51results about How to "Lighter component" patented technology

An illumination device includes a lamp housing component, a main bone disposed inside the lamp housing component, and at least one light emitting component. The light emitting component has a heat sink member and a light emitting member. The heat sink member is locked on the main bone, and the light emitting member is disposed on the lamp housing component and contacts the heat sink member. According to the demand for luminance, the number of light emitting components is optionally increased or decreased on the main bone, or the main bone inside the lamp housing component is replaced by an extended main bone, so as to increase the number of light emitting components.

An optical element of the invention comprises at least three laminated circular-polarization-type-reflection polarizers (a) whose wavelength bands for selective reflection of polarized light overlap one another; a layer (b1) which is placed between at least a pair of the circular-polarization-type-reflection polarizers (a) and has a front retardation of substantially zero (in the normal direction) and a retardation of at least λ / 8 with respect to incident light inclined by at least 30° relative to the normal direction; and a layer (b2) which is placed between at least another pair of the circular-polarization-type-reflection polarizers (a) and has a front retardation of substantially zero (in the normal direction) and a retardation of at most μ / 2 with respect to incident light inclined by 60° relative to the normal direction. The optical element condenses or collimates incident light from a light source and can control transmission of light at large incident angles relative to the normal direction, increase front brightness and reduce coloration.

A defect inspection apparatus for inspecting a defect of a substrate as an object to be inspected comprises an illumination optical system for illuminating the substrate, a receiving optical system for receiving diffracted light from the substrate and a polarizing element provided in either one of the illumination optical system or the receiving optical system.

To realize a configuration in which only light having an unnecessary wavelength is cut so that light having a necessary wavelength may be obtained efficiently, a filter layer that selectively reflects light having a particular wavelength and a phosphor layer containing a phosphor that is excited with the light having the particular wavelength to emit light are provided. Thus, the light reflected by the filter layer is converted into light having a different wavelength by the phosphor layer so as to pass through the filter layer. The filter layer is placed between a display element and a light source of an illuminating device, and the filter layer that selectively reflects a light component to be absorbed by the display element is used, whereby the light component to be absorbed by the display element is converted by the phosphor layer so as to pass through the display element. Accordingly, the illuminating device and a display device having very high luminance efficiency and color reproducibility may be realized.

A multi-part piston for an internal combustion engine has an upper piston part having a piston crown, and a lower piston part having pin boss supports and pin bosses connected with them. The upper piston part and lower piston part each have an inner and an outer support element, which delimit an outer circumferential cooling channel. The inner support elements delimit a cavity that is open toward the pin bosses, and the cavity is provided with a separate cooling oil collector that has at least one cooling oil opening. In a method for producing a piston, the upper and lower piston parts are manufactured, the cooling oil collector is inserted into one of the upper and lower piston parts in a region of the cavity, and the upper and lower piston parts are connected together at their support elements.

According to research, it found that blue light may cause significant effects on suppressing melatonin. For this reason, a lighting device capable of reducing the phenomenon of melatonin suppression is disclosed in the present invention, the lighting device comprises: a light-emitting device being able to emit a visible light; and a light-filtering device being close to the light-emitting device, wherein when the light-emitting device emits the visible light, the light-filtering device is able to filter a blue light component of the visible light, so as to reduce the blue light component within the visible light emitted by the light-emitting device, then the effects on suppressing the melatonin caused by the visible light are reduced.

A white light source includes an ultraviolet-visible excitation light generation unit capable of generating visible light and ultraviolet light, and a fluorescence generation unit having a phosphor layer and being capable of generating visible light upon excitation by the ultraviolet light and uses, in the phosphor layer, a red light emitting phosphor represented by the following compositional formula: (Ca1-a-bSraEub)S:Mc, wherein a, b and c satisfy the following conditions: 0<=a<1.0, 0<=b<0.1 and 0<=c<=0.1; and M is a dopant element having absorption of excitation energy at about 350 nm to about 500 nm. The dopant element M includes rare earth elements such as Ce, Yb, Gd and Tm. By substituting part of Ca and / or Sr with Zn, the white light source can exhibit further improved performances. The white light source exhibits an increased red light component as compared with light emitted from conventional (Y1-a-bGdaCeb)3(Al1-cGac)5O12 green light phosphors and is suitably used in display apparatus.

In a method of forming a holographic grating, a photoresist layer is formed on an optical substrate, and a resist pattern is formed in the photoresist layer to have grooves depth deeper than a predetermined depth of diffraction grating grooves to be formed. Then, the photoresist layer with the resist pattern is etched by an ion beam generated by a mixed gas containing a fluorine based gas and oxygen until the resist pattern is substantially completely disappears. Thus, the diffraction grating grooves having the predetermined depth are directly engraved on the optical glass plate.

