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

RHK Japan and NTKJ Co., Ltd. are pleased to announce that NTKJ's president and a sales engineer will be attending LASER World of Photonics in Munich.

LASERWorld

From 26th to 29th June, NTKJ will be having a booth (B1.531/4) at The Munich Trade Fair Center. At the exhibition, you will be able to receive information regarding NTKJ's;
# Elliptical Fresnel lens for alternative option of your freeform optics
# Recently developed Diffractive Optics
# Elliptical Fresnel lens for alternative option of your freeform optics
# Germanium Fresnel lens for IR application
# Fresnel lens
# Lenticular lens
# Lens arrays
# Made-to-order plastic lenses
# Any enquiries regarding our lens manufacturing services are welcome

If you have a plan to visit the LASER Wolrd of Photonics, we are happy to meet at our booth. If you would like to have a technical discussion, please let us know in advance to arrange the time slot. For more information regarding the exhibition including the registration process, please visit LASER World of Photonics' website. We are very much looking forward to meeting you at LASER World of Photonics. http://www.world-of-photonics.com/index-2.html

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

RHK Japan and NTKJ Co., Ltd. are pleased to announce that NTKJ's president and a sales engineer will be attending Photonics West 2015.

From 10th to 12th February, NTKJ will be having a little space at Optronics' booth (#4912) at The Moscone Center in San Francisco. At the exhibition, you will be able to receive information regarding NTKJ's;
# Fresnel lens
# Lenticular lens
# Lens arrays
# Germanium Fresnel lens for IR application
# Made-to-order plastic lenses
# Any enquiries regarding our lens manufacturing services are welcome

If you have a plan to visit the Photonics West 2015, we are happy to meet at our booth #4912. If you would like to have a technical discussion, please let us know in advance to arrange the time slot. For more information regarding the exhibition including the registration process, please visit SPIE's website. We are very much looking forward to meeting you at the Photonics West 2015. http://spie.org/x23685.xml

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

RHK Japan and NTKJ Co., Ltd. are pleased to announce that NTKJ's president and a sales engineer will be attending Photonics West 2017.

From 31st January to 2nd February, NTKJ will have a booth at #4935 at The Moscone Center in San Francisco. The booth is situated in "Itabashi-ku" booth in Japan Pavilion.

At the exhibition, you will be able to receive information regarding NTKJ's;
# Recently developed Diffractive Optics
# Elliptical Fresnel lens
# Germanium Fresnel lens for IR application
# Fresnel lens
# Lenticular lens
# Lens arrays
# Made-to-order plastic lenses
# Any enquiries regarding our lens manufacturing services are welcome

If you have a plan to visit the Photonics West 2017, we are happy to meet at NTKJ's booth #4935. If you would like to have a technical discussion, please let us know in advance to arrange the time slot. For more information regarding the exhibition including the registration process, please visit SPIE's website. We are very much looking forward to meeting you at the Photonics West 2017.

http://spie.org/conferences-and-exhibitions/photonics-west/photonics-west-exhibition

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

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that Fresnel lenses "CF600-0.3M","CF600-0.3M/3T","CF600-0.3/3T","CF600-0.5M","CF600-0.5M/3T","CF600-0.5/3T","CF800-M","CF800-M/3T","CF800/3T" and a lenticular lens "LL0.7-0.5L" have been added to our product line up.

Prices of large fresnel lenses "CF250","CF500","CF600-0.3","CF600-0.5","CF700-0.3","CF700-0.5","CF800","CF1200-M" and large linear fresnel lenses "LF500-B","LF1000-BH" have been modified in accordance with the line up addition. Please contact us for details.

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

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) will be in Year-end and New Year holiday from 30th until 5th of January. Although we are still accepting enquiries via our website during this period, replies will be after 6th January.

11 Mar 2016
RHK Japan's office relocation

RHK Japan's office will be relocated to the new place due to Tokyo Olympic and Paralympic Games' reconstruction work around its current office.
The new office will operate from the 21st March 2016 at the address stated at the enquiry page. Telephone and FAX numbers will also change.

