Recent content by Arian DP

  1. A

    Graduate How Can a Lens Microstructure Alter LED Light Wavelengths?

    @sophiecentaur: Yes, I want a color change but not a significant change. In example I want to change a normal blue to a blue sky. Is it still possible?
  2. A

    Graduate How Can a Lens Microstructure Alter LED Light Wavelengths?

    @sophiecentaur: I also got some reference said that the frequency will be constant/not change. But the wavelength and the wave speed change from medium to other medium.
  3. A

    Graduate How Can a Lens Microstructure Alter LED Light Wavelengths?

    @mfb: Does it mean the output wavelength of LED light will not change?
  4. A

    Graduate How Can a Lens Microstructure Alter LED Light Wavelengths?

    @mfb : May be there is a relation to the changing of refraction index from lens (rarer medium)to the microstructure(denser medium) so that it can also change the wavelength of light. @technician : Yes, I'd like to coat the lens using thin film(microstucture) on its surface, but the lens I used...
  5. A

    Graduate How Can a Lens Microstructure Alter LED Light Wavelengths?

    In my research, I want to make a transparent lens where there will be a microstructure on its surface. This lens will be used to change a wavelength of an LED lighting. Would anyone explain a physics phenomen behind this? Thank you.
    • Arian DP
    • Thread
    • Change Light Wavelength
    • Replies: 13
    • Forum: Optics
  6. A

    Fluid Mechanic - Pressure in the pipe

    The flow rate for three pumps are similar, 350m3/hour. And the diameter of pipe is 350 mm. Is it possible?
  7. A

    Fluid Mechanic - Pressure in the pipe

    What should I consider if I have three centrifugal pumps then the water of these three pumps flow into one pipe? How to calculate the pressure in the intersection of the three pipes?Thank You.