L2421

L2421 HAMAMATSU | Alldatasheet

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Technical content

FEATURES

2.0 % (Max.) Long life Instantaneous starting and restarting High intensity in deep UV region Point light source, High luminance

APPLICATIONS

UV curing for epoxies, etc. Interferometer, Refractometer Microfilm enlarger A Mercury-Xenon Lamp is a special lamp designed to provide high radiant energy in the ultraviolet region. Since an optimum mixture of mercury and xenon gas is enclosed, this lamp offers the characteristics of both Xenon lamps and super-high-pressure Mercury lamps. For example, the spectral distribution of a Mercury-Xe- non Lamp includes a continuous spectrum from ultra- violet to infrared of the xenon gas and strong mercury line spectra in the ultraviolet to visible range. In com- parison to super-high-pressure mercury lamps, the ra- diant spectrum in the ultraviolet region is higher in in- tensity and sharper in width. The Mercury-Xenon Lamp also features instantaneous starting and restarting, which are difficult with super-high-pressure mercury lamps, thus making them an excellent choice as ultraviolet light sources. Conventional Mercury-Xenon Lamps have a shortcom- ing in that the arc point fluctuates and moves gradually with operating time as a result of the cathode erosion. Hamamatsu has used its many years of experience and expertise in the fields of photonics to produce Super- Quiet (SQ) Mercury-Xenon Lamps. The Hamamatsu SQ Mercury-Xenon Lamps employ a specially developed cathode which has minimized the cathode erosion, thus allowing extremely high stability and long life. SUPER-QUIET MERCURY-XENON LAMPS DEEP UV LIGHT SOURCE FOR PRECISION MEASUREMENTPATENT Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2003 Hamamatsu Photonics K.K. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.

SUPER-QUIET MERCURY-XENON LAMPS NOTE: Open-circuit voltages necessary for certain lighting of lamps. The life end is defined as the time when the radiant intensity falls to 50 % of its initial value or when the output fluctuation exceeds ±2.0 %. L2421 L2481 L2481-01 1.0 1.0 1.3 1.7 2.0 2.5 3.0 100 150 200 350 500 3.5±0.5 5.4±0.5 5.5±0.5 7.5±0.5 8.0±0.5 14.0±1.0 20.0±1.0 RemarksType No. Outline Window MaterialArc Length (mm) Lamp Current (A dc) Lamp Voltage (V dc) Power Con- sumption (W) Supply Voltage Typ. (V dc) Trigger Voltage (kV) 50 W, Cathode Metal Base 7.5 mm

75 W, Cathode Metal Base 9 mm

75 W, Cathode Metal Base 7.5 mm

75 W, Metal Base with Screw

100 W, Cathode Metal Base

100 W, Cathode Metal Base 7.5 mm

100 W, Metal Base with Screw

100 W, Ozone-free Silica Bulb,

150 W, Metal Base with Screw

150 W, Ozone-free Silica Bulb,

200 W, Metal Base with Screw

200 W, Ozone-free Silica Bulb,

350 W, Metal Base with Screw

350 W, Ozone-free Silica Bulb,

500 W, Metal Base with Screw

L2481-02 L2422, L7046 L2422-01 TLSXA0006ECTLSXA0005ECTLSXA0045EC TLSXA0007EC TLSXA0005EC TLSXA0006EC UP 37.0 ± 0.5 7.5 7.5 METAL BASE 82 MAX. 90 MAX. UP 37.0 ± 0.5 9 METAL BASE 82 MAX. 90 MAX. UP 37.0 ± 0.5 7.5 METAL BASE 82 MAX. 90 MAX. UP 37.0 ± 0.5 9 METAL BASE M2.3 M2.3 82 MAX. 95 MAX. UP 37.0 ± 0.5 9 METAL BASE 82 MAX. 90 MAX. UP 37.0 ± 0.5 7.5 METAL BASE 82 MAX. 90 MAX.