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

RHK Japan and NTKJ Co., Ltd. are pleased to announce that NTKJ's president and a sales engineer will be attending Photonics West 2016.

From 16th to 18th February, NTKJ will have a booth at #4935 at The Moscone Center in San Francisco. The booth is situated in "Itabashi-ku" booth in Japan Pavilion.
At the exhibition, you will be able to receive information regarding NTKJ's;
# Recently developed elliptical fresnel lens
# Germanium Fresnel lens for IR application
# Fresnel lens
# Lenticular lens
# Lens arrays
# Made-to-order plastic lenses
# Any enquiries regarding our lens manufacturing services are welcome

If you have a plan to visit the Photonics West 2016, we are happy to meet at NTKJ's booth #4935. If you would like to have a technical discussion, please let us know in advance to arrange the time slot. For more information regarding the exhibition including the registration process, please visit SPIE's website. We are very much looking forward to meeting you at the Photonics West 2016.

http://spie.org/conferences-and-exhibitions/photonics-west/photonics-west-exhibition

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

RHK Japan and NTKJ Co., Ltd. are pleased to announce that NTKJ's president and a sales engineer will be attending LASER World of Photonics in Munich.

LASERWorld

From 22nd to 25th June, NTKJ will be having a booth (B3.367/3) at The Munich Trade Fair Center. At the exhibition, you will be able to receive information regarding NTKJ's;
# Elliptical Fresnel lens for alternative option of your freeform optics
# Germanium Fresnel lens for IR application# Fresnel lens
# Lenticular lens
# Lens arrays
# Germanium Fresnel lens for IR application
# Made-to-order plastic lenses
# Any enquiries regarding our lens manufacturing services are welcome

If you have a plan to visit the LASER Wolrd of Photonics, we are happy to meet at our booth. If you would like to have a technical discussion, please let us know in advance to arrange the time slot. For more information regarding the exhibition including the registration process, please visit LASER World of Photonics' website. We are very much looking forward to meeting you at LASER World of Photonics. http://www.world-of-photonics.com/index-2.html

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

RHK Japan and NTKJ Co., Ltd. are pleased to announce that NTKJ's president and a sales engineer will be attending Photonics West 2015.

From 10th to 12th February, NTKJ will be having a little space at Optronics' booth (#4912) at The Moscone Center in San Francisco. At the exhibition, you will be able to receive information regarding NTKJ's;
# Fresnel lens
# Lenticular lens
# Lens arrays
# Germanium Fresnel lens for IR application
# Made-to-order plastic lenses
# Any enquiries regarding our lens manufacturing services are welcome

If you have a plan to visit the Photonics West 2015, we are happy to meet at our booth #4912. If you would like to have a technical discussion, please let us know in advance to arrange the time slot. For more information regarding the exhibition including the registration process, please visit SPIE's website. We are very much looking forward to meeting you at the Photonics West 2015. http://spie.org/x23685.xml

26 Dec 2014
Year-end and New Year holiday at NTKJ

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) will be in Year-end and New Year holiday from 27th until 5th of January. Although we are still accepting enquiries via our website during this period, replies will be after 6th January.

21 April 2008
National holiday in May

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

RHK Japan and NTKJ Co., Ltd. are pleased to announce that NTKJ's president and a sales engineer will be attending Photonics West 2014.

From 4th to 6th February, NTKJ will be having a little space at Optronics' booth (Japan Pavilion #4915) at The Moscone Center in San Francisco. At the exhibition, you will be able to receive information regarding NTKJ's;
# Fresnel lens
# Lenticular lens
# Lens arrays
# Germanium Fresnel lens for IR application
# Made-to-order plastic lenses
# Any enquiries regarding our lens manufacturing services are welcome

If you have a plan to visit the Photonics West 2014, we are happy to meet at our booth #4915. If you would like to have a technical discussion, please let us know in advance to arrange the time slot. For more information regarding the exhibition including the registration process, please visit SPIE's website. We are very much looking forward to meeting you at the Photonics West 2014. http://spie.org/x2584.xml

1 Feb 2014
Moving of NTKJ's headquarters

NTKJ Co., Ltd. (Nihon Tokushu Kogaku Jushi) is delighted to announce that our headquarter was moved to a new location. As of 1st February 2014, NTKJ's headquarter moved to a new building. New address and phone numbers are stated in "Corporate Overview" page for more details.

