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UV Fused Silica Plano-Convex Lenses, V-Coated: 633 nm


  • AR V-Coating for 633 nm Deposited on UV-Grade Fused Silica
  • Near Best Form for Infinite Conjugate Applications
  • Available in Ø1/2" and Ø1" Versions

LA4052-633

LA4765-633

LA4600-633

LA4579-633

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Key Specifications
Lens Shape Plano-Convex
Substrate Material UV-Grade Fused Silicaa
AR V-Coating 633 nm
Reflectance at 633 nm
@ AOI = 0°
<0.25% per Surface
Diameters Available 1/2" or 1"
Diameter Tolerance +0.00 mm / -0.10 mm
Thickness Tolerance ±0.1 mm
Design Wavelength 587.6 nm
Index of Refraction
1.460 @ 588 nm
Surface Quality 20-10 Scratch-Dig
Surface Flatness
(Plano Side)
λ/2
Spherical Surface Power
(Convex Side)b
3λ/2
Surface Irregularity
(Peak to Valley)
λ/4
Centration <3 arcmin
Abbe Number 67.82
Clear Aperture >90% of Diameter
Focal Length Tolerance ±1%
  • Click Link for Detailed Specifications on the Substrate
  • Much like surface flatness for flat optics, spherical surface power is a measure of the deviation between the surface of the curved optic and a calibrated reference gauge, typically for a 633 nm source, unless otherwise stated. This specification is also commonly referred to as surface fit.
Zemax Files
Click on the red Document icon next to the item numbers below to access the Zemax file download. Our entire Zemax Catalog is also available.
Optic Cleaning Tutorial

Features

  • Material: UV-Grade Fused Silica
  • AR V-Coating Centered at 633 nm
  • Focal Lengths Available from 20.0 mm - 1000.0 mm

Thorlabs' UV-Grade Fused Silica Plano-Convex lenses are available here with an AR V-Coating centered at 633 nm deposited on both surfaces. These lenses have diameters of Ø1/2" or Ø1". Each size is compatible with a multitude of Thorlabs lens mounts. Please see the Mounting Options tab for details.

UV-grade fused silica offers high transmission in the deep UV and exhibits virtually no laser-induced fluorescence (as measured at 193 nm), making it an ideal choice for applications from the UV to the near IR. In addition, UV fused silica has better homogeneity and a lower coefficient of thermal expansion than N-BK7.

The V-coating is a multilayer, antireflective, dielectric, thin-film coating that achieves less than 0.25% reflectance over a narrow wavelength range. Reflectance rises rapidly on either side of this minimum, giving the reflectance curve a "V" shape (see Graphs tab for performance plots). When compared to broadband AR offerings, dielectric V-coats achieve lower reflectivity over a narrower bandwidth and incident angle.

With a reflectance of less than 0.25% at 633 nm, these V-Coated lenses provide exceptional transmittance and are ideal for use with HeNe lasers, as well as applications where light is transmitted through complex optical systems.

Plano-convex lenses have positive focal lengths and are the most popular type of lens element. They are commonly used to focus a collimated incident beam; in such cases the collimated light source should be incident on the curved surface to minimize spherical aberrations. When image quality is not critical, plano-convex lenses can also be used as a substitute for achromatic doublets.

When deciding between a plano-convex lens and a bi-convex lens, both of which cause collimated incident light to converge, it is usually preferable to choose a plano-convex lens if the desired absolute magnification is either less than 0.2 or greater than 5. Between these two values, bi-convex lenses are generally preferred.

Thorlabs offers fixed lens mounts that can be used for mounting the lenses sold here. For mounting high-curvature lenses in select sizes, extra-thick retaining rings with SM05 (0.535"-40) or SM1 (1.035"-40) threading are available that provide extra clearance for spanner wrenches (see the Mounting Options tab for more information).

Optics cases are also available for storage of these lenses. Please click here for information.

