Patent application number | Description | Published |
20110075541 | OPTICAL INFORMATION RECORDING/REPRODUCING OPTICAL SYSTEM AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An optical information recording/reproducing optical system where resin material has Tg>115° C., first, second and third films are on an optical disc side of an objective lens and surfaces of an optical element, respectively, a light source side of the objective lens has a fourth film having four or more layers not containing Ti, each of the first, second and third films includes a non-high refractive index layer made of one of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride or a mixture of at least two of them, each of the first, second and third films is not made of one of Ti, Ta, Hf, Zr, Nb, Mo and Cr, a layer of the fourth film closest to a base material is the non-high refractive index layer. The fourth film satisfies 350<λ | 03-31-2011 |
20110075542 | OPTICAL INFORMATION RECORDING/REPRODUCING OPTICAL SYSTEM AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An optical information recording/reproducing optical system, comprising a light source; an optical element converting a laser beam into a substantially collimated beam; and an objective lens, wherein a wavelength λ (unit: nm) of the laser beam falls within a range of 400<λ<410, the optical element and the objective lens are made of same resin materials or different resin materials having a glass transition temperature of Tg>115° C., each of optical surfaces is configured not to have an optical thin film which contains at least one of or elements of titanium, tantalum, hafnium, zirconium, niobium, molybdenum and chromium, each of optical surfaces of the optical element is provided with an antireflection film made of one of or a mixture of at least two of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride, and a following condition is satisfied. | 03-31-2011 |
20110103217 | OPTICAL INFORMATION RECORDING/REPRODUCING OPTICAL SYSTEM AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS - An objective lens for an optical information recording/reproducing optical system for an optical disc letting a laser beam impinge on a recording layer of the optical disc, and wherein a center wavelength λ (unit: nm) of the laser beam is in a range defined by a condition: 390≦λ≦420, a base material of the objective lens is made of resin, the resin has a glass transition temperature Tg and light transmissivity T (unit: %) per a path length of 3 mm at a wavelength of 406 nm defined by conditions: Tg≧115° C., 85≦T≦90, same antireflection films or different types of antireflection films are respectively formed on optical surfaces of the objective lens, and each of the antireflection films formed on the objective lens has a thickness of 100 nm or more in a vicinity of an optical axis of the objective lens. | 05-05-2011 |
Patent application number | Description | Published |
20090326636 | STENT - It is an object of the present invention to prevent a wire part including a stabilizer hook, a strut or the pulling-back member from separating from a connection part even when a force in a tensile direction is applied to a stent. | 12-31-2009 |
20090326637 | Stent - In a stent which joins a plurality of stent components by a strut, even when the repeated bending acts on the stent for a long period, the breaking of the strut can be prevented. | 12-31-2009 |
20120016459 | Stent - A stent including a plurality of loop stents connected by struts so that it bends uniformly as a whole. | 01-19-2012 |
20120095546 | MARKER AND STENT - A marker formed on a stent which is to be mounted within a human body, the marker being formed without applying gold plating or gold foil onto the stent and allowing the position of the stent in the human body to be confirmed by a recognition means. A marker (A, B) used to confirm the position in a human body of a stent (C) consisting of wires is formed by fitting pipes ( | 04-19-2012 |