Solid Imaging Home
Solid Imaging Products
Welcome to the SLA-500 Product Page


1. Do I have to change resin ?
  • Yes, RPC 100ND & Somos 7120, 8120, & 9120 resins, will work fine.
2. How long will my machine be down ?
  • The install will take place within an 8 hour day. Most of our customers
    drain the old Argon resin, and add the new Solid state resin, on the day prior. 
    This way the resin is at the proper temperature, prior to our arrival.
3. What is the spot size ?
  • The spot size can be set to the same size you have been using with your
    Argon Ion laser.
4. Is your warranty "pro-rated" ?
  • No ! You do not have to pay twice, for one laser.
5. Is this the same solid state laser technology that 3D Systems currently uses?
6. What is the cost of a replacement laser, after the warranty has expired ?
  • Laser "#2", will cost $38,500.00 + travel expenses. This laser will have
    the same warranty as the first laser; 1 year / 5,000 hours.
6.1 Cost of ownership / year, for the first 2 consecutive lasers:
  • (worst case scenario)
    400 milliWatt laser will cost $63,000.00 / year, for (2) two years, or 10,000 hours
    (typical scenario)
     400 milliWatt laser will cost $31,500.00 / year, for (4) four years, or 20,000+ hours
7. Is the cost of resin included with the purchase price ?
  • No. Every one of our customers has a resin vendor already: Vantico, Somos, or
    RPC. We prefer to be only a laser vendor & service provider.
8. What is your warranty response time ?
  • 9 out of 10 times, we can provide technical assistance with in 4 hours. 
    (1 out of 10 times, with in 8 hours - we're only Human here) We stock lasers 
    & replacement parts, so your only a "Fed-X" away from our inventory. If 
    required, we can have an FE on site with 24 to 48 hours. 
9. How many of your solid state lasers have failed under warranty ?
  • One. The RF driver failed in the power supply, it was replaced within 24 hours.
10. What additional AC voltage is required ?
  • None, we use the existing internal 220 or 110  AC voltage.
11. Are your solid state lasers water-cooled ?
  • No.
12. Do you provide technical assistance ?
  • Yes we do, & free of charge. We provide technical support for customers
    and non-customers alike. On our solid state, (resin applications inquiries), 
    on the Argon lasers (for the SLA-500's), and even on the HeCd's. We also 
    provide support on the other electronic equipment on the SLA. (eg. Vat
    controller, z-axis driver, motors, AOM, scanners, scanner drivers, cpu, etc.)
13. How long have you been in business ?
  • 12 years. 10 years under Laser Innovations.
15. How many years has Spectra-Physics been in business ?
  • 35 plus years. The past 10 years have been concentrated on solid state lasers. 
Back To Top
SLA-500 References





3 Dimensional Engineering, Inc.
Mr. Jim Harrison
(954) 972-9906
  • (1) SLA-500 with a 400mW Solid State Laser
    RPC 300ND
Accelerated Technologies Inc.
Mr. Mike Durham
(512) 990-7199
  • (1) SLA-500 with a 400mW Solid State Laser
    Somos 7120
Arrk Product Developement Group
Mr. Xico Ramirez
(858) 552-1587 x351
  • (1) SLA-500 with a 400mW Solid State Laser
    Somos 9120 
Proto Technologies, Inc. 
Mr. Greg Nay
(509) 891-4747
  • (1) SLA-500 with a 400mW Solid State Laser
    RPC 100ND
Dynacept Corporation
Mr. David Yarnell
(845) 278-8500
  • (1) SLA-500 with a 400mW Solid State Laser
    Somos 7120
Auburn Engineering
Mr. Eric Gunderson
(248) 852-6250
  • (1) SLA-500 with a 400mW Solid State Laser
    Somos 7120
Rapid Processing Solutions, Inc. 
Mr. Paul Britt
(316) 265-2001
  • (1) SLA-500 with a 400mW Solid State Laser
    RPC 100ND
 Back To Top
2 Year Cost Comparison    SLA-500 





Argon Ion Total cost of ownership is $272,500.00
Solid State Total cost of ownership is $118,170.00     (A savings of $154,330.00)
Argon Ion 
Initial cost of laser is $42,500.00. (3D Systems list price)
Laser head replacements is ~3.6 x $42,500.00 = $153,000.00
Downtime / Low Power is approximately 1 week per replacement = 25 days (600 hours)
600 hours x $90.00/hour = $54,000.00
Average output power is 400mWatts
Electricity is ~$23,000.00
Total cost of ownership is $272,500.00

