Rotating Lens Apparatus for Variable Baseline Length
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Solution Overview
Problem
Conventional three-dimensional imaging lens apparatuses have limited flexibility in changing the baseline length, which restricts the range of the three-dimensional effect and requires physical movement of optical systems or diaphragm adjustments, limiting the variability of the baseline length.
Innovation Solution
The lens apparatus includes two optical systems that rotate around axes parallel to a third optical axis, allowing the distance between the first optical axes to change while maintaining the side-by-side relationship, thereby adjusting the baseline length without moving the image positions on the image sensor, enabling a wider range of baseline length adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the distance between the right optical system and the left optical system is increased to enhance the three-dimensional effect, then the baseline length increases, but the images cannot be separated beyond the light receiving range of the image sensor and the two images cannot be close to each other so as to overlap each other
Solution Approach 1:
The patent applies the dynamics principle by making the optical systems rotatable around the third optical axis. The first and second optical systems can rotate in opposite directions, dynamically changing the baseline length between their first optical axes while maintaining their positions relative to the image sensor. This dynamic adjustment allows the baseline length to be varied within a wide range without moving the image positions off the sensor or causing overlap.
2Adaptability or versatility
If the optical systems are decentered relative to their optical axes to change the baseline length, then the baseline length can be adjusted, but the variable range of the baseline length is limited to a range of the open diameter of the diaphragm
Solution Approach 1:
The patent applies the dimensionality change principle by introducing rotation around the third optical axis as an additional degree of freedom. Instead of limiting baseline length adjustment to diaphragm opening changes (one dimension), the system uses rotational movement of the optical systems (another dimension) to achieve a much wider baseline length range. This rotational dimension allows the first optical axes to be separated or brought closer without constraining the adjustment range by the diaphragm diameter.
Data Source
AI summary
A lens apparatus includes a first optical system, and a second optical system disposed in parallel with the first optical system. Each of the first optical system and the second optical system includes, in order from an object side to an image side, a first optical axis, a second optical axis, and a third optical axis. When each of the first optical system and the second optical system rotates around an axis parallel to the third optical axis, a distance between first optical axes of the first optical system and the second optical system changes greater than a distance between third optical axes.