公开(公告)号：US3858227A

公开(公告)日：1974-12-31

申请号：US32937173

申请日：1973-02-05

Applicant: POLAROID CORP

Inventor： ELLIN S ,  KEE R

IPC: G03B7/16 ,  G03B15/03 ,  G03B15/04 ,  G03B15/05 ,  G03B15/02

CPC classification number: G03B15/05 ,  G03B15/0468 ,  G03B2215/056

Abstract: An adapter arrangement for use with a photographic flash firing circuit of a variety which monitors and senses the ignition of a flashlamp. Upon a successful such ignition, the firing circuit derives a unique output signal condition which is used for post exposure control purposes. The adapter arrangement permits such a circuit to be utilized for actuating an electronic flash unit or the like in place of typical flashlamps. To carry this out, an impedance having a resistance value closely related to that of an igniting flashlamp is incorporated in operational union with a switching arrangement. In one embodiment this impedance is combined with the winding of a relay. The relay serves to actuate the substitute lighting unit, while the resistive impedance serves to simulate the impedance of the igniting filament of a flashlamp. With the arrangement, therefore, the flash firing circuit is capable of developing a necessary unique output signal.

Abstract translation: 一种用于监视和感测闪光灯的点火的各种照相闪光灯电路的适配器装置。 在成功点火之后，点火电路产生用于后曝光控制目的的唯一输出信号条件。 适配器装置允许这种电路用于驱动电子闪光灯组件等来代替典型的闪光灯。 为了实现这一点，具有与点火闪光灯的电阻值密切相关的电阻值的阻抗被结合到与开关装置的操作联合中。 在一个实施例中，该阻抗与继电器的绕组组合。 继电器用于致动替代照明单元，而阻抗阻抗用于模拟闪光灯的点火灯丝的阻抗。 因此，通过这种布置，闪光发射电路能够开发必需的唯一输出信号。