C6979, -10, C2577 C6979 C6979-10 C2577 C6979 C6979-10 C2577 C7535 C7535-10 C2577 C7535 C7535-10 C2577 C4338 C2578 C2578 These dropper type power supplies need trigger unit. Please refer the page 8. L2422-02 L2482, L7047 L2423, L2570 L2421 L2481 L2481-01 L2481-02 L2422 L2422-01 L2422-02 L7046 L2482 L7047 L2423 L2570 L2483 L2917 L8288 Not required Not required Not required Not required Not required Forced Air Cooling Forced Air Cooling Vertical ±15 or Horizontal ±15 Vertical ±15 or Horizontal ±15 Vertical ±15 or Horizontal ±15 Vertical ±15 or Horizontal ±15 Vertical ±15 or Horizontal ±15 Vertical ±15 Vertical ±15 ±0.5 ±0.5 ±0.5 ±0.5 ±0.5 ±0.5 ±0.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 500 500 500 1000 1000 500 1000 1000 1000 1000 2000 2000 1000 2000 Life Guar- anteed Life (h) Aver- age Life (h) Fluctua- tion (p-p) Max. (%) Drift Typ. (%) Orientation (degree) Cooling Weight (g) HAMAMATSU Power Supply Type No. Unit: mm Output Stability Type No. TLSXA0047ECTLSXA0009EC TLSXA0007EC TLSXA0055ED TLSXA0008EC L2483, L2917 L8288 UP 37.0 ± 0.5 9 METAL BASE M2.3 M2.3 82 MAX. 95 MAX. UP 58.0 ± 0.5 METAL BASE 125 MAX. 150 MAX. UP 58.0 ± 0.5 METAL BASE 125 MAX. 150 MAX. UP 65.0 ± 0.5 METAL BASE 150 MAX. 175 MAX. UP 70.0 ± 0.5 METAL BASE 150 MAX. 175 MAX.

+HV (+) (-) STARTER CIRCUIT DC-DC CONVERTER AUXILIARY DISCHARGE CIRCUIT CONTROL CIRCUIT CONTROLLING PULSE DURATION C4251/C4339 (OPTION) CONTROL FEED BACK 100/200 V ac INPUT +HV (+) (-) STARTER CIRCUIT MAIN DISCHARGE CIRCUIT AUXILIARY DISCHARGE CIRCUIT CONTROL CIRCUIT C7535 TLSXC0009EB TLSXC0010EB G Block Diagram for Switching TypeG Block Diagram for Dropper Type LAMP POWER SUPPLIES Using Mercury-Xenon lamps in photometric applications requires an extremely stable power supply. We recommend using Hamamatsu power supplies to obtain full performance from super-quiet Mercury-Xenon lamps. Hamamatsu provides two types of power supplies: dropper type and switching type. Dropper type power supplies feature extremely high stability. Switching type power supplies have less stability but offer advantages such as light weight and high cost performance. Select the type that meets your application. Hamamatsu also manufactures various types of OEM power supplies. Please feel free to consult us with your specific needs. ACCESSORIES C4251 144 × 176 × 280 250 × 340 × 350 220 × 150 × 330 150 × 180 × 280±4 ±0.10.1 50/75/100/150/200 50/75/100 350 Type No. Control Method Suitable Lamps (W) Weight (kg) Dimensions W × H × D (mm) Discharge Current Stability (at +25 °C) Ripple (p-p) Max. (%) Drift Max.(%/h) Input (V ac) Dropper Type Switching Type B AExcluding projection parts. BThe dropper type power supplies are used in conjection with the C4251 or C4339 Trigger Unit (option). These power supplies use a trigger mode in which a positive high voltage is applied to the anode; so use care concerning the insulation for the anode. Trigger Unit A Start Method Manual Manual NOTE Light weight, for general purpose High stability, with time counter High stability NOTE: C4251 Manual C4339 Auto C4339 Auto C6979 C6979-10 C7535 C7535-10 C4338 C2577 C2578

