Self-adaptive detection circuit for trigger signal of fill-in light
A self-adaptive detection and trigger signal technology, which is applied in the direction of measuring electricity, measuring electrical variables, optics, etc., can solve the problem of signal mismatch between supplementary light and camera equipment, and achieve the solution of trigger signal incompatibility, strong applicability and reliability sex high effect
Pending Publication Date: 2020-06-23
杭州方千科技有限公司
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[0006] The embodiment of the present invention provides an adaptive detection circuit for the trigger signal of the supplementary light, which is used to solve the problem of signal mismatch between the existing supplementary light and the camera equipment
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.
[0030] figure 1 A schematic diagram of an adaptive detection ...
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The embodiment of the invention discloses a self-adaptive detection circuit of a trigger signal of fill-in light. The adaptive detection circuit of the trigger signal of the fill-in light comprises asignal isolation circuit used for isolating an input external signal, a logic control circuit and a control unit, wherein the logic control circuit is connected with the signal isolation circuit and is used for converting the external signal into a level digital signal; the control unit is used for controlling on and off of the logic control circuit and a duty ratio of the level digital signal soas to determine a signal type of the external signal; and according to the signal type of the external signal, on and off of the fill-in light are controlled. The circuit is low in cost, high in reliability and high in applicability, a problem that an existing fill-in light is incompatible with the trigger signal of camera shooting equipment can be effectively solved, and great convenience is brought to use of a user.
Description
technical field [0001] The invention relates to the technical field of imaging equipment, in particular to an adaptive detection circuit for a trigger signal of a supplementary light. Background technique [0002] In actual application, the existing supplementary light needs to be triggered synchronously with the camera equipment to provide sufficient shooting brightness for the camera equipment. Existing cameras have many types of trigger signals, including signals with different switching values and level values. Therefore, it is required that the fill light can be synchronized with different trigger signals. [0003] At present, most manufacturers need to first confirm the type of trigger signal before supplying the supplementary light, and then provide the supplementary light corresponding to the type of trigger signal. However, some projects require the use of fill lights with different trigger signal types from multiple manufacturers. [0004] If the supplementary ...
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Login to View More IPC IPC(8): G01R29/02G01R29/027G01R1/30G03B43/00
CPCG01R29/02G01R29/027G01R1/30G03B43/00
Inventor 朱广虎贾诗豹张淳
Owner 杭州方千科技有限公司