Optical Coatings and Substrates
Lens Tutorial
Quick Links to Other Spherical Singlets
Plano-Convex Bi-Convex Best Form Plano-Concave Bi-Concave Positive Meniscus Negative Meniscus

Below is the transmission curve for a 10 mm thick uncoated sample of UV fused silica when the incident light is normal to the surface. Please note that this is the measured transmission, including surface reflections.

UVFS Transmission
Click to Enlarge
Click Here for Raw Data

V-Coating:
The V-coating is a multilayer, anti-reflective, dielectric thin-film coating designed to achieve minimal reflectance over a narrow band of wavelengths. Reflectance rises rapidly on either side of this minimum, giving the reflectance curve a “V” shape, as shown in the following performance plots. Thorlabs' V-coats have a minimum reflectance of less than 0.25% per surface and are designed for angles of incidence (AOI) between 0° and 20°. Compared to the broadband AR coatings, V-coatings achieve lower reflectance over a narrower bandwidth when used at the specified AOI. Click here for the raw data.

633 nm V-Coat Reflectance (AOI: 0 - 20°)

The plot on the right is an enlarged view of the shaded region:


Other AR Coatings:
Thorlabs offers UV-grade fused silica lenses with other V-coatings:

They are also available from stock with the UV, visible, or NIR AR coatings shown in the graph below. Click here to view all coating options for UV-grade fused silica plano-convex lenses.

Thorlabs' Standard Broadband Antireflection Coatings

CXY1 in 30 mm Cage System
Click to Enlarge

CXY1 Translation Mount and
SM1 Lens Tube Mounted in a
30 mm Cage System
Threaded Mounting Adapter
Click to Enlarge

Ø1" Optic Mounted in a
ST1XY-S XY Translator

Click to Enlarge

LMR1 Fixed Mount with Ø1" Lens

Click to Enlarge

LM2XY Translating Mount with Ø2" Lens
Recommended Mounting Options for Thorlabs Lenses
Item # Mounts for Ø2 mm to Ø10 mm Optics
Imperial Metric
(Various) Fixed Lens Mounts and Mini-Series Fixed Lens Mounts for Small Optics, Ø5 mm to Ø10 mm
(Various) Small Optic Adapters for Use with Standard Fixed Lens Mounts, Ø2 mm to Ø10 mm
Item # Mounts for Ø1/2" (Ø12.7 mm) Optics
Imperial Metric
LMR05 LMR05/M Fixed Lens Mount for Ø1/2" Optics
MLH05 MLH05/M Mini-Series Fixed Lens Mount for Ø1/2" Optics
LM05XY LM05XY/M Translating Lens Mount for Ø1/2" Optics
SCP05 16 mm Cage System, XY Translation Mount for Ø1/2" Optics
(Various) Ø1/2" Lens Tubes,
Optional SM05RRC Retaining Ring for High-Curvature Lenses (See Below)
Item # Mounts for Ø1" (Ø25.4 mm) Optics
Imperial Metric
LMR1 LMR1/M Fixed Lens Mount for Ø1" Optics
LM1XY LM1XY/M Translating Lens Mount for Ø1" Optics
ST1XY-S ST1XY-S/M Translating Lens Mount with Micrometer Drives (Other Drives Available)
CXY1 30 mm Cage System, XY Translation Mount for Ø1" Optics
(Various) Ø1" Lens Tubes,
Optional SM1RRC Retaining Ring for High-Curvature Lenses (See Below)
Item # Mount for Ø1.5" Optics
Imperial Metric
LMR1.5 LMR1.5/M Fixed Lens Mount for Ø1.5" Optics
(Various) Ø1.5" Lens Tubes,
Optional SM1.5RR Retaining Ring for Ø1.5" Lens Tubes and Mounts
Item # Mounts for Ø2" (Ø50.8 mm) Optics
Imperial Metric
LMR2 LMR2/M Fixed Lens Mount for Ø2" Optics
LM2XY LM2XY/M Translating Lens Mount for Ø2" Optics
CXY2 60 mm Cage System, XY Translation Mount for Ø2" Optics
(Various) Ø2" Lens Tubes,
Optional SM2RRC Retaining Ring for High-Curvature Lenses (See Below)
Item # Adjustable Optic Mounts
Imperial Metric
LH1 LH1/M Adjustable Mount for Ø0.28" (Ø7.1 mm) to Ø1.80" (Ø45.7 mm) Optics
LH2 LH2/M Adjustable Mount for Ø0.77" (Ø19.6 mm) to Ø2.28" (Ø57.9 mm) Optics
VG100 VG100/M Adjustable Clamp for Ø0.5" (Ø13 mm) to Ø3.5" (Ø89 mm) Optics
SCL03 SCL03/M Self-Centering Mount for Ø0.15" (Ø3.8 mm) to Ø1.77" (Ø45.0 mm) Optics
SCL04 SCL04/M Self-Centering Mount for Ø0.15" (Ø3.8 mm) to Ø3.00" (Ø76.2 mm) Optics
LH160C LH160C/M Adjustable Mount for 60 mm Cage Systems,
Ø0.50" (Ø13 mm) to Ø2.00" (Ø50.8 mm) Optics
SCL60C SCL60C/M Self-Centering Mount for 60 mm Cage Systems,
Ø0.15" (Ø3.8 mm) to Ø1.77" (Ø45.0 mm) Optics

