Abstract:
A clear image can be achieved by preventing dusts from collecting in grooves formed in a transparent substrate and by improving contrast as well. A film is provided in such a manner as to cover a light reflection pattern formed in the surface of the transparent substrate. The film is sealingly fixed to the transparent substrate for preventing dusts from entering the light reflection pattern (particularly the grooves) during the process of assembling the spread illuminating apparatus. Also, the surface of the transparent substrate can be protected from scratches thanks to the film fixed. The amount of interface reflection can be reduced by using resin or the like as the film material, and contrast can be improved by setting the thickness of the film to a value smaller than prescribed.
Abstract:
This invention provides a magnetic optical member that can obtain a large magneto-optical effect using a rare-earth-iron-garnet-based material and a method of producing the same. According to the present invention, a BiYIG thin film (207) is formed on a (SiO2/Ta2O5)n layer (210), and heat-treatment for crystallization of the BiYIG thin film (207) is carried out with infrared rays while cooling a non-heat-resisting substrate (203) and the (SiO2/Ta2O5)n layer (210) through a substrate holder (201). Since the non-heat-resisting substrate (203) is cooled and the deformation thereof is prevented, heat treatment to crystallize the BiYIG thin film (207) can be carried out. By the crystallization of the BiYIG thin film (207) a large magneto-optical effect can be obtained. The non-heat-resisting substrate (203) is cooled, and can be made of a thermoplastic resin or can be formed in a tape shape, film shape or sheet shape. Thus, easy handling of the substrate and downsizing can be realized. Further, it is not necessary to make the substrate of glass, making it easy to form a groove. By the cooling of the (SiO2/Ta2O5)n layer (210) the interdiffusion of Ta2O5 and SiO2 is prevented and heat treatment for crystallization can be performed.
Abstract translation:本发明提供一种使用稀土 - 铁 - 石榴石材料获得大的磁光效应的磁性光学元件及其制造方法。 根据本发明,在(SiO 2 / Ta 2 O 5)n层(210)上形成BiYIG薄膜(207),并且在冷却时用红外线进行BiYIG薄膜(207)的结晶热处理 通过衬底保持器(201)的非耐热衬底(203)和(SiO 2 / Ta 2 O 5)n层(210)。 由于非耐热基板(203)被冷却并且其变形被阻止,所以可以进行热处理以使BiYIG薄膜(207)结晶。 通过BiYIG薄膜(207)的结晶,可以获得大的磁光效应。 非耐热衬底(203)被冷却,并且可以由热塑性树脂制成,或者可以形成为带状,膜形或片状。 因此,可以实现基板的容易处理和小型化。 此外,不需要制造玻璃基板,从而容易形成凹槽。 通过(SiO 2 / Ta 2 O 5)n层(210)的冷却,可以防止Ta2O5和SiO2的相互扩散,并且可以进行结晶热处理。
Abstract:
An optical displacement sensor in an external-force detecting device comprises a light source, an optical sensor, and a light reflecting means. The light source and the optical sensor are disposed at an action section of the device adapted to receive an external force, and the light reflecting means is disposed at a support section of the device adapted to support the action section via elastic spoke sections, and light emitted from the light source is reflected at the light reflecting means and received at the optical sensor whereby displacement of the action section relative to the support section is detected for calculation of an external force applied.