Patent Application
20180040261
The present invention relates to a cavity model, and in particular to a human body cavity model, used for projecting images on a 3-Dimentional ear canal model, so that a viewer may observe and learn various symptoms through looking at the images.
Projectors have been used widely for many years, to display static or dynamic images, or the contents stored in a computer. For example, in a meeting held in a big conference room, a projector can be used to project the contents stored in a notebook computer on a display screen, for viewing by a lot of attendees. Or, in a class room, a projector can be used to project teaching video stored in a notebook computer on a display screen, to help proceed with teaching.
In real life, both the internal ear canal and the external ear canal are of a 3-Dimentional shape rather than a planar shape. Therefore, for the type of planar image teaching tool, it is rather difficult to be familiar with the actual symptoms of the ears, as such adversely affecting the efficiency and effectiveness of teaching.
Therefore, presently, the design of the image projection device is not quite satisfactory, and it leaves much room for improvement.
An embodiment of the present invention is to provide a human body cavity model, comprising: a first cavity, including a laser projector disposed at a first rear end, wherein the laser projector comprises an MEMS (micro-electromechanical system) scanner for projecting a scanning light beam, and reflection mirror disposed at a first front end to reflect the scanning light beam; and a second cavity, comprising a second cavity chamber, while a second front end of the second cavity chamber is provided with a viewing port, and a second rear end of the second cavity chamber is provided with an imaging plane, such that the scanning light beam is reflected by the reflection mirror onto the imaging plane.
The related drawings in connection with the detailed descriptions of the present invention to be made later are described briefly as follows, in which:
The purpose, construction, features, functions and advantages of the present invention can be appreciated and understood more thoroughly through the following detailed description with reference to the attached drawings.
Refer to
The second cavity 21 is disposed in a position opposite and corresponding to the first cavity 11. In the second cavity chamber 213 of the second cavity 21, a channel is formed in an ear canal. And in the second cavity chamber 213 of the second cavity 21, a viewing port 211 is disposed at the second front end, and an imaging plane 22, such as a screen, is disposed at the second rear end. Therefore, the scanning light beam reflected by the reflection mirror 15 is able to pass through a passage port 212 at the bottom of the second rear end, to be projected to the imaging plane 22 in the second cavity chamber 213 of the second cavity 21.
Refer again to
In an embodiment, the reflection angle of the reflection mirror 15 is 30 degrees backward.
Also, in an embodiment, there can be no gap between the first cavity 11 and the second cavity 21.
Further, in an embodiment, light reduction element 13 can be a polarizer.
The above detailed description of the preferred embodiment is intended to describe more clearly the characteristics and spirit of the present invention. However, the preferred embodiments disclosed above are not intended to be any restrictions to the scope of the present invention. Conversely, its purpose is to include the various changes and equivalent arrangements which are within the scope of the appended claims.
