Dark slide opening device for camera viewfinder protector
A technology for protecting a device and an opening device, which is applied to the camera body, camera, viewfinder, etc., can solve the problems of easy dust accumulation in the viewfinder, inability to see the image on the viewfinder screen, and dust accumulation in the viewfinder window.
Inactive Publication Date: 2009-03-18
田永忠
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the multi-down view finder, if there is no corresponding protection device, it will definitely cause dust accumulation and damage in the viewfinder window, and the accumulated dust is not easy to clean, and even the image on the viewfinder screen cannot be seen clearly under the interference of strong light. Seriously affect the viewfinder effect
In the liquid crystal viewfinder of digital cameras that have become popular in recent years, because the liquid crystal viewfinder is directly exposed, the above-mentioned dust accumulation and scratches are more serious problems compared with the old-fashioned 120 cameras
At the same time, due to the characteristics of the liquid crystal viewfinder, the observation effect is not good when viewed from the side. This phenomenon is more serious in places with strong sunlight.
In addition, in the old-fashioned 120 cameras, the opening and closing of the visor in the overlooking viewfinder needs to be operated manually, and the simple and convenient operation cannot be realized through buttons or other methods, which brings inconvenience to the use
For example: during the interval between two shots, most users leave the visor open, causing dust to accumulate in the viewfinder
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] Below in conjunction with accompanying drawing, the present invention is further described:
[0012] like figure 1 -shown in 4, in the present embodiment, according to the model of corresponding camera, especially the size of the viewfinder, the shape and the size square hole of the viewfinder reserved in the frame 3 of the protective device are set, and the square hole is the viewfinder , and two shading plates 4 and cover plates 5 are respectively arranged correspondingly on the four sides of the above-mentioned square hole. The above-mentioned shading plate 4 is installed on the inner side, and the installation position of the cover plate 5 is slightly higher than the position of the shading plate 4. The above-mentioned shading plate The connection of plate 4 and cover plate 5 with frame 3 all adopts the connection mode of hinge, and the scope of limiting its rotation is about 90 degrees, and the upper edge of cover plate 5 is provided with flange 10, and described f...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a light screen automatic open-close device for protecting camera viewfinder window which comprises: mount and light screen open spring, on the mount being provided with a long hole which has light screen board connected on its edge with hinge, a restoring spring is provided at the hinge site, setting spring from two direction, realizing the automatic open and close of light screen board by pressing key or other way to cancel or adjust the action force way of one group of springs. The light screen board can be opened or closed automatically by controlling start and reset keys by employing setting the reset and start springs at the same time, and by adjusting elastic function of reset and start spring via stop board and press-key.
Description
technical field [0001] The invention belongs to the field of camera auxiliary devices, and is particularly suitable for an automatic opening and closing device for a protective device light shield used to protect a viewfinder display window of a camera. Background technique [0002] Camera is an indispensable device in people's life now, adding many happy moments to life and recording colorful life. As cameras have grown in popularity, so have auxiliary devices that provide them with various additional functions. The viewfinder of a camera is its main component, but in the process of use, people usually first maintain and take care of the lens, and few people protect the viewfinder, so after a period of use, the viewfinder may fall off. It is full of dust, and sometimes there are scratches in some viewfinder windows. The above-mentioned phenomenon is common in previous 120 cameras. In the multi-down view finder, if there is no corresponding protection device, it will defi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G03B13/02G03B17/00
Inventor 田永忠
Owner 田永忠