Monocular 3D Camera Zoom Stabilization
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Solution Overview
Problem
Monocular 3D cameras employing the pupil division system experience variations in stereoscopic effect during zoom operations, causing discomfort for photographers due to changes in parallax and depth of field, which existing techniques fail to address effectively.
Innovation Solution
A monocular stereoscopic imaging device with a zoom lens and diaphragm system that adjusts the aperture and focus distance to maintain a constant stereoscopic effect by controlling the diaphragm and zoom lens movements, using a controlling unit to synchronize these adjustments and minimize aperture changes during zoom operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the zoom lens is moved to change focus distance, then the angle of view is adjusted, but the stereoscopic effect varies causing photographer discomfort
Solution Approach 1:
The patent changes the aperture parameter in response to zoom lens movement to compensate for stereoscopic effect variations. When the zoom lens moves to change the angle of view, the aperture is adjusted accordingly to maintain a substantially constant stereoscopic effect, thereby resolving the contradiction between zoom adaptability and stereoscopic stability
Solution Approach 2:
The controlling unit monitors the zoom lens position and automatically adjusts the aperture based on the detected zoom state. This feedback mechanism ensures that the stereoscopic effect remains stable during zoom operations by continuously adapting the aperture parameter to counteract changes in the optical path
2Stability of the object's composition
If the aperture is changed to maintain constant stereoscopic effect, then the stereoscopic effect is stabilized, but the exposure conditions change
Solution Approach 1:
The controlling unit provides coordinated control of both aperture and shutter speed based on zoom lens position. When the aperture is adjusted to maintain constant stereoscopic effect, the shutter speed is simultaneously modified to compensate for exposure changes, ensuring that the overall exposure remains appropriate while the stereoscopic effect is stabilized
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
The device maintains a substantially constant stereoscopic effect during zooming, reducing photographer discomfort by stabilizing the parallax and depth of field, even when the zoom lens is moved, thereby enhancing the imaging experience.
Implementation Method 1
dividing a luminous flux having passed through the single taking lens into multiple luminous fluxes (pupil division) so as to photograph a parallax image
Implementation Method 2
an imaging optical system including a zoom lens and a diaphragm; a zoom lens driving unit configured to move the zoom lens
Implementation Method 3
a diaphragm driving unit for driving the diaphragm so as to change a degree of aperture of an aperture of the diaphragm
Implementation Method 4
a display unit configured to recognizably display the left-eye image and the right-eye image as a three-dimensional image
Data Source
AI summary
The monocular stereoscopic imaging device according to one aspect of the presently disclosed subject matter includes: an imaging optical system including a zoom lens and a diaphragm; a pupil dividing unit configured to divide a light flux having passed through a imaging optical system into multiple light fluxes; an imaging unit configured to receive the multiple light fluxes, so as to continuously acquire a left-eye image and a right-eye image; and a controlling unit configured to control a zoom lens driving unit to move the zoom lens in accordance with an instruction of changing the focus distance, and configured to control the diaphragm driving unit to maintain at a substantially constant level a stereoscopic effect of the left-eye image and the right-eye image three-dimensionally displayed on a display unit before and after the zoom lens is moved.