Luceo Co., Ltd.

In 1966, when liquid crystals did not exist, we took notice of polarizing plates, an optical element, and began our in-house R&D, production and sales. As time passed, we began doing the same for wave plates, which is now adopted by major microscope manufacturers, becoming a confident product of our company. In 1996, we developed, manufactured and sold original strain tester using our own polarizing plates and wave plates. Luceo has always made progress and evolved by having flexibility to the change of times. We aspire to become a niche-top company in these fields by continuing to develop products in our brand.

Product 7

Super Broadband Wave Plate （SB-RETAX）

・The single wave plate is capable of achieving constant phase difference with high precision in the range of 450nm to 1,100nm with its super broadband range.
・Retardance Tolerance:±λ1/50（450nm≦λ1＜550nm）、±λ2/80（550nm≦λ2≦1,100nm）

・Sizes larger than crystals can be manufactured. It also supports various sizes and shapes (square, etc.) (~φ100mm、~□100mm).
・For applications requiring multiple wave plates, SB-RETAX will provide the solution with just one plate.
・Enables faster data synthesis and miniaturize device development.
For example, solar observation requires multiple wavelengths simultaneously and each wave length data is compared and synthesized for analysis. Conventional wave plates that support single wavelengths cannot perform simultaneous observations, so time lags occurred when comparing data and extended time is required for synthesis. By having a single wave plate perform multiple observations simultaneously, it provides accuracy and shortened work time.
In addition, when switching wave plates, space within the device itself or the structural space would be required, but with SB-RETAX, these spaces become unnecessary, which could lead to miniaturization of devices.
・Contributes to the development of truly innovative ideas.
・Simulations allow adjustments to any wavelength range and retardation (maximum wavelength range of 450 to 1,100nm).
・For example, we offer standard products supporting wavelength range of 450～700nm、500～800nm、600～900nm and 800～1,100nm (Retardance Tolerance: ±λ/80,Parallelism and Surface Quality: For φ30 (Parallelism 4 arc min, 4 fringes), parallelism of 1 arc min can be provided upon customized order.)
・Customized orders available from just 1 pc.

・The conventional polymer film wave plates for a specific wavelength laminate just 1 layer of wavelength film in between 2 glass substrates, but by laminating 5 layers based on optical design, the super-broadband performance is achieved
Product 8

Polarizing Plate (POLAX)

・Polarizing plate made by our original brand

・Because we perform the R&D and manufacturing, customers may select from a variety of standard products. The supported wavelength range for visible light is 400~680nm and near infrared is 780~1,600nm.
・In addition to standard products, we offer customization from just 1 plate.
(POLAX is an original brand by LUCEO)
・Various sizes available (Diameter, thickness) (~φ100mm×4t ~□100mm×4t (Axis parallel to edge), thickness: 1t~)

Improved in-plane color regularity: ~ φ50mm、~□50mm×2t (Axis parallel to edge). Our company was the first to develop polarized plates that cuts-off short wavelengths (prevention of blue-leak phenomenon). Even today, we are improving our technology. LUCEO quality is recognized worldwide as our products are integrated into products of globally famous major microscope manufactures and national astronomical observatories.
・This polarizer has a film laminated in between the glass substrates. It is a known fact that, generally, it is difficult to attain parallelism and surface quality with laminated products, but our polarizing plates possess high quality parallelism and surface quality, as well as transmitted wavefront quality.

For example, φ30×2t：Parallelism 3 arc min (Customized: ~ 30 arc sec) 3 fringes
・High level of axis accuracy (~±1 deg.)

・Measurement data may be attached

Product 9

Wave Plate（RETAX , HI-RETAX）

・Wave plate made by original brand
・Because we manufacture the wave plates in-house, we are able to offer wave plates made to your preferred wavelength (retardation or phase difference) from just 1 plate (Maximum phase difference available: 560nm per 1 film. By layering multiple wave films, we offer phase difference over 1,000nm as well)

・You may select from the 2 types of wave films we offer for your needs.

