Back to results
US 12,012,360 B2Granted
Athermal glasses and athermal systems for infrared optics
AssigneeSchott AG
InventorMark J. Davis
Life of this patent
Estimating the term…
Abstract
Athermal glasses and athermal systems for infrared optical components and systems are disclosed.
Claims5
A system, the system comprising:
- an etalon or a fiber-based strain sensor, the etalon or the fiber-based strain sensor having a chalcogenide glass composition,
- wherein the chalcogenide glass composition is represented by:
- y As+(100−y)[x S+(100−x)Se]
- wherein 10≤y≤40, and 0≤x≤100 in atomic %,
- wherein the chalcogenide glass composition has a figure-of-merit (FOM) calculated as:
- FOM
-
- =
- α
- +
- 1
- n
-
- d
-
- n
- a
-
- b
-
- s
- d
-
- T
- where α is a linear thermal expansion of the etalon or a fiber-based strain sensor,
- T is a temperature,
- n is a refractive index, and
- nabs is an absolute change in refractive index with respect to the temperature, and
- wherein
- ❘
- "\[LeftBracketingBar]"
- FOM
- ❘
- "\[RightBracketingBar]"
- ≤
- 5
-
- p
-
- p
-
- m
- °C
- .
41 more elements
Dependencies are inferred from the claim text.