Solid State
Initial cost of Laser is $87,450.00
Initial cost of resin is ~$20,000.00** 
Laser Head replacements is Zero. No down time, or those extra long, low power builds. 
Laser diode replacement $14,500.00 (not typical under 11,000 hours)
Downtime is 8 hours x $90.00/hour = $720.00
Average output power is 400mWatts (Constant 280mW at the Vat)
Electricity is ~$2,000.00
Credit, or Sale of your Ion laser ~$6,500.00
Total cost of ownership is $118,170.00. (A savings of $154,330.00)

** This proves to increase throughput of production by a factor of 2x

 Back To Top
SLA-500 Replacement Parts





  • Coherent Argon Ion Lasers. For purchase or loan to our customers.
  • All of the optics: steering mirrors, barrel lens assembly, AOM, window.
  • Pentium cpu upgrades.
  • X-Y scanner encoder motors.
  • X-Y scanner encoder motor driver electronics.
  • X-Y scanner encoder mirrors.
  • Z-stage motors, with or without optical feedback.
  • Z-stage driver electronics, with or without optical feedback.
  • Laser leveling system, repair or replacement.
  • Rim controller repair, or replacement. 
  • Vat leveling motor(s), or driver electronics repair & replacement. 
  • We provide PCA - 500 service & parts
Price list - F.O.B. Santa Paula, CA
Laser Innovations' Solid State replacement parts
$14,500.00 Diode assembly for 500-LI-400
  1 year / 5,000 hour warranty - not prorated
$18,500.00 Argon Ion Laserhead "swap-out" for SLA-500
  Installed on-site (continental US only). 
Minimum two week notice. 
500mW of enhanced 351.1nm 
Warranty of one year or 2,000 hours. 
Our warranty is not pro-rated
$18,500.00 Diode assembly for 500-LI-800
  1 year / 5,000 hour warranty - not prorated
$38,500.00 Complete laser system "swap-out", 500-LI-400
  1 year / 5,000 hour warranty - not prorated
$43,500.00 Complete laser system "swap-out", 500-LI-800
  1 year / 5,000 hour warranty - not prorated
CPU Upgrade 
Call for pricing Pentium III 500MHz, 19" Rack mounted to original factory specifications, 8-12Gig HD, 128Meg RAM, 48xCD, Windows N/T workstation, Ethernet card, 1.44 floppy drive
Back To Top





Graph 1

The average useable lifetime of an argon ion laser is approximately 5000 hours, upon which the average end of life power observed is ~100 mW.  In order to achieve the typical 300 mW at the vat, the average laser needs to run at approximately 400 mW at the head to counter the usual optical path losses, such as the external AOM found in the SLA-500.  In order to maintain this desired level of performance, the tube current must be raised over the life of the laser.

The solid state laser has an initial output power of 400 mW and remains at 400 mW after 5000 hours.  As an added benefit, system throughput is typically improved due to the removal of the AOM, which is no longer needed with this state-of-the-art upgrade.   Additionally, there is no discernible increase in the utility requirements such as those required by an aging argon ion laser to maintain output power.

Using the above parameters, how much more work does the solid state laser execute over the argon ion laser in a 5000 hour period, prior to the need of being replaced by a new argon ion laser?

Work Executed by the Argon Ion Laser

Using a best-case scenario, the typical argon ion laser's performance approximates Graph 1.  Using regular maintenance to counter typical degradation, power can be made to remain somewhat constant in the first 1000 hours of operation.  After this point, the degradation can be approximated mathematically by the curve of a parabola.  The total area under this combined curve is the work executed by the argon ion laser (W=Pt).  It is worth noting this is the point where the laser tube current needs to be raised periodically to maintain the desired vat power.

In order to find the area under the curve, we need to find an equation that satisfies the curve. The easiest way to produce an equation for the argon ion laser's curve is to observe the inverse parabola, find an equation, then switch the x and y to gain the equation of the curve. 

Graph 2

Taking the known points for the curve of the argon ion laser and interchanging them create the parabola.  E.g.: V (1000,400) => V (400,1000).  The graph that is created from this process is an inverse of the original graph.  For inverse functions, the graph of either function is the reflection of the graph of the other across the line y = x.  Once we find an equation for this parabola we can interchange the x and y to generate an equation for the parabola’s inverse, which will be the equation of the curve for the argon ion laser.

