Thursday, August 21, 2008

Hastelloy Tubes

Lenox Laser, Inc. , the leader in precision microhole technology, laser drill holes a few microns in diameter into a variety of materials including Hastelloy. Hastelloy is becoming more commonly used for a wide range of applications where the environmental conditions are highly corrosive and where most metals are unable to withstand such extremes.

Whether they be discs, gaskets, or tubes, Lenox Laser can drill holes to meet custom requirements for your specific applications. Call 410-592-3106 or email quotes@lenoxlaser.com for more information or to receive a cost effective quote.

Tuesday, August 19, 2008

Precision Microhole Arrays

If you have need for thousands of small holes (one micron and larger) drilled into 0.0625 stainless steel tubing or larger, Lenox Laser, Inc. has this and many other products readily available for you.

Of great interest to many, Lenox Laser has made precision microhole arrays with a density of 35,000 holes in a 0.25" diameter disc. Custom orders are a specialty because Lenox Laser can produce virtually any array pattern in virtually any shaped part in many materials.

Lenox Laser Pioneering New High-Powered Laser Technologies

"The high power laser parameters relevant to selecting an aperture suitable for use in the optical beam delivery system are aperture substrate material, laser power or energy, area and time."

- Gilbert R. Smith, P. F.

The development of high power lasers includes but is not limited to the following methods: Q-switching, cavity-dumping, and mode locking. In these cases, lasers operate in a pulsed regime when the single pulse or package of pulses is generated at a certain timing rate.


High energy and high power apertures are intended to be used in the optical transfer assembly using a large laser as a source. The parameters such as laser power and pulse energy, pulse duration and repetition rate become important.

Visit the Lenox Laser website for a more comprehensive view of the advances made by the Leader in Small Hole Technology.

Wednesday, August 13, 2008

Drilling and Flow Calibrating Small Holes Down to One Micron in Diameter

Lenox Laser, Inc. drills and flow calibrates small holes from one micron in diameter to six thousand microns in diameter. After flow calibrating, these orifices have a flow diameter that can be used with simple fomulae to accurately predict flow rates through them for any gas or mixture of gases under various pressure and temperature conditions. The shape of the hole has no bearing on the flow diameter thus has no negative bearing on the degree of flow control accuracy.

Flow calibrated holes have found many customer uses over the last thirteen years. They have replaced many other flow control and measuring devices used by industry. They have proven to be less costly, trouble-free and more accurate in almost all cases. These holes are drilled into many different parts and materials, such as, VCR blind gaskets, tubes with a closed end, closed pipe nipples, set screws, and many other custom shapes. The majority of holes that are drilled are in stainless steel, however, many other materials, such as, plastic, glass, and most metals are also in demand.

Let Lenox Laser help you solve your flow control and other flow related problems in an economical and precise way. For more information and technical support call 410-592-3106 or visit our website at http://www.lenoxlaser.com/

Solve Your Flow Control Problems With Flow Calibrated Orifices

Flow calibrated orifices have a flow diameter that can be used to calculate the flow rate of any gas or mixture of gases when the absolute inlet/outlet pressures and absolute temperature are known. The flow diametre gives accurate results regardless of the actual shape of the hole.

Holes flow calibrated by the Lenox Laser Corporation are now being used by thousands of customers and have proven to be more accurate and less costly than most flow controlling devices.

Shown below are some of our standard parts used for flow control. Custom sizes and shapes are readily available. Holes are drilled in a variety of materials, such as, plastic, glass, most metals and other materials.

Let Lenox Laser help you solve your flow control problems by calling 410-592-3106 or by visiting http://www.lenoxlaser.com/

Standard Drilled Gasket
Standard Gland
1/8 NPT x 3/16 Barb
Nipple Fitting
1/4-28 TPI Set Screw
1/8 Stainless Steel Tubing

Tuesday, August 12, 2008

Micrometer Thin Precision Marking with Modulation of Contrast


Marking a variety of materials is one of the strengths of Lenox Laser, Inc. Marking and engraving is required for both industrial and scientific purposes. In industry, marking and engraving is required for accounting and parts discrimination, for making delivery channels in materials for the delivery of liquids and powders, for mechanical engagement of micro-parts, etc. For scientific purposes, when used in the optical systems, precision and methods of marking can be crucial for the whole system performance. In this case, the positioning tolerances and the width and depth of marking define the contrast ratios and ability of the marked parts to serve as fiducials. These fiducials are used to align opto-mechanical systems and to perform telemetry light intensity analysis. Being able to modulate the contrast is a very important task for space born systems similar to the Hubble Telescope where available photon counts are low. NASA commissioned Lenox Laser to fabricate precise crosshair fiducials for the Hubble Telescope.

