Forum Replies Created

    #17348
    Profile Photo
    Nisa Khan
    Participant

    Hello Vigneswaran,

    You could start with what I have in my book in Chapter 6.

    Regards,

    Nisa Khan

    #12968
    Profile Photo
    Nisa Khan
    Participant

    Regular LEDs produce a Lambertian light distribution that is not suited for general-purpose lamp. Although many secondary optical design techniques are considered to achieve diffused light from LEDs amenable for general-purpose lamp, a low-loss, efficient design will be difficult to obtain without employing some guided-wave structures. It is nevertheless an interesting and challenging problem.

    #11001
    Profile Photo
    Nisa Khan
    Participant

    Hello Luis,

    The eBook is only $56 USD and you can buy from amazon.co.uk
    You can also ask your affiliation to buy the eBook or the Hardback and you can take turns in reading it. It could be a very worthwhile investment for many. To read about the book, you may go to:

    I think Amazon UK has a similar site with similar information. I hope this is not too much marketing. I can’t get around without giving the forum such information. The end benefit is that people will learn how waveguides can be useful for LED lighting and machine vision. I am hoping these would end up being really exciting fields for optical waveguide experts and OptiBPM users.

    #10992
    Profile Photo
    Nisa Khan
    Participant

    Hello Luis,

    Guilty as charged that you find my post is self-marketing. I didn’t intend it that way and just wanted to give an introduction first. In my book, “Understanding LED Illumination”, I used OptiBPM to model light out of LEDs via waveguides to show evenly dispersed light distribution. There are many new ideas that involve waveguides and lightpipes to manipulate light from LEDs for various applications in lighting and display. I could talk about this more later in the year as this is quite new and still unpublished. But you may look at Chapter 6 of my book to get some basic ideas.

    Cheers!

    Nisa