Windows
 


Windows are applied to isolate different physical environments while allowing light pass. When selecting windows we should consider materials, transmission,scattering, wavefront distortion, parallelism and resistance to certain environment, NewDistrict offers a wide range of different materials including MgF2, CaF2, Sapphire and other materials with different sizes.
 
Circular Windows:

Specifications
Material	BK7grade A optical glass, UV grade fused silica or CaF2, MgF2, Sapphire
Parallelism	10″or 1′
Diameter Tolerance	+0.0/-0.1mm
Surface Quality	20-10 scratch and dig
Thickness Tolerance	±0.2mm
Wavefront Distortion	λ/10 per 25mm
Clear Aperture	>80%
Bevel	<0.5mm×45°

 

Circular Windows Part No.: By Material					φ(mm)	T	Parallelism
BK7	Fused Silica	Sapphire	CaF2	MgF2
UBKW1006	UFSW1006	USAW1006	UCFW1006	UMFW1006	10.0	6.0	10″or 1′
UBKW1206	UFSW1206	USAW1206	UCFW1206	UMFW1206	12.7	6.0	10″or 1′
UBKW2506	UFSW2506	USAW2506	UCFW2506	UMFW2506	25.0	6.0	10″or 1′
UBKW3006	UFSW3006	USAW3006	UCFW3006	UMFW3006	30.0	6.0	10″or 1′
UBKW5010	UFSW5010	USAW5010	UCFW5010	UMFW5010	50.0	10.0	10″or 1′
UBKW2503	UFSW2503	USAW2503	UCFW2503	UMFW2503	25.4	3	10″or 1′
UBKW2505	UFSW2505	USAW2505	UCFW2505	UMFW2505	25.4	5.09	10″or 1′

Note: Other dimensions and specifications are available upon requests.
 
Rectangular Windows:

Specifications
Material	BK7grade A optical glass,   UV grade fused silica or CaF2, MgF2, Sapphire
Parallelism	See the table
Diameter Tolerance	+0.0/-0.2mm
Surface Quality	20-10~80-50
Thickness Tolerance	±0.2mm
Wavefront Distortion	λ/10-2λ per 25mm
Clear Aperture	>80%
Bevel	0.25(+0.25/-0.00)mm×45°

 

Rectangular Windows Part NO a(mm) b(mm) T(mm) Material Parallelism UBKW050402 5.0 4.0 2.0 BK7 1′ UBKW101000 10.0 10.0 0.2 BK7 1′ USFW111102 11.43 11.43 2.3 SF11 3′ UBKW121203 12.7 12.7 3.0 BK7 1′ UJGW151502 15.0 15.0 2.0 JGS1 1′ UBKW182406 18.0 24.0 6.6 BK7 10″ UBKW201502 20.0 15.0 2.5 BK7 30″ UBKW202000 20.0 20.0 0.4 BK7 10″ UJGW201602 20.57 16.74 2.54 JGS1 1′ UBKW252503 25.0 25.0 3.0 BK7 1′ UBAW252506 25.0 25.0 6.7 BaK7 3′ UBKW252507 25.0 25.0 7.0 BK7 5′ UBKW252501 25.4 25.4 1.0 BK7 1′ UBKW252503 25.4 25.4 3.0 BK7 1′ UBKW252506 25.4 25.4 6.35 BK7 10″ UBKW262601 26.0 26.0 1.0 BK7 5′ UBKW301702 30.0 17.0 2.5 BK7 1′ UBKW302002 30.0 20.0 2.5 BK7 1′ UF4W392903 39.7 29.7 3.0 F4 1′ UJGW412505 41.28 25.4 5.97 JGS1 1′ UBKW153212 15.0 32.0 12.7 BK7 10″ UBKW502902 50.0 29.0 2.0 BK7 10′ UBKW505002 50.0 50.0 2.0 BK7 1′ UBKW505003 50.8 50.8 3.0 BK7 1′ UBKW505006 50.8 50.8 6.35 BK7 1′ UBKW602902 60.0 29.0 2.0 BK7 10′ UJGW602902 60.0 29.0 2.0 JGS1 10′ UBKW605202 60.0 52.0 2.0 BK7 10′ UJGW605202 60.0 52.0 2.0 JGS1 10′ UBKW832902 83.0 29.0 2.0 BK7 10′ UJGW832902 83.0 29.0 2.0 JGS1 10′ UBKW835202 83.0 52.0 2.0 BK7 10′ UJGW835202 83.0 52.0 2.0 JGS1 10′ UBKW003508 100.0 35.0 8.0 BK7 10″ UBKW005020 110.00 50.0 20.0 BK7 10″