（1）苏州中节能索乐图日光科技有限公司
苏州中节能索乐图日光科技有限公司（以下简称索乐图公司），是中国节能投资公司与美国索乐图国际公司共同投资成立的合资企业，是一家集生产、营销和销售为一体的实体。它的成立，把索乐图国际公司开创的、并拥有专利的突破性的索乐图日光照明系统引荐给中国的建筑设计团体和建筑市场。索乐图日光照明系统尖端的光学采光技术与其他采光技术具有本质的不同，它是管道式日光照明装置TDD—一个世界门窗行业中全新的产品种类。索乐图日光照明系统与窗户或天窗具有不同的光学和热学性能，它使用了先进的静态被动式光学系统和技术，对光线进行选择性采集、改变光线方向并传输、最终实现自然光在建筑深处的释放和平稳漫射。从而，使得自然光成为可在各种气候区，白昼时间内用于几乎所有的室内/建筑的主导光源。
（2）母公司之---中国节能投资公司----简介
其母公司中国节能投资公司是中国中央政府直接出资成立的唯一一家主业为节能减排、环境保护的企业，长期致力于推动节能环保技术进步与产业升级，始终专注于城市节能环保基础设施，专注于工业领域节能减排，专注于清洁技术和新能源业务，目前拥有全资控股子公司93家，员工2万人，是中国节能环保领域最具特色、最具竞争力的产业投资集团和集成服务运营商。公司围绕节能减排、环境保护、新能源和清洁技术三大主业方向，重点强化工程服务、运营管理服务、装备制造和科技研发孵化与产业化推广四大支撑，各主业板块已形成较强的核心竞争力和较大的产业规模。以水处理为主的水务板块，日处理能力达到500万吨，年污水处理量近20亿吨；以城市固体废弃物、农林生物质转化利用为主的可再生能源板块，垃圾发电、污泥焚烧发电、生物质能发电日处理能力达到1万吨；以风电、太阳能光伏发电为主的新能源板块，投产和在建风电装机150万千瓦，拥有独家开发权风资源1000万千瓦，正在投资建设一批大型光伏发电项目与光伏建筑一体化项目，并积极开发风光互补项目，在建和已签约太阳能发电装机达1400多MW。在以工业节能减排改造、城市生态节能服务为主的节能环保技术服务领域，中国节能投资公司作为中国政府有关部委指定的节能项目评估咨询机构、中央企业节能减排技术服务中心，通过合同能源管理方式，在冶金、化工、建筑、照明等领域实施了大批节能减排服务项目，并为城市和区域提供整体的循环经济规划和节能减排咨询服务，在城市开发建设低碳经济产业园区。
（3）母公司之---索乐图国际 ----简介
索乐图国际是一家总部位于美国加利福尼亚州的国际企业，是日光科技方面的世界领先者。成立于二十世纪八十年代澳大利亚, 索乐图国际的起源与TDD的出现息息相关。1992，索乐图在美国加利福尼亚州的卡尔斯巴德市建立了世界总部。1998，由于全球业务的升级，索乐图国际将总部迁到加利福尼亚州的威斯塔市。2000年索乐图推出Brighten Up®明亮系列（光截获反射设备）、Raybender®光线弯折技术，取得了诸多专利。 2002索乐图国际的Spectralight® Infinity七彩无极限反射技术，因其空前的反射率为行业创造了一个新的标准。2003索乐图国际Solatube Daylight Dimmer®日光调节器获得专利。2004索乐图国际赢得了美国能源之星ENERGY STAR®节能认证，同时获得可以用于高速风雨带的严苛的Miami-Dade County认证。2007，经重新设计，索乐图国际推出完整的索乐图TDD，超越了当时国际已有的“Miracle Skylight”。

The Miracle Skylight Matures
In 2002, a major advancement was made on the performance of Solatube skylights with the introduction of Spectralight® Infinity to the product line. This new reflective tubing material set a new standard for the industry by providing unprecedented reflectivity, allowing for optimal lighting performance, particularly in low angle light conditions and on long tube runs.

In 2003, Solatube International launched an entirely new concept to the tubular skylight category – dimming capability. The Solatube Daylight Dimmer™ (patent 7,082,726) was developed as an optional feature to provide user-controlled, adjustable daylighting at the flip of a switch. This innovation opened Solatube skylights up to a whole new range of residential and commercial application where the use of tubular skylights otherwise would not have been practical.

In the years since, Solatube International has continued to refine its technology for superior performance and durability, earning the prestigious ENERGY STAR® energy-efficiency rating as well as the rigorous Miami-Dade County approval for high-velocity rain and wind zones.

The company’s research and development team is always looking for new solutions to unusual installation challenges posed by certain applications, such as indirect or obstructed roof access or installations that require situating the dome on an opposite roofline. Introduced in 2006 was the Solatube 0-90 Degree Extension Tube Adaptor, the only one of its kind in the industry, which allows the tubing to be twisted and angled like never before for unprecedented installation versatility without compromised lighting performance.

The Solatube Daylighting System
In 2007, Solatube International, Inc. launched its completely redesigned Solatube Brighten® Up Series now known as the Solatube Daylighting System (DS), a term that better reflects the ingenuity of this lighting device in both residential and commercial applications. Solatube International’s Brighten Up® Series products include the Solatube 160 DS (10 in/250 mm Daylighting System), illuminating up to 200 square feet, and the Solatube 290 DS (14 in/350 mm Daylighting System), illuminating up to 300 square feet. Both models utilize breakthrough technology, design and materials to provide exceptional natural lighting from a compact fixture.

The Solatube Daylighting System breakthrough technologies include Raybender® 3000 Technology to collect low-angle sunlight and deflect over-powering mid-day rays; Spectralight® Infinity, the world’s most reflective tubing material; the in-dome LightTracker™ Reflector, which increases light input for increased light output; and highly engineered diffuser options. The Daylighting System is kept airtight and water-tight with a Moisture Control System and triple-seal system.

The improved product also has several new features that simplify the installation process, such as “easy-snap” and preinstalled components. Diffuser options include the proprietary new Vusion™ diffuser and the OptiView® diffuser. Create a multi-functional unit by adding a Light Add-On Kit, Ventilation Add-On Kit or Daylight Dimmer within the same ceiling fixture. The Solatube Daylighting System is ENERGY STAR®-rated for optimal energy efficiency.

Going Green
Bolstered by widely publicized research studies linking daylighting with health benefits, boosted worker productivity and student performance, among other perks, Solatube International has found vast opportunities and tremendous demand for its daylighting product in the commercial market, particularly in the retail and education sectors. As members of the U.S. Green Building Council, Solatube International has also been discovered by the sustainable design community as a simple and effective way to earn LEED™ certification credits. Solatube Daylighting Systems are specified in dozens of LEED projects around the U.S., with growth expected to increase as more local, state and federal governmental agencies and departments adopt the rating system for their building projects.

Businesses and institutions aren’t the only ones turning to energy-efficient lighting options. More and more homeowners around the country are also demanding “green” design options for their homes. In turn, major homebuilders, as well as the manufactured/pre-fabricated housing industry, have embraced Solatube Daylighting Systems as a versatile lighting option that can be simply and affordably integrated into home designs.

In the 20 years that have passed since its first patent was sought, Solatube Daylighting Systems have demonstrated an unrivaled commitment to state-of-the-art technology and design. The future looks even brighter for Solatube International with several new products currently in development. By continuing to improve upon the oldest – and finest – light source of all, Solatube Daylighting Systems have opened up a whole new world of natural lighting solutions.