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CDL
Focal length f
Edge thickness te
Center thickness tc
Back focal length fb
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A cylindrical achromat is single component made by bonding two cylindrical surface lenses having different refractive indexes. The resulting achromat creates fine lines close to the theoretical limit. The cylindrical achromat is recommended if blurred lines and color bleeding is a concern when using cylindrical plano-convex lens (CLB-P).

◦It is designed so that difference of focusing point is reduced as much as possible in the visible light range.
◦Optical adjustment is easy to do as direction of the condenser line will be parallel to the side of the diameter (B).
◦It can be used as a substitute for a slit spectrograph.

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Guide

▶Different focal length and diameters not mentioned on-line or in our catalog are available as a custom product upon on request.
▶Cylindrical lens holder (CHA) is available for mounting the achromatic cylinder lens. W4022

Attention

▶There is a direction of the incident parallel light with achromatic cylinder lens. The radius of curvature is allowed to be incident parallel light from the side of (the surface indicated by arrows) small curvature surface. If it is incident parallel light from the opposite side, condensing line will be thick.
▶In the generatrix direction (B direction), there is no characteristic to reduce the effect of achromatic, reducing aberration, and for collecting light.
▶If it is incident line beam source into achromatic cylindrical lens, parallel light does not come out. It will diverge in the direction of the generatrix (B direction).
▶In order to focus the fine beam line, it is necessary to enter the lens a parallel beam of high quality.

Common Specifications
MaterialN-SF5, BK7
Design wavelengthBlue: 486.1nm, Green: 546.1nm, Red: 656.3nm
CoatingAntireflection coating
CementUltraviolet cure adhesive
Laser Damage Threshold0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig)60-40
Clear aperture90% of actual aperture
Outline Drawing

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Schematic

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Incident direction of the parallel light

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Part Number

Catalog PDF

dxf

STP

IGS

SAT

Zemax

CDL-1515-25PM

CDL-1515-50PM

CDL-1515-100PM

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Part Number
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    JP Yen Stock Qty
CDL-1515-25PM販売中止
CDL-1515-50PM
CDL-1515-100PM販売中止

15×15mm

25mm

6.4mm

9mm

18.22mm

15×15mm

50mm

4.7mm

6mm

46.38mm

15×15mm

100mm

4.3mm

5mm

97.14mm

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¥43,000

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