Strobe light and image recorder containing that strobe light

A strobe light, which changes the angle at which light from a light source illuminates an object, comprising at least a light emitter consisting of a reflector provided with a reflecting surface which is not of a truly parabolic form but of a quasi-parabolic form and planar side reflecting surfaces, all of which surfaces are next to a rectangular opening, and of a rod light source positioned in space formed by the reflecting surface which is not of a truly parabolic form but of a quasi-parabolic form and the planar side reflecting surfaces;

• an optical member positioned in front of the reflector, first and second condenser lenses said optical member are formed on both sides of a first reference line crossing the rod light source at right angles substantially at its center in its longitudinal direction;
• and light emitting angle varying means for varying the angle of light emitted through the optical member from the light emitter, characterized in that:
• the optical member is arranged to hardly diffuse light from the rod light source in the direction at right angles to the direction of the length of the rod light source when the distance between the rod light source and the optical member is long and widely diffuses the light when the distance is short.

A strobe light, which changes the angle at which light from a light source illuminates an object, comprising at least a light emitter consisting of a reflector provided with a reflecting surface which is not of a truly parabolic form but of a quasi-parabolic form and planar side reflecting surfaces, all of which surfaces are next to a rectangular opening, and of a rod light source positioned in space formed by the reflecting surface which is not of a truly parabolic form but of a quasi-parabolic form and the planar side reflecting surfaces;

• an optical member positioned in front of the reflector, first and second condenser lenses said optical member are formed on both sides of a first reference line crossing the rod light source at right angles substantially at its center in its longitudinal direction;
• and light emitting angle varying means for varying the angle of light emitted through the optical member from the light emitter, characterized in that:
• the first and second condenser lenses are arranged to have tops, positioned apart from each other by 1/2 or less of the longitudinal dimension of the rectangular opening of the reflector as measured during wide-angle imaging, and curved lens surfaces next to the tops.