Abstract: A circuit substrate according to the present disclosure includes a substrate body, a pair of electrodes, a resistor, and a glass layer. The substrate body is made of a ceramic. The pair of electrodes are spaced apart from each other on the substrate body. Each of the resistors is located so as to extend over the pair of electrodes. The glass layer covers the pair of electrodes and the resistor. The resistor contains lanthanum hexaboride. A thickness of the glass layer at an outer peripheral portion of the resistor is greater than the glass layer at a center portion of the resistor.

Abstract: An electronic device (1, and 1A to 1E) according to the present disclosure include a substrate (10, and 10F) made of a ceramic and a housing part (21) including a recessed portion (210) accommodating the substrate. The recessed portion includes a plurality of side wall portions (211) arranged around the substrate along a circumferential direction and respectively facing a plurality of sides (111) of the substrate in a plan view when viewing the substrate from a direction perpendicular to a circuit forming surface (110) of the substrate, and a plurality of gaps (212) each located between two of the plurality of side wall portions adjacent to each other in the circumferential direction. The substrate includes a plurality of corner portions (112) curved toward an inner side of the circuit forming surface in a plan view.

Abstract: An electronic device (1, and 1A to 1E) according to the present disclosure include a substrate (10, and 10F) made of a ceramic and a housing part (21) including a recessed portion (210) accommodating the substrate. The recessed portion includes a plurality of side wall portions (211) arranged around the substrate along a circumferential direction and respectively facing a plurality of sides (111) of the substrate in a plan view when viewing the substrate from a direction perpendicular to a circuit forming surface (110) of the substrate, and a plurality of gaps (212) each located between two of the plurality of side wall portions adjacent to each other in the circumferential direction. The substrate includes a plurality of corner portions (112) curved toward an inner side of the circuit forming surface in a plan view.

Abstract: This noncontact ID card or the like comprises an antenna circuit board having an antenna formed on a substrate and an interposer board having expanded electrodes formed on a substrate where an IC chip is embedded, the expanded electrodes being connected to electrodes of the IC chip, wherein both boards are stacked in such a way that the electrodes of the antenna are joined to the expanded electrodes.

Abstract: This noncontact ID card or the like comprises an antenna circuit board having an antenna formed on a substrate and an interposer board having expanded electrodes formed on a substrate where an IC chip is embedded, the expanded electrodes being connected to electrodes of the IC chip, wherein both boards are stacked in such a way that the electrodes of the antenna are joined to the expanded electrodes.

Abstract: An objective lens extension device for use with a camera having an interchangeable lens coupling includes front and rear mounts having confronting recesses which form a housing when together, the rear mount having a camera coupling and the front mount having a lens coupling similar to the camera lens coupling and complimenting and rear mount camera coupling. A bellows extends between the mounts coaxial with the mount couplings and a pair of similar longitudinally extending linearly extendable contractable link assemblies, for example of the lazy tongs type, extend between and are connected to the mounts and lie in mutually perpendicular planes. A third link assembly may be provided parallel and similar to one of the others. The link assemblies may be spring biased to a contracted condition, releasably locked in preselected conditions and transversely stressed to frictionally retard their movement.

Abstract: A photographic camera having an automatic rangefinder system wherein a light emitter projects a beam of light through a convergent lens to illuminate a target object. This beam of light is detected through another convergent lens by one of a group of photoresponsive elements forming a light receiver. Depending upon which photoresponsive element of the light receiver detects the reflected beam of light, the range of the target object to be photographed from the photographic camera is indicated. The light emitter and the light receiver are supported by a single support member in laterally offset relation to each other and the lens elements for converging the projected beam of light and the reflected beam of light, respectively, are integrally formed of a synthetic resin. The rangefinder elements are assembled into a rangefinder module.

Abstract: A camera is equipped with a member bearing data to be photographed such as a date and the like and a data light focusing optical system for projecting the illuminated data from the data member at the front of the camera rearwardly with the object light toward the data photographing portion of the film. The data light focusing optical system is arranged so that the data light is directed to be incident on the data photographing portion of the film from a direction different from the incident direction of the object light. Provided in the front of the data photographing portion of the film is an object light incidence limiting member which is positioned parallel with the plane of the film and allows the transmission of the data light therethrough but interrupts the object light directed toward the data light focusing portion of the film.

Abstract: A camera includes a forwardly facing illuminatable visual member and a first group of laterally spaced parallel vertical light absorbent vanes extending from the face of the visual member to restrict the light rays directed therefrom to a predetermined horizontal angle which is a function of the intervane spacing and the depth of the vanes. The vane parameters are such that the predetermined angle is equal to the camera field angle or the range finder viewing angle or two groups of vanes may be provided corresponding to each of the camera and view finder field angles. A second group of vertically spaced horizontal vanes may be provided to limit the visibility of the visual member to one or more vertical angles. The first and second vane groups are perpendicular to each other and either intercept each other, from rectangular frames or are superimposed.

Abstract: Each exchangeable lens in a series of exchangeable lenses for use in single lens reflex cameras comprises a lens barrel including at least one lens and a diaphragm, a fixed index on the outer surface of the lens barrel, a diaphragm setting ring including f-number graduations ranging from a maximum f-number to a minimum f-number of the exchangeable lens, with the ring rotatable to a plurality of positions to align any one of the f-number graduations to an index so as to be set to a desired f-number. A first projection on the ring is spaced a predetermined first distance, common to each exchangeable lens of the series, from the minimum f-number graduation in the rotational direction of the ring. Thus, the amount of rotation of the first projection with the ring set to a desired f-number corresponds to the step-difference between the minimum and the desired f-number.

Abstract: A large number of cones such as circular cones or pyramids, or conical recesses are regularly uniformly distributed and formed on a surface of a transparent focussing plate. Each cone or conical recess has a large number of fine irregularities on the sloping surface thereof to thereby diffuse the light passing through the sloping surface.

Abstract: A camera focussing aid includes an auxiliary light projector directing a light beam forwardly of the camera and mounted in the camera body or in a separable flash unit. A mechanism is provided for deactivating the auxiliary projector during the camera exposure sequence and includes a switch network connecting the auxiliary projector lamp to a battery, the switch being opened either with the depression of the shutter release member, the initiation of the shutter opening, the closing of the flash triggering switch or a drop in voltage across the flash charge capacitor. The projector beam is advantageously of small divergence and the auxliary projector may be used with a camera having a split image range finder or a single lens reflex camera.

Abstract: A self-processing camera is adapted to receive a film magazine containing a plurality of film units mounted in a line upon an elongated leader paper and equally spaced therealong. Each of the film units includes an image recording unit consisting of a photosensitive sheet overlying an image receiving sheet and separable therefrom, and a rupturable portion, containing processing fluid, disposed at one side of the image recording unit. The leader paper is folded to dispose the film units in a superposed stack within the film magazine and the latter has a take-up reel to which is secured one end of the leader paper and is adapted to wind thereon a film unit excluding the image recording unit.