Imaging System Illumination Direction Control for Lens Type Adaptation
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Solution Overview
Problem
Conventional imaging apparatuses determine whether to perform bounce light emission shooting based on the proportion of a high reflective area without considering the type of interchangeable lens, leading to unsuitable conditions, such as when a super-telephoto lens is attached, causing light from the illumination device to not reach the subject.
Innovation Solution
An imaging system that includes an illumination device capable of automatically changing its radiation direction, acquiring information about the attached lens unit, and controlling the radiation direction based on this information to optimize bounce light emission shooting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bounce light emission shooting is determined based on the proportion of high reflective area, then the imaging apparatus can automatically identify suitable shooting conditions, but it may incorrectly determine bounce light emission shooting when a super-telephoto lens is attached and light cannot reach the subject
Solution Approach 1:
The patent changes the determination parameter from the proportion of high reflective area to the focal length of the lens. By using focal length information, the system can accurately determine whether bounce light emission shooting is suitable, preventing incorrect determination when a super-telephoto lens is attached where light cannot reach the subject.
2Device complexity
If the imaging apparatus does not consider lens type, then the control system remains simple, but light from the illumination device may not reach the subject when a super-telephoto lens is used
Solution Approach 1:
The patent introduces lens type information as an intermediary factor in the control decision. By acquiring and considering lens type information, the control unit can make accurate determinations about whether to perform bounce light emission shooting, ensuring light reaches the subject effectively without significantly complicating the overall control system.
Data Source
AI summary
To enable light emission shooting according to the condition of an imaging apparatus, an imaging system, which includes an illumination device capable of automatically driving a movable portion including a light emission unit to change a radiation direction of the light emission unit and an imaging apparatus, includes an acquisition unit configured to acquire information classifying a lens unit attached to the imaging apparatus, and a control unit configured to control the radiation direction of the light emission unit based on the information classifying the lens unit acquired by the acquisition unit.