Original Brand Name RETAX HI-RETAX
Maximum Size
(Seamless size)		 Phase difference: appx.140nm
φ140mm
□140mm
(Axis parallel to edge)
Phase difference: appx. 530nm
φ30mm
□30mm (Axis parallel to edge)		 Phase difference: appx. 140nm
φ100mm
□100mm
(Axis parallel to edge)
Phase difference: appx. 530nm
φ60mm
□60mm (Axis parallel to edge)
Thickness Size：～φ60
Thickness：appx. 1mm or more
Size：φ60～φ140
Thickness：appx. 2mm or more		 Size:～φ100
Thickness：appx. over 2mm
Price Custom orders are lower priced than HI-RETAX
(Recommended)		 Standard products are same price as RETAX
Heat resistance temperature Approximately 40℃ Appx. 70℃ (Recommended)
Retardance Tolerance Within 1nm（φ30mm, appx. 140nm phase difference）
Within 4nm（φ30mm, appx. 530nm phase difference）		 Within 1nm（φ30mm, appx. 140nm phase difference）
Within 4nm（φ30mm, appx. 530nm phase difference）
Parallelism & Surface quality φ30×2t：Parallelism 3 arc min (Customized: ~ 30 arc sec)
3 fringes		 φ30×2t：Parallelism 3 arc min (Customized: ~ 30 arc sec)
3 fringes
Polarized observation of color by sensitive tint plate (red tint) Differs from crystal wave and mica wave plates Same as crystal wave and mica wave plates (Recommended)

※The available size and thickness will vary depending on phase difference and optical axial direction.
※In addition to standard products, we make custom orders from just 1 plate
※Custom made orders are available for coating types, sizes and shapes.

Product 10

Circularly Polarizing plate

・Circularly polarizing plate is made by laminating polarizing and wave plates (1 / 4λ phase difference).
・Polarizing plate (POLAX) and Wave plate (RETAX、HI-RETAX) from our original brands are used so we are able to offer a variety of circularly polarizing plates. (Available wavelength range: visible light (400~680nm) and near infrared (780～1,600nm))
・In addition to standard products, we make custom orders from just 1 plate
・Various sizes available (Diameter, thickness). (RETAX:~φ50mm X 2t, ~□50mm X 2t)
・High level of axis accuracy (~±2 deg.)
※As phase difference becomes larger, than the available size becomes smaller.

Luceo has an ISO 9001:2015 certified Quality Management System.
Optical filters are tested and evaluated throughout the manufacturing process. Spectrophotometers and optical measuring instruments are calibrated and maintained to meet the requirements of our Quality System.

Optical filters are 100% inspected before shipping.

Product 1

NEW PRODUCTS

Near Infrared Polariscope

LSM-9100WNIR / LSM-9001NIR

LSM-9100WNIR
Evaluates 2D distribution map of colored resin products up
to φ100 in a few minutes.
LSM-9001NIR
Evaluate with 2D distribution of low phase difference
samples such as semiconductor wafers, colored glass, and
colored acrylic resin products in 1 minute.
Product 3

Fully Automatic Polariscope LSM-9100W

・ Polarimeter/scope is a testing device that evaluates residual strain of glass and plastic arising from birefringence accurately.
・Conventional polariscopes depend on human visual sense, experience and/or intuition to measure the amount of strain or make judgements, so with every measurement, the test results varied depending on the operator’s experience and the level of physical fatigue or eyestrain. In contrast, Fully Automatic Polariscope LSM-9100W is a device that quantitively measures the strain (retardation) peculiar to the sample two-dimensionally in the range of 0-3000nm, regardless of who or when it measures.
・Invisible to the human eye, the internal residual stress of a transparent object can be thoroughly and quantitively measured by anyone with just one click,it’s an easy operation.
・By incorporating internally manufactured high-quality polarizing plates, we were able to adopt RGB linear polarization method using 3 wavelength data that makes it possible to obtain highly accurate result of repeatitive accuracy by 1nm retardance.
・Since we design, assemble, and develop software in-house, we can provide high quality products at reasonable prices.
・LSM-9100W is a very price competitive instrument compared to our competitions that have the same specs such as the resolution and the repeated accuracy of data.
・The credibility of this testing equipment is backed by its business record with major glass and lamp manufacturers, as well as lens makers, to name a few.

