Abstract: A semiconductor light emitting device capable of precisely detecting a cleavage position is provided. A second light emitting device is layered on a first light emitting device. The second light emitting device has stripe-shaped opposed electrodes that are respectively arranged oppositely to respective p-side electrodes of the first light emitting device and electrically connected to the p-side electrodes of the first light emitting device, connection pads respectively and electrically connected to the respective opposed electrodes, a connection pad electrically connected to a p-side electrode, and marks arranged with one end in the plain face of cleavage face S3 or cleavage face S4 on an insulating layer formed on the side of a second substrate facing to a first substrate.

Abstract: A laser module includes a stem provided with a device mounting structure; a light emitting device mounted onto the stem by use of the device mounting structure a tubular cap fixed to the stem in the state of surrounding the light emitting diode and provided with an aperture through which to pass laser light emitted by the light emitting device; and a light transmitting plate fixed, by use of a bonding material, to an inside surface of the cap in the state of closing the aperture. An annular projection projecting to the inside of the cap in the optical axis direction of the laser light is provided at a peripheral edge part of the aperture of the cap, and the light transmitting plate is fixed to the inside surface of the cap inclusive of the projection by use of the bonding material.

Abstract: A semiconductor light emitting device capable of precisely detecting a cleavage position is provided. A second light emitting device is layered on a first light emitting device. The second light emitting device has stripe-shaped opposed electrodes that are respectively arranged oppositely to respective p-side electrodes of the first light emitting device and electrically connected to the p-side electrodes of the first light emitting device, connection pads respectively and electrically connected to the respective opposed electrodes, a connection pad electrically connected to a p-side electrode, and marks arranged with one end in the plain face of cleavage face S3 or cleavage face S4 on an insulating layer formed on the side of a second substrate facing to a first substrate.

Abstract: An automatic cop changing device for a weaving machine in which a shuttle carrying a cop consisting of a bobbin around which a weft is wound is reciprocated between warps so as to weave the weft between the warps, comprising: a cop positioning unit for securing the shuttle stationary near a terminal point of its reciprocating movement when the weft of a current cop mounted on the shuttle is consumed by more than a precribed amount; a cop storage unit for storing a plurlaity of new cops; a robot arm carrying a weft gripping hand for drawing the weft from the current cop and a weft from one of the new cops stored in the cop storage unit, and crossing the two wefts, a cop engaging hand for moving the cop in the shuttle between its upright position and its retracted position, and a cop gripping hand for removing the old cop from the shuttle and carrying the new cop into the shuttle; a weft tying unit for tying the crossed part of the wefts; and a weft trimming unit for trimming an extraneous part of the tied weft