In recent years, with the rapid development of science and technology and art, coupled with the increase in cultural tourism night tour projects, the professional term "water screen projection" has begun to appear more and more in the public eye, and is welcomed by the public.
Water curtain projection, also known as fog screen projection, as the name suggests, is to project images on the water curtain or water curtain, using the imaging principle of mirage, with the help of particles in the air to present light and shadow images, so as to bring the audience a unique audio-visual experience.
The imaging factor of water curtain projection lies in the use of the particularity of "water" and the projector equipment with special requirements such as convection lumen light source and beam, when the water body enters the generator, a laminar flow treatment is carried out first, and then the vortex treatment is carried out in reverse to enter the water separator, and then the jet carries out secondary aeration treatment for each water separator.
Its water outlet is a double-layer ring, with a water outlet diameter of 1 mm, and the inner ring adds water to the air according to the principle of jet to make the waterline wrap the air and fall, forming a prerequisite combination of transparency and imaging, which is the key to the water screen projection. It can also be said that water screen projection uses the imaging principle of mirage to present light and shadow images with the help of particles present in the water.
Advantages of water screen projection
1. The picture is huge. Generally, small water curtains are close to 10 meters in length and width, with an area of about 100 square meters; The large water curtain on the surface of the lake, which can be more than 150 meters long and more than 30 meters high, is more vivid than the city's landmark buildings at night. This water curtain can also be adapted to local conditions, such as using local waterfalls and other facilities. The super-large water curtain is incomparable to other technologies.
2. Various forms. There are relatively simple pools, rectangular vertical planes, irregular vertical planes, and 360-degree circular three-dimensional ones.
3. Shocking visual impact. With the ultra-high-power sound effect and the unpredictable laser beam, the mirage-like scene makes the audience near the scene feel the mysterious and fantastic fairyland.
4. Wide audience. You can see not only up close, but also from afar. Of course, the viewing angle is different, and the effect will be very different, such as watching at the lake, watching in a nearby high-rise building, from a distance or aerial photography, etc., in short, you always have a free way to watch a water screen movie.
A common type of water screen projection
01. Water curtain type
The investment is relatively small and easy to maintain, but the disadvantage is that the scene is small and the effect is poor. It will be used for small performances and small advertisements;
02, Water surface type
It is usually projected directly on the surface of a lake, pool, or glass wall filled with water. The advantage is that the effect is relatively good, and the disadvantage is that the venue is too special and the audience is relatively small;
03. Large water curtain
The water curtain we generally talk about is of this type, and the scene is large and there are many audiences. It uses a high-pressure water pump and a special nozzle to spray water at high speed from the bottom to the top, atomizing the water to form a water film "screen" in the air, and laser animations and movies are imaged on the screen after atomization. The advantage is that the scene is the largest, and the disadvantage is that the capital investment is amazing, and the maintenance cost is high. It is generally a temporary performance, and there are few fixed ones Because the screen is a transparent water film, there is a special optical perspective effect when the image is played, and the picture presented has a three-dimensional effect, close to the holographic effect, and the audience's sense of immersion is strong.
Water screen projection application case
Wuhan's first water curtain laser show and the national air defense and earthquake prevention science museum have the largest water curtain laser show in Wuhan, with a total length of 100M, up to 4 floors, using 20W full-color laser, which is also the first large-scale water curtain laser show in China.
The atrium exhibition area of Ningbo City Exhibition Hall is the most important public activity space, with a smart and transparent water curtain animation to show the long history of Ningbo culture, which is very shocking.
The host of the 2024 Chengdu World Horticultural Exhibition, the wonderful water curtain light and shadow show will bring a beautiful feast for the eyes and ears. Through high-definition projection equipment, the water curtain light and shadow show projects elaborate images, animations and videos onto the water curtain, creating a unique visual atmosphere through clever color matching and light and shadow changes, and the rising waterfall and the surrounding natural rocks and pools form a vivid landscape painting.
Egret Lake's 5D holographic reality drama "Obey the Road and Do Righteousness" has been certified by Guinness World Records as the world's largest water screen projection. After the perfect integration of sound, light, electricity and other somatosensory elements, the history and future of Zunyi's development are shown through new content. Under the delicate and colorful water screen projection, the audience's emotions are completely brought into the vastness and magnificence of Zunyi's history. Add a charm of light and shadow technology to the old revolutionary area.
The interactive fog screen designed by the Gwacheon National Science Museum in South Korea casts images of the ocean and space onto water vapor to form a fog screen. The installation is also designed with motion sensors that can interact with the children, sense the children's behavior, and change the image accordingly.
Through the fog curtain, children can have close contact with the bubbles in the sea, and the few deep sea and space scenery are within reach. The airflow of the screen causes the projection screen to fluctuate slightly, and the sea creatures seem to be faintly moving through reality. Children gather in front of this magical screen to explore all this vast unknown.
Water screen projection can play a unique charm in exhibitions, museums, stage performances and other occasions, become the focus of attracting the attention of the audience, and add infinite fun and surprises to the event.
In the future development, with the continuous progress of technology and the continuous emergence of creativity, water screen projection will surely show its extraordinary charm and potential in more fields.