摘要:
A male terminal is formed on a dust collecting device so as to protrude therefrom, while a plug-in port into which the male terminal can be inserted, and a female terminal that is located inside the plug-in port and can be electrically connected to the male terminal, are provided in a hammer drill. When the dust collecting device is joined to the hammer drill and the male terminal is electrically connected to the female terminal, a driving source is supplied from a battery pack to the dust collecting device.
摘要:
A linear white light source 1 includes a base, a plurality of light emitting diode chips linearly disposed on the base and each generating ultraviolet light having a wavelength of not less than 330 nm nor more than 410 nm, and a phosphor layer continuously formed on the base to cover the plurality of light emitting diode chips and containing a red light emitting phosphor, a green light emitting phosphor, and a blue light emitting phosphor.
摘要:
A light emitting module 1 includes a substrate 2 having a metal pattern 4 and a plurality of white light emitting devices 3 linearly arranged on the substrate 2. The metal pattern 4 is formed on a portion of 60% or more of an area of the substrate 2. The white light emitting device 3 includes a light emitting diode as a semiconductor light emitting element 5. Light emitted from the semiconductor light emitting element 5 is converted into white light by a light emitting section containing phosphors, and is taken out. The light emitting module 1 emits white light.
摘要:
A technique for making a handle vibration-proof while avoiding size increase is provided in an impact tool. The impact tool has a striking mechanism part for driving a tool bit in its axial direction, a motor for driving the striking mechanism part, a tool body housing the motor and striking mechanism part, an outer shell housing covering part of the tool body, a handle that is integrally formed with the outer shell housing and extends transversely to the axial direction, a first handle end portion formed on one extending end of the handle, a second handle end portion formed on the other extending end of the handle, a first elastic element that connects the first handle end portion and tool body for relative movement in the axial direction, and a second elastic element that connects the second handle end portion and tool body for relative movement in the axial direction.
摘要:
A white LED includes a light emitting element with a light emission peak wavelength equal to or longer than 380 nm and equal to or shorter than 420 nm, and a phosphor layer containing three or more types of phosphors including at least a blue phosphor, a green phosphor, and a red phosphor and disposed in a manner to cover at least part of the light emitting element. The phosphor layer has a first phosphor layer and a second phosphor layer disposed in an opposite side of a side of the light emitting element of the first phosphor layer. In the first phosphor layer, a content of the blue phosphor in an entire phosphor contained in the first phosphor layer is equal to or less than 5 mass %, or the blue phosphor is not contained. In the second phosphor layer, a content of phosphor other than the blue phosphor in an entire phosphor contained in the second phosphor layer is equal to or less than 5 mass %, or no phosphor other than the blue phosphor is contained.
摘要:
An impact tool includes a vibration-proofing cushioning material connecting a tool body and a handle. The tool further includes a motor-driving manual operating member disposed on the handle, an operation mode switching member disposed on the tool body, and a movable member. When the switching member is switched to first mode in which the tool bit is continuously driven, the movable member moves the manual operating member from an off position and locks it in an on position. When the switching member is switched to second mode in which the tool bit is arbitrarily driven, the movable member releases the lock of the manual operating member. A vibration-proofing elastic member is disposed in the vibration transmitting path and prevents vibration caused in the tool body from being transmitted to the handle in the state in which the manual operating member is locked in the on position by the movable member.
摘要:
A white LED includes a light emitting element with a light emission peak wavelength equal to or longer than 380 nm and equal to or shorter than 420 nm, and a phosphor layer containing three or more types of phosphors including at least a blue phosphor, a green phosphor, and a red phosphor and disposed in a manner to cover at least part of the light emitting element. The phosphor layer has a first phosphor layer and a second phosphor layer disposed in an opposite side of a side of the light emitting element of the first phosphor layer. In the first phosphor layer, a content of the blue phosphor in an entire phosphor contained in the first phosphor layer is equal to or less than 5 mass %, or the blue phosphor is not contained. In the second phosphor layer, a content of phosphor other than the blue phosphor in an entire phosphor contained in the second phosphor layer is equal to or less than 5 mass %, or no phosphor other than the blue phosphor is contained.
摘要:
Disclosed is a white LED lamp using an ultraviolet light emitting LED, which can simultaneously realize a high level of color rendering and a high level of brightness. Included is an LED chip 2 having a luminescence wavelength between 360 nm and 440nm, and a light emitting part excitable upon exposure to light from the LED chip 2 to emit white light and comprising a phosphor, the phosphor including blue, green, and red light emitting phosphors bonded to each other. A phosphor selected from europium-activated halophosphate phosphors and europium-activated aluminate phosphors is used as the blue light emitting phosphor. A gold- and aluminum-activated zinc sulfide phosphor is used as the green light emitting phosphor. A phosphor selected from europium- and samarium-activated lanthanum oxysulfide phosphors and copper- and manganese-activated zinc sulfide phosphors is used as the red light emitting phosphor.
摘要:
A white light emitting device includes a blue light emitting diode chip that emits blue light in a specific wavelength band, a first resin layer that seals the blue light emitting diode chip and includes a cured product of silicone resin, and a second resin layer that covers the first resin layer and includes phosphor powder, which absorbs the blue light and emits light in a specific wavelength band, and a cured product of transparent resin. The phosphor powder has a composition represented by the following Formula (1): (Sr1-x-yBaxEuy)2SiO4 (1) (in Formula (1), x and y satisfy a condition that 0.05
摘要:
An apparatus includes an original stage configured to hold an original, a substrate stage configured to hold a substrate, an illumination optical system configured to illuminate the original with light from a light source, a projection optical system configured to project light from the original to the substrate to expose the substrate, a detector configured to detect first light from a first reflecting member disposed on the original stage and second light from a second reflecting member disposed on the substrate stage produced by illumination with light, wherein either the first or second light travels forward and backward via the projection optical system, and is detected by the detector, and a processor configured to obtain intensities of the first and the second lights based on an output from the detector, and to calculate transmittance of the projection optical system based on the obtained intensities.