发明名称 AUTOMATIC LIGHT QUANTITY RATIO BRACKETING PHOTOGRAPHING DEVICE
摘要 PROBLEM TO BE SOLVED: To simply and easily set each emitted strobe light quantity, in a photographing with plural kinds of illumination. SOLUTION: A flashing tube 2 and a reflector 3 for adjusting the interval among a Fresnel lens 15, the reflector 3 and the flashing tube 2, so as to obtain an illuminating angle coincident with the focal distance of a photographic lens attached to a camera, can be set to a transmitter and a receiver according to the state of an operation mode input means 8. A flashing device 1 connected to the camera is set in a transmission state and the flashing tube 2 and the reflector 3 constituting a flashing device for actually irradiating a subject in a spatial far position are set in reception states, to be used. In the transmission state, the flashing tube 2 generates a light pulse signal for controlling the emitted light quantity, etc., of each receiver and in the reception state, a photodetector 11 and a receiving means 10 control the light pulse signal for indicating the emitted light quantity, a flashing state, etc., transmitted by the flashing device in the transmission state and a receiving microcomputer 4 controls the flashing of the flashing tube 2, with a flashing control means 16, to attain illumination with a desired light quantity for the subject.
申请公布号 JPH11119283(A) 申请公布日期 1999.04.30
申请号 JP19970293174 申请日期 1997.10.13
申请人 CANON INC 发明人 FUKUI HAJIME
分类号 G03B7/08;G03B7/17;G03B15/05 主分类号 G03B7/08
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