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

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "LF100-30M","LF100-100M" and "LF100-100L" have been added to our product line up. As the product line-up has been expanded, previous LF100 has been renamed to LF100-30S.
Please refer to the product pages for more details.

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

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that Koichi Sato, NTKJ's President, will be attending LASER World of Photonics at Messe Munchen in Germany from 13th to 16th May 2013.

Koichi Sato is mainly at The Optronics Co,. Ltd.'s booth C1-102. If you wish to arrange a meeting, please contact us. Koichi Sato is looking forward to meeting you at LASER World of Photonics.

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

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that Koichi Sato, NTKJ's President, will be attending Photonics West 2013 at The Moscone center in San Francisco from 5th to 7th Feburuary 2013.

SPIE Photonics West

Koichi Sato is mainly at The Optronics Co,. Ltd.'s booth #4911 in the North Halll. If you wish to arrange a meeting, please contact us. Koichi Sato is looking forward to meeting you at Photonics West 2013.

1 Oct 2012
NTKJ announces new Chairman and President

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that Koichi Sato is appointed as NTKJ's President, and former President Osamu Sato is now Chairman of the Board of Directors.

"Producing the genuine" has been and will be NTKJ's policy in order to deliver quality optical components to our customers. NTKJ try to satisfy customers' needs with the cutting-edge production technologies and 38 years of experience in the industry.

Koichi Sato, the new President, is looking forward to meeting you at CEATEC JAPAN 2012.

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

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that we will present at the CEATEC JAPAN 2012 in October.

CEATEC2012

Cutting-Edge IT & Electronics exhibition "CEATEC JAPAN 2012" will take place from 2 to 6 Oct 2012 at Makuhari Messe in Japan. NTKJ will exhibit various products and services. NTKJ will welcome you to our booth "2B43".

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

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "LL0.7-0.5XL" has been added to our product line up.
Please refer to the product pages for more details.

1 Mar 2012
Additional Fresnel lenses and Linear prisms on our product list

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "CF600-0.3", "CF700-0.3", "CF-20", "CF-50", "LPV45-0.1", "LPV60-0.1", "LPV65-0.1", "LPV70-0.2" and "LPV75-0.2" have been added to our product line up.
Some Linear Prisms' product codes have been modified in order to represent prism shapes. Products described by its "Peak angle" prefixed "LPV". Products described by its "inclimation from the lens holizontal surface prefixed "LP". Please refer to the product pages for more details.

12 Mar 2011
Earthquake impact on NTKJ's business

Although there were series of massive earthquake over Japan on 11th March 2011, Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is expecting to operate our business as normal. However, we suspended all dispatch of orderd goods on the day of the earthquake as we could not confirm a situation of logistics in Japan. We have confirmed that all of our emplyees are not injured and manufacturing facility maintains its operating ability.
We will update the lates news on the website. RHK Japan will also contact our customers who may be affected by the situation such as delivery delays. May we thank all messages of your sympathy and support.

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

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that various Fresnel lenses have been added in our product line-up.
Please refer to our products pages for more details.

2 July 2010
Web/E-mail Server problem

Due to our server failure, our Web/E-mail were out of service from 1:00 to 19:42 on 2 July 2010 (JST)

If you sent e-mail messages during this period, and received error messages, please re-send your messages to us.

We apologise for any inconvenience caused.

8 May 2010
Additional Linear Prism "LP75" now on our product list

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "LP75" has been added to our product line up.

The new "LP75" is designed to bend light beam from a light source such as LEDs by reflecting at the slope of the LP75. A diagram below shows how LP75 bend light beam. As this diagram shows, LP75 has 75 degree apex angles with 52.5 degree inclination angles on both sides. A relation ship between incidence and output angle is stated below.

