Universal Lens Adapter With Focal-Plane Tilt-Shift Rotation
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Solution Overview
Problem
Existing camera lenses that provide 'Tilt-Shift' effects are limited in versatility, require specific types of lenses, and cause image deformation due to rotation around an intermediate point rather than the focal plane, restricting artistic and technical choices and combinations of effects.
Innovation Solution
A universal device that allows independent and combined movements of the optical plane relative to the focal plane, with rotations centered on the focal plane, enabling 'Tilt', 'Swing', and 'Shift' effects, adaptable to any lens and camera type, without image deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If specific Tilt-Shift lenses are used to achieve inclined focal plane effects, then the focal plane can be inclined to adapt to the subject, but the lens selection is greatly limited and artistic choices are restricted
Solution Approach 1:
The patent creates a universal lens adapter that can be mounted on any camera and works with any lens type. The adapter incorporates the Tilt-Shift mechanism independently of the lens, allowing standard lenses to achieve inclined focal plane effects. This eliminates the need for specialized Tilt-Shift lenses while maintaining full compatibility with various lens characteristics such as luminosity, depth of field, and focal distance.
Solution Approach 2:
The invention separates the Tilt-Shift function from the lens itself by placing the inclination mechanism in a独立的adapter device. This segmentation allows the lens to remain simple and universal while the complex Tilt-Shift capabilities are housed in the adapter, which can be attached to any camera-lens combination.
2Ease of operation
If the lens rotates about an intermediate point between it and the sensor, then Tilt effects can be achieved, but the projected image deforms and perspective lines do not emerge from the focal plane
Solution Approach 1:
The patent introduces an intermediary element - a movable platform or carrier that holds the lens and can be tilted independently. This intermediary structure allows the lens to rotate about the focal plane rather than an intermediate point, maintaining proper perspective geometry. The platform acts as a mediator between the camera body and the lens, enabling accurate Tilt effects without image deformation.
3Device complexity
If conventional cameras with fixed parallel focal plane are used, then the structure is simple, but the focal plane cannot adapt to inclined subjects and depth of field is limited
Solution Approach 1:
The invention transforms the static, fixed focal plane of conventional cameras into a dynamic, adjustable system. The adapter allows the focal plane to be tilted at various angles relative to the sensor, enabling adaptation to inclined subjects. The mechanism provides continuous adjustment capability while maintaining a relatively simple overall structure when not in use.
Data Source
Figure 1a~1b
Figure 2~3
Figure 4~5
AI summary
It consists of a frame (1) for fixing the camera body (2), from whose sides emerge two forks (5) that end in respective articulations (6) for a bridge (7-7') with an inverted "U" configuration, so that the imaginary axis that joins the two joints coincides with the focal plane or sensor of the camera (2). The articulations (6) include means for regulating the inclination of the bridge (7-7'), as well as guiding means (9) for axial displacement of the lateral arms (7') of the bridge, while the beam (7) has longitudinal guiding means (11) for a carriage (12) that is associated below a rotary base (14), whose axis of rotation coincides with the focal plane or sensor of the chamber (2). The rotary base (14) has guide means for a support (17) on which the lens (18) is fixed.