Abstract: An indicating apparatus within a finder of a single lens reflex camera includes a mirror which reflects light of an object transmitted through a photographing lens to form an object image on a focusing plate, and a finder optical system through which an image of the object formed on the focusing plate is viewed. The indicating apparatus further includes a mirror box which supports the mirror, and a photographing information projector provided on the lower portion of the mirror box to project and indicate an image of the photographing information onto the focusing plate without interfering with the front end of the mirror.

Abstract: A light source apparatus for an endoscope having a light source for emitting a bundle of illuminating light rays which are to be supplied to a light guide of the endoscope. The apparatus includes at least a pair of light-blocking plates disposed in the bundle of illuminating light rays to face each other across the optical axis of the ray bundle, and a device for supporting the light-blocking plates such that the plates are rotatable about an axis extending therebetween at right angles to the optical axis. At least one of the light-blocking plates has such a cross-sectional configuration as viewed in the optical axis direction that the light-blocking plate is bent at an angle to the axis of rotation near the center of the illuminating optical path.

Abstract: A zoom lens barrel is provided including a cam ring which is threadedly engaged to a female helicoid formed in a stationary barrel, a linear movement guide member that is rotatable relative to the cam ring and movable in an optical axis direction together with the cam ring, and movable lens groups, including first, second and third lens groups that are guided in the optical axis direction by the linear movement guide member. The zoom lens barrel further includes a female helicoid formed on an inner peripheral surface of the cam ring to engage with a male helicoid of a first lens frame which holds the first lens group and a plurality of cam grooves formed on the cam ring to drive lens groups behind the first lens group.

Abstract: A color adjusting apparatus is provided with a color image pickup device for picking up an object image signal and a color adjusting device for adjusting a color component of the object image signal picked-up by the color image pickup device. The apparatus is further provided with a first optical system for converging light reflected from or transmitted through the object to form a direct image of the object, a light splitting mechanism for splitting object light, and a screen located at a point of convergence of one of the bundles of rays split by the light splitting mechanism. The color image pickup device is located at a point of convergence of the other bundle of rays split by the light splitting mechanism. A positive/negative signal inverter is further provided for inverting positive or negative image signals picked-up by the color image pickup device to negative or positive image signals, respectively.

Abstract: A battery terminal includes a main member and ring member, each made from a conductive metal. A stud bolt for cable connection projects from the main member. A post fitting is provided in the ring member. The ring member is placed on top of the main member with one end of the ring member supported by the main member and the other end at an angle floating free above the main member. This other end is passed over the stud bolt and the post fitting of the ring member is fit over the battery post. The battery cable terminals are fit onto the stud bolt. When the nut is tightened on the stud bolt, the terminals are tightened against the ring member, which is at an angle to the battery post, and the post fitting of the ring member is forced down and clamped against the battery post. Thus, securing the battery terminal to the battery post and securing the cable terminals to the battery terminal can be simultaneously completed by a single thread tightening operation.

Abstract: Proximity controls for controlling the proximity of a gamma camera to a patient during a scan of the patient. The proximity controls consist of two spaced apart energy screens, each comprising 200 beams, parallel to and spaced from the detector of the gamma camera. When neither screen is interrupted, the camera is moved towards the patient. When both screens are interrupted, the camera is moved away from the patient. When only the screen farthest from the detector is interrupted, the camera is braked so as not to move away from or towards the patient.

Abstract: An exposure control apparatus of a camera having a photometer for detecting a brightness of an object to be taken, an exposure value calculator for calculating an optimum exposure value in accordance with the object brightness, and an exposure factor setting device for setting a pair of exposure factors having a shutter speed and a diaphragm value, including an exposure factor manual setting device, a specific program exposure mode in which the exposure factors corresponding to the optimum exposure values are automatically set, and an exposure factor modifying device for enabling the exposure factor manual setting device to manually set one of the exposure factors when the exposure factor manual setting device is actuated in the specific program exposure mode.

Abstract: The invention relates to a metal head for a golf club of the "wood" type, which is provided with a body, and optionally a hosel, the body including one part that is sandblasted or covered with paint, and one part that is polished. The polished part corresponds at least to the surface subjected principally to friction with the ground, and the other part corresponds at least to the surface of the body visible to the golfer when he or she addresses the ball, except for a lower polished zone of the front face, which extends from the striking edge and whose boundary with the upper sandblasted or paint-covered zone forms a substantially horizontal line of demarcation separating the face, when the head rests on the ground for the address of the ball.

Abstract: A method and apparatus is provided for operating a permanently excited single-phase alternating current machine, otherwise known as a transverse flux machine, which allows optimal exploitation of the machine and economical design of the converter. A terminal voltage is applied to the machine, the shape of which is defined by the characteristics of the machine. The waveform of the terminal voltage converts from a sinusoid to a square wave, with a maximum voltage equal to the maximum available voltage, at defined switch-over times. Based on the switch over times, the resulting terminal voltage wave can be square, completely sinusoidal, or a combination of both.

Abstract: A fill-in light emitting apparatus having an illuminating mechanism for emitting illumination light whose color temperature can be varied; a color temperature metering mechanism for measuring the color temperature of the external light; and a color temperature controlling mechanism for varying the color temperature of the illumination light in accordance with color temperature data measured by the color temperature metering mechanism.

