Abstract: An imaging apparatus having a protection ring which protects a supporting device coupling section such that it is difficult for a user to touch the supporting device coupling section is provided. A supporting device can be coupled to a camera body, and the camera body includes a supporting device coupling section and a protection ring. The supporting device coupling section has a screw hole to which the supporting device can be coupled, and a supporting device coupling surface which is formed and exposed around the entrance of the screw hole. The protection ring includes a return spring which restricts the position of the protection ring, a return spring stopper which supports the return spring, and a supporting device contact surface which protrudes outward of the exposed surface formed around the entrance of the screw hole of the supporting device coupling section, in a direction toward a housing outside.

Abstract: An imaging apparatus capable of reducing increase in the temperature of a supporting device coupling section is provided. The imaging apparatus includes a supporting device fixing portion having a screw hole to which a supporting device can be coupled, a supporting device receiving portion which has an exposed surface formed around the entrance of the screw hole and is configured to receive the supporting device, and an exterior section having an outer surface formed around an opening. The supporting device fixing portion and the supporting device receiving portion are formed as separate portions.

Abstract: Provided is an imaging device that does not let a user experience a sense of discomfort by touching a support attaching part. The imaging device includes: a support attaching part that is disposed on a support attaching surface and includes a screw hole; and a support attaching part cover that moves between a first position covering the support attaching part and a second position uncovering the support attaching part without generating convexness with regard to the support attaching surface. When a support is attached to the support attaching part, the support attaching part cover moves from the first position to the second position; and when the support is removed from the support attaching part, the support attaching part cover moves from the second position to the first position.

Abstract: An injection mold 70 includes a first portion 71, a second portion 72, a third portion 73, and a fourth portion 79. The first portion 71 has three high-density regions H in which there is the highest proportion of the axial direction dimension accounted for by the portion corresponding to cam grooves with respect to the axial direction dimension of a cavity 71a. First gates 74b are disposed at locations corresponding to the high-density regions H, or closer to the high-density regions H than second gates 75b. The average channel sectional area of first runners 74a is larger than the average channel sectional area of second runners 75a.

Abstract: An imaging device to which a support can be attached includes a support attachment unit and a support body unit. The support attachment unit includes a first threaded hole configured to be attached to the support, and an exposure face formed around the entrance of the first threaded hole. The support body unit includes a housing having an opening configured to expose the exposure face and an outer surface formed around the opening, and movably supports the support attachment unit. The support attachment unit is disposed at a first position when the support is not attached, and is disposed at a second position when the support is attached. The exposure face is disposed more to the inside of the housing than the outer surface when the support attachment unit is disposed at the first position.

Abstract: A camera body includes a body mount, an imaging element, an imaging element circuit board, a main circuit board, and a metal heat radiating plate. The body mount allows the lens unit to be mounted. The imaging element is disposed on the opposite side of the body mount from the side where the lens unit is mounted, and converts an optical image of the subject into image data. The imaging element circuit board is electrically connected to the imaging element and controls the imaging element. The main circuit board is disposed on the opposite side of the imaging element from the body mount, and includes a camera controller. The heat radiating plate is disposed between the imaging element and the main circuit board.

Abstract: A camera body includes a body mount to which the lens unit can be mounted, a metal main frame supporting the body mount, an imaging element configured to convert an optical image of the subject into image data, an intermediate part disposed along a thermal conduction path formed between the main frame and the imaging element, and a metal heat radiating member connected to the intermediate part.

Abstract: By providing a coloring agent, which is brought in contact with the liquid fuel leaked from an outer peripheral portion of the liquid fuel holding section that is configured to hold the liquid fuel and by which the contact portion is changed in color, in at least part of the outer peripheral portion, the leakage of the liquid fuel from the liquid fuel holding section can be visually detected swiftly and easily without providing any special detection device.

Abstract: A drive frame 34 serving as a cylindrical molded article includes a drive frame main body 34a, three first cam grooves 34c, three second cam grooves 34d, three first gate portions 84b, and three high-density regions H. The first gate portions are formed at the end of the cylindrical portion, and are vestiges of gates in injection molding. The high-density regions H are regions in which there is the highest proportion of the axial direction dimension accounted for by the first cam grooves 34c and the second cam grooves 34d with respect to the axial direction dimension of the drive frame main body 34a. The first gate portions 84b are disposed at a location closer to one of two adjacent high-density regions than the other in the circumferential direction of the two adjacent high-density regions H.