The inverse of the argon ion laser’s curve produces a vertex V (400,1000) and a point P (100,5000), (see Graph 2, Inverse Curve of an Argon Ion Laser). 

The equation of a parabola is in the form y = ax2 + bx + c.  After completing the square in x and plugging in the vertex V (h,k), the equation (x-h)2 = 4p(y-k) is produced.  Plugging in a point other than the vertex will give us the value of p.


V(400,1000)     P(100,5000)
(x-h)2 = 4p(y-k)
(x-400)2 = 4p(y-1000)
(100-400)2 = 4p(5000-1000)

p = 45/8 = 5.625              
=>   (x-400)2 = 4p(y-1000)
                                              (x-400)2 = 22.5(y-1000)
                                               y = ­ (x –400) 2 + 1000

This is the equation for the inverse function. To find the equation for the curve of the argon ion laser, simply interchange the x and y. The equation produced is: y = ±(22.5) (x-1000) + 400

Only the lower half of the graph, the negative portion, represents the curve for the argon ion laser.  Therefore, the equation is: y = -(22.5) (x-1000) + 400

Work Executed by the Argon Ion Laser

The area under the straight section is equal to ab f(x) dx.

y = 400
f(x) = 400
Wa = 01000 400 dx
Wa = 400,000

The area under the curve is equal to ab  f(x) dx.

y = -(22.5) (x-1000) + 400
f(x) = -(22.5) (x-1000) + 400
Wb =
10005000 [ -(22.5)(x-1000)1/2 +400 ] dx

                       METHOD OF SUBSTITUTION

                                u = x – 1000                  where x = 1000, u = 0
du = dx                           where x = 5000, u = 4000

Wb = 04000 [-(22.5) u1/2 + 400] du
Wb = [-(2/3)
(22.5)u3/2 + 400u ]04000

Wb 800,000

Total work is equal to Wa + Wb = 1,200,000

Work Executed by the Solid State Laser

The equation for the solid state laser is y = 400.

y = 400
f(x) = 400

W =
05000 400 dx

W = [400x]05000
W = 2,000,000

Work Difference Between the Solid State Laser and Argon Ion Laser

Work done by the solid state laser   * 100 = %
Work done by argon ion laser

 2,000,000   *  100  =  167%

In 5,000 hours, the Spectra Physics solid state laser executes 167% of the work the argon ion laser executes in 5,000 hours.  In other words, the Spectra Physics solid state laser executes an additional 67% of work than the argon ion laser.  



In these days of ever increasing electricity prices, we wanted to highlight the low power consumption level of the Solid State laser verses the older technology of the Argon laser.








Back To Top
SLA-500 Optics
$ 1,750.00 500-AOM
AOM assembly 
$ 1,850.00 500-In/Out
Input, and output barrel lens assembly 
$495.00 500-Window
Window optic 
$ 445.00 500-Steer
Main steer mirror 
$ 345.00 500-Peri
"Periscope" Steering optics 
$ 795.00 500-Scan
Scanning mirrors, for the encoders
Back To Top
Solid Imaging SLA-1
Solid Imaging SLA-190
Solid Imaging SLA-250
Solid Imaging SLA-2500
Solid Imaging SLA-350
Solid Imaging SLA-3500
Solid Imaging SLA-5000
Solid Imaging SLA-7000
Solid Imaging Solid State Laser Systems
Solid Imaging Ion Laser Repair
Solid Imaging Services
Solid Imaging resources
Solid Imaging Utilities
Solid Imaging References
Solid Imaging Contact Us
Solid Imaging About Us

Solid Imaging LeaseSolid Imaging Lease ApplicationSolid Imaging Lease FAQ

Home       Products       Services       Resources       Utilities       References       Contact Us       About Us    Lease

View Map
Copyright © 2001-2012  Laser Innovations. All rights reserved. Ph (805) 933-0015  Fax (805) 933-0042
The information on this page is from the Laser Innovations website ( and is intended for the personal use of the customer only and may not be sold or transmitted to another party. We assume no responsibility for errors or omissions.
Please note: SLA, is a registered trademark of 3D Systems.
Laser Innovations; 1150 E. Main Street; Santa Paula, CA 93060

Terms and Conditions of Sales