摘要:
A distance measuring apparatus measuring a distance to an object is disclosed. The apparatus includes a light projector projecting an irradiating light onto the object; a first receiver receiving and converting a reflected light into a received light signal; a second receiver adjacent to the light projecting unit, the second receiver receiving and converting the irradiating light into a reference signal, the second receiver being different from the first receiver; and a distance measuring unit measuring the distance based on a time. The distance measuring unit calculates an integrated waveform based on a reference waveform of the reference signal and a waveform of the received light signal, determines, based on the integrated waveform, a time from projection of the irradiating light onto the object by the light projecting unit until reception of the reflected light by the first receiver, and calculates the distance based on the determined time.
摘要:
A drive assist device includes a light source that irradiates a detection target with light, a first lens having a first area through which the irradiated light from the light source passes, a second lens having a second area through which reflected light reflected from the detection target passes, and a light receiving element that receives the reflected light that passes the second lens. The first area and the second area are arranged to be in align with each other, in width direction of the drive assist device.
摘要:
A light irradiator including multiple point light sources arranged in a straight line, a light-transmissive light guiding member provided in front of the point light sources in an emission direction of beams of light emitted from the point light sources, the light guiding member guiding the beams of light in a predetermined direction toward a surface to be irradiated; and two or more protrusions protruding toward the point light sources, provided on a light entering surface of the light guiding member and arranged in the same direction as the point light sources. The light guiding member and the point light sources are positioned such that a distance between the protrusions provided to the light guiding member and irradiation surfaces of the point light sources is equal at two positions.
摘要:
The present invention relates to a system wherein each of a reservation server that makes reservations of sales and purchases, a portable terminal owned by a user who makes a reservation, and a shop terminal provided in stores where goods are sold, and a service or entertainment is provided, is connected to a communication network whereby the user makes a reservation for sales or purchase by accessing the reservation server, the reservation server encrypts contents of the sales/purchase reservation and transmits the encrypted reservation information to the aforementioned portable terminal, the user presents the transmitted encrypted reservation information to the shop terminal, visiting the shop terminal, and the shop terminal accesses the reservation server to confirm whether the presented encrypted reservation information is legitimate or not and admits the presenter of the encrypted reservation information if the reservation information is legitimate.
摘要:
A polyvinylpyrrolidone composition in a form of a solid preparation or an aqueous solution, the composition including polyvinylpyrrolidone, ammonia, and a secondary amine, and processes for producing the polyvinylpyrrolidone composition, the first process including heat drying a polyvinylpyrrolidone aqueous solution containing ammonia and a secondary amine to obtain the polyvinylpyrrolidone in a form of a solid preparation, the second process including adding a secondary amine to an aqueous solution containing polyvinylpyrrolidone and ammonia to obtain the polyvinylpyrrolidone composition in a form of an aqueous solution, and the third process including polymerizing N-vinyl-2-pyrrolidone using hydrogen peroxide as a polymerization initiator in a presence of a metal catalyst using ammonia as a promoter in an aqueous medium to obtain the polyvinylpyrrolidone composition in a form of an aqueous solution.
摘要:
The present invention discloses a braille cell comprising plural piezoelectric element reeds which are bent at the free ends thereof when DC voltage is added to them, a base body to which the piezoelectric element reeds are fixed at the base ends thereof through a print circuit board and which supports the piezoelectric element reeds piled like steps at a certain interval, and tactile pins provided corresponding to the free ends of the piezoelectric element reeds, wherein a tactile section for holding the tactile pins and provided with a detachably attaching means is detachably attached to the base body and wherein fixing plates are attached to both sides of the base body by means of their detachable attachment which is to define the piezoelectric element reeds in left and right directions of the base body.
摘要:
A detection apparatus attachable to a structure includes a transmission unit to transmit a transmission signal; a receiving unit to receive a reflection signal of the transmission signal reflected from a detection target; and a detection processing unit to detect the detection target based on the reflection signal. The structure includes a transmission translucent portion and a receiving translucent portion. The transmission signal having a given wavelength range passes through the transmission translucent portion, and the reflection signal having a given wavelength range passes through the receiving translucent portion.
摘要:
The optical scanning device scans an object with plural laser beams, and includes a light source, which emits plural parallel laser beams in a predetermined direction and which has a stem portion having a first notch; and a support having an opening, with which the light source is engaged so as to be rotatable on an axis parallel to the plural light beams, and a second notch located on a part of the opening so as to overlap with the first notch when the light source is engaged with the opening. By inserting a slotted screwdriver, etc., into the space formed by the two notches and rotating the screwdriver, the angle of the light source can be adjusted and thereby the pitches of the laser beams can be adjusted.
摘要:
An optical scanning device configured to irradiate an object with light generating from a light source via at least one mirror with a first end portion and second end portion which are attached to a housing and to scan the object with the irradiating light is provided, wherein the first end portion of the at least one mirror is movably supported by the housing and the second end portion of the at least one mirror is bonded to the housing.
摘要:
A fixture structure is disclosed that is able to reduce the workload when adjusting a relative position of constituent components. The fixture structure includes a first member and a second member fixed with the first member by a screw. The first member has a first contacting surface, the second member has a second contacting surface in contact with the first contacting surface, the first member and the second member are fixed by the screw passing through the first contacting surface and the second contacting surface, a first notch is formed at an end of the first contacting surface, a second notch is formed at an end of the second contacting surface, and an inner end of the second notch of the second member is inside an inner end of the first notch of the first member.