Custom & OEM
Filter Design

Custom & OEM
Benefits
Latest coating technologies
Competitive pricing
Fast, on-time deliveries
All filters manufactured in Vermont

View of Coating Hall

Custom & OEM
Filter Design

At Chroma Technology, we consider ourselves to be partners with ourcustomers. With 25 years of experience serving the scientific, biomedical
and photonics communities, we know how to design and deliver opticalfilters that do precisely what our customers need. Whether it’s long-term,high-volume production or a one-off custom solution, we create exactly
what you need to help make your next product a success.

Working with Chroma
Why Choose Chroma
High-Volume Manufacturing

Small Quantities and Prototypes

High-volume manufacturing is the core of Chroma’sbusiness. For 20 years we've been major suppliers tothe largest microscope manufacturers as well as toproviders of light-based instrumentation, such as DNA
sequencers, flow cytometers and plate readers. Morerecently, optical filters for point-of-care devices havebecome high-volume products.

If you require small quantities or prototypes,Chroma stands alone. Since its inception, Chroma has
partnered with scientists and engineers who need solutions
but can’t afford the higher prices our competitors charge forcustom work.

Filter Design and Applications Expertise
High-content analysis and Raman spectroscopy are
additional fields where Chroma has provided filter design
and applications expertise for major manufacturers.
Machine vision, industrial imaging, colorimetry andautomated driver-assistance technology are examplesof non-fluorescence-based imaging applications servedby Chroma.

Purpose-Driven
We believe it’s a privilege to be chosen as your supplier andto provide the support to help realize your vision of improving
the world through science. By thinking of our customers
as stakeholders in this way, we’ve earned the distinctionof being named a B Corp. As a B Corp, we’re required tovalue more than just the bottom line, and we do this throughserving the greater scientific community every day.

Good communicationmeans that problems aresolved in the design phase,resulting in a product thatworks as desired, and at
the best price.

C H R O M A T E C H N O L O G Y C O R P ® — A Purpose-Driven CompanyOur ProcessChroma does more than simply design
filters for you – we help you solve youroptical problems.
CONVERSATION

Chroma’s process of working with you begins with effectivecommunication. To develop precise optical filters meetingyour specific needs, we first work to understand theapplication the filters will be used in.
Our Engineering and OEM sales teams ask the rightquestions to help guide the filter design process. Then ourmanufacturing team crafts a reliable finished product thatis exactly what you need and that performs to the highest
standards of Chroma Technology.
This process is often a back-and-forth conversation. For
example, we might realize in the early stages that yourapplication could benefit from changes to the requested
specifications, or we might notice that some specifications
add unnecessary costs to the filter.

PRODUCTION

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QUALITY CONTROLWorking with Chroma
Our Team
We’d like you to meet some of our team members.
These are some of the dedicated professionals who will bequoting, designing and manufacturing your filters, whether
directly or behind the scenes.

EngineeringThin Film CoatingQuality ControlOEM SalesC H R O M A T E C H N O L O G Y C O R P ® — A Purpose-Driven CompanyManufacturing

Capabilities and Applications
Thin Film Optical Coatings
Sputtered Thin Film Coatings
Chroma Technology's modified magnetron thin film
sputtering techniques provide unparalleled process control
and reliable lot-to-lot consistency. This precision allows us
to manufacture complex spectral designs for demanding
applications. Our sputtered filters provide superior levelsof environmental durability and longevity. As a result, ourcatalog products are covered by the industry's only Lifetime
Warranty. For bespoke, custom and OEM filters with revisioncontrol, our warranty may vary.

Varied Coating Technologies
Sputtered oxide-dielectric coatings are the most common
type of thin films we manufacture, and they offer the greatest
flexibility and durability. Sputtered metal and sputteredmetal-dielectric coatings offer the widest spectral rangesof attenuation of undesired wavelengths. Our sputteredmetal-dielectric UV filters provide the industry's highest
transmission in their class while blocking out-of-band
wavelengths out to and beyond the IR.
Chroma Technology still maintains an e-beam and thermal
resistive coating capacity for applications that may benefit
from these technologies.

Clean glass, blank slate.
Your next optical filter.
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Manufacturing

Capabilities and Applications
Sputtered Oxide Coating Performance
Sputtered Oxide-Dielectric Interference Coatings

SINGLE & MULTI BANDPASSLONG/SHORTPASSNOTCHDICHROIC BEAMSPLITTER

Typical Transmission Performance 1,2

93-99%

95-99%

95-99%

94-98%

Typical Optical Density/Reflection 1,2

OD6-8+

OD6-8+

OD6+

Reflection >98%

200-3000nm

200-3000nm

300-2000nm

200-3000nm<1%<0.25%<1%<2%a, b, c, d, e (see below)

a, b, c, d, ea, b, c, d, ea, b, c, d, e

400º C/-200º C

400º C/-200º C

400º C/-200º C

400º C/-200º C

Spectral Range
Transition Slope/Edge Steepness 3,4

Environmental/Physical Durability and Tolerance Standard, Exceeds:

Temperature Extremes – Short Duration
1

Specifications vary according to design, available upon request
Values refer to performance over intended spectral range
Typical values; steeper slopes available by design
4
Slope of pass and notch filters measured from 50% of TMax - OD5;
slope of dichroics measured from 10%T - 90%T
2a = ISO 9022-2-11-03; b = ISO 9022-2-11-06; c = MIL-C-48497A 4.5.4.1; d = ISO 9022-2-12-06; e = ISO 9211-4-04-08

3C H R O M A T E C H N O L O G Y C O R P ® — A Purpose-Driven Company

Applications and Filter Types
Chroma has long served customers in the Scientific, Biomedical and Photonics communities. Markets that are growing rapidly for Chroma include
Industrial Imaging/Detection and related fields.

