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Fused Fiber Optic Faceplates

Fused Fiber Optic Faceplates
Image Inverters; Step Plates; Radius Plates; Strip Plates; Hydrogen-fired Plates

SCHOTT's Fiber Optic Faceplates are used for high resolution, zero thickness image transfer in applications that include CCD coupling, CRT / LCD displays, image intensification, remote viewing, field flattening and x-ray imaging. In opto-electronic applications, faceplates are used as both input and output image intensifier windows. All SCHOTT Faceplates are fabricated to customer-specific requirements. Typical customized shapes range from round to rectangular and vary in sizes up to 150 mm in diameter; typical element sizes range from as small as 4.0 µm up to 25 µm or larger; standard numerical apertures (NA) is 1.0 Faceplates are manufactured to meet vacuum tube requirements. They are also manufactured with various coefficients of thermal expansion to meet customer's needs.

Special Materials

Small micron size elements Radiation resistant materials
Radiation Resistant 47ARH Faceplates

SCHOTT Fiber Optics 47ARH Faceplates are produced using a core glass which substantially improves radiation resistance, yet retains the properties required for use as windows in image intensifier tubes and similar applications. Faceplates made with 47ARH material can withstand exposures of up to 100 rads of x-radiation, without significant darkening.

General Specifications

Material SCHOTT Standard 47

with or without EMA. Compatible with phosphors and photocathodes. CTE 68 x 10-7/°C. Seals to Niromet 44 using Corning 7578 frit.

SCHOTT Standard 24

with or without EMA. Compatible with phosphors. CTE 68 x 10-7/°C. Seals to Niromet 44 using Corning 7578 frit.

SCHOTT Standard 73

CTE 89 x 10-7/°C. Seals to G12 glass.

SCHOTT Standard 283

CTE 62 x 10-7/°C.

Fiber Size / Theoretical Resolution for standard materials

4.0 µm/ 144 lp/mm
6 µm/102 lp/mm
10 µm/ 50 lp/mm
25 µm/ 24 lp/mm

Numerical Aperture

1.0

Vacuum Integrity

Per customer specification

Material Quality

Chicken Wire, blemishes and distortions (gross & shear). Will quote customer requests.

Surface Quality

Polished surfaces are controlled by the scratch/dig tolerance of MIL-O-13830A and meet a 20/10 scratch/dig tolerance.

Surface Flatness

Will quote customer requests.

Typical Faceplate Specification

Glass Type

Typical Performance Parameters
47A 283C 73A 24A 24
Element Size(um)/ Resolution (lp/mm) 6/102 6/102 6/102 6/102 6/102
Numerical Aperture 1.0 1.0 1.0 1.0 1.0
Stray Light Control (EMA) Yes No Yes Yes No
Collimated Transmission White Light:
3 mm Thick
10 mm Thick
72
70
81
78
68
62
65
58
85
44
Lambertian Transmission
3 mm Thick
10 mm Thick
64
60
79
76
60
54
59
53
85
44
Coefficient of Thermal Expansion (x 10-7/°C) 68 59 89
94
68 68
Phosphor Compatible Yes Yes Yes Yes Yes

SCHOTT Lighting and Imaging is ISO 9001:2008, ISO 13485:2003, AS9100:C registered