BK7 Windows

Telephone: +44 (0) 1268 728077

Stock Specification

Our stock N-BK7 windows are ideally suited for medical, scientific and industrial applications and are available with a MgF₂ anti-reflection coating or uncoated.

N-BK7 windows are often used as a protective front element.

Whilst we list below a range of stock BK7 windows we are also able to manufacture sizes to suit your application.

Antireflection AR coated BK7 windows are available on request

MATERIAL	N-BK7 GRADE A OPTICAL GLASS	DIAMETER	+0.0 / - 0.1mm
FLATNESS	λ/2 @ 632.8nm	THICKNESS	± 0.2mm
SURFACE QUALITY	40/20	PARALLELISM	< 1 ARC MINUTE
BEVEL	0.2 x 45°	COATING	ON REQUEST

CUSTOM SIZES
DIAMETERS	2mm TO 300mm
SQUARE / RECTANGLE	1mm TO 500mm
THICKNESS	0.1 TO 50.0mm AVAILABLE ON REQUEST

Part No.	Data Sheet	Description	Dimensions (MM)	Thickness (MM)	Unit Price	QTY	BASKET	QUOTE
wbk-005-002		bk7 window	5.0 diameter	2.0	£10.50		BUY	ADD TO QUOTE
wbk-010-002		bk7 window	10.0 diameter	2.0	£10.50		BUY	ADD TO QUOTE
wbk-012-002		bk7 window	12.5 diameter	2.0	£10.50		BUY	ADD TO QUOTE
WBK-017-001-AR		BK7 Window AR COATED VIS	17.0 Diameter	1.0	£18.75		BUY	ADD TO QUOTE
wbk-020-002		bk7 window	20.0 diameter	2.0	£10.50		BUY	ADD TO QUOTE
WBK-020-004		BK7 WINDOW	20.0 DIAMETER	4.0	£10.50		BUY	ADD TO QUOTE
wbk-024-002		bk7 window	24.0 diameter	2.0	£10.50		BUY	ADD TO QUOTE
wbk-025-001		bk7 window	25.4 diameter	1.5	£10.50		BUY	ADD TO QUOTE
wbk-025-002		bk7 window	25.0 diameter	2.0	£10.50		BUY	ADD TO QUOTE
wbk-025-002-ar		bk7 window AR Coated VIS	25.0 diameter	2.0	£19.45		BUY	ADD TO QUOTE
wbk-029-004		bk7 window	29.0 diameter	4.5	£13.00		BUY	ADD TO QUOTE
wbk-038-004		bk7 window	38.0 diameter	4.0	£13.50		BUY	ADD TO QUOTE
wbk-050-004		bk7 window	50.0 diameter	4.0	£23.50		BUY	ADD TO QUOTE
wbk-050-005		bk7 window	50.0 diameter	5.0	£23.50		BUY	ADD TO QUOTE
WBS-050-002		BOROSILICATE	50.0 DIAMETER	2.0	£32.35		BUY	ADD TO QUOTE

PART NO.	QTY	BASKET	QUOTE	Description	Dimensions (MM)	Thickness (MM)	Unit Price	Data Sheet
wbk-005-002		BUY	ADD TO QUOTE	bk7 window	5.0 diameter	2.0	£10.50
wbk-010-002		BUY	ADD TO QUOTE	bk7 window	10.0 diameter	2.0	£10.50
wbk-012-002		BUY	ADD TO QUOTE	bk7 window	12.5 diameter	2.0	£10.50
WBK-017-001-AR		BUY	ADD TO QUOTE	BK7 Window AR COATED VIS	17.0 Diameter	1.0	£18.75
wbk-020-002		BUY	ADD TO QUOTE	bk7 window	20.0 diameter	2.0	£10.50
WBK-020-004		BUY	ADD TO QUOTE	BK7 WINDOW	20.0 DIAMETER	4.0	£10.50
wbk-024-002		BUY	ADD TO QUOTE	bk7 window	24.0 diameter	2.0	£10.50
wbk-025-001		BUY	ADD TO QUOTE	bk7 window	25.4 diameter	1.5	£10.50
wbk-025-002		BUY	ADD TO QUOTE	bk7 window	25.0 diameter	2.0	£10.50
wbk-025-002-ar		BUY	ADD TO QUOTE	bk7 window AR Coated VIS	25.0 diameter	2.0	£19.45
wbk-029-004		BUY	ADD TO QUOTE	bk7 window	29.0 diameter	4.5	£13.00
wbk-038-004		BUY	ADD TO QUOTE	bk7 window	38.0 diameter	4.0	£13.50
wbk-050-004		BUY	ADD TO QUOTE	bk7 window	50.0 diameter	4.0	£23.50
wbk-050-005		BUY	ADD TO QUOTE	bk7 window	50.0 diameter	5.0	£23.50
WBS-050-002		BUY	ADD TO QUOTE	BOROSILICATE	50.0 DIAMETER	2.0	£32.35

BK7 Windows

MATERIAL

N-BK7 GRADE A OPTICAL GLASS

DIAMETER

+0.0 / - 0.1mm

FLATNESS

λ/2 @ 632.8nm

THICKNESS

± 0.2mm

SURFACE QUALITY

40/20

PARALLELISM

< 1 ARC MINUTE

BEVEL

0.2 x 45°

COATING

ON REQUEST

CUSTOM SIZES

DIAMETERS

2mm TO 300mm

SQUARE / RECTANGLE

1mm TO 500mm

THICKNESS

0.1 TO 50.0mm AVAILABLE ON REQUEST