Incident angle (degree) 85 80 75
Output angle (degree) 2 7 11


LP75 size is 200mm x 200mm and 2mm thickness as standard. The standard material PMMA and thickness can be modified at small extra cost.

Please refer to our products page for more details.

28 Aug 2009
Additional Linear Fresnel lens for LED lighting

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "LF15" ,"LF20"and "LF25 " have been added to our product line up. The new three products' can be used for lighting application and as a part of inspection devices.

The new "LF15","LF20" and "LF25" are designed to collimate light beam from a point light source such as LEDs. These products lengths are 450mm in order to cover aligned LED lighting application.

Please refer to our products page for more details.

21 July 2009
Summer holiday at NTKJ

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) will be in Summer holiday from 12th until 16th of August. We are still accepting enquiries via our website during this period, but replies will be after 16th August.

5 Jun 2009
Additional Fresnel lenses for solar concentrator now on our product list

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "CF150-B" and "CF600-B" have been added to our product line up. As a result, our fresnel lenses line up for solar concentrator range is from small to large sizes in order to satisfy our customers' needs.

22 Sep 2008
LF1000-BH Linear Fresnel lenses for solar concentrator added to our product list

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "LF1000-BH" has been added to our product line up. LF1000-BH is a fractionized linear Fresnel lens and it has a focal length of 1000 mm. The size of one segment is 500 x 500 mm, and of 3 mm thickness, when two pieces are connected, they will form one 1000W x 500L linear Fresnel lens.

1 Aug 2008
Summer holiday at NTKJ

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) will be in Summer holiday from 13th until 17th of August. We are still accepting enquiries via our website during this period, but replies will be after 17th August.

21 April 2008
National holiday in May

Nihon Tokushu Kogaku Jushi Co., Ltd. will be closed as below due to Japanese national holidays in May. We still accept enquiries via our website during this period. We will reply to enquiries soon after the holidays.

May holiday at NTKJ
1 May 2008 - 6 May 2008

30 Jan 2008
Linear Fresnel lenses for solar concentrator now on our product list

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "LF150-B" has been added to our product line up. As a result, our fresnel lenses line up for solar concentrator ranges are for both circular and liner format in order to satisfy our customers' various solar application needs such as heat collector pipes and solar photovoltaics.

3 Dec 2007
Small and medium Fresnel lenses for solar concentrator now on our product list

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "CF50-B" and "CF400-B" have been added to our product line up. As a result, our fresnel lenses line up for solar concentrator range is from small to large sizes in order to satisfy our customers' needs.

3 Aug 2007
Summer holiday at NTKJ

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) will be in Summer holiday from 11th until 16th of August. We are still accepting enquiries from our website during this period, but replies will be after 17th August.

24 July 2007
Fresnel lenses for solar concentrator now on our product list

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that "CF1200-B2" and "CF1200-B3" have been added to our product line up. These lenses are ideal for concentrating solar energy.

17 May 2007
The Wakasa Wan Energy Research Center has embedded our fresnel lens in their solar furnace system

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) is delighted to announce that The Wakasa Wan Energy Research Center (WERC) has adopted our large fresnel lens for their innovative solar furnace project.

The solar furnace system is consist of our large 1300mm x 1300mm x t5mm Fresnel lens, which has been divided in 9 pieces. The furnace is able to produce more than 10kW/2500 °C at the focal point.

Please refer to WERC's website for more project details. (http://www.werc.or.jp).

Solar Fresnel Lens

28 April 2007
National holiday in May

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) will be closed as below around Japanese national holidays in May. We still accept enquiries via our website during this period. We will reply to enquiries soon after the holidays.

May holiday at NTKJ
28 April 2007 - 6 May 2007

28 April 2007
Website renewal

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) launched the new website.

March 2007
Additional Linear Fresnel lenses

Nihon Tokushu Kogaku Jushi Co., Ltd. (NTKJ) added short focal length Linear Fresnel Lens products to its line-up. Please refer to our products page for more details.