Optex Co., Inc.

Michinori Noguchi

Takeo Hyodo

Atsuko Sasaki

Shun Onishi

Hiroyuki Tomooka

Hiroyuki Ikeda

Tomoyuki Ohba

Cholmin Seo

Takashi Kondo

Masatoshi Tsuji

Shinya Nishimura

Yu Kawashima

Hirofumi Shimada

Chihiro Morita

Tsutomu Usami

Human body detector

The fastening structure is fastening one member and another member via a fastening member, and includes: a fitting portion having a fitting hole; a to-be-fitted portion having a to-be-fitted hole; and the fastening member inserted into the fitting hole. The fastening member has: a trunk portion, between one end and another end of the fastening member; a tool groove at the one end; a come-off prevention portion at the other end, the come-off prevention portion having a greater radius than a radius; and a helical protrusion at a part of the trunk portion. The fitting portion has a helical groove configured to be screwed with the helical protrusion. A radius of the fitting hole is less than the radius of the come-off prevention portion, and a radius of the to-be-fitted hole is not less than the radius of the come-off prevention portion.

Fastening structure and object detection device including fastening structure

Security sensor assembly

According to one embodiment of a passive infrared sensor, a passive infrared sensorwhere an infrared sensing elementand an optical systemthat sets a detection area Aof the infrared sensing elementare covered with a cover. The passive infrared sensorincludes: a light emitting elementthat emits infrared light from the inside of the coverto the outside through the optical system; a reflective regionthat is disposed outside the coverand reflects at least some of the infrared light emitted from the light emitting element; and a light receiving elementthat receives the infrared light reflected by the reflective region, transmitted through the optical systemand reaching the inside of the cover

Passive infrared sensor and obstacle detection system used in the same

According to one embodiment, a passive infrared sensor includes an infrared sensing element, a pair of lensesR andL that set mutually substantially 180&#xb0; opposing side detection areas of the infrared sensing element, and mirrorsR andL that cause infrared light from the side detection areas to enter the infrared sensing element. An infrared light incident surface of the passive infrared sensor is disposed facing the opposite direction from an attachment surfaceto which the passive infrared sensor is attached at the time of installation, and the passive infrared sensor is also disposed with a lensC that sets plural front detection areas in the front direction. A slitfor allowing infrared light to be transmitted is formed in the mirrorsR andL in order to allow the infrared light from the front detection areas to enter the infrared sensing element

Passive infrared sensor

According to one embodiment, a passive infrared sensorincludes an infrared sensing elementa pair of lensesR andL, and main mirrorsR andL. A submirrorR is disposed on the main mirrorR. The submirrorR is configured so that, with respect to the main mirrorR, the orientation of the submirrorR is changed by a first predetermined angle in regard to the horizontal direction in a direction away from an attachment surfaceat the installation time, and the orientation of the submirrorR is changed by a second predetermined angle in regard to the vertical direction in a direction downward at the installation time. A submirrorL is disposed on the main mirrorL. The submirrorL is configured so that, with respect to the main mirrorL, the orientation of the submirrorL is changed by a first predetermined angle in regard to the horizontal direction in a direction away from the attachment surfaceat the installation time, and the orientation of the submirrorL is changed by a second predetermined angle in regard to the vertical direction in a direction downward at the installation time.

A tamper switch body is disposed in a housing of a PIR sensor. A tamper opening is formed at a position opposite a switch actuating member of the tamper switch body in a base plate of the PIR sensor. An elastic switch member is mounted in the tamper opening. The elastic switch member includes a pressure-receiving projection portion abutting a mounting plate, and depresses the switch actuating member through elastic deformation of the pressure-receiving projection portion by receiving a pushing force from the mounting plate in a state in which the PIR sensor is fixed to a wall surface. The elastic switch member seals the inside of the housing by closing the tamper opening, thus preventing a flood into the housing of the PIR sensor.

Tamper switch structure and security sensor including the tamper switch structure

The combined sensor of the present invention is comprised of an MW sensor and a PIR sensor, in which the frequency difference of two microwaves transmitted by the MW sensor is set such that the phase difference between the IF signals received by the MW sensor is approximately 180&#xb0; when there is an object at the intermediate distance between the maximum detection distance within the target detection area and the maximum detection distance in the event of a deviation of the detection area attributable to mounting error of the infrared sensor

Growing community of inventors

Otsu, Japan

Michinori Noguchi