Mounting High-Curvature Optics

Thorlabs' retaining rings are used to secure unmounted optics within lens tubes or optic mounts. These rings are secured in position using a compatible spanner wrench. For flat or low-curvature optics, standard retaining rings manufactured from anodized aluminum are available from Ø5 mm to Ø4". For high-curvature optics, extra-thick retaining rings are available in Ø1/2", Ø1", and Ø2" sizes.

Extra-thick retaining rings offer several features that aid in mounting high-curvature optics such as aspheric lenses, short-focal-length plano-convex lenses, and condenser lenses. As shown in the animation to the right, the guide flange of the spanner wrench will collide with the surface of high-curvature lenses when using a standard retaining ring, potentially scratching the optic. This contact also creates a gap between the spanner wrench and retaining ring, preventing the ring from tightening correctly. Extra-thick retaining rings provide the necessary clearance for the spanner wrench to secure the lens without coming into contact with the optic surface.


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Ø1/2" UV Fused Silica Plano-Convex Lens, V-Coated: 633 nm

Item #a Diameter Focal Length Diopterb Radius of Curvature Center Thickness Edge Thickness Back Focal Length Reference
Drawing
LA4647-633 1/2" 20 mm +50.0 9.2 mm 4.3 mm 2.0 mm 17.1 mm Plano-Convex Lens Drawing
LA4936-633 1/2" 30 mm +33.3 13.8 mm 3.3 mm 1.9 mm 27.8 mm
LA4130-633 1/2" 40 mm +25.0 18.4 mm 2.9 mm 1.9 mm 38.1 mm
LA4765-633 1/2" 50 mm +20.0 23.0 mm 2.7 mm 1.9 mm 48.3 mm
LA4327-633 1/2" 75 mm +13.3 34.5 mm 2.4 mm 1.8 mm 73.6 mm
LA4600-633 1/2" 100 mm +10.0 46.0 mm 2.2 mm 1.8 mm 98.8 mm
  • Suggested Fixed Lens Mounts: LMR05(/M)
  • Reciprocal of the Focal Length in Meters
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
LA4647-633 Support Documentation
LA4647-633Customer Inspired! f = 20 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coat
$111.60
Today
LA4936-633 Support Documentation
LA4936-633Customer Inspired! f = 30 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coat
$107.10
Today
LA4130-633 Support Documentation
LA4130-633Customer Inspired! f = 40 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coat
$107.10
Today
LA4765-633 Support Documentation
LA4765-633Customer Inspired! f = 50 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coat
$102.15
Today
LA4327-633 Support Documentation
LA4327-633Customer Inspired! f = 75 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coat
$102.15
Today
LA4600-633 Support Documentation
LA4600-633Customer Inspired! f = 100 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coat
$102.60
Today

