- Advanced Liquid Crystal Technologies, Inc. - Research and Product Visions for Orientable Gases and Liquids, Science and Art.
- European Optical Society - The EOS represents all national optical societies in Europe and its individual members.
- Gamma FAQ - In video, computer graphics and image processing, gamma represents a numerical parameter that describes the nonlinearity of intensity reproduction.
- International Commission for Optics - Contributes on an international basis to the progress and diffusion of knowledge in optics. Gives details on conferences, meetings, awards, travelling lecture programs and ICO newsletters.
- Light Bullet Home Page - The following Web pages discuss the phenomena of "light bullets," intense stable spherical pulses of laser light travelling through certain bulk glass and gaseous media.
- Lucky Optics Technology Co.,Ltd - Manufacturer of cylindrical lenses, toric mirrors, windows,spherical lenses,aspherical lenses, crystals,prisms and other optical components.
- On-line Optical Library - On-line Optical Library with a lot of links to papers on the net for beginners to researchers.
- Optical Society of America - A professional society of optical engineers and scientists devoted to advancing the fields of optics and photonics.
- Optical Tweezers and Laser Scalpel - Collection of links.
- Optics & Electrics Forums - Optics and Electrics Technical Forums.
- Optics Express - Electronic, peer-reviewed, journal. Provides free access to full text articles.
- Optics.net - Photonics and Optics Portal - Optics, lasers, fiber and photonics technical directory and community with research and development, employment and business forums.
- Optics.org - Online resource on optical, photonic, imaging, electronic, and optoelectronic technologies.
- Photonics Jobs Inc. - Photonics Jobs Inc. offers employment resources for photonics, optical, laser and MEMS industries.
- Photonics Online - Daily news and product updates for professionals in the optoelectronics industry: manufacturing, technology, equipment, supplies, discussion forums, chat, newsletter and software.
- Photonics Spectra - Magazine on optics, lasers, imaging, fiber optics, electro-optics, and optoelectronics; Laurin Publishing.
- Photonics.com - Photonics news; Laurin Publishing.
- Sofia University OSA Student Chapter - Chapter of the Optical Society of America at Sofia University, Bulgaria, established to promote the Science of Light among the students and to broaden their insight for post-graduate career.
- The History of the Telescope and the Binocular - Collection of articles and images.
- The Photonics Dictionary - Browse or search.
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