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  • Gradient-Index Lens for Laser Scanning and Widefield Imaging
  • 0.5 Numerical Aperture in Water
  • 0.25 mm Working Distance on Sample Side
  • AR Coated for 500 - 1000 nm


Microscope Objective

Sample Plane



This GRIN lens can be used as a 1:1 imaging relay between the objective lens and the sample.

3.4 mm

Ø1.0 mm

Image Plane

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GRIN Parts
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視野500 µm
GRIN Parts
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視野200 µm

覚醒マウスの神経細胞の活動。倍率20倍、NA0.5のNikon製対物レンズを使用し、深さ3 mmに埋め込んだGRINレンズG2P10で撮像。画像提供: Dr. Mackenzie Mathis, Rowland Institute, Harvard University


  • In Vivo イメージングのためのインプラント用レンズ素子として使用可能
  • レーザ走査型顕微鏡用設計
  • 広帯域ARコーティング:500~1000 nm
  • 1040 nmまでの励起波長に適したレンズ
  • 試料側は水、対物レンズ側は空気と結合する設計

当社の広帯域屈折率分布型(GRIN)レンズは、顕微鏡用対物レンズが関心領域にアクセスできない場合にイメージング用としてご利用いただけます。 レンズの作動距離は試料側が0.25 mm、対物レンズ側が0.19 mmです。ワイドフィールド観察および撮像や多光子イメージング用に、500~1000 nmに最適化された広帯域ARコーティングが施されています。直径1 mm、長さ3.4 mmのこちらのGRINレンズは、侵襲性と負荷を最小限に抑えて、対象とする試料の奥深くまで埋め込むことができます。水中での開口数は0.5で、広い集光角が確保されます。光学特性の詳細については「仕様」タブをご覧ください。



Design Wavelength550 nm
AR Coating Range (Both Ends)
500 - 700 nm, Ravg < 0.5%
700 - 1000 nm, Ravg < 1.5%
Working Distancea0.25 mm on Sample Side (Water Immersion)
0.19 mm on Objective Side (Dry)
Viewing Angle (Max)70°
Refractive Index (n1)
1.666 @ 550 nm
Gradient Constant (√A)
0.782 mm-1 @ 550 nm
Pitchb (P)
0.423 @ 550 nm
Face Angle (θ)
Numerical Aperture (NA)0.5 in Water
Length (Z)3.4 mm ± 0.085 mm
Diameter (D)1 mm +0/-0.05 mm
Field Curvaturec100 µm
Polarization Preservation0.99
Operating Temperature
<200 °C
  • 作動距離は、レンズの端から焦点までの距離です。
  • レンズの「ピッチ」とは、レンズ内における正弦波状の光線軌跡の、正弦波の1周期に対する割合です(例えば、レンズのピッチが0.25である場合、光線軌跡の長さは正弦波の1/4に等しく、そのレンズの表面に置かれた点光源からの光はコリメートされることになります)。
  • 像面湾曲とは、レンズの中心と半径の80%の位置における像の位置のずれです。 詳しくは右上の図をご覧ください。
Microscopy Using a GRIN Lens
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GRIN Lens AR Reflectance
Click to Enlarge


GRIN Lens Refractive Index Variation

Index as a Function of Radius

Relating Pitch and Lenght







Posted Comments:
tgeorges  (posted 2018-10-11 09:55:44.97)
Would it be possible to have a coating for 450nm wavelength?
YLohia  (posted 2018-10-11 09:39:39.0)
Hello, thank you for contacting Thorlabs. I will reach out to you directly to discuss the possibility of offering a custom version of this.
kyrollosyanny  (posted 2018-08-26 22:16:17.03)
This lens will be a lot more useful if it was infinity corrected. Many people in the field of neuroscience use headmonted microscopes (miniscope.org), having a 1.8 or 2mm diameter infinity corrected GRIN is very useful in that regard and it is an area with huge demand
YLohia  (posted 2018-08-28 11:32:23.0)
Hello, thank you for your feedback. I have posted this new product idea on our internal engineering forum for further consideration.
mlippert  (posted 2018-07-14 11:56:13.65)
I can only reinforce dennis' opinion. This is exactly what the field needs! People are looking for lenses to image mouse hippocampus, cortex with attached 1 mm microprisms as well as various deep brain structures (in our case mouse VTA), so various lengths and thicknesses would be ideal (thickness 1mm and 2 mm for short lenses, 0.5 mm and 0.3 mm for long (ca. 5-7mm lenses)), focal distance in tissue desn't need to exceed 150 um. A company with "opix" in its name has cornered everybody not using their system by supposedly blocking the release of the Grintech lenses to non-customers (at least its hard to get them). There is widespread discontent in the community regarding these business practices which many consider unethical. Gofoton is apparently looking at making equivalent lenses, but regardless of manufacturer, it would be amazing to have an independent manufacturer of imaging lenses for the purpose. If you have any candidate lenses, we would always be willing to test them in our lab with one of our systems.
YLohia  (posted 2018-07-19 09:50:21.0)
Hello, thank you for your valuable feedback. I have posted this idea on our internal engineering forum for further consideration.
dennis.kaetzel  (posted 2017-09-17 21:27:24.387)
Dear Thorlabs, it would be fantastic, if you could offer a range of imaging GRIN lenses that are for chronic implantation (uncoated) and permissive to blue exctitation light as required for MOST applications of those lenses for imaging in life rodents (single-photon, implanted miniscopes). There is only one supplier (GRINtech) of GRIN lenses with a 4th order index of refraction profile, i.e. of high quality ... and that supplier does not sell those lenses for imaging application due to a contract with Inscopics. At the same time, the demand for this technology is surging dramatically as dozens, if not hundreds of labs are starting to use the Miniscope Technology. What would be required are lenses with 0.25 pitch (for the cope) and uncoated lenses with 0.4 pitch and 0.5mm Working Distance and a diameter of 1mm and 0.5 or 0.6mm. You can contact me for more info.
tfrisch  (posted 2017-10-05 12:01:31.0)
Hello, thank you for contacting Thorlabs. GRIN lenses for single photon and water immersion are a part of an open discussion we have internally. I will reach out to you with more details on what you'd be looking for in the future.

+1 数量 資料 型番 - ユニバーサル規格 定価(税抜) 出荷予定日
G2P10 Support Documentation
G2P10Customer Inspired! GRIN Lens for Imaging, Ø1 mm, L = 3.4 mm, WD = 0.25 mm (Water), NA = 0.5, ARC: 500-1000 nm
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