エアスペース型アクロマティック複レンズ、UV域ARコーティング:245~400 nm
- Minimal Focal Length Shift Over the Design Wavelength Range
- Air-Spaced Design for Superior Performance and High Power Handling
- 1" Outer Diameter Aluminum Housing
ACA254-100-UV
ACA254-150-UV
Each mount includes an engraved arrow
indicating the direction of light propagation
required to collimate a point source.
Please Wait
Specifications | |
---|---|
Wavelength Range | 245 - 400 nm |
Design Wavelengths | 282.5, 325.0, and 367.5 nm |
Surface Quality | 10-5 Scratch-Dig (to Prevent Scattering from High-Power Sources) |
Clear Aperture | Ø20 mm |
Focal Length Tolerance | ±1% at 325.0 nm |
Centration | < 3 arcmin |
AR Coating | Ravg < 0.5% from 245 - 400 nm |
Housing | Ø1" 6061-T6 Aluminum Barrel |
Zemaxファイル |
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下の型番横の赤いアイコン(資料)をクリックすると、各製品のZemaxファイルをダウンロードいただけます。 また、こちらからは当社の全てのZemaxファイルの一括ダウンロードが可能です。 |
特長
- エアスペース型設計が優れた収差補正を発揮
- 開口:Ø18 mm
- Ø25 mm~25.4 mm(Ø1インチ)レンズチューブ内に収まるØ25.4 mm(Ø1インチ)の外径
- 245~400 nm対応のARコーティング
このエアスペース型アクロマティック複レンズは、球面収差や色収差の補正、および回折限界性能を発揮する設計となっています。エアスペース型の複レンズは自由度が4の光学設計となっており、透過波面誤差、スポットサイズ、そして収差において、球面単レンズや接着された複レンズと比べて非常に優れた性能を発揮します。 詳しくは「性能」タブをご参照ください。エアスペース型設計では、製造工程で接着剤を使用しないのでレーザによる損傷に対して高い耐性があります。
複レンズはアルミニウム製のバレル型マウントに取付け済みですが、バレル径とレンズ径の寸法公差を厳しい数値に設定することで、レンズの偏心を最小限に抑えています。各マウントには、型番、ARコーティングの波長範囲、焦点距離、点光源をコリメートするための光の伝搬方向が刻印されています。マウントは、Ø25 mm~25.4 mm(Ø1インチ)レンズチューブ内に収まるØ25.4 mm(Ø1インチ)の外径となっています(右の写真参照)。
注:レンズの分解は性能に影響を及ぼす恐れがありますので推奨しません。
Air-Spaced Doublets Selection Guide | |
---|---|
UV (245 - 400 nm) | D (1.65 - 3 µm) |
Visible (350 - 700 nm) | E (3 - 5 µm) |
NIR (650 - 1050 nm) | E3 (7 - 12 µm) |
Laser-Line (532 & 1064 nm) |
UV域エアスペース型アクロマティック複レンズの性能
下の表では、各エアスペース型アクロマティック複レンズの理論上の性能を示したプロット図がポップアップします。
Posted Comments: | |
Suk Hyun Kim
 (posted 2024-05-03 20:47:59.867) I would like to purchase ACA254-200-UV lens. I have three questions.
1. Beam spot size graph is shown. What is the incoming beam diameters?
2. Is the lens diffraction limited?
3. do you offer 300mm focal length lens? cdolbashian
 (posted 2024-06-28 11:39:48.0) Thank you for reaching out to us with these inquiries. I will answer each one directly. 1) The beam diameter is 18mm, following the values we list in our Zemax simulations. 2) The qualifier for diffraction limited can be associated with a Strehl ratio > 0.8 at a center wavelength. Our lenses do a bit better and are rather Apochromatic, satisfying the diffraction limited requirement at all wavelengths within the operating range, with a minimum Strehl ratio of 0.88 and a maximum of 0.998 depending on the wavelength of choice. 3) We do not have a 300mm focal length lens for this line, but we can potentially do it for you as a custom. I have contacted you directly to discuss this potential custom. Pawel Czuma
 (posted 2019-10-24 14:01:52.707) Please answer my following questions:
1.) Is It possible to make UV Air-Spaced Achromatic Doublets uncoated? What will be transmission of such doublet from 190 to 400nm? What will be price?
2.) Is it possible to make such UV Air-Spaced Achromatic Doublets uncoated for WD=25mm and focus of approx 33mm?
Best Regards,
Pawel YLohia
 (posted 2019-10-24 02:30:33.0) Hello Pawel, thank you for contacting Thorlabs. Custom lenses can be requested by emailing our Tech Support team. We will reach out to you directly to discuss the feasibility of offering this. saurabh
 (posted 2018-03-22 06:08:11.03) I need this product Qty. 2
Also do you have similar focal lens for f=90mm ? tfrisch
 (posted 2018-03-22 09:47:20.0) Hello, thank you for contacting Thorlabs. Our Sales Team can send you a quote for 2pcs of ACA254-100-UV, and I will reach out to you directly about price, lead time, and minimum order quantity for a 90mm focal length version. scottie730318
 (posted 2014-05-15 00:57:23.963) The ACA254-100-UV has any Mounting
Thread on the lens housing (i.e. SM1)?
thanks jlow
 (posted 2014-05-14 01:29:15.0) Response from Jeremy at Thorlabs: There's no mounting thread on the lens housing. The outer diameter is Ø1" so you can put this in any mount that can accept Ø1" optics with >0.63" thickness. scottie730318
 (posted 2014-05-15 00:17:31.917) Each mount includes an engraving with the part number, AR coating wavelength, focal length, and the direction of light propagation required to collimate a point source. It indicated that the direction of arrow go right, the point source must be put in the left to obtain the collimated beam? When the point source put in the left of lens, the collimating beam can be obtained on the right side. jlow
 (posted 2014-05-14 01:28:15.0) Response from Jeremy at Thorlabs: When the arrow points to the right, the point source should be put on the left for best performance. user
 (posted 2013-02-12 13:23:25.14) Which is the damage threshold? Thanks jlow
 (posted 2013-02-14 09:58:00.0) Response from Jeremy at Thorlabs: These lenses are being tested and we will update the website once we have tested values. In the meantime, you could use the value for our -UV coated UVFS window as a guideline, which is 5.0 J/cm^2 (355 nm, 10 ns, 10 Hz, Ø0.350 mm). |
Item # | Transmission Plota | Left Lens Materialb | Right Lens Materialb |
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ACA254-100-UV | CaF2 | UV Fused Silica | |
ACA254-150-UV | CaF2 | UV Fused Silica | |
ACA254-200-UV | CaF2 | UV Fused Silica |