Ø1" UV Fused Silica Plano-Convex Lens, V-Coated: 633 nm

Item #a Diameter Focal Length Diopterb Radius of Curvature Center Thickness Edge Thickness Back Focal Length Reference
Drawing
LA4052-633 1" 35 mm +28.6 16.1 mm 8.2 mm 2.2 mm 29.5 mm Plano-Convex Lens Drawing
LA4306-633 1" 40 mm +25.0 18.4 mm 7.1 mm 2.2 mm 35.3 mm
LA4148-633 1" 50 mm +20.0 23.0 mm 5.8 mm 2.1 mm 46.2 mm
LA4725-633 1" 75 mm +13.3 34.5 mm 4.4 mm 2.1 mm 72.2 mm
LA4380-633 1" 100 mm +10.0 46.0 mm 3.8 mm 2.1 mm 97.7 mm
LA4236-633 1" 125 mm +8.0 57.5 mm 3.4 mm 2.1 mm 123.1 mm
LA4874-633 1" 150 mm +6.7 69.0 mm 3.2 mm 2.0 mm 148.4 mm
LA4924-633 1" 175 mm +5.7 80.5 mm 3.0 mm 2.0 mm 173.6 mm
LA4102-633 1" 200 mm +5.0 92.0 mm 2.9 mm 2.0 mm 198.7 mm
LA4158-633 1" 250 mm +4.0 115.0 mm 2.7 mm 2.0 mm 249.0 mm
LA4579-633 1" 300 mm +3.3 138.0 mm 2.6 mm 2.0 mm 299.3 mm
LA4184-633c 1" 500 mm +2.0 230.0 mm 2.4 mm 2.0 mm 500.2 mm
LA4716-633c 1" 750 mm +1.3 345.1 mm 2.2 mm 2.0 mm 751.1 mm
LA4663-633c 1" 1000 mm +1.0 460.1 mm 2.2 mm 2.0 mm 1002.0 mm
  • Suggested Fixed Lens Mounts: LMR1(/M)
  • Reciprocal of the Focal Length in Meters
  • The engraved arrow on lens edge points toward the curved surface.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
LA4052-633 Support Documentation
LA4052-633Customer Inspired! f = 35 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$126.00
Today
LA4306-633 Support Documentation
LA4306-633Customer Inspired! f = 40 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$126.00
Today
LA4148-633 Support Documentation
LA4148-633Customer Inspired! f = 50 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$126.00
Today
LA4725-633 Support Documentation
LA4725-633Customer Inspired! f = 75 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$120.60
Today
LA4380-633 Support Documentation
LA4380-633Customer Inspired! f = 100 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$120.60
Today
LA4236-633 Support Documentation
LA4236-633Customer Inspired! f = 125 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$116.10
Today
LA4874-633 Support Documentation
LA4874-633Customer Inspired! f = 150 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$116.10
Today
LA4924-633 Support Documentation
LA4924-633Customer Inspired! f = 175 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$116.10
Today
LA4102-633 Support Documentation
LA4102-633Customer Inspired! f = 200 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$116.10
Today
LA4158-633 Support Documentation
LA4158-633Customer Inspired! f = 250 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$116.10
Today
LA4579-633 Support Documentation
LA4579-633Customer Inspired! f = 300 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$126.00
Today
LA4184-633 Support Documentation
LA4184-633Customer Inspired! f = 500 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$126.00
Today
LA4716-633 Support Documentation
LA4716-633Customer Inspired! f = 750 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$126.00
Today
LA4663-633 Support Documentation
LA4663-633Customer Inspired! f = 1000 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat
$126.00
Today
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