Applications

FLUORESCENCEPHOTONICS•• Fluorescence Microscopy•• DNA sequencing•• Point-of-Care•• Flow Cytometry•• High Content Analysis &Screening•• Surgical Devices•• Forensics•• Microplate Readers•• Hyperspectral Imaging•• Dye Penetrant Inspection•• Semiconductor
Fabrication/Inspection•• Raman Microscopy•• Raman Handheld Devices•• Machine Vision•• Colorimetry•• Environmental Monitoring•• Remote Sensing•• Astronomy•• Aerospace & SpaceExploration•• Advanced Driver
Assistance Systems•• Multivariate OpticalElements

Filter TypesPASS FILTERS•• Single & Multi Bandpass•• Longpass & Shortpass•• Notch Rejection•• Narrow Band Laser LineFilters•• Laser Diode & LED
Clean-up Filters•• Neutral Density Filters•• Polarizers

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BEAMSPLITTERS &MIRRORS•• Beamsplitters, including
Long & Shortpass andReflecting Band Dichroics•• Multi Band Dichroic
Beamsplitters•• Half Mirrors & RatiometricBeamsplitters (50/50,80, 20, etc. Beamsplitters)•• Hot Mirrors & ColdMirrors•• Fully Reflective Mirrors

Quality ControlMeasuring
Spectral Performance
Chroma Technology employs a suite ofadvanced Cary spectrophotometers,
covering 200-NIR.
We perform spectral measurement of every production lot
to ensure filters meet specification requirements. We assign
specifications for catalog products, which we've developed
through 25 years of experience. For our OEM customers andthose requesting bespoke parts, we provide the specified
spectral performance.

Spectral Range

200-3300nm

DYNAMIC
RANGE

SPECTRALRESOLUTION

100%T →OD8Resolve
spectralfeatures 1 Åor greater

Our various Cary spectrophotometers
cover a range of capabilities, including measurement of Optical Density values ≈OD8C H R O M A T E C H N O L O G Y C O R P ® — A Purpose-Driven Company

Vision Guided
Automation
Measuring
Physical Properties

Chroma Technology is implementing
the automation of some processes,including filter inspection.

Using Zygo interferometers and custom-built
autocollimators, Chroma Technology is able
to offer precise measurements of Transmitted
Wavefront Distortion (TWD), surface flatness(Reflected Wavefront Distortion/2) andparallelism (wedge).
Inspection
Automation

We measure physical dimensions of size according
to specifications and perform routine surface quality
inspections such as S/D (Scratch/Dig), and we ensurethat shipped products are free of any cosmetic defects.

Transmitted
Wavelength
Resolution
1/20λ

SURFACE FLATNESSRESOLUTION

1/20λ

PARALLELISM

1 arcsecond

Our Zygo interferometers
allow us to consistently certify products with exceedingly
flat surfaces after coating. Our flatness specs are offinished product, not incoming substrates.

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Robotic Handling

Automation of activities,
such as transferring andloading of filters into
spectrophotometers,
saves time andminimizes errors.

About Chroma

Easy Online Ordering

Chroma was organized in 1991
by several talented individuals
who wanted to create a working
environment entirely different
from the typical corporate
structure. Chroma Technology
is 100% employee-owned. All
manufacturing occurs in theUnited States, with worldwide
distribution and sales support.

Visit www.chroma.com to order online.

US Corporate Headquarters
10 Imtec Lane
Bellows Falls, Vermont 05101 USA
sales@chroma.com
Tel:  1-800-824-7662+1-802-428-2500

May 2017

Ordering by Phone
Call +1-802-428-2500 or 1-800-824-7662
Lifetime WarrantyTerms:Net 30 days
FOB: Chroma Technology, Bellows Falls, VT

Chroma Technology GmbH
Maximilianstrasse 33
D-82140 Olching, Germany
europe@chroma.com
Tel: +49-8142-2847525

Chroma China
Rm 803, Building No.16 Yuanbo Wuli
Xingjin Road, Jimei District
Xiamen City, Fujian Province361021 China
china@cn.chroma.com
Tel: +86-0592-5062089

Chroma Technology Japan
8F Yokohama Onoecho Building
4-57 Onoecho Naka-ku
Yokohama 231-0015 Japan
japan@chroma.com
Tel: +81-045-285-1583

An Employee-Owned Company
Producing the World’s Finest Optical
Filters and Filter Sets