Non-browning Glass
A special optical glass that reduces coloring in a radiation environment. It is used for optical components in radiation environments such as outer space.
A special optical glass that reduces coloring in a radiation environment. It is used for optical components in radiation environments such as outer space.
A special optical glass that reduces coloring in a radiation environment. It is used for optical components in radiation environments such as outer space.
A standard optical glass be colored under radiation environment and light cannot pass it through. When the camera lens colored, the correct image cannot be obtained and the function as a camera will be lost.
Even if it is placed in a strong radiation environment where general optical glass is colored, its transmittance almost no changes before and after irradiation due to its special composition.
Some Non-browning Glass are possible to yield 150mm diameter or larger by manufacturing technology that Ohara has cultivated for many years. Please consult us for details.
We can handle orders for several pieces per lot as we have been doing to general optical glass. Since it can be processed in the same way as general optical glass, it can be hot pressed, ground and polished.
Properties | S-BSL7R | S-BAL35R | ||
Optical property | Refractive index | nC | 1.51385 | 1.58618 |
nd | 1.51633 | 1.58913 | ||
nF | 1.52193 | 1.59584 | ||
ng | 1.52627 | 1.60108 | ||
Abbe number | vd | 63.89 | 60.95 | |
Coloring | [nm]
(80%/5%) |
410/365 | 450/385 | |
Other | Specific Gravity | d | 2.50 | 3.30 |