Introduction

NTKJ Co., Ltd. (Nihon Tokushu Kogaku Jushi) manufactures and sells Fresnel lenses,lenticular lenses, sheet prisms and linear Fresnel lenses.We are ready to manufacture any type of lens according to the specifications of our clients. Please check this site and call us for details.

All NTKJ products sold outside Japan are dealt by our sole agent RHK Japan Inc. Please click here for further details about RHK Japan and our products.


The Wakasa Wan Energy Research Center (WERC) solar furnace

Topics

24 Jun 2017
NTKJ's representatives will attend LASER World of Photonics

27 Jan 2017
NTKJ's representatives will attend Photonics West 2017

1 Jan 2017
Additional Fresnel lenses and Lenticular lens on our product list

27 Dec 2016
Year-end and New Year holiday at NTKJ

11 Mar 2016
RHK Japan's office relocation

15 Feb 2016
NTKJ's representatives will attend Photonics West 2016

17 Jun 2015
NTKJ's representatives will attend LASER World of Photonics

8 Feb 2015
NTKJ's representatives will attend Photonics West 2015

26 Dec 2014
Year-end and New Year Holiday

1 Feb 2014
NTKJ's representatives will attend Photonics West 2014

1 Feb 2014
Moving of NTKJ's headquarter

9 Sep 2013
Additional large Linear Fresnel lenses on our product list

13 May 2013
NTKJ's President will attend LASER World of Photonics in Munich

4 Feb 2013
NTKJ's new President will attend Photonics West Exhibition 2013

1 Oct 2012
NTKJ announces new Chairman and President

20 Aug 2012
Meet NTKJ at the CEATEC JAPAN 2012 in October!

26 Jun 2012
Additional extra large lenticular lens "LL0.7-0.5XL" on our product list

1 Mar 2012
Additional products and Product Number changes

12 Mar 2011
Earthquake impact on NTKJ's business

23 Dec 2010
Additional Fresnel lenses in our product line-up

2 July 2010
NTKJ Web/Mail server problem

8 May 2010
Additional Linear Prism for LED lighting

28 Aug 2009
Additional Linear Fresnel lens for LED lighting

21 July 2009
Summer Holiday

5 Jun 2009
Additional Fresnel lenses for solar concentrator

Products

Plastic lens overview

Plastic lens product list

fresnel lens

Linear Fresnel lens

Lenticular lens

Prism, Light guiding plate

Fly's eye lens, Lens array

NTKJ Vision

Made to order plastic lenses

Large fresnel lens

Minute fresnel lens

Large linear fresnel lens

Minute fresnel lens

Aspheric lens

Fly's eye lens, Lens array

Light guiding plate

Prism sheet

Transmissive screen

Other made to order products (MTO)

Enquiry

About us