Abstract: A battery packaging body allows, while infants can hardly take out a battery, a person other than infants can take out the battery. A battery packaging body includes a mount, and a blister cover which can accommodate a battery between the same and the mount. The mount and the blister cover are fixed to each other at least at their peripheral edge parts. The blister cover has a non-fixed part which is, at a position continuous to an accommodating projection, not fixed to the mount, and a first rib part provided along the accommodating projection. The non-fixed part is positioned on the opposite side to the first rib part across the accommodating projection and constitutes a part of a cuttable region P. The first rib part extends in a direction crossing a direction in which the non-fixed part, the accommodating projection and the first rib part line up.

Abstract: A battery packaging body allows, while infants can hardly take out a battery, a person other than infants can take out the battery. A battery packaging body includes a mount, and a blister cover which can accommodate a battery between the same and the mount. The mount and the blister cover are fixed to each other at least at their peripheral edge parts. The blister cover has a non-fixed part which is, at a position continuous to an accommodating projection, not fixed to the mount, and a first rib part provided along the accommodating projection. The non-fixed part is positioned on the opposite side to the first rib part across the accommodating projection and constitutes a part of a cuttable region P. The first rib part extends in a direction crossing a direction in which the non-fixed part, the accommodating projection and the first rib part line up.

Abstract: A resin lens includes an optical functional section that has an optical function, and a flange section that is formed around the optical functional section. A reference face is used as reference during positioning and fixing, and is formed on one face of the flange section. The face on which the reference face is formed is molded by an insert that mainly forms the optical functional section and a holder that mainly forms the flange section, during molding. The reference face of the flange section and an optical functional face that is the face of the optical functional section facing the reference face are molded by the insert, and a face of the flange section that is closer to the outer periphery than the reference face of the flange section is molded by the holder.

Abstract: A lens has a flange part at the outer periphery of its surface. A flange surface of the flange part is higher than the lens surface. The flange surface has a marking to identify a production jig, for example.

Abstract: A lens is manufactured by hardening soft material filled inside a molding tool by cooling. The lens includes a convex lens portion having an optical axis, and a marking portion located outside of an effective diameter of the lens portion. The shape or the position of the marking portion is set to prevent deformation of the marking portion by contact with the molding tool due to shrinkage of the material during cooling.

Abstract: A lens has a flange part at the outer periphery of its surface. A flange surface of the flange part is higher than the lens surface. The flange surface has a marking to identify a production jig, for example.

Abstract: A lens has a flange part at the outer periphery of its surface. A flange surface of the flange part is higher than the lens surface. The flange surface has a marking to identify a production jig, for example.

Abstract: A resin lens includes an optical functional section that has an optical function, and a flange section that is formed around the optical functional section. A reference face is used as reference during positioning and fixing, and is formed on one face of the flange section. The face on which the reference face is formed is molded by an insert that mainly forms the optical functional section and a holder that mainly forms the flange section, during molding. The reference face of the flange section and an optical functional face that is the face of the optical functional section facing the reference face are molded by the insert, and a face of the flange section that is closer to the outer periphery than the reference face of the flange section is molded by the holder.

Abstract: A lens has a flange part at the outer periphery of its surface. A flange surface of the flange part is higher than the lens surface. The flange surface has a marking to identify a production jig, for example.

Abstract: A lens has a flange part at the outer periphery of its surface. A flange surface of the flange part is higher than the lens surface. The flange surface has a marking to identify a production jig, for example.

Abstract: A lens is manufactured by hardening soft material filled inside a molding tool by cooling. The lens includes a convex lens portion having an optical axis, and a marking portion located outside of an effective diameter of the lens portion. The shape or the position of the marking portion is set to prevent deformation of the marking portion by contact with the molding tool due to shrinkage of the material during cooling.

Abstract: A lens has a flange part at the outer periphery of its surface. A flange surface of the flange part is higher than the lens surface. The flange surface has a marking to identify a production jig, for example.

Abstract: Scratches on the recording disk caused by sliding of a disk cartridge shutter is prevented by slidably inserting first and second shutters between a tray and a case on the opposite side to a recording disk accommodating portion of the tray. The first shutter simultaneously opens and closes a case side driving shaft insert hole, a case side head insert hole, a tray side driving shaft insert hole, and a tray side head insert hole. The second shutter opens and closes a terminal hole. The second shutter is opened independently of the first shutter and is held in a position so that the case side driving shaft insert hole, the case side head insert hole, the tray side driving shaft insert hole, and the tray side head insert hole are not closed. Closing the first shutter, however, causes the second shutter to also close.

Abstract: A case for flat objects (e.g., shells containing disc-shaped recording media) includes a pair of case walls, a bottom wall and opposed side walls attached to the case walls. The opposed side walls maintain the case walls in parallel separated relationship and establish an open end of the case opposite to the bottom wall. The side walls are provided with respective L-shaped cut-out regions having edges which establish respective resilient tabs. One end of each tab is connected to a respective one of the side walls while the opposite terminal end of each tab is unconnected to the side wall. The resilient tabs each include a notch formed in their end which is connected to the side wall. The notch thereby establishes a hinge region to allow the resilient tabs to be deflected inwardly of the case and thereby be in resilient contact with a lateral edge of a flat object within the case.

Abstract: A recording disc cartridge comprising a disc case formed by a top half and a bottom half each having a spindle hole and a head insertion hole, a recording medium rotatably enclosed in the disc case, shutter means for closing and opening the spindle holes and the head insertion holes, a slide means for moving the shutter means in both lateral directions relative to a line which passes through each center of the spindle hole and the head insertion hole and means for resiliently exerting the slide means so as to drive the shutter means for closing the spindle holes and the head insertion holes.

Abstract: A recording disc cartridge comprising a disc case formed by a top half and a bottom half each having a spindle hole and a head insertion hole, a recording medium rotatably enclosed in the disc case, shutter means for closing and opening the spindle holes and the head insertion holes, a slide means for moving the shutter means in both lateral directions relative to a line which passes through each center of the spindle hole and the head insertion hole and means for resiliently exerting the slide means so as to drive the shutter means for closing the spindle holes and the head insertion holes.