Printer-equipped Digital Camera Exposure Display Light Control
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Solution Overview
Problem
Printer-equipped digital cameras that use instant film face issues with blurriness in printed images due to diffused light from exposure displays and increased power load when both image checking and exposure displays are active.
Innovation Solution
Incorporating a first displaying unit with a light exit direction restriction member to focus light onto the instant film and a displaying control unit that switches off the secondary displaying unit during exposure, using liquid crystal displays with backlights, and arranging the displays to minimize power consumption and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the surface of the instant film is exposed using the exposure display, then the instant film can be exposed to create an image, but light from each pixel of the display is diffused, causing blurriness of the printed image
Solution Approach 1:
A light guide plate is introduced as an intermediary component between the exposure display and the instant film. The light guide plate receives diffused light from the display and redirects it to travel along a predetermined path, causing light from each pixel to converge on a corresponding pixel position on the instant film, thereby eliminating image blurriness
Solution Approach 2:
The optical parameters of light propagation are changed by using the light guide plate to transform diffused light into directed light. The light guide plate modifies the light's trajectory and concentration, changing the light distribution pattern from diffuse to focused, which improves image sharpness
2Adaptability or versatility
If both image checking display and exposure display are comprised in the camera body, then both functions can be provided, but power load is increased
Solution Approach 1:
The image checking display and exposure display are merged into a single display unit that can perform both functions. The display is configured to display images for checking purposes and also serve as an exposure source for the instant film, thereby reducing the number of separate display components and lowering overall power consumption
Solution Approach 2:
The display unit is designed with multi-functionality, serving both as an image checking display and as an exposure display. This universal component performs multiple roles: displaying images for review and providing controlled light exposure for instant film printing, thus eliminating the need for separate dedicated displays
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 solution prevents blurriness in printed images and reduces power load by controlling light exit direction and switching off non-essential displays during exposure, resulting in high-quality images and lower power consumption.
Implementation Method 1
a light guide plate that guides light from each pixel of the exposure display along a predetermined path to the instant film
Data Source
AI summary
A printer-equipped digital camera and a displaying control method thereof capable of printing a high quality image and reducing a power load are provided. A printer-equipped digital camera 1 includes a film loading chamber 50 in which an instant film pack 100 is loaded, an exposure display 56, a louver plate 62 that is included on a displaying surface of the exposure display 56, an imaging lens 12, an image sensor 42, and an image displaying display 16, in which an image is recorded on the instant film 110 by displaying the image on the exposure display 56. Displaying of the image displaying display 16 is switched OFF while the image is displayed on the exposure display 56.