Rotatable Camera Polarization Filter Control
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Solution Overview
Problem
Existing camera apparatuses with polarization filters, such as those used in surveillance cameras, take a long time to set up the polarization filter for optimal imaging, making them unsuitable for applications requiring rapid direction changes while moving.
Innovation Solution
A camera apparatus with a rotatable camera unit and a filter unit that can be switched between a covering and standby state, controlled by a controller using stored posture and filter information to quickly adjust the camera direction and filter position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the polarization filter is positioned at the proper polarization position while being rotated little by little, then the ghost reflection image can be prevented from entering the objective lens system, but it takes a long time to set the polarization filter
Solution Approach 1:
The system pre-stores optimal polarization filter positions and camera imaging directions in a memory unit for various imaging conditions. When imaging is required, the controller directly retrieves and executes these pre-determined settings, eliminating the need for time-consuming manual rotation and adjustment of the filter to find optimal positions.
Solution Approach 2:
The patent replaces the manual mechanical rotation and adjustment process with an automated control system. The controller automatically rotates the polarization filter and adjusts the camera direction based on stored information, substituting human-operated mechanical adjustment with automated motor-driven positioning.
2Adaptability or versatility
If the camera apparatus is provided with a rotating table for moving the imaging direction, then images in various directions can be picked up, but the apparatus is not suitable for applications requiring rapid direction changes due to prolonged setup times
Solution Approach 1:
The system pre-stores optimal camera imaging directions and filter positions for various imaging scenarios in memory. When a direction change is required, the controller immediately retrieves the pre-calculated optimal parameters and executes the positioning, enabling rapid adaptation to different imaging directions without prolonged setup time.
Solution Approach 2:
The system dynamically adjusts both the camera imaging direction and polarization filter position simultaneously based on stored information. This coordinated dynamic adjustment allows the apparatus to quickly adapt to various imaging directions while maintaining optimal polarization settings, improving both versatility and response speed.
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
Enables rapid imaging direction changes and optimal filter positioning, allowing for efficient image capture in various directions without prolonged setup times.
Implementation Method 1
a polarization filter 103, which transmits only a light beam of predetermined polarization component to thereby eliminate an unnecessary light beam
Data Source
AI summary
A camera apparatus includes a rotatable camera unit; a filter unit which is configured to selectively take at least one of a covering state and a standby state, wherein the covering state covers a light incident portion of the camera unit with a filter and the standby state removes the filter from the light incident portion; a controller which is configured to control a rotation of the camera unit and a state of the filter unit; and a memory which stores posture information including a direction of the camera unit and filter information representing at least one of the covering state and the standby state of the filter unit. The controller controls the direction of the camera unit based on the posture information stored in the memory and controls the filter unit based on the filter information stored in the memory.