Micro Capillary™

Borosilicate glass capillaries ideal for fiber optic connection support

Micro Capillary™ is made of borosilicate glass. It is used for optical connectors and fiber supports in optical devices. Because Micro Capillary™ has a polishing characteristic similar to silica optical glass fibers, the precise polished face required for optical PC (physical contact) connection can be easily obtained. The high UV transmitting characteristic makes it possible to adhere capillaries and fibers, lenses or holders with UV-curable adhesive in a short time. The nozzle end type allows for firm insertion of whole optical fibers with jackets and precision glass tube type which can be used as outer tube.

Features
Properties
Transmittance
Dimensional Specifications
Event Information

Features

High dimensional accuracy
Various inner hole and outer shape designs
Smooth cone end for fiber insertion
High UV transmittance for UV adhesive
High durability applicable to optical fiber devices

Properties

Properties/Glass			Borosilicate glass
Coefficient of thermal expansion	30-380℃	×10^-7/K	51
Density		×10³kg/m³	2.36
Refractive index (n_d)			1.49
Hydrolytic resistance	JIS R3502	R₂O mg	0.05

Transmittance

Dimensional Specifications

（ｍｍ）

Subjects	Dimensions	High precision	Normal
Outer Diameter (O.D)	0.5 / 0.99 / 1.25 / 1.80 / 2.50	±0.005	±0.01
O.D. roundness	O.D.≦2.5	0.001	0.002
Inner diameter (I.D)	0.060 / 0.081 / 0.126 / 0.127	+0.001 / -0	+0.003 / -0
I.D. roundness	I.D.≦0.2	0.001	0.003
Concentricity	O.D.＜1.0	Φ0.001	Φ0.003
Concentricity	1.0≦O.D.≦2.5	Φ0.003	Φ0.003
Length	50max.	±0.2
Slit width	0.2	±0.05