Improving the visibility of the dark portion and to prevent the degradation of image quality caused by excessive correction. A reflectance calculation unit is storing a parameter RGain for adjusting the amplitude of a reflectance component R. An illumination light correction unit generates a corrected illumination light component L1 from an illumination light component L and a formula L1=(log(LAmp*L+1)) / (log(LAmp+1)). An image resynthesis unit obtains a corrected illumination light component L′ from L′=LGain*L1 +(1−LGain)*L. The image resynthesis unit also calculates a corrected image Tout from the corrected illumination light component L′ and the corrected reflectance R′, as well as from a formula Iout=exp(log L′+RGain(log I−log L)). The value of the corrected illumination light component (L′) is determined based on the ratio (LGain) at which the output value of the correction function (L1) and the original illumination light component (L) are combined.

A multi-part piston for an internal combustion engine has an upper piston part having a piston crown, and a lower piston part. The lower piston part has pin boss supports and pin bosses connected with them and the upper piston part and the lower piston part each have an inner and an outer support element, which elements delimit an outer circumferential cooling channel. The inner support elements delimit a cavity that is open toward the pin bosses. The cavity has a separate cooling oil collector that has at least one cooling oil opening. The piston is produced by manufacturing the upper piston part and lower piston part, inserting the cooling oil collector into the upper piston part or lower piston part, and joining the upper and lower piston parts together by friction welding.

Disclosed herein is a light emitting device, which includes a light emitting element configured to emit a light, and a concave mirror portion configured to reflect the light emitted from the light emitting element, the concave mirror portion being erected on a circumference of an emission surface of the light emitting element. The concave mirror portion has a light reflecting surface obtained by rotating a part of a parabola. A central axis of the rotation is set in a position of passing through a side of the parabola with respect to a middle point of a line segment joining the part of the parabola and a focal point of the parabola.

An artificial illumination device for generating natural light similar to that from the sun and the sky includes a direct-light source; and a diffused-light generator, wherein the direct-light source includes a first light-emitting device configured to emit a primary light, and a first emitting surface positioned downstream the first light-emitting device, wherein the diffused-light generator is at least partially light-transparent and is positioned downstream of the first light-emitting device and includes a second emitting surface and is configured to cause diffused light at the second emitting surface. Both co-operate to form outer light at an outer emitting surface which includes a first light component which propagates along directions contained within the narrow peak and a second light component which propagates along directions spaced apart from the narrow peak, and wherein the first light component has a CCT which is lower than a CCT of the second light component.

An image processing device includes: a luminance saturation position detection unit which detects a luminance saturation position to produce a light source image; a flare model production unit which produces a flare model image based on the light source image and optical characteristics data of the optical system; a flare position setting unit which sets, as a flare position, a predetermined image position in the captured image and located near the luminance saturation position and on a side of an optical axis relative to the luminance saturation position; a flare model luminance adjustment unit which produces the estimated flare image by adjusting luminance gain of the flare model image, based on a relationship between a luminance value of the captured image at the flare position and a luminance value of the flare model image at the flare position; and an unnecessary light subtraction unit which subtracts the estimated flare image from the captured image.

An illumination device for synthesizing light from an object at virtually infinite distance comprises a primary light source configured to emit a primary light, a concentrator positioned downstream the primary light source and configured to reduce the divergence of the primary light, an emitting surface positioned downstream the concentrator, and an absorber made of light-absorbing material positioned upstream the emitting surface and configured to absorb light rays which cross the emitting surface in an upstream direction and which, in the absence of the absorber would not be directed toward the primary light source, wherein the primary light source, the concentrator, the emitting surface and the absorber are configured so that they produces from the primary light an output light that exits the emitting surface with a luminance profile which is spatially uniform across the emitting surface, and has a narrow peak in the polar-angle distribution around an output-light direction.

A multi-part piston for an internal combustion engine has an upper piston part with a piston crown, and a lower piston part with pin boss supports and pin bosses connected with the pin boss supports. The upper piston part and the lower piston part each have an inner and an outer support element, which elements delimit an outer circumferential cooling channel. The inner support elements delimit a cavity that is open toward the pin bosses. The cavity is provided with a separate cooling oil collector that has at least one cooling oil opening.

