Product Description

Product Description

Rod Lenses for Rigid Endoscopes

Rod lens systems use special glass rods with optically finished ends, providing images with higher brightness, contrast and colour reproduction than conventional lenses.

Commonly, rigid endoscopes have a series of high-resolution optical glass rod lenses. The endoscopes can be forward viewing (0 degrees) or angled (10-120 degrees) to allow visualization out of the axis of the telescope and increase the FOV by rotating the instrument. The optical quality of lens-generated images of rigid endoscopes still surpasses that of the fiber-optic or digital images produced by flexible scopes.

Material	N-BK7, UVFS, H-K50,
	H-F4, H-BAK7, H-LAF10L,
	N-SK15, H-ZK21, H-F1, H-ZF4
Diameter	Ø0.6mm or customization
Type	Flat/Flat
	Plano-Convex
	Plano-Concave
	Cemented
Flatness	N<3, ΔN<0.5 for spherical surface
Flatness	N λ/4~λ/8 for flat surface
Centering	<5'
Surface Quality	20/10~60/40
Clear aperture	90%
Coating	Uncoated, or customized

Micro Rod Lenses are available with flat, plano-convex, plano-concave, cemented etc which applied in medical endoscopes
2.0*22.9mm 2.77*29mm 2.8*23mm 6.55*46mm Optical Cylinder Rod Lens for Medical Endoscope

Material	Length	Dia1	Dia2	Dia3	Dia4	Dia5	Dia6	Dia7	Dia8
N-BK7, UVFS, H-K50, H-F4, H-BAK7, H-LAF10L, N-SK15, H-ZK21, H-F1, H-ZF4	11.4	2.1	2.0	1.9	1.8	1.7
	14.7	2.1	2.0	1.9	1.8	1.7
	15	2.1	2.0	1.9	1.8	1.7
	17.6	2.2	2.1	2.0	1.9	1.8
	19.4	2.2	2.1	2.0	1.9	1.8
	20.2	2.2	2.1	2.0	1.9	1.8
	22.9	2.8	2.7	2.77	2.2	2.1	2.0	1.9	1.8
	23	2.8	2.7	2.77	2.2	2.1	2.0	1.9	1.8
	24	2.8	2.7	2.77	2.2	2.1	2.0	1.9	1.8
	29	3.5	3.2	2.77	3.0	2.8	2.7
	29.5	3.5	3.2	3.0	2.8	2.7
	29.8	3.5	3.2	3.0	2.8	2.7
	46	6.6	6.5	6.0	5.5