THORLABS QTH10 User manual

QTH10(/M)
Quartz Tungsten-Halogen
Lamp
User Guide

QTH10(/M) Quartz Tungsten-Halogen Lamp
TableofContents
Chapter 1Warning Symbol Definitions..............................................................................................1
Chapter 2Safety....................................................................................................................................2
Chapter 3Description...........................................................................................................................3
3.1.Product Overview............................................................................................................3
3.2.Mechanical Description .................................................................................................. 3
3.3.Power Supply...................................................................................................................3
3.4.Bulb Alignment and Replacement ................................................................................. 3
Chapter 4Specifications......................................................................................................................4
Chapter 5Mechanical Drawing............................................................................................................5
Chapter 6Regulatory............................................................................................................................6
Chapter 7Thorlabs Worldwide Contacts...........................................................................................7

QTH10(/M) Quartz Tungsten-Halogen Lamp Chapter 1: Warning Symbol Definitions
Rev H, October 24, 2018 Page 1
Chapter 1 Warning Symbol Definitions
Below is a list of warning symbols you may encounter in this manual or on your device.
Symbol Description
Direct Current
Alternating Current
Both Direct and Alternating Current
Earth Ground Terminal
Protective Conductor Terminal
Frame or Chassis Terminal
Equipotentiality
On (Supply)
Off (Supply)
In Position of a Bi-Stable Push Control
Out Position of a Bi-Stable Push Control
Caution: Risk of Electric Shock
Caution: Hot Surface
Caution: Risk of Danger
Warning: Laser Radiation
Caution: Spinning Blades May Cause Harm

QTH10(/M) Quartz Tungsten-Halogen Lamp Chapter 2: Safety
Page 2 TTN016327-D02
Chapter 2 Safety
All statements regarding safety of operation and technical data in this instruction manual will only apply when the
unit is operated correctly.
WARNING
This product is Risk Group 1 for IR Radiation.
WARNING
This lamp is a special-purpose product for laboratory use and is not suitable for household room
illumination.
WARNING
Any addition of focusing optics may result in increasing the radiation hazard from the lamp. Always
wear eye protection when working with the lamp.
WARNING
This lamp emits IR radiation. Skin exposure to IR radiation can be avoided by wearing long-sleeved
clothing around the lamp.
WARNING
Do not operate with the optic or the rear end cap removed.
WARNING
Do not touch the bulb’s surface with your bare hands. If the bulb’s surface shows signs of
fingerprints or dirt, clean carefully with alcohol.
WARNING
Always make sure equipment is switched off before mounting the lamp.
WARNING
Do not look directly at the light source during operation.
WARNING
Handle with care during use, as impact will severely shorten lamp life.
WARNING
If the lamp is used with a bulb not purchased from Thorlabs, Thorlabs is not responsible for any
adverse effects from radiation exposure.
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QTH10(/M) Quartz Tungsten-Halogen Lamp Chapter 3: Description
Rev I, May 23, 2019 Page 3
Chapter 3 Description
3.1. Product Overview
The QTH10(/M) Quartz Tungsten-Halogen Lamp offers stable output and broadband, incoherent illumination in the
visible and near-IR portions of the spectrum. It is a general-purpose lab tool with several convenient features,
including a heat sink, internal SM2 (2.035"-40) threading for compatibility with our Ø2" lens tubes, and an 8-32 (M4)
tapped hole for compatibility with our Ø1/2" posts. Two externally SM2-threaded end caps and a condensing lens
(item # ACL5040U) are included. The front end cap (item # SM2CP2) has a knurled edge that allows it to be
removed by hand, while the rear end cap requires the use of the SPW801 spanner wrench. Note that the unit should
not be operated with the rear end cap and optic removed.
3.2. Mechanical Description
The QTH10(/M) has a 10 W, 12 V quartz tungsten-halogen bulb in the middle, an ACL5040U condensing lens on
one end, and an SM2-threaded end cap on the other end. The housing is compatible with our TR series posts.
Internal SM2 threads on both sides of the housing permit different lenses, lens tubes, or other SM2-compatible
optomechanics to be attached.
The halogen bulb has a G4 2-pin base. By loosening a setscrew behind the end cap with a 0.05" (1.3 mm) hex key,
the bulb height may be adjusted.
3.3. Power Supply
The QTH10(/M) requires a 12 VDC power input. We recommend using the universal AC/DC power supply that is
included with the unit for best performance.
3.4. Bulb Alignment and Replacement
Alignment Notes
For the best imaging quality, the filament should be oriented perpendicular to the optical axis. To achieve this, use
a 0.05" (1.3 mm) hex key to loosen the setscrew holding the bulb in place. Looking down the optical axis of the
lamp, rotate the filament to be parallel to the optical axis, then back to perpendicular. This is a clear way to determine
the filament’s alignment.
In addition, for high imaging quality, the optical axis should go through the center of the perpendicularly oriented
filament. The use of an alignment plate, such as Thorlabs’ LMR2AP for SM2 Lens Tubes, will help determine
when the image is centered.
Bulb Replacement
We strongly recommend the use of gloves (such as latex or cotton gloves) when replacing the bulb in order to
prevent skin oils from being deposited on the glass.
1. Remove the power cord from the AC outlet.
2. Unthread the SM2 end cap. Allow sufficient time for the unit to cool. CAUTION: Bulb and surfaces may be
extremely hot!
3. Loosen the setscrew with a 0.05" (1.3 mm) hex key and pull the socket out of the housing.
4. Remove the bulb from the socket and insert the new bulb into the socket. Press firmly to ensure that pins
are fully seated.
5. Insert the socket back into the housing. Align the filament, then tighten the setscrew.
6. Thread the SM2 end cap back onto the housing.