・The physical unit of a strain, the retardation (phase difference), is measured quantitatively (in nanometer units). Furthermore, retardation can be converted into stress (MPa or kg/cm2) by entering the sample’s photoelastic constant and thickness.

・By feeding back the measurement into development, it can contribute to reducing defective parts. It is also effective in setting mold conditions as wells as process management of resin molded parts.
・Due to its wide measurement area of φ150 mm, it is best suited for measuring large samples.
・It is capable of measuring large strain of glass or plastic depending on the generated amount of the strain.

・YES, it’s Made in Japan

・It will calculate the retardation (phase difference) and the axis orientation of the slow or fast axis derived from birefringence accurately .
・The instrument is interlocked so no measurement will take place with the door open. In the case of large sample measurements, the “darkroom mode” can be enabled to defeat the interlock.
・The measurements will be displayed in 3D view.
・High luminance LED light source allows for long life and low power consumption, reducing downtime and operating cost.
・Dedicated software and PC that achieves easy measurement and highest precision are included in the product package.

Contact us to see how Luceo works with our customers to solve complex metrology problems.
Measure:
Glass, Stress Birefringence, Display Components, Injection Molded Plastics, Fiber Optics, Lens Blanks, Lenses, Birefringent Crystals and others.

Product 4

Fully Automatic Polariscope LSM-9100WS

・High accurate measurement up to 3000nm retardance is achieved by its 6x zoom lens which optically magnifies small samples. With simple measurement and easy operation that doesn’t need operator’s skills makes it possbile to use this fully automatic polariscope by everyone. (Measurement area: 60×60～10x10mm)
・Compared to our competitions that have the same specs such as the resolution and the repeated accuracy of data,LSM-9100WS is a very price competitive product.
・The double extension lens (optional) is available as attachment, making it convenient for users who want to measure even smaller samples for a higher accuracy.
・Other major features are equal to Fully Automatic Polariscope LSM-9100W.
Product 5

Fully Automatic Polariscope LSM-9002LE

・Fully Automatic Polariscope LSM-9002LE measures residual stresses by observing strain in glass or plastics from 0nm to 130nm retardation (phase difference) with high accuracy by simple operation.
・Because of its larger measurement area of 205mm x 205mm, this model is effective for measuring the strain of a sample relatively larger dimensions.
・Manufactured with high-quality optical filters. Strong price-competitiveness against the competitors that have the same specs of instruments.
Product 6

Fully Automatic Polariscope LSM-9002S

・LSM-9002S is a Fully Automatic Polariscope that is capable of measuring retardation (phase difference) range  0-130nm with high accuracy by easy measurement.
・Accurate measurement is achieved by its 6 times zoom lens which magnifies small samples optically .
・The double extension lens (optional) is available as an optional attachment that makes it convenient for users who need to measure even smaller samples.
・Effective for measuring samples with relatively low strain such as glass objects.

Simply set the measurement target and press the measurement start button.
The retardation measurement result is displayed.
The obtained 2D data can be graphed and compared with the analysis function.

Technical Documents
(LSM-9001 & 9100 series)

LSM-9001 product introduction

principle of stress measurement

Other Polarimeters

https://luceo.co.jp/en/polariscopestraineye

Technical Documents

Circular Polarization Method

Sensitive Color Method

Please note!

The similar products of our LSM series are out on market in China.
If you have any concerns, please feel free to contact us.

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What is Strain?

■ Definition of Strain This page is about the definition of strain in Luceo. ■ Stress, Strain In Luceo, we use the word "strain" as following meaning. We say "There is strain" or "Strain remains……