Imaging Apparatus Rack Focus Control via Pre-calculated Lens Positions
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Solution Overview
Problem
Existing imaging apparatuses lack the ability to effectively incorporate a preferable rack focus effect into moving image data, which is essential for creating visually appealing and cinematic experiences.
Innovation Solution
The imaging apparatus includes an imaging unit, a focus lens, and a controller that allows users to set multiple focus points, enabling the apparatus to smoothly transition between focus positions during video capture, thereby adding a rack focus effect to moving image data by calculating and adjusting the focus lens positions based on user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the imaging apparatus captures moving images without pre-calculating focus positions, then the operation simplicity is maintained, but the rack focus effect quality deteriorates
Solution Approach 1:
The controller calculates and stores focus position information for multiple focus points before the user captures moving images. This preliminary calculation of focus positions corresponding to different object distances allows the apparatus to execute rack focus effects quickly during capture without compromising operation simplicity.
2Adaptability or versatility
If the imaging apparatus uses a single focus point, then the device complexity is reduced, but the versatility of focus control deteriorates
Solution Approach 1:
The imaging apparatus enables users to set multiple focus points (first focus point, second focus point, etc.) with different object distances. The controller calculates corresponding focus positions for each focus point, allowing a single device to handle various focus control scenarios including rack focus effects, thereby achieving multi-functionality without requiring separate specialized devices.
3Adaptability or versatility
If the imaging apparatus transitions focus during moving image capture, then the rack focus effect is achieved, but the focus stability deteriorates
Solution Approach 1:
The controller calculates all necessary focus position information before moving image capture begins. By having focus positions for multiple focus points pre-computed and stored, the apparatus can smoothly transition between focuses during capture without real-time calculation delays or instability, ensuring both rack focus effect and focus stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables the imaging apparatus to capture and display moving images with a professional-grade rack focus effect, ensuring a smooth focus transition and enhancing the visual storytelling aspect of short-time moving images.
Implementation Method 1
a focus lens for focusing the object image onto the imaging unit
Data Source
AI summary
An imaging apparatus in the present disclosure includes an imaging unit for capturing an object image and generating image data, a focus lens for focusing the object image onto the imaging unit, an operation unit for receiving an instruction of a user, and a controller. The operation unit can set a first focus point and a second focus point that is different from the first focus point. The controller obtains information on a first focus position that is a position of the focus lens to focus on an object image at the first focus point and a second focus position that is a position of the focus lens to focus on an object image at the second focus point, before receiving from a user an instruction for capturing a moving image.