摘要:
It is an object of the present invention to provide an optical pickup astigmatism adjusting method capable of easily correcting an astigmatism even if the spot shape of a light beam converged on an optical disc is not a true circle. An optical pickup astigmatism adjusting system of the present invention finds an inter-focal distance L0 between a focal position where a light beam is converged in RAD direction and another focal position where a light beam is converged in TAN direction, and a further inter-focal distance L45 between a focal position where a light beam is converged in a direction inclined 45 degrees from RAD direction and another focal position where a light beam is converged in a direction inclined 45 degrees from TAN direction, thereby measuring an astigmatism in accordance with the inter-focal distances L0 and L45. Then, an installation angle of a reflection mirror is adjusted in accordance with the inter-focal distances L0 and L45, thus correcting the astigmatism.
摘要:
It is an object of the present invention to adjust the focus position of an optical pickup. A brightness measuring apparatus having a half mirror and an objective lens focusing on the half mirror is disposed at a position facing an optical pickup PUi, in a manner such that the objective lens OB of the optical pickup PUi faces the half mirror. Then, the optical pickup PUi is operated to start a focus servo, while the position of multi-lens provided in the optical pickup PUi is changed continuously, thereby measuring a highest brightness of a spot light image incident on the half mirror through the objective lens, by virtue of the brightness measuring apparatus. Subsequently, a highest brightness change caused by changing the position of the multi-lens ML is inspected so as to fix the multi-lens ML at a position when the maximum highest brightness has been obtained, thereby effecting an optimum focus position adjustment for an optical pickup.
摘要:
A trialkylsilane-based silicon precursor compound may be expressed by Si(Ri)X, i=1-3, where each of “R1”, “R2”, and “R3” is a hydrogen or an alkyl having 1-5 carbon(s), all of “R1”, “R2”, and “R3” are not hydrogen, “X” is one of hydrogen, a hydroxyl group, an amide group, an alkoxide group, a halide group, or Si(R*)3, and “R*” is a hydrogen or an alkyl group having 1˜5 carbon(s).
摘要:
The present invention provides a novel organic compound having a high quantum yield and a high color purity. Provided is an organic compound represented by Formula (1) described in Claim 1. In Formula (1), R1 to R20 are each independently selected from hydrogen atoms, halogen atoms, substituted or unsubstituted alkyl groups, substituted or unsubstituted alkoxy groups, substituted or unsubstituted amino groups, substituted or unsubstituted aryl groups, substituted or unsubstituted heterocyclic groups, substituted or unsubstituted aryloxy groups, substituted or unsubstituted thiol groups, silyl groups, and cyano groups.
摘要:
An image processing apparatus is configured to generate a combined image by combining a plurality of photographed images. The image processing apparatus includes an acquisition unit configured to acquire the plurality of photographed images from a photographing unit, and a setting unit configured to designate, if misshooting or reshooting of a first photographed image of the plurality of photographed images is designated, misshooting or reshooting of a second photographed image of the plurality of photographed images.
摘要:
Provided is an acenaphtho[1,2-k]benzo[e]acephenanthrene derivative represented by general formula (1): wherein R1 to R16 are each independently selected from a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group; and at least one of R1 to R8 and R10 to R15 is selected from a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group.
摘要翻译:提供由通式(1)表示的苊并[1,2-k]苯并[e]苯并菲衍生物:其中R 1至R 16各自独立地选自氢原子,卤素原子,取代或未取代的烷基, 取代或未取代的烷氧基,取代或未取代的氨基,取代或未取代的芳基和取代或未取代的杂环基; R 1至R 8和R 10至R 15中的至少一个选自卤素原子,取代或未取代的烷基,取代或未取代的烷氧基,取代或未取代的氨基,取代或未取代的芳基和取代的 或未取代的杂环基。
摘要:
The present invention provides a novel stable organic compound and also provides an organic light-emitting device having a high luminous efficiency and a low driving voltage. The present invention relates to a spiro compound represented by the following Formula [1]: wherein, R1 to R5 are each independently selected from hydrogen atoms and alkyl groups having 1 to 4 carbon atoms and may be the same or different; and X is any of a sulfur atom, an oxygen atom, and a carbon atom, and when X is a carbon atom, the carbon atom may have one or two alkyl groups having 1 to 4 carbon atoms, and when the carbon atom has two alkyl groups having 1 to 4 carbon atoms, the two alkyl groups may be the same or different.
摘要:
A benzopyrene compound represented by a general formula [1] below, where one of X1 and X2 represents a substituted or unsubstituted aryl group; another one of X1 and X2 represents a hydrogen atom; R represents an alkyl group; and n represents 0 or 1.
摘要:
Provided is an organic light emitting device having high emission efficiency and a low driving voltage. The organic light emitting device includes an anode, a cathode, and an organic compound layer disposed between the anode and the cathode, in which the organic compound layer includes a fused polycyclic compound represented by any one of the following general formulae [1] to [4].
摘要:
A light-emitting layer emits light having an emission spectrum having a primary peak in the range of wavelengths of 430 to 480 nm. The light-emitting layer contains a host compound and a dopant compound. The dopant compound has an electron affinity of 2.93 eV or more higher that is than the host compound. The dopant compound in the lowest excited triplet state has an energy of 1.95 eV or less that is lower than the host compound in the lowest excited triplet state. The dopant compound has a smaller band gap than the host compound. The dopant compound is a hydrocarbon compound.