要:
A color filter comprising a transparent substrate and two or more multilayer films of amorphous silicon materials deposited on said substrate, each film being different, each layer of said two or more multi-layer films having a thickness less than the wavelength of the visible light and at least three layers of said two or more multi-layer films of amorphous silicon materials in an alternate arrangement wherein the amorphous silicon materials are selected from a-SiOx and a-SiNx is described. A method of preparing the color filter comprising depositing on the substrate by PECVD method two or more multilayer films is also described. The color filters prepared by PECVD method have a more compact texture and a better environmental resistant. The PECVD method for the preparation of the filters is more efficient than conventional methods.
摘要:
This invention discloses a projection screen including a diffusion layer, a cap layer, an interference layer and an absorption layer. The projection screen of this invention is based on the concept of inverse reflection. The interference filter includes a plurality of high and low refractive index layers, both of which alternately stacked. The projection screen conveys a small spectral shift and a narrow bandwidth at different incident angles so that the better contract ratio of the image signal can be displayed.
摘要:
The invention provides a prism assembly and method for forming an air gap thereof. At least one recess is formed on one surface of a conjunction portion of two prisms. The recess is located at a region having a predetermined distance with respect to an edge of the prisms. An adhesive with spacer disposed between the recess and the edge of the prisms is used to adhere the prisms each other to form the air gap therebetween.
摘要:
A thin-film multilayer system for use in a head-up display is provided, which comprises: A substrate; a plurality of dielectric layers having a high refractive index sequentially formed on the substrate; and a plurality of dielectric layers having a low refractive index formed alternately with the plurality of dielectric layers having a high refractive index. The thickness and ingredient of each of the plurality of dielectric layers having a high refractive index and the plurality of dielectric layers having a low refractive index are determined according to interference theory for all-dielectric thin-film multilayers to make the thin-film multilayer system able to polarize light and to display images in true color. Further, the ingredients of the thin-film multilayer system are dielectric materials that can endure wear and tear, chemicals, and environmental injuries. The thin-film multilayer system can be directly formed on the windshield of a vehicle, otherwise it can be formed on a substrate made of glass or plastic, and then adhered to the windshield.
摘要:
A traffic signal device having a single, continuously-illuminating lamp and several plain reflectors constructed by optical thin film technique to receive the light beam projected from the lamp and respectively reflecting light components of pre-determined wavelengths to display differently-colored traffic signals. Also, is a lamp detection system which monitors and detects the operation of the lamp and generates a signal to actuate the lamp interchanging mechanism to automatically replace the lamp with a spare lamp once the lamp malfunctions.
摘要:
An optical prism assembly. The optical prism assembly includes an isosceles triangular prism and a plurality of prism blocks. The isosceles triangular prism comprises a base angle, between 30° and 45°. A first prism block and a second prism block are connected to two bounding surfaces of the isosceles triangular prism having equal lengths. A third prism block is connected between the first prism block and the second prism block. A first dichroic filter and a second dichroic filter are formed on the isosceles triangular prism and two adjacent bounding surfaces of each prism blocks, such that the isosceles triangular prism is combined with each prism block to form a first filter continuous plane and a second filter continuous plane.
摘要:
A composite optical film with a low refractive index mainly comprises calcium fluoride (CaF.sub.2), and silicon dioxide (SiO.sub.2) mixed with a specific composition ratio. The composite optical film is formed on a quartz substrate. The composite film is formed by using a coater, which accommodates two individual e-gun sources inside a cylindrical chamber. Oxygen is bled into the chamber. A heating process and plasma formation are performed to assist the process of forming the composite film. Additionally, a laser reflection lenses comprises an optical film with high refractive index and an optical film with low refractive index, which are alternately laminated onto a quartz glass substrate. The optical film with low refractive index uses a composite optical film mainly comprising calcium fluoride (CaF.sub.2) and silicon dioxide (SiO.sub.2) mixed with a fixed composition ratio.
摘要:
A liquid crystal display device having TiO.sub.2 --SiO.sub.2 composite layers used as undercoat and overcoat is provided. The TiO.sub.2 --SiO.sub.2 composite layers serving as the undercoat and overcoat of transparent conductive electrodes are formed by a low temperature ion-assisted electron gun evaporation or sputtering process, wherein the TiO.sub.2 --SiO.sub.2 composite materials can also be used as hard layers to protect the surfaces of transparent plastic substrates. These TiO.sub.2 --SiO.sub.2 composite layers have superior insulation, a high degree of hardness and smoothness. Consequently, the advantages of the TiO.sub.2 --SiO.sub.2 composite layer are as follows: (1) the out diffusion of impurities (sodium ions) can be prevented from soda lime glass into liquid crystal to destroy the property of the liquid crystal; (2) short circuit caused by impurities having the same size as the gap between the electrodes can also be prevented; (3) the TiO.sub.2 --SiO.sub.2 layer can be used as a hard layer to protect the surface of the plastic substrate from scratching damage; and (4) the TiO.sub.2 --SiO.sub.2 layer can be used as an isolating layer to prevent the plastic substrate from releasing water and gas stored thereinside and causing poor adhesion to the transparent conductive layer formed thereon.
摘要:
This invention discloses a projection screen including a diffusion layer, a cap layer, an interference layer and an absorption layer. The projection screen of this invention is based on the concept of inverse reflection. The interference filter includes a plurality of high and low refractive index layers, both of which alternately stacked. The projection screen conveys a small spectral shift and a narrow bandwidth at different incident angles so that the better contract ratio of the image signal can be displayed.
摘要:
A color separation prism assembly. The color separation prism assembly includes a polarizing beam splitter and a plurality of prism blocks. The polarizing beam splitter is coated with a polarizing beam splitter coating on a diagonal plane thereof. A first filter and a second filter, each corresponding to a specific color band, are respectively formed on two adjacent bounding surfaces of the polarizing beam splitter. A first prism block and a second prism block are connected to the polarizing beam splitter through the first filter and the second filter, respectively. The second prism block is a rectangular prism with a third filter formed on a base surface thereof. A third prism block is connected to the rectangular prism through the third filter. An angle formed by an inclined side of the rectangular prism and the base surface of the third filter is no more than 30°.