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Optical Fiber Natural Daylighting System

Leaning from the functions of all life

Optical Fiber Natural Daylighting System,


, delivers 

"real & natural" sunlight

to all place

by three key functions;

gathering, transporting, and 

distributing sunlight.


Natural sunlight will be transported to all rooms in the north side of building by the optical fiber daylighting system, "KAISEI".

1. Collecting Sunlight

" Insect Eye Sensor " which applies the mechanism of compounding eyes of inset, will track automatically and collect efficiently the sunlight. 


2. Transporting Sunlight

Our original "Sunlight Delivery Optical Cable", which is different from conventional glass/optical cable, will maintain the spectrum and components of the sunlight up to 1 km.



  • Agriculture: Vegetable factory and indoor cultivation plant

  • Florist / Restaurant: Improves the quality of products and provides fresh vegetables at stores

  • Aquarium / Zoo:  Creates inside room as close to the natural environment

  • Commercial facilities: Used to reduce the cost of indoor lighting

  • Medical facilities: Health care for users who cannot go out, such as nursing homes and medical facilities, use of ultraviolet rays for sterilization purposes

  • Pet shop: Maintains the health of pets at indoor exhibitions

  • Farming: Maintains the health of livestock and sterilizes buildings

  • Public facilities: Reduces the cost of indoor lighting, including tunnels and underground parking lots


Product ①

 『KAISEI 60』Business 60  

JPY 22,000,000(excluding consumption tax and delivery cost)

Please contact us in detail

possible illumination area 500㎡ (Note)

General Order Flow:

Contact → Field Survey → Decision of the necessary length of cable → Quotation → Construction


Note:This system use the natural sunlight. The light will be brighter on a clear day than a cloudy day. Therefore, the irradiation area is only for reference. Please also note that, although the brightness is limited, this system will track the moonlight and deliver it the the room at night.

Product ②

 『KAISEI HOME』Family use  

Planned in 2021

Please contact us in detail

possible illumination area 50㎡ (Note)


Introduction of Global Daylighting Systems

The ancient Egyptian Pyramid was designed that the sun goes deep into the sacred place of a huge structure twice a year at fixed times. There have been many trials to deliver the sunlight to places where it would not reach.

Now, many companies provided several products to deliver daylight to places where it cannot reach in various countries. We would like you to refer to the efforts of each company that finds various effects and meanings.  We are sure you would find something new from these.

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