Abstract: A drive frame 34 as a cylindrical molded article has a drive frame main body 34a, three first cam grooves 34c, three second cam grooves 34d, three high-density regions H, and three cam pins 43. The cam pins 43 are disposed in the circumferential direction between first center lines X1 which are positioned in the center in the circumferential direction between adjacent high-density regions H, and the high-density regions H.

Abstract: A camera body includes a body mount, an imaging element, an imaging element circuit board, a main circuit board, and a metal heat radiating plate. The body mount allows the lens unit to be mounted. The imaging element is disposed on the opposite side of the body mount from the side where the lens unit is mounted, and converts an optical image of the subject into image data. The imaging element circuit board is electrically connected to the imaging element and controls the imaging element. The main circuit board is disposed on the opposite side of the imaging element from the body mount, and includes a camera controller. The heat radiating plate is disposed between the imaging element and the main circuit board.

Abstract: A camera body includes a body mount to which the lens unit can be mounted, a metal main frame supporting the body mount, an imaging element configured to convert an optical image of the subject into image data, an intermediate part disposed along a thermal conduction path formed between the main frame and the imaging element, and a metal heat radiating member connected to the intermediate part.

Abstract: A drive frame 34 as a cylindrical molded article has a drive frame main body 34a, three first cam grooves 34c, three second cam grooves 34d, three high-density regions H, and three cam pins 43. The cam pins 43 are disposed in the circumferential direction between first center lines X1 which are positioned in the center in the circumferential direction between adjacent high-density regions H, and the high-density regions H.

Abstract: A drive frame 34 as a cylindrical molded article has a drive frame main body 34a, three first cam grooves 34c, three second cam grooves 34d, three high-density regions H, and three cam pins 43. The cam pins 43 are disposed in the circumferential direction between first center lines X1 which are positioned in the center in the circumferential direction between adjacent high-density regions H, and the high-density regions H.

Abstract: A drive frame 34 as a cylindrical molded article has a drive frame main body 34a, three first cam grooves 34c, three second cam grooves 34d, three high-density regions H, and three cam pins 43. The cam pins 43 are disposed in the circumferential direction between first center lines X1 which are positioned in the center in the circumferential direction between adjacent high-density regions H, and the high-density regions H.

Abstract: An injection mold 70 includes a first portion 71, a second portion 72, a third portion 73, and a fourth portion 79. The first portion 71 has three high-density regions H in which there is the highest proportion of the axial direction dimension accounted for by the portion corresponding to cam grooves with respect to the axial direction dimension of a cavity 71a. First gates 74b are disposed at locations corresponding to the high-density regions H, or closer to the high-density regions H than second gates 75b. The average channel sectional area of first runners 74a is larger than the average channel sectional area of second runners 75a.

Abstract: A drive frame 34 serving as a cylindrical molded article includes a drive frame main body 34a, three first cam grooves 34c, three second cam grooves 34d, three first gate portions 84b, and three high-density regions H. The first gate portions are formed at the end of the cylindrical portion, and are vestiges of gates in injection molding. The high-density regions H are regions in which there is the highest proportion of the axial direction dimension accounted for by the first cam grooves 34c and the second cam grooves 34d with respect to the axial direction dimension of the drive frame main body 34a. The first gate portions 84b are disposed at a location closer to one of two adjacent high-density regions than the other in the circumferential direction of the two adjacent high-density regions H.

Abstract: By providing a coloring agent, which is brought in contact with the liquid fuel leaked from an outer peripheral portion of the liquid fuel holding section that is configured to hold the liquid fuel and by which the contact portion is changed in color, in at least part of the outer peripheral portion, the leakage of the liquid fuel from the liquid fuel holding section can be visually detected swiftly and easily without providing any special detection device.

Abstract: The object of the present invention is to provide a liquid fuel storage container for fuel cell capable of storing liquid fuel to be supplied to a liquid-fuel direct-supply type fuel cell and stably supplying liquid fuel for a long time, and also provide a fuel-cell system. The present invention employs a fuel-supplying pipe (120) extending within a tank member (110) for supplying liquid fuel (185) and having flexibility, and provides a weight member (122) at a portion near a suction port (121) for liquid fuel on the fuel-supplying pipe. Accordingly, the suction port can move to a portion where the liquid fuel exists, anytime, and can be kept immersed in the liquid fuel. This enables stably supplying fuel even when the fuel cell is mounted on a portable electronic apparatus.