Shanghai Longway Special Glass Co., Ltd.
                                                                                                           
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Since 2008
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N-BK7/UV Fused Silica Positive Cylindrical Convex Lens for Laser Line Generator & Beam Shaping

Price Negotiable
Price: NEGOTIATION
MOQ: 600 pieces
Delivery Time: Negotiable
Brand: LONGWAY
Product Description



N-BK7/UV Fused Silica Positive Cylindrical Convex Lens for Laser Line Generator & Beam Shaping


1. Core Materials & Optical Design:

  • Material A (Visible Lasers): N-BK7 Optical Glass. Standard crown glass for high transmission in the visible to near-infrared spectrum, cost-effective for common laser diodes.

  • Material B (UV/High-Power Lasers): UV Fused Silica (Synthetic Quartz). Essential for ultraviolet and high-power laser applications, offering deep UV transmission and superior laser damage threshold.

  • Design: A Positive Cylindrical Convex Lens, featuring a curved surface in one axis (cylindrical power) and a flat or plano surface in the perpendicular axis.


2. Defining Physical & Optical Properties:

  • One-Dimensional Beam Shaping: Unlike spherical lenses, it converges light in only one axis (meridian), transforming a circular laser spot into a straight, sharp laser line or an elliptical beam.

  • High Laser Damage Resistance: Especially for the UV Fused Silica variant, which withstands high-intensity UV and pulsed laser energy.

  • Precision Ground Surfaces: Fabricated to tight tolerances on cylindrical radius and surface quality to produce a clean, uniform line with minimal distortion or edge flare.

  • Low Wavefront Distortion: High material homogeneity ensures the collimated or focused line maintains its straightness and intensity profile.


3. Primary Function in an Optical System:

  • Laser Line Generation: The core function is to convert a standard circular Gaussian laser beam into a fan-shaped line for alignment, measurement, and profiling.

  • Anamorphic Beam Shaping: Stretches or compresses the laser beam profile in one dimension to create specific aspect ratios for materials processing or illumination.

  • Astigmatism Correction: Can be used in reverse to correct astigmatic errors in laser diodes or other optical systems.


4. Target Applications & Industries:

  • Machine Vision & Metrology: Laser line generators for 3D scanning, profile measurement, and alignment in automated factories.

  • Industrial Alignment & Leveling: Construction tools, saw guides, and alignment systems using a visible reference line.

  • Laser Material Processing: Shaping beams for applications like laser annealing, cutting, or selective soldering where a line focus is required.

  • Entertainment & Display: Creating laser fan effects in light shows and laser displays.

  • Scientific & Biomedical: Flow cytometry, particle imaging, and other instrumentation requiring a sheet of laser light.


Item Optical glass lens
Material Optical glass, Qurartz glass, Pyrex, borosilicate glass, Float glass
Diameter Tolerance +0/-0.2 mm
Thickness Tolerance +/-0.2 mm
Processed by grinding, polishing
Surface Quality 80/50,60/40
Material Quality no scratches and air bubble
Transmission above 90%
Chamfer 0.1-0.3 mm x 45 degree
Surface Coating Available
Usage Photography, Lighting system, Electronic apparatus








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Company Shanghai Longway Special Glass Co., Ltd.
Location Rm. 2111, Bldg. A, Tomson Center, No. 188, Zhangyang Rd., Shanghai, China
Contact Person Dai

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