QTH10(/M) Quartz Tungsten-Halogen Lamp Chapter 4: Specifications
Page 4 TTN016327-D02
Chapter 4 Specifications
Specifications
Bulb Manufacturer Ushio
Base G4 2-Pin
Bulb Type Quartz Tungsten-Halogen Bulb
Optical Output Power1 50 mW (Typical)
Color Temperature 2800 K
Rated Life (Hours) 2000
Bulb Voltage 12 V
Bulb Power 10 W
Included Optics ACL5040U
Included Power Supply
Voltage Input: 90 - 264 VAC, 50 - 60 Hz
Voltage Output: 12 VDC
Output Connector: 2.1 mm ID x 5.5 mm OD x 9.5 mm Long (Female)
Dimensions (L × W × H) 70.1 mm x 55.9 mm x 71.9 mm (2.76" x 2.20" x 2.83")
1Measured by focusing the output beam after the ACL5040U Condenser Lens onto an S302C Thermal Power Sensor with a Ø2", 90°
protected silver off-axis parabolic mirror (6" reflected focal length).

QTH10(/M) Quartz Tungsten-Halogen Lamp Chapter 5: Mechanical Drawing
Rev I, May 23, 2019 Page 5
Chapter 5 Mechanical Drawing
SM2 (2.035"-40)
Internal Thread
(For Included
End Cap)
2.02"
(51.4 mm)
2.69"
(68.4 mm)
Bulb Socket
G4 2-Pin Base
Ø0.69"
(17.5 mm)
8-32 (M4)
Tapped Hole
SM2-
Threaded
End Cap
Section A-A
1.02"
(26.0 mm)
0.67"
(17.0 mm)
Ø1.90"
(48.3 mm)
Setscrew for
Adjusting Bulb Height
0.05" (1.3 mm) Hex
Quartz Tungsten-
Halogen Bulb
Lens Assembly with
ACL5040U Condenser Lens
A
A
0.05"
(1.3 mm) 2.20"
(55.9 mm)
1.39"
(35.2 mm)
C
L
2.80"
(71.1 mm)
(Nominal)
0.21"
(5.2 mm)

