摘要:
PROBLEMAn object of the present invention is to easily and inexpensively manufacture an array-type photo module and, in addition, coexist high-density array and low crosstalk.SOLUTIONThe present invention provides an array-type photo module M including a filter 31, which, in each channel, transmits therethrough a portion of emitting light from an incident optical fiber 11 on the opposite side of a gradient-index lens array 2 and reflects another portion of the emitting light from the incident optical fiber 11 toward the gradient-index lens array 2, and a light-shielding member 32 (33) which is arranged on the opposite side of the gradient-index lens array 2 of the filter 31 so as to be spaced from the filter 31 and, in each channel, has an opening 34 (35) passing therethrough transmitted light from the filter 31 on the opposite side of the filter 31.
摘要:
The present invention provides an array-type photo module including a filter, which, in each channel, transmits therethrough a portion of emitted light from an incident optical fiber on the opposite side of a gradient-index lens array and reflects another portion of the emitted light from the incident optical fiber toward the gradient-index lens array, and a light-shielding member which is arranged on the opposite side of the filter from the gradient-index lens array, so as to be spaced from the filter and, in each channel, has an opening passing therethrough transmitted light from the filter on the opposite side of the filter. The array-type photo module is easily and inexpensively manufactured, and may be used in a high-density array, with low crosstalk.
摘要:
The photo module is provided with an incident light fiber guiding light, a gradient index lens having an optical axis different from the incident light fiber, having a period length larger than a ¼ period length and smaller than a ½ period length with respect to the wavelength of the incident light, joined to the incident light fiber on a surface forming a finite angle with a surface vertical to the optical axis, and having, as a light exit surface of emitting light, a surface substantially vertical to the optical axis, and a light receiving element disposed at a position where the emitting light is collected and measuring the strength of the emitting light.
摘要:
A photo module which measures a signal strength in a transmission path, and this technique collects a signal light, guided to a photo module, on a light receiving element without increasing the number of manufacturing processes and the cost and, at the same time, prevents reflected light returned from the photo module from entering inside the transmission path again.The photo module is provided with an incident light fiber guiding incident light, a gradient index lens having an optical axis different from the incident light fiber, having a period length larger than a ¼ period length and smaller than a ½ period length with respect to the wavelength of the incident light, joined to the incident light fiber on a surface forming a finite angle with a surface vertical to the optical axis, and having, as a light exit surface of emitting light, a surface substantially vertical to the optical axis, and a light receiving element disposed at a position where the emitting light is collected and measuring the strength of the emitting light.
摘要:
An object of the invention, in the formation of a thin film on a synthetic resin, is to improve adhesiveness between the synthetic resin and the thin film by a relatively simple method. In the invention, a protective metallic layer is formed on a synthetic resin, and one thin film of (1) a semi-transmitting metallic mirror, (2) a total reflection metallic mirror, or (3) a transparent conductive film is formed. The material of the protective metallic layer is preferably selected from the group of Ti, Zr, Nb, Si, In, and Sn, and for sake of ensuring adhesiveness between the synthetic resin and the thin film, the film thickness of the protective metal layer is preferably 1 nm or more. Also, when the film thickness of the protective metallic layer is large, transmittance of the whole of the laminated film is lowered due to light absorption by the protective metallic layer, and hence, the film thickness of the protective metallic layer is preferably not more than 5 nm.
摘要:
A surface of a glass plate is coated with a first n-type semiconductor film which is a 50 nm-thick niobium oxide film as a primer layer. The primer layer is coated with a 250 nm-thick photocatalyst film comprising titanium oxide. Thus, an article having a photocatalytically active surface is obtained. The two coating films can be formed by sputtering. The first n-type semiconductor film as the primer layer is selected so as to have a larger energy band gap than the titanium oxide. Due to this constitution, more holes are generated near the film surface. This article can be free from the problem of conventional titanium oxide films having photocatalytic activity that it is difficult to generate many surface holes contributing to photocatalytic activity, because electrons and holes generated by charge separation recombine within the film, making it impossible to effectively heighten catalytic activity.
摘要:
The prevent invention improves the film thickness distribution in the direction of revolution of substrates by a simple manner in a method for forming coating films, wherein a evaporating source 3 is disposed at a predetermined distance from substrates 2, and when a coating film material is applied from the evaporating source 3 onto the substrate surfaces while revolving the substrates 2, coating films are formed on the substrate surfaces in a condition where the radius of curvature of the substrates 2 obtained by bending the substrates 2 within the elasticity range is made equal to the radius of revolution of the substrates 2.
摘要:
A plasma CVD method and the device for generating an arc discharging plasma, together with introducing both a material gas and a reactive gas into a vacuum chamber; coating a substrate with a thin film which contains a material gas component and a reactive gas component, said plasma CVD method comprising the steps of: introducing said material gas into a position between the arc discharging plasma and the substrate; and introducing said reactive gas into a space opposite, relative to the arc discharging plasma, to a side whereinto the material gas is introduced.
摘要:
Fine coal particles are recovered from a slurry of finely divided coal by mixing coarsely divided coal and a binder together to cause the binder to adhere to the surfaces of the coarsely divided coal pieces, mixing the slurry with the coal pieces having the binder adhered thereto to cause fine coal particles to adhere to the binder over the surfaces of the coal pieces serving as nuclei and thereby form agglomerates, and separating the agglomerates from the remaining slurry portion to recover the fine coal particles along with the coarsely divided coal and the binder.
摘要:
The polarizer of the invention has the following constitution: On a transparent substrate having a plurality of linear prismatic structures formed thereon to be parallel to each other, a plurality of tabular members parallel to each other are formed at a predetermined angle to the substrate surface. One edge of the tabular member is in contact with the substrate along the ridge direction of the linear prismatic structure. In the invention, the thin film structure has a transparent film that covers the tabular member on the side thereof opposite to that in contact with the substrate. Preferably, the dielectric film has a one- to four-layered structure.