Built-in Polaroid Switching Mechanism for Compact Camera Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera designs with external polaroid switching mechanisms result in complex integral structures, reduced system reliability, increased maintenance, and bulky components due to the need for larger polaroids to match the object lens.
Innovation Solution
A camera with a built-in polaroid switching mechanism, where the polaroid is integrated inside the camera body, utilizing a sliding seat and micromotor-driven gear system to switch between polarized and visible light filters, with an elastic guide rail for precise positioning and automatic wear compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the polaroid switching mechanism is placed outside the lens, then the polaroid can be easily accessed and replaced, but the integral structure becomes complex, system reliability decreases, and maintenance workload increases
Solution Approach 1:
The polaroid switching mechanism is nested inside the camera body, with the polaroid filter integrated into the existing optical path structure. This internal integration simplifies the overall integral structure while maintaining system reliability, as the mechanism is protected within the camera housing rather than exposed externally.
2Ease of operation
If the polaroid switching mechanism is placed outside the lens, then the polaroid can be easily accessed, but the size of the polaroid must match the object lens or be larger, making the switching mechanism bulky
Solution Approach 1:
The polaroid filter is nested within the camera body's optical path, utilizing the existing space efficiently. This eliminates the need for the polaroid to match the larger object lens dimensions, as it only needs to cover the image sensor area, significantly reducing the volume of the switching mechanism.
Solution Approach 2:
The polaroid switching mechanism operates in a different dimensional space within the camera body, utilizing the depth and internal volume rather than requiring external surface mounting. This allows for a compact design that fits within the camera's existing structure.
3Ease of operation
If the polaroid is placed outside the lens, then it can be easily accessed, but dust accumulation occurs and plastic parts age faster
Solution Approach 1:
The polaroid filter is nested within the protected internal environment of the camera body, isolated from external dust and environmental factors. This internal placement prevents dust accumulation on the polaroid surface and protects the plastic components from UV exposure and oxidation, thereby preventing aging.
Solution Approach 2:
The camera body structure acts as an intermediary barrier between the polaroid filter and the external environment. This protective enclosure prevents direct contact with dust particles and environmental elements that would otherwise cause degradation and aging of the polaroid and surrounding components.
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 design reduces the volume of the switching mechanism and camera size, enhances reliability by isolating the polaroid from external factors, and prevents dust accumulation while enabling automatic and precise polaroid switching for clearer images.
Implementation Method 1
the elastic guide rail is in sliding fit with the sliding side and exerts pushing force onto the sliding side
Implementation Method 2
the drive device is a micromotor, an output shaft of the micromotor is fixedly mounted with the output gear
Implementation Method 3
the driving side is provided with a rack meshed with an output gear of the drive device
Implementation Method 4
a rear end of the CCD image sensor is bonded with a heat sink
Data Source
AI summary
The invention discloses a camera with a built-in polaroid switching mechanism, including a polaroid switching mechanism and a camera body, wherein a front end of the camera body is provided with a front cover, the front cover is provided with a light aperture, the polaroid switching mechanism is located behind the front cover and inside the camera body, behind the polaroid switching mechanism is provided a CCD image sensor, which directly faces the light aperture and fixes onto a CCD circuit board, a rear end of the CCD image sensor is bonded with a heat sink, and the camera body is further internally equipped with a main circuit board electrically connected with the CCD circuit board. In the invention, the polaroid switching mechanism is integrated inside the camera, thereby facilitating to reduce the volume of the switching mechanism and the camera. Moreover, the built-in design of the polaroid switching mechanism isolates an integral structure from the outside, thereby delaying the aging of plastic parts in the switching mechanism and solving the problem of dust prevention of a polaroid.