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.
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A special optical glass that reduces coloring in a radiation environment. It is used for optical components in radiation environments such as outer space.
Product Introduction
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.
Feature
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01Reduce coloring by irradiation
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.
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02Larger diameter
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.
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03Small lot order is possible
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.
Physical properties
| 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 |
Application example
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Shooting / Projection -
Measuring equipment -
Medical Related -
Space /Astronomical Objects -
Aviation Related
