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FRL
Focal length f
Prism Pitch
Clear aperture
Zoom

The lens of short focal length, which is thicker, has been made to a step structure and to a thin plate shape with the characteristics of the lens. It can be used as a substitute for the lens for a loupe and LED light.

◦Since it is processed directly on the acrylic plate of 2mm thickness, it is difficult to be deformed and the performance is stable.
◦There are four focal lengths offered from 5mm to 20mm.
◦Compared with the lens of the same focal length, it is lighter and lens will not protrude from the edge of holder.

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Technical Data
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Guide

▶This product is available with different focal lengths and sizes that are not listed on-line or in our catalog. Please contact our Sales Division with your requests.

Attention

▶There is a direction to the Fresnel lens. Surface that is processed is equivalent to convex.
▶When used in laser, since diffracted light is generated in the step structure, some of the light will also leaked around the focused spot .
▶Characteristics as the lens is obtained in the range of φ50mm, but it is not guaranteed the accuracy of the focal length out of the scope of the clear aperture.
▶When rubbing strongly the processed surface of the Fresnel lens, performance may be degraded. Please do not touch directly the surface.
▶When exposed to high temperature of 80°C or more, it may be deformed and performance can be severely degraded.
▶Please do not use organic solvents such as acetone and chloroform which will dissolved and damage the step structure.
▶At the time of delivery, it is delivered with a protection sheet affixed to the surface. Please remove this protective sheet before using.

Common Specifications
MaterialCLAREX (acrylic resin)
CLAREX is the registered trademark of Nitto Jushi Kogyo Co., Ltd.
Refractive index nd 1.49
Focal length tolerance±10% (at Clear aperture)
TypeOthers
Outline Drawing

Zoom
Schematic

Zoom

Part Number

Catalog PDF

dxf

STP

IGS

SAT

Zemax

FRL-50S-05P

FRL-50S-10P

FRL-50S-15P

FRL-50S-20P

Spec
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Part Number
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    JP Yen Stock Qty
FRL-50S-05P
FRL-50S-10P
FRL-50S-15P
FRL-50S-20P

CLAREX (acrylic resin)

5mm

0.05mm

φ10mm

CLAREX (acrylic resin)

10mm

0.05mm

φ20mm

CLAREX (acrylic resin)

15mm

0.05mm

φ30mm

CLAREX (acrylic resin)

20mm

0.08mm

φ40mm

RoHS  

¥5,100

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US
RoHS  

¥5,100

LOW
RoHS  

¥5,100

LOW
RoHS  

¥5,100

CONTACT
US