CONTRAST = (BRIGHTEST - DARKEST) / (BRIGHTEST + DARKEST)

(where brightest and darkest refer to the intensities of the light reflected from a surface)


In the case of large differences between brightest and darkest this formula reduces to a simple ratio:

CONTRAST RATIO = BRIGHTEST / DARKEST


Lenox Laser, Inc. has developed a method of maximizing and modulating the contrast of marking for a given material and pattern geometry. The process of alignment and orientation of slits or pinholes in front of the light beam can be simplified by engraving the fiducials on the holder. This technique allow one to engrave lines as wide as a few micrometers with very high or customer requested contrast.

Lenox Laser offers different standard or custom shapes of patterns. Negative or positive marking on most opaque and transparent materials are readily available and produced. Marking a periodic structure such as a set of lines spaced with variable or constant period on a surface turns the material into grading or optronic crystal. The efficiency of these devices highly deepens the accuracy and precision of the manufacturing process. It is for this reason the Lenox Laser engineering and production teams are constantly improving their tools and processing methods.

Thursday, August 7, 2008

Mercury Messenger Mission

NASA's Mercury MESSENGER Mission was launched from Cape Canaveral on August 3, 2004. Lenox Laser, Inc. was commissioned by NASA to fabricate High Power Ceramic Apertures for spatial filtering which required laser drilling holes (a few microns in diameter) with great accuracy and precision. Ceramic is just one of many readily available materials Lenox Laser is able to process to custom specifications with a relatively short lead time.

MESSENGER (MErcury Surface, Space, ENvironmental, GEochemistry, and Ranging) is scheduled to "flyby" Mercury on October 6, 2008, and ultimately be inserted in the planet's orbit by March 18, 2011. The Lenox Laser engineering and production teams take great pride in their "microscopic" contribution to the advancement of our knowledge of the solar system and of the universe.

Hastelloy Discs

Lenox Laser, Inc. was commissioned by NASA to laser drill precision 19.5 micron holes in Hastelloy discs for a helium leak detector which was to be utilized by the Galileo Spacecraft to Jupiter.
Hastelloy is the registered trademark name of Haynes International, Inc. and is applied as the prefix name of a range of over 20 different highly corrosion-resistant metal alloys. Hastelloys are also referred to as super alloys or high performance alloys by the metallurgical industry.
The predominant alloying ingredient is typically nickel. Other alloying ingredients are added to nickel in varying percentages of the elements molybdenum, chromium, cobalt, iron, copper, manganese, titanium, zirconium, aluminum, carbon and tungsten.
The primary function of the Hastelloy super alloys is that of effective survival under high temperature, high stress service in a moderately to severe corrosive and/or erosion prone environment (not unlike that of Jupiter) where common and less expensive iron based alloys would fail.

Monday, August 4, 2008

Massively Parrallel X-Ray Holography using Pinhole Technology

Read more here - X-Ray Holography using Pinhole Technology

Lenox Laser Begins Student Co-op Program

Joseph P. d’Entremont, founder and president of Lenox Laser, Inc. has had a vision for his laser drilling company to have an educational outreach to the community for some time now. His motto, “Inspiration causing Motivation for Education” has been the driving force of his desire to get kids excited about the sciences especially in the field of light and optics. Under the auspices of the Science Fair Competition of Maryland, the ground work has been laid to begin a student cooperative educational program designed to motivate young people of the Baltimore Metropolitan Area.
Derek M., a home-schooled high school sophomore, is the first of what is anticipated to be many students who will benefit from the cooperative educational program being developed by Lenox Laser. Derek has already begun working in the IT Department where he is getting on the job training in computers. The possibilities do not end there. Derek will also have opportunities to work with lasers and learn about the properties of light and its many applications. This experience will no doubt prove valuable to Derek who is considering a future career in the Air Force.
Studies have shown that student interest in the sciences has waned in recent years. The student co-op program is designed to help reverse that trend a few students at a time. One may be inclined to ask if it is worth it. Mr. d’Entremont is swift to point out that history gives many examples of individuals who have impacted the world by pursuing a scientific concept and who have worked tirelessly until they succeeded. Consider what our world would be like had it not been for dedicated people such as Thomas Edison, Alexander Graham Bell, and (who knows) Derek M.