Biconvex lens-Danyang Xinye Optical instrument Co., Ltd

Biconvex lens

A biconvex lens is a type of biconvex lens, which includes an incident surface and an exit surface. It is characterized by a longer focal length in the middle of the lens surface and a shorter focal length at the ends of each transparent surface. Double convex lenses are mainly used to concentrate light from point sources or transmit images to other optical systems.

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DETAILS

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Index
material	BK7或UV fused silica
Focal length tolerance	±1% @589nm
design wavelength	589nm
decentration	≤3′
Outer diameter tolerance	+0/-0.1mm
Effective aperture	＞90% Central area
Center thickness tolerance	±0.1mm
Edge thickness	Standard value
finish	20/10（UVFS）/ 40/20（BK7）
Face shape (within the effective aperture)	≤ 1.5λ Optical power，λ/2 Irregularity（UVFS）
	≤ 1.5λ Optical power，λ/4 Irregularity（BK7）
chamfer	0-0.8mm ×45°±15°
Other materials, outer diameter, and focal length products can be customized by Xinye Technology according to needs

Specifications
Part No	Dia	Tc	Te	R1	R2	EFL	material
Part No	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	material
LMS-254-R857-R2500-BK7	25.4	4.12	3.5	85.7	-250	250	BK7
LMS-254-R1025-R3000-BK7	25.4	4.02	3.5	102.58	-300	300	BK7
LMS-254-R1266-R3220-BK7	25.4	3.89	3.5	126.66	-322	400	BK7
LMS-254-R1554-R3876-BK7	25.4	3.81	3.5	155.466	-387.6	500	BK7