Smartphone Case Optical Viewfinder for Bright Light Photography
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Solution Overview
Problem
Smartphone cameras, lacking dedicated features like viewfinders, face difficulties in bright light conditions due to degraded screen performance and incompatibility with polarized sunglasses, making outdoor photography challenging.
Innovation Solution
A smartphone case with an optical viewfinder assembly that slides between closed and open positions, featuring an aperture with optional lenses or reticle, allowing for framing and shielding the screen from sunlight without obstructing the lens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an LCD/LED screen is used for picture framing, then the device can serve as a multi-purpose smartphone, but the screen performance degrades in bright light conditions making outdoor photography difficult
Solution Approach 1:
The device is segmented into two distinct viewing systems: the LCD/LED screen for indoor/general use and an optical viewfinder for outdoor/bright light use. This segmentation allows each subsystem to be optimized for its specific operating conditions, resolving the contradiction between multi-purpose capability and bright light performance.
Solution Approach 2:
An optical viewfinder acts as an intermediary device that provides an alternative viewing path for the camera. This intermediary system bypasses the limitations of the LCD/LED screen in bright light conditions while maintaining the smartphone's multi-purpose nature, as both systems coexist within the same device.
2Object-affected harmful factors
If the screen is shielded from natural light to improve visibility, then screen visibility improves, but the lens may also be obstructed during photography
Solution Approach 1:
The shielding mechanism is segmented into separate zones: one that covers the screen to block glare, and another that leaves the lens path clear for photography. This spatial segmentation allows selective shielding of the screen without obstructing the lens, resolving the contradiction between glare reduction and lens accessibility.
Solution Approach 2:
The shield structure exhibits local quality by having different properties in different regions: the screen-facing portion provides light blocking to reduce glare, while the lens-facing portion remains transparent or open to allow light transmission for photography. This localized differentiation resolves the contradiction between shielding needs and lens accessibility.
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 effective photography in bright conditions by providing a viewfinder alternative to the screen, improving visibility and reducing screen glare without obstructing the lens, thus enhancing outdoor photography capabilities.
Implementation Method 1
an optical viewfinder assembly having a top portion and a bottom portion, the bottom portion being recessed into the body
Data Source
AI summary
A case for a photographic device with a primary visual interface comprising a screen is disclosed. The case comprises a body, an optical viewfinder assembly having a top portion and a bottom portion, the bottom portion being recessed into the body, and the top portion configured to slide between a closed position, where a top plane of the top portion is substantially flush with a top of the body, and an open position where the top portion is above the top of the body, thereby exposing an aperture in the viewfinder assembly; and a track and a track guide in mechanical communication, wherein one of the track and the track guide is attached to the optical viewfinder, to permit the top portion of the optical viewfinder assembly to slide between the closed position and the open position.