We have a 24V and 1 A power adapter. To integrate our circuit, we used a 7812 Voltage Regulator to power the two led stripes which need 12v dc, and a 7805 Voltage Regulator to power the Arduino UNO. We also used a TIP120 to control the 24v ultrasonic fog maker.
Everything works fine, we also add two extra heatsinks on the TIP120 and 7812 Voltage Regulator, as they are getting super hot when operating.
For the fabrication part, we bought a clear acrylic tube, and laser cut the base for the container, a base for the ultrasonic fogger, also a lid over the fogger to minimize water splash. To seal the bottom, we used epoxy, and we used silicon and heat shrink tube to seal our led strips too.
After putting everything together, we found that the lid that used to prevent water splash, also trap the fog at the same time. Therefore, we had to remove that. Also, when operating after 10 mins, the 7812 Voltage Regulator is getting super hot, and our led strips start to flicker. We made the decision to use two separate adapters and only have the 7805 to power the Arduino.
To avoid water splash without trapping the fog, we design a different lid. The fog is slowing coming out of the center tube and moving gently.
We also recorded the lamp without the lid. However, we actually find that the water splash is interesting, and the movement of the fog is more obvious too. The Arduino will control the ultrasonic fog maker, if the humidity of the room is reaching a certain number, the ultrasonic fogger will be turned off. And when the water level is below a certain point, the fog maker will also turn off.
I think this spot probably has the best lighting on the 4th floor. First, this little corner is probably one of the darkest corners on the floor, and The light cast a pretty shadow on the wall. And the light is behind the stair, the contrast between the dark and bright area is really interesting.
The hallway near the IMA area also has amazing lighting. The glass hallway makes an interesting reflection of the light outside, and the class only got few spotlights on, the contrast between the darker classroom and hallway is also interesting. The tone of the light inside is cooler than the outside.
Some process of our final project. Our light right now will have three parts. The top will be the mist created by the ultrasonic fog maker. In the middle, all electronic components and led strips will be hiding in here, and half cover with water. There will be two led strips one facing up to the fog and one facing down to the water, also the ultrasonic fog maker will be hidden here too. The bottom will be just pure water.
During the light observation assignments this semester, I observe many stunning moments when fog or mist diffused the light. I am obsessed with the fog and I really want to use that for my final assignment.
I did some research and decided to use ultrasonic fog maker to generate the mist, which is more sustainable and safer. I want to use a glowing geometric shape inside the fog, similar to the above pictures.
One thing I am still experimenting with is the light source and the interaction. I bought so EL panel and wires.
With EL wires, I can easily make the shape I like, and it is waterproof, but I have much less control over the EL wires.
For the actual piece, I want to have a clear rectangle box and place the water and ultrasonic fogger at the bottom. Then, hang my neon like the moon from above.
This picture was taken in Sanya, China. Due to the wind, the water is moving and create this caustic reflection at the bottom of the swimming pool. According to the Wiki, this is called rippling caustic reflection which ” are commonly formed when light shines through waves on a body of water.” Since the water waves are constantly moving therefore, the pattern of the light and shadow is also changing all the time, which is really interesting.
I found many restaurants have interesting and nice lighting, especially those fine dining restaurants. There are lights to brighten the overall areaUsually, the overall brightness is controlled at a lower level to create a sense of privacy, but bright enough so that customers are able to see each other and communicate. Also there are usually some directional lights or even some spotlight to highlight the table, which make the presentation of the dishes really stands out, and also make custmer earsiler to see their dishes.
Another interesting is, the culture difference can also be obsevered through restaurant dining. In chinese restaurant, people are used to shared foods, therefor, the center of the table are usually lightend up, which you can see in the pictures I took. However, in most of western restaurant, foods are not shared, so the lighting is focus on the plates in front of each guests.
Nianqi and I really like the infinity mirror, therefore we decided to make an infinity mirror light fixture.
The hardest part for us isn’t creating the infinity mirror effect, but find a good diffuser to diffuse led strip in a tiny space.
We tried frosted acrylic, fabric, wool, slim and somehow we walked into a candy shop and got some candies, which turned out to be great diffuser for our projects. We tried gummy bear and crystal-like candies.
Since we have around 62 neon pixels, we get a 5V 2 amp adapter to power the strip.
The interaction is very straightforward. We want to surprise people, so we turned off all the lights and hide the crystal cave. Therefore, When people are far away, they will just saw a mirror, but when getting closer, the Crystal Cave will light up and become brighter or dimmer depends on the distance.
I took this picture on Monday. The crazy heavy snow diffused the blue light. In fact, the whole sky was painted blue due to that lighting, and the pictures do not represent that correctly. Just like fog, the snow makes it harder to see, but it really makes light stands out.
This picture was taken a while ago. The layers are really interesting, I was not able to check the backside of that light fixture. I was guessing that there are layers of plastic sheet in the different shape placed in front of the light source. I really like the idea of diffusing the reflection of the light instead of using diffusers.
The picture was taken right outside the Tisch Building. The natural lighting is dramatic. Since the sun is almost right above the head, the shadow is close to the objects. Also, the right half of the street is in dark, since the buildings blocked the sunlight. The strong contrast is much more obvious in the camera. The difference between what I observe with my eyes and the picture is also interesting. Since I tried to avoid overexposing the sky, the shadow area seems much darker. However, in order to avoid underexposure, the sky would have been overexposed.
The picture was taken at night. The sky is very dark. The smog comes out of ground diffused the bright street light. The smog is very close to the street light and the light is very direct, so that makes the street light look like when the sun hides behind the cloud. The bottom part of the smog is slightly red, which is reflecting the traffic light behind.