美國(guó)Chroma Technology Corp  www.chroma.com
Chroma Technology Corp. is a manufacturer of interference filters for the ultra-violet, visible and near-infrared portions of the spectrum, including bandpass, multiple bandpass, and long and short pass filters, as well as beamsplitters, dichroic mirrors and laser rejection filters.
We specialize in precision spectral control, including extra high signal-to-noise ratio filters and those with rapid cut-on and cut-off profiles. The manufacturing process involves precisely depositing, in a vacuum, extremely thin layers of two or more materials on a glass or similarly transparent substrate.
Chroma was organized by several talented individuals who wanted to create a working environment entirely different from the typical corporate structure. Founded in Brattleboro, Vermont, in May 1991, Chroma quickly established itself as a leader in filter designs. From its inception, Chroma has worked closely with the community of molecular and cell biologists worldwide to develop the best possible solutions to applications requiring fluorescence filters. As an employee owned Company, it has grown from seven employees with sales of $314,200 in its first year of business, to 54 employees with sales of $12,000,000 in its 10th year of business.
Currently, microscope filter sales represent 66% of total revenues. Chroma is a principal supplier to three of the four major microscope manufacturers and a secondary supplier of the fourth. The remaining 34% of Chroma's business comes from manufacturers in bioscience instrumentation, bio-medical instrumentation, pharmaceutical research, astronomy and laser-based instrumentation. Chroma's filters are distributed worldwide with 34% of its business from international sales.

Chroma Technology Corp. is an employee-owned company. We believe that the benefits of employee-ownership are many, and include the direct relationship between increased production levels, strong employee-owner commitment, and financial rewards.
We are members of the Vermont Employee Ownership Center, and provide a link to their website under the Company Ownership section.