Cone lens (light cone)

NegotiableUpdate on 05/19

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

A light cone can convert collimated light into a circular beam or generate a light field that approximates a Bessel beam.

Product Details

Cone lens (light cone)

锥透镜（光锥）

A light cone can convert collimated light into a circular beam or generate a light field that approximates a Bessel beam.

Specifications

parameter	specification
material	BK7 glass, UV fused silica (UVFS)
Surface quality	60-40 Scratches and Pitts (Complies with MIL-PRF-13830B Standard)
aperture	90% of the diameter
diameter tolerance	+0.00 / -0.12 mm
Angle tolerance	±0.5°
S1 surface (cone surface) irregularity	± 2.5 microns
S2 surface (plane) irregularity	λ @ 633 nm (1 λ at 633 nm wavelength)
Top rounded corner	Diameter<3 mm
Basic reflectivity requirements	Any specified wavelength within the range of 350-1600 nm, with a single surface reflectance R<0.2%
AR coatings	We can provide broadband anti reflection film (BBAR) in the following frequency bands, with a single surface reflectivity R<1%:<br> • UV band: 250-400 nm<br>• VIS band: 400-700 nm<br> • Near infrared band (NIR): 700-1000 nm<br>• Infrared band (IR): 1000-1700 nm

Overview

1. Precision grade and standard grade conical lenses

2. Material: BK7 glass or ultraviolet fused silica (UVFS)

3. Cone apex angle range: 140 ° to 179 °

4. Cone lenses coated with anti reflective film can be provided according to demand, or cone lenses customized with other optical materials can be used

A plano convex conical lens has a conical surface and a plane, and its core parameter is the cone apex angle.

Cone lenses can convert collimated Gaussian beams into annular beams in the near-field region, or generate approximately diffraction free Bessel beams.

By combining a conical lens with a spherical lens, parallel laser beams can be converted into thick walled hollow light "tubes" or achieve circular focusing (see schematic diagram for details).

Cone lenses can be coated with anti reflective film (AR) or broadband anti reflective film (BBAR). If you need customized products, please submit your requirements for consultation.

Standard Convex Cone Lens Specification Table

Product Number	material	diameter	Center thickness (CT)	Edge thickness (ET)	Cone apex angle
130-0240	BK7 glass	Ø25.4 mm	12.6 mm	8.0 mm	140°
130-1240	Ultraviolet fused silica (UVFS)	Ø25.4 mm	12.6 mm	8.0 mm	140°
130-0260	BK7 glass	Ø25.4 mm	10.2 mm	8.0 mm	160°
130-1260	Ultraviolet fused silica (UVFS)	Ø25.4 mm	10.2 mm	8.0 mm	160°
130-0265	BK7 glass	Ø25.4 mm	9.7 mm	8.0 mm	165°
130-1265	Ultraviolet fused silica (UVFS)	Ø25.4 mm	9.7 mm	8.0 mm	165°
130-0270	BK7 glass	Ø25.4 mm	9.1 mm	8.0 mm	170°
130-1270	Ultraviolet fused silica (UVFS)	Ø25.4 mm	9.1 mm	8.0 mm	170°
130-0275	BK7 glass	Ø25.4 mm	8.6 mm	8.0 mm	175°
130-1275	Ultraviolet fused silica (UVFS)	Ø25.4 mm	8.6 mm	8.0 mm	175°
130-0278	BK7 glass	Ø25.4 mm	8.2 mm	8.0 mm	178°
130-1278	Ultraviolet fused silica (UVFS)	Ø25.4 mm	8.2 mm	8.0 mm	178°
130-0360	BK7 glass	Ø30 mm	10.6 mm	8.0 mm	160°
130-1360	Ultraviolet fused silica (UVFS)	Ø30 mm	10.6 mm	8.0 mm	160°
130-0365	BK7 glass	Ø30 mm	10.0 mm	8.0 mm	165°
130-1365	Ultraviolet fused silica (UVFS)	Ø30 mm	10.0 mm	8.0 mm	165°
130-0370	BK7 glass	Ø30 mm	9.3 mm	8.0 mm	170°
130-1370	Ultraviolet fused silica (UVFS)	Ø30 mm	9.3 mm	8.0 mm	170°