DB Glass Capillaries

Name: DB Glass Capillaries
Brand: Shenzhen Solar Valley Scitech Development Co., Ltd.

DB glass capillary is a basic device for optical communication. It is made of borosilicate glass. The inner diameter accuracy of the capillary hole is within ID±0.001mm, and the spacing S±0.002mm. It has high dimensional positioning accuracy, excellent physical and chemical properties, and high ultraviolet rays transmission characteristics. Double capillary holes can install two optical fibers for precise positioning, the distance S between the two optical fibers can be changed, and the capillary and the arranged 2 optical fibers can be quickly cured and bonded through UV adhesive to fix and position the optical fibers; due to the capillary tube It has polishing characteristics similar to optical fibers, so the optical polishing surface required for optical fiber connections can be easily obtained through polishing, and can be used in optical devices such as optical connectors, optical fiber joints, and optical fiber couplers.

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Specifications of DB Glass Capillaries

DB Glass Capillaries Product Parameter Table
Project	Indicator Requirements
Material Properties	Material: Borosilicate Glass
	Density: 2.3×10³Kg/m³ Thermal Expansion Coefficient: 3.3×10-6cm/cm℃
	Compressive Strength: >1.57×108Pa Young’s Modulus 6.76×1010Pa/m2
	Softening Point: 820℃ Annealing Point: 560℃ Deformation Point: 520℃
	Refractive Index: 1.47
	Dielectric Constant: 4.9(@1MHz)
Dimensional Accuracy	Outer Diameter: Φ1.00mm, Φ1.80mm, Φ2.00mm, Φ2.50mm Outer Diameter Tolerance: OD±0.005mm, customized according to customer requirements
	Inner Hole Size: Inner Hole Diameter ID: 0.051, 0.081, 0.127 Inner Diameter Tolerance ID: ± 0.001mm Spacing Size S: 0.102, 0.162, 0.128, 0.134, 0.143, 0.150, 0.58, 0.166, 0.172, 0.180, 0.186, 0.200, 0.220 , 0.233, 0.250, 0.260---0.500 Spacing S: ±0.002mm The inner hole size and spacing size can be customized according to customer requirements.
	Length: 5mm, 7mm, 15mm, 20mm length Tolerance: L±0.2mm, or customized according to customer requirements
	Taper Hole Diameter: Φ0.5±0.15mm, Φ1±0.25mm, or customized according to customer requirements
	Taper Hole Depth: 0.5~1.5mm, 1~2.5mm, or customized according to customer requirements
	Center Hole Position: 0.010mm
Surface Requirements	The cylindrical surface of the product is transparent and has no cracks. The appearance and surface condition meet customer requirements.
	Can be customized according to customer requirements.

Dimension Drawing of DB Glass Capillaries

Features of DB Glass Capillaries

Material: Borosilicate Glass, silica (SiO2) content 80%, softening point >800°C, high strength, high hardness, high light transmittance.
Properties: The glass capillary is melted and drawn at high temperature. The surface is transparent, which eliminates hidden micro-cracks on the surface. It is not easy to crack and break when dispensing glue to fix the optical fiber, and the dispensing qualification rate is high.
The glass capillary is transparent and has high UV transmission characteristics. The capillary tube and 2/3/4 optical fibers can be quickly cured and bonded with UV adhesive to fix and position the optical fibers.
Environmental performance: The production process does not use any chemical solvents, and the materials and production process do not contain or involve substances controlled by the European Union.
High dimensional accuracy: The double microhole glass capillary is accurately made through a CNC drawing tower. The optical fiber has high dimensional tolerance and positioning accuracy. The double capillary holes can install two optical fibers for precise positioning, and can precisely control the center distance between the two optical fibers.