A resin composition including 30 to 90% by mass of polyamide (A), 70 to 10% by mass of glass fibers (B), a copper compound (C) and a halogenated compound (D), wherein polyamide (A) has a sum of a terminal carboxyl group concentration and a terminal amino group concentration of 100 milliequivalents / kg or more and 200 milliequivalents / kg or less, the terminal carboxyl group concentration being higher than the terminal amino group concentration; glass fibers (B) have a fiber diameter of 10 to 20 μm and a weight average fiber length of 5 to 30 mm; the content of copper based on polyamide (A) is 30 ppm or more and 200 ppm or less; and the molar ratio of halogen to copper (halogen / copper) is more than 5 and not more than 25.

An optical access network system capable of transmitting and receiving high-speed signals and which allows the number of subscribers to be increased without increasing the number of wavelengths used is provided. An optical line terminal and an optical network unit are joined via an optical fiber transmitting line, a star coupler, and a plurality of branching optical fiber transmitting lines. The optical line terminal and optical network unit are constituted comprising an optical processing section and an electrical processing section. The optical processing section comprises a light-emitting element and a light-receiving element. The electrical processing section comprises a transmitting signal processing section that generates an encoded transmitting signal in the form of an electrical signal by encoding a transmitting signal and a receiving signal processing section that obtains a receiving signal by decoding a code-division-multiplexed signal that has been converted from optical-signal form to electrical-signal form by the light-receiving element. The optical access network system is characterized in that the decoding processing circuit that the receiving signal processing section comprises is constituted comprising an analog matched filter and a decision circuit.

An optical semiconductor light emitting device which emits white light, includes: an optical semiconductor light emitting element; and an optical conversion layer containing phosphor particles, in which a specific light scattering composition is contained in the optical conversion layer or a light scattering layer containing a specific light scattering composition is provided on the optical conversion layer. An illumination apparatus and a display apparatus including the same are also provided.

The image processing method includes a luminance value information obtaining step of obtaining effective radiance values from a subject, and an image generating step of generating a picture image as a set of unit regions each of which has a luminance value obtained by at least partially removing a regular reflection light component on a surface of the subject from the effective radiance values.

An optical disk device is provided that can realize favorable recording / reproduction of signals on / from an optical disk having a plurality of signal planes arranged in proximity to each other. In this optical disk device, a hologram (4) is divided into n(n≧2) regions Ak(k=1, 2, . . . , n) by a straight line that intersects with an optical axis, and a photodetector (7) is divided into at least two regions A and A′. Light emitted from a light source (1) is focused on a signal plane (6a) or (6b) included in a plurality of signal planes of the optical disk by an objective lens (5). Light reflected from a first signal plane (6a) and light reflected from a second signal plane (6b) pass through the objective lens (5) to turn into light beams a and a′, respectively, that enter the hologram (4). 1st-order diffracted light beams ak and ak′ having a common diffraction optical axis are derived from the light beams a and a′ that have entered the regions Ak of the hologram (4), respectively, and are projected on the photodetector (7). Distributions of the 1st-order diffracted light beams ak and ak′ on the photodetector (7) are approximately inverted with respect to an intersection point of the diffraction optical axis and a detection plane. The 1st-order diffracted light beam ak is approximately within the region A and the 1st-order diffracted light beam ak′ is approximately within the region A′.

Disclosed herein is a light emitting device, which includes a light emitting element configured to emit a light, and a concave mirror portion configured to reflect the light emitted from the light emitting element, the concave mirror portion being erected on a circumference of an emission surface of the light emitting element. The concave mirror portion has a light reflecting surface obtained by rotating a part of a parabola. A central axis of the rotation is set in a position of passing through a side of the parabola with respect to a middle point of a line segment joining the part of the parabola and a focal point of the parabola.

A method and apparatus to perform laser ablation in the vicinity of a charged particle beam while simultaneously protecting the light optical components of the apparatus utilized to perform the ablation from being coated with debris resulting from the ablation process. According to preferred embodiments of the present invention, a protective transparent screen is used to shield the laser optical components. A preferred screen could be replaced or repositioned without breaking vacuum in the sample chamber and would not be particularly susceptible to undesirable charging effects.

In some embodiments, a method, system, or computer-readable storage device including instructions for reducing the blue light component of displayed video can include one or more of the following features: receiving, at a set-top box, a video signal having a white color balance, the white color balance including a red component value. The set-top box can determine that the current time is after a threshold night value and before a threshold morning value and, based on that, adjust the white color balance of the video signal to increase the red component value. The set-top box can then transmit the video signal with the adjusted white color balance to a display device.