I can't imagine that yesterday everyone had so much interest in this extremely boring SolidWorks.
So today I'll talk about what iN is doing. (Bad Tail Warning)
According to the character of iN, it is rarely planted by some things, the main reason is that it is also because of itself, and the things that are often purchased are fixed so many brands of products, which are rarely replaced, so the possibility of planting grass is not large.
But last August was planted with grass by the blue sky lamp. The earliest was not the easy to come blue sky lamp, but an Italian brand called COELUX.
The concept of sky simulation lamps and lanterns first proposed by their family is as if a skylight is opened at home to let the light sprinkle into the room like sunlight, and the lamp body also presents the blue effect of the blue sky like a glass window.
This effect makes people look particularly cool.
You have to plant grass.
How dead hearted? Look at the picture!
The total height of the lamp in the ceiling mentioned in the installation manual of this lamp is 965 mm, and with the heat dissipation requirements, the duty-off height of the lamp has reached 1210. This is completely unsuitable for our housing conditions, unless you have a large villa that can sacrifice 1 meter 2 floor height to install this lamp, in addition to suitable for friends within 1.3 meters in height.
Yesterday, when iN was showing you the SolidWorks drawings of his house, someone may have noticed that there was a fixed projector on the roof of the living room, which led to the inability to install any chandeliers in the living room, and even the light strips surrounding the room would leave a nasty shadow on the ceiling. This is also a problem that the hanging projector is basically unsolved, and it has been bothered for a long time. Its practical way of oblique lighting to solve the lighting problem is the optimal solution.
Two days ago, Yilai also began to sell "blue sky lamp", this lamp is similar to the Italian one, but the light path design has been optimized, so that the installation height of the lamp can be within 17 cm. This is a good thing, but the bad thing is that the size of this lamp is only 30X60 cm.
This skylight is too small, and to put it bluntly, if such a lamp is installed in the home, it is completely a feeling of looking at the skylight in the prison, which is very undignified!
According to the custom of iN, if you can't buy what you want, you will make it yourself.
Briefly speaking, the two basic technical principles of sky lanterns:
The first is that the parallel light source to obtain parallel light is a relatively simple thing, in our lives often have a flashlight at home, the flashlight reflector bowl is a parabolic surface.
Junior high school physics tells us that any light emitted at the focal point of the parabolic mirror will form a parallel light on the other side of the axis of symmetry.
As long as you have a large enough parabolic mirror, you can create a directional light.
The second is the blue light of the lamp body, which is the same as the blue sky on the ground, called "Rayleigh scattering", which is caused by the scattering of light due to the suspension particles less than 10 times the wavelength. The suspended particles in our atmosphere are usually 5-30 nanometers, and the particles at this scale are the most obvious scattering of blue light, so the sky is blue. Knowing this truth, causing enough blue light scattering on the optical path can make the lamp body show a blue effect without significantly affecting the lighting effect.
Now that you know the principle – let's do it. This project opened this afternoon. The first is to do the design of the lamp body, or SW directly start the finish:
First set the direction of a optical axis, and then determine a maximum height ratio, so as not to accidentally make your own lamp into an Italian effect when designing.
Then a parabolic surface is formed in this scale range, and this parabolic surface is the parallel light mirror we want to make.
Then it is to design the support structure of this parabolic mask, so that the support structure establishes support along the direction of the parabolic mask.
After the establishment, a marker is made according to the position of the parabolic focus, and the iN is not much calculated, and a cylinder is directly generated on the focus axis, forming a projection relationship with the civilians supporting the parts.
Now it's time to polish the outer skeleton that supports the reflective film. This look is very ugly. And the final molding is too low.
Let's take a look at the fit, which is the core main part of the skylight.
After the calculation, the corners are cut a little, and then the position of the outlet is calculated, so that a large outlet of 1.2 meters X 45 centimeters can be obtained.
Then put this semi-finished product in the ceiling of the room to calculate whether the position is appropriate.
The subsequent processing is to generate the support, and then the fixed rod between the support is also generated.
When generating supports, I also made the window effect of the light outlet by the way.
Now what you see is a simple optical path structure. Because it is made by itself, it does not necessarily have an ideal angle after factory processing, so two hanging ears are added to the position of the lamp board, so that the light plate can be rotated relatively freely on the hanging shaft, so that the effect of light can be slightly adjusted when installing.
This work done at noon dinner and meals has basically been designed by now.
As for the effect of blue sky, its practical 5 nanometer-30 nanometer titanium dioxide powder can be distributed. It has been decided that after the titanium dioxide arrives, we will talk about the next things.