Semi-open type stereo virtual image forming apparatus

Abstract

The invention discloses half-open typed solid virtual image imaging equipment, comprising an imaging device, a reflection film which is formed by a colourless transparent medium, has the optical characteristics of part transparence and part reflection and is obliquely arranged on the optical path of the imaging device, a frame which is used for arranging the reflection film in a certain angle; the external side surface of the frame is also provided with a light screen. The equipment of the invention is also provided with a deep-colour background plate which is arranged at the rear part of the virtual image imaging surface. As the invention is provided with the light screen and the deep-colour background plate, the optical interference of the external light beam on the reflection film is effectively solved; the gray background on the virtual image imaging surface is eliminated under the premise of clear virtual solid, the whole equipment obtains lifelike visible effect during the application, and can be widely applied to the fields such as ads, exhibition, performance, conference, propaganda, etc.

Description

technical field [0001] The invention relates to the field of reflectors for projecting light beams, in particular to an imaging device for projecting images onto an inclined and partially reflecting screen to obtain a three-dimensional virtual image with a sense of depth through the screen. Background technique [0002] In the application fields such as advertising, display, performing arts, conference, publicity, etc., imaging equipment needs to be used frequently. In the past, equipment such as slides or projectors was mainly used to obtain two-dimensional direct imaging. Although the above-mentioned technologies are widely used, they have obvious defects. The second is that when the reporter intervenes between the slide as the image source or the projector and the imaging screen, it will block a part of the light, so that the image cannot be projected on the screen in this area and form a black shadow. [0003] In the prior art, there is also a type of imaging device uti...

AI Technical Summary

Problems solved by technology

The stronger the light generated by a projector with high lumens (greater than 8000 lumens), the stronger the reflected image, and the more three-dimensional the formed virtual image looks, but the gray background color of the non-image area is also more obvious, which reduces the audience's perception of the screen. The perception of existence, and the cost of a high-lumen projector is also high; on the contrary, the cost of a low-lumen projector is reduced, the darker the generated light, the less obvious the gray background of the non-image area, but the lighter the reflected image causes The virtual image formed will also look less three-dimensional, and the visual realism of the virtual image will be less

[0007] In addition, although the tension of the screen in the prior art can be adjusted to a certain extent, the degree of slack of the screen in the actual implementation has subtle differences depending on factors such as the use time and screen size. In the adjustment structure of the prior art, due to tension The belt has flexible characteristics, and it is difficult to achieve the desired effect with a small amount of adjustment of the screen tension, and the degree of retention after adjustment is also poor

The final consequence is that the obtained virtual image is distorted due to the difficulty in maintaining the flatness of the screen

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