Unit: mm F LAMP E ANODE TERMINAL COOLING FIN

20 FUSED SILICA WINDOW

B D 30 50 C A E2419 E2420 A B C 110 to 140 90 to 120 D E F 42.5 Weight 1.1 kg 1.2 kg TLSXA0011EA E7536 (For 150 W, 200 W Lamps) ELLIPSE REFLECTORS Hamamatsu also provides the Ellipse Reflectors developed for SQ Xenon/SQ Mercury-Xenon lamp (cartridge type). Stable light output will be obtained without any adjustment of the optical axis till the end of lamp life. The arc point of Hamamatsu SQ Xenon/SQ Mercury-Xenon lamps has ex- cellent stability. Therefore, cartridge type SQ lamps (trouble-free optical axis for lamp exchange) can be em- ployed. It will be able to be applicable for wide variations like UV curing and etc. Hamamatsu can offer wide varia- tion in its options for your applications. 100 COOLING FAN FOCUS LENS BACK AND FORTH ADJUSTMENT SCREW M3 HEX SOCKET HEAD BOLT M37 P=1 OUTPUT LENS ( 30) 140 280 510 5 100 5 FRONT VIEW BOTTOM VIEW SIDE VIEW LAMP RIGHT-LEFT ADJUSTMENT SCREW M3 HEX SOCKET HEAD BOLT SIDE COVER MOUTING SCREW 4-M3 HEX SOCKET HEAD BOLT SIDE COVER (REMOVE THIS COVER WHEN REPLACING LAMP) LAMP VERTICAL ADJUSTMENT SCREW MIRROR BACK AND FORTH ADJUSTMENT SCREW 4-M4 PLASTIC FEET ARE ATTACHED TO THE BOTTOM OF THE UNIT BUT CAN BE REMOVED TO USE THEIR HOLES FOR INSTALLATION OF THE LAMP HOUSING. TLSXA0083EA E2419 (For 75 W, 100 W Lamps), E2420 (For 150 W, 200 W Lamps) LAMP HOUSINGS For simple and safe use of lamps, Hamamatsu provides lamp housings that give optimal performance in terms of light output stability, efficiency and life. There are three types of lamp housings: the E7536 (for 150 W and 200 W lamps) is designed to improve handling, while the E2419 (for 75 W and 100 W lamps) and E2420 (for 150 W and 200 W lamps) feature simplified configurations. The E7536 ensures excellent lamp stability and high output of collimated light by means of the built-in reflecting mirror and exit lens. A built-in interlock function, lamp starter and air cooling fan enhance operator safety. The temperature within the lamp housing is held below 40 °C. Moreover, 3-axis adjusting screws are provided on the outside of the housing to allow simple optical-axis alignment, making it really easy to use. Simplified type E2419 and E2420 lamp housings are compact and ideal for experimental setups. These lamp housings can be readily mounted on a commercially available optical stand. When a lamp is used with an elliptic reflector, a different type of power supply may be required. Please consult our sales office for a suitable power supply.

(10-3 Tesla) Type Distance (mm) Position (Direction) Magnet Example TDK Co. FB3G D10-5 (10 mm dia. 5 mm thickness) TDK Co. FB3G D15-7 (15 mm dia. 7 mm thickness) See Fig. 1 See Fig. 2 38±1.0 55±1.0 9.5 to 10.5 12 to 12.5 75 W 100 W 150 W 200 W TIP-OFF TIP-OFF TIP-OFF CATHODE (-) CATHODE (-) ANODE (+) ANODE (+) ORIENTATION FOR HORIZONTAL OPERATION ORIENTATION FOR VERTICAL OPERATION TLSXC0012EA Unit: mm Unit: mm TLSXC0011EA Fig.2 Fig.1 NOTE : “DISTANCE” in the table defines the distance between the center of arc and the surface of a magnet. UP (TOP VIEW) N MAGNET S 38 ± 1.0 (SIDE VIEW) N S UP (TOP VIEW) N MAGNET S 55 ± 1.0 (SIDE VIEW) N S 5 ± 1.0 It is necessary to use an adequate magnet and set it at correct position in order to get the best performance of lamps, according to the following table. HANDLING PRECAUTIONS (Read before using) Installation Precautions 1. Always handle the lamp with protective cover in place. High pressure gas (approx. 1 MPa at room temperature, approx. 4 MPa during operation) is contained in the lamps. Inflicting strong shocks to the lamp or scratching of the surface of the glass bulb may cause the bulb to burst, causing danger from flying glass fragments. When handling lamps, always wear a long sleeved shirt and gloves for protection as well as a face protector. This protective cover is also necessary when replacing lamps; so store it for future use. (Refer to item 8.) 2. Never touch the glass portion of a lamp with bare hands. Lighting a lamp with dust or fingerprints on it causes print marks and loss of bulb transmittance, thus lowering the light output and the mechanical strength of the glass bulb. To remove dust and fingerprints, wipe the bulb off using cotton or gauze moistened with high-quality alcohol or acetone, and throughly wrung out. Use care not to apply and strong shocks. 3. Install the lamp correctly. (A) Correct polarity of the lamp is important. Even mo- mentary reversal of the polarity will damage the cath- ode, causing failure of the lamp and will void the war- ranty. When installing the lamp vertical to the ground, insure that the indication marking which denotes “UP” is in the proper position. This indication marking can be found on the anode side of the metal base, and also on the plastic lamp protector. (B) When installing the lamp in the horizontal position make sure the “tip-off” is parallel to the ground. Ad- just the arc point of the lamp so that the discharge stays along the center line of both electrodes. This can be accomplished by the use of a magnetic field. HANDLING PRECAUTIONS

