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Diode Green Lasers (Part 1, Wavelength and Efficiency)

  • Karl Guttag
  • December 16, 2011
  • 4 Comments

Today’s blog is the first in a series about green lasers, and in particular about how wavelength, power, efficiency, and lumens relate to each other.  Also, I’m also going to…

Read MoreDiode Green Lasers (Part 1, Wavelength and Efficiency)

Meet with Karl Guttag at CES 2012

  • Karl Guttag
  • December 13, 2011
  • 1 Comment

Hopefully you have been enjoying the content of this blog which as been covering pico projector technology.  I promise there is much more to come, but today I want to…

Read MoreMeet with Karl Guttag at CES 2012

Why I started the blog and other things

  • Karl Guttag
  • December 11, 2011

I’m getting asked a lot why I started the KGonTech blog. The reasons are quite simple: 1. I wanted to talk write about the technology I have being involved with…

Read MoreWhy I started the blog and other things

Being Useful (Part 2 – Ambient Light)

  • Karl Guttag
  • December 9, 2011
  • 4 Comments

For this second in this series on the Pico Projector “use model” I want to discuss the issues with ambient light.  A front projector, like most pico projectors today, have…

Read MoreBeing Useful (Part 2 – Ambient Light)

About the blog and planned series on laser projection

  • Karl Guttag
  • December 7, 2011
  • 14 Comments

Before I get back to finishing the story about how pico projectors can be “useful,” I wanted to say a few  things about the KGonTech blog and address some comments…

Read MoreAbout the blog and planned series on laser projection

First, Be Useful (Home computers and Pico Projectors)

  • Karl Guttag
  • December 6, 2011
  • 7 Comments

For today’s blog, I am going to be setting up an analogy for what I see going on with pico projectors.  Those who want to skip the history lesson and…

Read MoreFirst, Be Useful (Home computers and Pico Projectors)

Welcome to Karl Guttag on Technology

  • Karl Guttag
  • December 5, 2011
  • 60 Comments

Welcome to Karl Guttag on Technology (KGonTech for short), a blog about technology with an emphasis on technology for image generation (including microdisplays, pico projectors, and video/image processors) and human-computer…

Read MoreWelcome to Karl Guttag on Technology
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Categories

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  • Pico Projection (95)
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Recent Posts

  • Silicon Carbide Waveguides Pros and Cons September 8, 2026
  • “Transparent” Near-to-Eye Displays August 10, 2026
  • MicroLED & AR/VR Connect in Eindhoven, Sept. 2026, and Recap of AWE 2026 June 23, 2026
  • CES & AR/VR/MR 2026 Quick Takeaways (Part 1: Android/Google XR and Meta) March 9, 2026
  • AR Conferences 2026 and Laser Display December 18, 2025
  • Meta Ray-Ban Display Part 1 (Lumus Waveguide, OmniVision LCOS, and Goertek Projection Engine) October 30, 2025

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