3D Glasses Direct Manufacturer of 3D Glasses including fireworks glasses, solar eclipse viewers, and holographic diffraction grating films. http://www.3dglasses.net/

Rainbow Symphony Inc. Manufacturers of 3D glasses including fireworks glasses, solar eclipse viewers, and diffraction grating films. http://www.rainbowsymphony.com/

American Paper Optics A manufacturer of 3D and novelty glasses. http://www.3-dglasses.net/

Spenser Corporation 3D glasses, paper sunglasses for premium and promotional use. http://www.3dglasses.com.tw/

Fireworks Glasses.com Holographic diffraction grating lenses for viewing fireworks displays, laser light shows, holiday and city lights and for the study of light and color. http://www.fireworksglasses.com

Jackson Optical Manufactory Manufacturer and distributor of a variety of metal, plastic and sunglass frames for over 20 years. Includes photos of products, company profile and contact information. Site is in English, Spanish and Portugues. http://jackson-manufactory.com