Vari-Angle Display Brightness Control for Bulb Shooting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electronic cameras with live-view functions lack the ability to verify image brightness during bulb shooting, as the backlight must be controlled to avoid influencing exposure, leading to reduced user convenience.
Innovation Solution
An imaging apparatus with a vari-angle display unit that adjusts its brightness based on orientation, turning off the backlight when the display is oriented towards the subject to prevent light interference with image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the backlight is turned on to allow image verification during bulb shooting, then user convenience is improved, but light interference with image capture occurs
Solution Approach 1:
The display unit is made movable with respect to the camera body, allowing the user to adjust the display orientation dynamically. When the display is oriented away from the subject direction, the backlight can be fully illuminated for convenient image verification. When oriented toward the subject, the system automatically reduces brightness or turns off the backlight to prevent light interference with the imaging lens.
Solution Approach 2:
The brightness parameter of the display unit is dynamically adjusted based on the display orientation. The control unit detects the orientation angle and automatically modifies the backlight intensity - reducing or eliminating brightness when the display faces the subject, while maintaining full brightness when oriented away from the subject direction.
2Manufacturing precision
If the backlight is controlled not to turn on in macro shooting mode to avoid influencing exposure, then image quality is maintained, but user convenience is reduced
Solution Approach 1:
The display unit's movable capability allows it to be positioned at various angles relative to the camera body. In macro shooting mode, the user can orient the display away from the subject to enable backlight illumination for convenient image verification, while the imaging lens remains unaffected by display light.
Solution Approach 2:
The solution moves the problem from a one-dimensional on/off backlight control to a three-dimensional spatial orientation problem. By utilizing the angular dimension, the system allows backlight illumination in orientations that do not interfere with the imaging path, effectively resolving the contradiction between visibility and exposure quality.
Data Source
AI summary
An imaging apparatus includes an imaging unit that captures an image of a subject, a display unit that displays the captured image on a display screen and is moveable so as to change the orientation of the display screen, and a control unit that controls the brightness of the display screen based on the orientation of the display screen. When a predetermined shooting mode is set and the display screen is oriented toward the subject, the control unit lowers the brightness of the display screen compared to a brightness when the display screen is not oriented toward the subject.