1. Use caution concerning the high temperature and high voltage. These lamps start discharge at high triggering voltage of 20 kV. Be sure insulation is sufficient to prevent danger of electrical shock. During operation and immediately af- ter, the lamp is extremely hot, so never touch with the hands or place them close to highly combustible mate- rial. 5. Caution concerning ultraviolet radiation. These lamps radiate ultraviolet rays which are harmful to the eyes and skin. Avoid looking directly at a lamp or al- lowing its light to fall directly on the skin, as there is dan- ger of burning injury. 6. Always observe the rated values. The rated operating current for these lamps is specified (refer to pages 6, 7.). If used outside the specified range, operation will become unstable and the life will be short- ened drastically. Operation outside the rated values will void the Hamamatsu warranty. The 350 W type and 500 W type requires forced air cooling. 7. Replace the lamp after the total number hours of operation exceeds the average life plus 500 h, or when the inner walls of the bulb become extremely blackened. When the total number of hours operation has exceeded the average life plus 500 h, vaporization of the electrodes and sputtering on the bulb causes progressive darken- ing, lowering the lamp’s heat radiation and increasing the interior temperature and pressure of the lamp to danger- ous levels that could lead to breakage. Thus, when either condition is observed, replace the lamp immediately. Removal Precautions 8. Handle used lamps with the protective cover. When removing a lamp from the lamp housing, wait until cools. Since high-pressure gas is contained in the lamp, rough handling can cause the lamp to shatter; therefore handle used lamps as carefully as new lamps. Then en- close it to the protective cover as it was. The Mercury-Xenon Lamp should be discarded through an approved waste disposal company, or should be re- turned to any Hamamatsu sales representative with reparked in its original packing (or in an equivalent se- cure package). CONCERNING LAMP HOUSINGS Consider The Following Points When Designing A Lamp Housing A. A lamp housing should always have a sturdy cover. High pressure gas (approx. 1 MPa at room temperature, approx. 4 MPa during operation) is contained in the lamps. Lamp housings should always have a sturdy cover in anticipation of the possibility of the lamp shattering for any reason. B. Do not fasten lamps at both ends when install- ing. The glass bulbs of lamps expand from heat during op- eration. Use a flexible fitting at one end (normally the anode side) and construction that can absorb the heat expansion. C. When focusing the light, take care to avoid ex- cessively high internal lamp operating tempera- tures. When focusing the light from a lamp with a mirror, etc., the lamp operating temperature can become extremely high if there is a focal point on the bulb wall or electrode. Use care concerning operating temperature when using such a mirrors, etc. D. Use caution concerning high operating tem- peratures. Maintain the lamp surface temperature at less than 750 °C (1382 °F) and the metal base surface temperature (an- ode side) at less than 200 °C (392 °F). (The temperature at the anode is normally higher than at the cathode.) If the lamp operating temperature exceeds these upper limits, oxidation of the electrode wire as well as exces- sive consumption of electrodes and filled gas occur and greatly shorten the lamp life. The pressure inside the lamp may also increase excessively and cause the lamp to shatter. Leave allowance for the heat capacity of the lamp housing for efficient heat radiation. Forced air cooling with a fan is necessary for the 350 W and 500 W lamps, so take care to ensure that the fan does not stop during operation and for 3 to 5 minutes after turning the lamp off. Convection currents in the xe- non gas filled in the lamps increase considerably when a strong breeze from a fan blows directly on a lamp, lower- ing the light output stability, so position the fan carefully.