Abstract: An eye direction detecting method in which eye direction detecting light flux reflected by an eye impinges on a line sensor comprised of a photoconductive bit element array, so that the line sensor generates output signals including a first signal level corresponding to light flux reflected by an iris and a second signal level corresponding to light flux reflected by an eyeground, whereby information on a point of change between the first signal level and the second signal level is used to detect the eye direction, including setting a threshold level between the first signal level and the second signal level, detecting a pair of bit elements which have outputs larger and smaller than the threshold level, determining a first line based on the outputs of the pair of bit elements, obtaining a zero-cross bit element which is located at an intersecting point of the first line with a zero level, determining a second line which has an inclination angle smaller than that of the first line, determining a third line wh

Abstract: A camera is provided with an object distance measuring sensor for detecting an object distance, an object brightness measuring sensor for detecting an object brightness, a photographing lens, a position of which along an optical axis is variably set, and a diaphragm mechanism having an aperture value that is variably set. A single movable control member, that is moved in one direction upon a shutter release operation, a first cam for setting the position of the photographing lens in accordance with the movement of the control member, and a second cam for setting the aperture value of the diaphragm mechanism in accordance with the movement of the control member, are also provided.

Abstract: A zoom lens assembly has a rotatable cam ring having first helicoid threads and a cam groove, a front lens group held by a front lens group frame having second helicoid threads held in mesh with the first helicoid threads for moving the front lens group along an axis of the rotatable cam ring, and a rear lens group held by a rear lens group frame having a cam follower engaging in the cam groove for moving the rear lens group along the axis relatively to the front lens group. A pair of diametrically opposite tension springs in the form of coil springs is coupled between the front and rear lens group frames for normally urging them toward each other thereby to remove backlash between the first and second helicoid threads and between the cam follower and the cam groove.

Abstract: A signal processing method for detecting a point of change from a first signal level to a second signal level, outputted from a line sensor having a photoconductive bit element array including setting a threshold level between the first signal level and the second signal level. A pair of bit elements are detected which have outputs that are larger than and smaller than the threshold level. A first line is determined based on the outputs of the pair of bit elements or a pair of bit elements which have a specific relationship to the above-mentioned pair of bit elements. A zero-cross bit element located at an intersecting point of the first line with a zero level is obtained. A second line, which has an inclination angle that is smaller than that of the first line, is determined based on the outputs of the zero-cross bit element and a bit element having a specific relationship to the zero-cross bit element or the outputs of a pair of bit elements having a specific relationship to the zero-cross bit element.

Abstract: Jettisonable sabot for a subcaliber projectile. In a jettisonable sabot for a subcaliber projectile, which is fired from a weapon barrel having helical grooves, there is a risk that individual segments of a sabot body, strike the projectile body with their edges during the separation from the projectile body, with these impacts against the projectile body impairing the impact accuracy. In order to avoid these impacts, the parting planes or slots between the individual segments of the sabot body are not arranged radially, as in the past, but rather parallel with radial planes with a specified distance (d) corresponding to at least half of the radius (R) of the projectile body, with the slits between the segments of the sabot jacket preferably being arranged parallel to radial planes with a specified distance (d).

Abstract: A lens accessory attaching mechanism is provided to attach a lens accessory to a lens barrel. The lens attaching mechanism has four pairs of first and second rollers attached to the proximal end portion of the lens accessory into which the distal end of the lens barrel is inserted. The first and second rollers are equiangularly spaced in the circumferential direction of the lens accessory and are movable in a radial direction thereof. A ring spring arranged around all of the first and second rollers urges the rollers radially inwardly. An outer flange portion formed on the outer periphery of the lens barrel abuts the first and second rollers to restrict the movement of the lens accessory in the axial direction of the lens barrel.

Abstract: An apparatus for detecting failures of a longitudinal acceleration sensor for detecting a longitudinal acceleration of a motor vehicle, comprising: a wheel speed calculating device for calculating wheel speeds on the basis of outputs of wheel speed sensors; an estimated vehicle body acceleration calculating device for calculating an estimated vehicle body acceleration on the basis of the wheel speeds; a comparative arithmetic device which calculates a ratio of a vehicle body acceleration calculated from an output of the longitudinal acceleration sensor to the estimated vehicle body acceleration and calculates a first integrating value by performing a subtraction and an addition for the first integrating value when the ratio falls within and out of a predetermined range, respectively; and a fail-safe device for performing a predetermined fail-safe processing if the first integrating value is larger than a predetermined value.

Abstract: Method of manufacturing a spectacle frame component composed of a fiber-reinforced, synthetic resin includes filling a core of a single tubular braid woven from long reinforcing fibers with an inert filling material, exteriorly impregnating the filled tubular braid with a synthetic resin comprising a bisphenol epoxy comprising first aliphatic amine hardening agent and a second aromatic diamine hardening agent, or a single aliphatic amine hardening agent, shaping and stabilizing a cross-section of the epoxy impregnated tubular braid, and shaping the stabilized cross-section epoxy impregnated tubular braid into a three dimensional form and hardening in the three dimensional form.

Abstract: A lens holder having a cylindrical lens frame which holds at least one pair of lenses, wherein said lens frame is provided with a lens abutting surface which comes into contact with a first lens to restrict an axial position thereof. The first lens is provided with a positioning reference surface against which the second lens abuts to determine the axial position thereof. A molding die assembly which is used to mold the lens frame is also disclosed.