QTH10(/M) Quartz Tungsten-Halogen Lamp Chapter 6: Regulatory
Page 6 TTN016327-D02
Chapter 6 Regulatory
As required by the WEEE (Waste Electrical and Electronic Equipment Directive) of the European Community and
the corresponding national laws, Thorlabs offers all end users in the EC the possibility to return “end of life” units
without incurring disposal charges.
 This offer is valid for Thorlabs electrical and electronic equipment:
 Sold after August 13, 2005
 Marked correspondingly with the crossed out “wheelie bin” logo (see right)
 Sold to a company or institute within the EC
 Currently owned by a company or institute within the EC
 Still complete, not disassembled and not contaminated
As the WEEE directive applies to self-contained operational electrical and electronic products, this end of life take
back service does not refer to other Thorlabs products, such as:
 Pure OEM products, that means assemblies to be built into a unit by the user (e. g. OEM laser driver cards)
 Components
 Mechanics and optics
 Left over parts of units disassembled by the user (PCB’s, housings etc.).
If you wish to return a Thorlabs unit for waste recovery, please contact Thorlabs or your nearest dealer for further
information.
Waste Treatment is Your Own Responsibility
If you do not return an “end of life” unit to Thorlabs, you must hand it to a company specialized in waste recovery.
Do not dispose of the unit in a litter bin or at a public waste disposal site.
Ecological Background
It is well known that WEEE pollutes the environment by releasing toxic products during decomposition. The aim of
the European RoHS directive is to reduce the content of toxic substances in electronic products in the future.
The intent of the WEEE directive is to enforce the recycling of WEEE. A controlled recycling of end of life products
will thereby avoid negative impacts on the environment.
Wheelie Bin Logo

QTH10(/M) Quartz Tungsten-Halogen Lamp Chapter 7: Thorlabs Worldwide Contacts
Rev I, May 23, 2019 Page 7
Chapter 7 Thorlabs Worldwide Contacts
USA, Canada, and South America
Thorlabs, Inc.
56 Sparta Avenue
Newton, NJ 07860
USA
Tel: [phone]
Fax: [phone]
www.thorlabs.com
www.thorlabs.us (West Coast)
Email: [email protected]
Support: [email protected]
UK and Ireland
Thorlabs Ltd.
1 Saint Thomas Place
Ely CB7 4EX
Great Britain
Tel: [phone]
Fax: [phone]
www.thorlabs.com
Email: [email protected]
Support: techsupport.u[email protected]
Europe
Thorlabs GmbH
Hans-Böckler-Str. 6
85221 Dachau / Munich
Germany
Tel: [phone]
Fax: [phone]
www.thorlabs.de
Email: [email protected]om
Scandinavia
Thorlabs Sweden AB
Bergfotsgatan 7
431 35 Mölndal
Sweden
Tel: [phone]
Fax: [phone]
www.thorlabs.com
Email: [e-mail]
France
Thorlabs SAS
109, rue des Côtes
78600 Maisons-Laffitte
France
Tel: [phone]
Fax: [phone]
www.thorlabs.com
Email: [e-mail]
Brazil
Thorlabs Vendas de Fotônicos Ltda.
Rua Riachuelo, 171
São Carlos, SP 13560-110
Brazil
Tel: [phone]
Fax: [phone]
www.thorlabs.com
Email: [e-mail]
Japan
Thorlabs Japan, Inc.
3-6-3 Kitamachi,
Nerima-ku, Tokyo 179-0081
Japan
Tel: [phone]
Fax: [phone]
www.thorlabs.co.jp
Email: [email protected]
China
Thorlabs China
Room A101, No. 100, Lane 2891,
South Qilianshan Road
Putuo District
Shanghai 200331
China
Tel: [phone]
Fax: [phone]
www.thorlabschina.cn
Email: chinasale[email protected]om

www.thorlabs.com