E. Install sufficient high voltage insulation to avoid leakage of trigger high voltage. Use high quality insulation materials and maintain adequate insulating distances since the trigger voltage reaches 20 kV to 30 kV upon start-up. A 1 cm (3/8”) air gap will with- stand only about 10 kV before arc discharge occurs. The power supply output should be delivered with a high-volt- age (more than a few tens kV) and heat resistant, non- flammable cable, which should be as short as possible. Make sure there is no contact between the power supply cable and the metal chassis of the lamp housing. Wher- ever the possibility of contact exists, a high quality silicon insulating material should be employed. F.Ensure the lamp holder is not oxidized. Ensure the lamp holder is not oxidized. If it is oxidized, there will be heating in the lamp holder and the radiant intensity may become unstable due to the lack of contact. When it is oxidized, the lamp holder should be replaced or the oxide should be removed. WARNING Do not look at the lamp without proper eye protection while in operation.

• UV (ultraviolet) rays can damage the eyes and permanently may impair eyesight. The lamp radiates UV rays which are harmful to your skin. Proper skin protection must be worn or avoid any direct exposure.
• UV ray may injure skin exposed to it. Do not place flammable material near the lamp when in operation.
• Placing the operating lamp near flammable materials may cause a fire. The lamp reaches high temperature while in operation, and shortly after turn-off, use care when touching the lamp.
• High temperature lamps will cause burns. The lamp has high internal gas pressure, do not subject it to shock, stress or scratches. These stresses may result in the explosion of the envelope. The lamp must be installed in proper housing before operation.
• If broken, flying glass fragments may cause injury. The power supply to the lamp must be turned off before installation or removal, or any maintenance.
• Failure to do this may result in electrical shocks, damage to eyesight or skin burns, etc. CAUTION Observe the installation direction and polarity of lamps.
• Incorrect installation may damage the lamp. Be sure to use a power supply that provides an optimal current value for the lamp.
• Use of an improper power supply may cause overheating or damage the lamp. Do not use the lamp in damp locations subject to high humidity, precipitation, or con- densation.
• Operating the lamp in high humidity may result in electrical shocks or damage to the lamp. Always wear a protective mask and garment when installing or removing the lamp.
• If broken, exploding glass fragments may cause injury.

The warranty period will be one year after shipment or specified life time comes first. The area of warranty is limited to replacement of the faulty lamp. Faults resulting from natural disasters and incorrect usage will also be excluded from warranty.

For details,refer to the catalogs which are available from our sales offices. *PATENT : JAPAN Pat. No. 1508827 Metal Halide Lamps Since Metal Halide Lamps have a flash efficiency approx. 4 times higher than halogen lamps and xenon lamps, they can produce an output 4 times higher if power consumption is same. In addi- tion, the short-arc type is similar to a point light source, making optical design easy. The short life problem caused by the short arc has also been solved, thereby achieving a long life of more than 3000 h in the case of the 575 W type. As their color tem- perature characteristics are similar to daylight color, exact col- ors (RGB) can be reproduced. Metal Halide Lamps are suitable in applications such as over- head projectors and liquid crystal projectors. Super-Quiet Xenon Lamps Hamamatsu is producing Super-Quiet Xenon Lamps as continu- ous spectrum light sources. The radiation spectral distribution is continuous over the ultraviolet, visible and infrared ranges, so these lamps are ideal as light sources for all kinds of photomet- ric purposes such as spectrophotometers and so on. Depending on the application, various types of lamps are available from 35 W to 300 W. Super-Quiet Xenon Flash Lamps The Super-Quiet Xenon Lamp lineup also includes flash mode models having compact, small heat generation and good arc sta- bility. It has the good features for high precision photometry in better stability of 5 times and longer lifetime of 10 times than conventional lamps. Depending on the applications. Hamamatsu can offer SQ type having excellent stability, built-in reflector type with high output power, HQ type for general use and 60 W type. They are also applicable for the light source in high speed cam- era operation and strobe light source. TLSX1009E09 MAY 2003 IP Printed in Japan (1000) HAMAMATSU PHOTONICS K.K., Electron Tube Center 314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 E-mail: info@hamamatsu.de United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44(0)1707-325777 E-mail: info@hamamatsu.co.uk North Europe: Hamamatsu Photonics Norden AB: Smidesvä gen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 E-mail: info@hamamatsu.se Italy: Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741 E-mail: info@hamamatsu.it WEB SITE http://www.hamamatsu.com