摘要:
A power supply boost control device and a fault location identification and judgment method for the power supply boost control device of this invention comprise a step of judging whether a power supply relay has a turn-on fault, a precharge circuit has a turn-on fault, or the power supply relay has a turn-on fault; second judgment unit is comprised for judging whether a boosting prohibit function is faulty, or the precharge circuit has a turn-off fault, or the precharge circuit has a turn-off fault; and third judgment unit is comprised for judging, based on the judgment result of the first voltage judgment unit, whether or not the power supply relay has a turn-off fault.
摘要:
An electromagnetic absorber formed of conductive fiber or the like, such as carbon fiber having an overall length corresponding to the wavelength of electromagnetic waves to be absorbed, is mixed into a base material to form an electromagnetic wave-absorbing pavement material. The electromagnetic wave-absorbing pavement material is used to form a pavement having an electromagnetic wave absorbing course. Further, an electromagnetic wave reflecting course is disposed under the electromagnetic wave absorbing course, and the electric length of the electromagnetic wave reflecting course is set to a predetermined value in relation to the dielectric constant so that electromagnetic waves reflecting off the surface of the electromagnetic wave absorbing course and electromagnetic waves reflecting off the electromagnetic wave reflecting course have opposite phases and thereby cancel each other out, whereby the electromagnetic waves are absorbed well.
摘要:
The malfunction of a vibrator as a drawback of a conventional independent vibrator type portable terminal is obviated. A communication system of a portable communication terminal comprises a portable communication terminal capable of movably communicating with another communication terminal via radio communication with a base station, and peripheral equipment which performs a predetermined operation via radio communication with the portable communication terminal. The portable communication terminal transmits a radio signal to the peripheral equipment by using a time division multiplex access system for exchanging signals by putting data on a time slot as the radio communication between the portable communication terminal and the peripheral equipment and using the time slot in a time zone excluding other time zones in which the portable communication terminal is transmitting a radio signal to the base station. Thus the radio wave transmitted from the portable communication terminal to the peripheral equipment is prevented from being jammed by the radio wave transmitted from the portable communication terminal to the base station.
摘要:
Provided is a light-emitting device that has a high emission efficiency, excellent stability and temperature properties, and that generates light having a high color rendering property sufficient for practical use. This semiconductor light-emitting device (1) comprises a semiconductor light-emitting element (2) that emits blue light, a green phosphor (14) that absorbs the blue light and emits green light, and an orange phosphor (13) that absorbs the blue light and emits orange light, and is characterized in that the orange phosphor is an Eu-activated α-SiAlON phosphor having an emission spectrum peak wavelength within a range of 595 to 620 nm.
摘要:
A light source unit includes a light source, a light source support to hold the light source, a fixing member which is attached to the light source support and includes a through-hole through which beams of light emitted from the light source pass, a lens holder inserted into the through-hole and attached to the fixing member by an adhesive; and a collimating lens to collimate the beams of light from the light source, wherein attachment surfaces of the adhesive for the lens holder has a tilted attachment surface tilted relative to the optical axis of the collimating lens.
摘要:
Provided is a light emitting device with effectively improved color rendering properties. A light emitting device 1 includes: a light source 2 that emits light having the maximum intensity at a predetermined wavelength; a first phosphor (yellow phosphor) 51 that absorbs the light emitted by the light source 2 and outputs fluorescent light having the maximum intensity at a first wavelength which is longer than the predetermined wavelength; and a second phosphor (red phosphor) 52 that absorbs the light emitted by the light source 2 and outputs fluorescent light having the maximum intensity at a second wavelength which is longer than the first wavelength. An absolute value of wavelength dependency of an optical absorption rate of the second phosphor 52 at the first wavelength is set to not more than 0.6%/nm. Accordingly, the color rendering properties of the light emitted by the light emitting device 1 can be effectively improved.
摘要:
A light guide member for an object detection apparatus for detecting an object adhered on a light translucent member based on change of quantity of reflection light received from the light translucent member includes a detection face where light exits to the light translucent member and reflection light reflected from the light translucent member enters, the detection face including a detection area where a part of the reflection light to enter the detection unit passes through, and a non-detection area where remaining part of the reflection light not to enter the detection unit passes through; a first intervening member disposed on the detection face attachable to the light translucent member via the first intervening member; and a second intervening member disposed on the detection face attachable to the light translucent member via the second intervening member. The first intervening member has flexibility greater than flexibility of the second intervening member.
摘要:
Provided is a light emitting device with effectively improved color rendering properties. A light emitting device 1 includes: a light source 2 that emits light having the maximum intensity at a predetermined wavelength; a first phosphor (yellow phosphor) 51 that absorbs the light emitted by the light source 2 and outputs fluorescent light having the maximum intensity at a first wavelength which is longer than the predetermined wavelength; and a second phosphor (red phosphor) 52 that absorbs the light emitted by the light source 2 and outputs fluorescent light having the maximum intensity at a second wavelength which is longer than the first wavelength. An absolute value of wavelength dependency of an optical absorption rate of the second phosphor 52 at the first wavelength is set to not more than 0.6%/nm. Accordingly, the color rendering properties of the light emitted by the light emitting device 1 can be effectively improved.
摘要:
An optical beam scanner includes a light source, an optical scanner configured to scan a light beam irradiated from the light source, and an input optical system configured to direct the light beam irradiated from the light source to the optical scanner, wherein the optical scanner includes a rotating mirror configured to rotate around a rotational axis and reflect the light beam irradiated from the light source; the rotating mirror is rotated around the rotational axis so that the light beam is irradiated on differing positions of a mirror surface of the rotating mirror; and the mirror surface of the rotating mirror has a mirror surface inclining angle with respect to a direction parallel to the rotational axis that is arranged to gradually increase from a first side to a second side of the rotating mirror in a direction parallel to a plane perpendicular to the rotational axis.
摘要:
An imaging device includes a welded part on a lens barrel side that is hardened after a contact portion of a lens barrel or a contact part on the lens barrel side is softened, where the contact portion of the lens barrel and the contact part on the lens barrel side are fixed, and a welded part on a light-receiving circuit side that is hardened after a contact portion of the light-receiving circuit or a contact part on a light-receiving circuit side is softened, where the contact portion of the light-receiving circuit and the contact part on the light-receiving circuit side are fixed.