File:Dichroic filters.jpg

摘要

Original caption: "Barr Associates Developed Advanced Image Quality Space-Qualified Ultraviolet Interference Filter

Under a Small Business Innovation Research (SBIR) contract to Jet Propulsion Laboratory, Barr Associates developed advanced image quality space-qualified ultraviolet (UV) interference filters. To fabricate the filters, Barr developed an advanced ion-assisted deposition process, which enabled creation of filters that eliminated certain technical problems and broadened the range of environments in which the filters could be used. Barr refined the process and uses it in a commercial line of filters that have utility in such applications as fiber optic communications, hand-held spectrometers, and a variety of industrial applications. The filters are stable, durable, provide high spectral performance, and can be fabricated in miniature for portable instruments."

Taken from: [1] archive copy at the Wayback Machine

From en-wiki: en:Image:Dichroics.jpg

许可协议

	本文件完全由NASA创作，在美国属于公有领域。根据NASA的版权方针，NASA的材料除非另有声明否则不受版权保护。（参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。）
	警告: 使用NASA的标志、徽章、徽标等受到美国法律14 CFR 1221的限制。 NASA网站大量存储来自苏联或俄罗斯航天机构的图片，以及其他非美国的航天机构图片。这些文件不一定属于公有领域。 根据哈勃空间望远镜的数据制作的材料，如果不是明确声明由STScI提供，则可能受到版权保护。[2]参见{{PD-Hubble}}和{{Cc-Hubble}}。 SOHO（ESA和NASA）联合项目表示，由旗下的探测器创作的材料受版权保护，且对于商业性非教育目使用材料需要授权。[3] 每日一天文图（APOD）网站上展示的图片可能受到版权保护。[4] 国家太空科学数据中心（NSSDC）网站据信存储了受版权保护内容。其图库常见问答表明除非另有声明，图库的所有图片都属于公有领域。