Useful links and
reference
My Schedule
My Website
Graduate
and Extended Studies MSE Programs at SJSU
For information
on downloading Code V educational, contact program coordinator
at KLATencor (internal)
Synopsis / ORA
Sign up for
customer support portal
Download
the introduction to Code V training PDFs
Chapters114 these will be assigned as reading
Autodesk for downloading AutoCAD
educational and help (coming soon)
Online Course Videos (Available
only for KLATencor employees
Martin
Luther King Library SJSU
OSA
(Optical Society of America)
SPIE
(International Society of Optical Engineers)


Course Syllabus: ME2971
Class: Tuesday 4:005:00 PM at
KLATencor Building 1 Room 2301Confosious Room.
Office hour: Tuesday 3:003:50 PM at
KLATencor Building 1 Room 2301
My coordinates and office hours plus all
the necessary information about the course, testing, grading etc. can be
found on the course syllabus. Please read it carefully at the beginning and
follow
the announcements on this page for changes.
Check your email and the website at least
twice a week for important announcements.
Lecture Notes:
I will post the lecture notes as a guide and will frequently update/correct
them as we advance during the semester. Please watch for typos and
mistakes. I will really appreciate your help on correcting the notes and
suggestions for new material, topics and in general improving the course.
Please send your comments and suggestions via email to: Nayer.Eradat@SJSU.edu.
Lectures are recorded for internal use of
KLATencor employees so if you miss a class follow the link to the course
videos and submit the assignments on time for getting full credit.
Link to the homework assignments can
be found on the course timetable.
Special thanks
to Prof. Jim Burge of the College of Optical Sciences Center of the
University of Arizona for allowing the use of his lecture notes and his
students’ reports and tutorials on various subjects throughout the
course.
ME2971 Fall 2011 offered by SJSU at KLATencor, Instructor: Nayer
Eradat
Tentative Course Topics and Schedule:
Week: wk; Number of hours: h; Workshop: ws; Lecture: lec
Yoder: Y; Online lecture notes: LN; CodeV
introductory user guide: CV; Vukobratovich: V
wk
Date

hrs

Class / content /
knowledge

Reading &
Assignment

Objectives
/Skills

1
9/13

1h lec

Course overview
and structure
Teaching method
Student learning objective
Expectations for technical reports. Intro to Optomechanical
Engineering (OME)

Y1 (means Yoder
chapter 1)
LN1
(Lecture notes 1)

Understand role
of the optomechanical engineer (OME) in general
Write quality, concise technical reports
Understand key issues to be addressed in a technical report


2h lec

Optical system
terminology refresher
Nature of light
and basic laws
First order
optics of lenses & mirrors, ray tracing

LN2
HW1
Selected
solutions by the students
Martin Aalund
exta
Chunlin Chen
Patrick Parker

Dual nature of light, harmonic wave properties, index of
refraction, dispersion, Abbe number, Snell’s
laws, definition and purpose of optical systems, OPL, wavefront, phase,
ray tracing, diffraction, matrix methods, cardinal points and planes,
object, image, cardinal point relationships, system LOS, magnification,
image orientation, thin prisms


1h ws

Ordering and
installation of the software
Overview of the
CODE V

CV1 & CV2
Creating a simple
optical design using a ray trace program

Software intro and how to purchase






2
9/20

0.5h lec
20 min
Talk

Basic optics terminology (continued)
Clear aperture, vignetting,
Aberrations
Optomechanical System requirements and design
guidelines at KLATencor by Guest Speaker

LN3
Midterm project specs proposal guideline:
PDF

field of view, apertures & stops,
Understand role of the optomechanical engineer (OME)
and how is it done at your company


2h ws

Analyzing performance of a simple optical design,
Aberrations

CV2
Optical analysis of simple optical system using ray
trace program

Understand Aberrations
Reporting the performance


1h lec

Optical design flow, generation and
interpretation of the specs.
Aberrations.

LN4
Optical design flow and aberrations
HW2
Analysis of aberrations and alignments in a ray
tracing program,

3^{rd} order aberrations,
recognition of each, parallel plates and their aberrations.






3
9/27

2h lec/ discussion

Beam walk, Image motion, optical invariant,
introducing misalignment & error

LN42
Optical design flow (continued)
LN5
Y7.13

Calculate image shift for 6
degrees of freedom motion of lens, mirror, window
Decompose rotation about one point
to rotation about another point plus translation
Calculate image shift for
rotation of optical system about an arbitrary point for object at
infinity.
Calculate image shift for a
general case of any element motion


1h ws

System line of sight (LOS) and
Root Sum Square (RSS)
Error budgets and tolerances in optomechanical systems

LN6
CV3 & CV4
HW3 (Due on 10/11)

Understand issues for RSS
combination
Estimate RSS combination for
large number of parameters
Error analysis and error budgeting for coupled and
independent sources of error.

4
10/4


No class make up date: Nov 10








5
10/11

1h lec
1h Lec
1h lec

Prisms: names, properties, and
applications of common prisms, definitions for technical reports
Mirror Matrices: definition of mirror matrices
Machining and measurements
Common machining methods –
limitations
Common measuring methods –
limitations

LN7
Y8.12
LN8
LN9
Videos of mechanical processing techniques

Determine elliptical beam
footprint onto a tilted plane (like a mirror);
Tunnel diagrams
Calculate mirror matrix for set
of reflections
Determine mirror matrix from
inspection
Apply mirror matrices to
determine effects of prism rotations
Calculate effects of Abbe offset


1h lec

Tolerancing Optical Systems
Systems engineering approach to
tolerancing
Tolerancing and ray tracing

LN10;
CV4 & 5
Tolerance analysis of simple optical system using ray
trace program
HW4 Due on 11/18

Build tolerance table, adjust for
performance
Define compensator for
tolerancing
Use rules of thumb for initial
mechanical tolerancing



Preparation of the report for the
midterm on design & tolerancing

Will be posted on Friday 11/14







6
10/18

2h

Tolerancing of Optical components
Relationship between optical
element specifications and system performance
Lens centration,
wedge what it means and how it relates to manufacturing

LN11;
CV6 & 8
Tolerance analysis of a optical component in relation
to system performance using ray trace program

Specify lens wedge
Specify optical surfaces
Specify optical glass
Specify scratch/dig for surfaces
Apply rules of thumb for setting requirements


2h ws

Midterm report /discussion
Discussion and review of the tolerancing

Report on tolerancing a simple optical design project

Presenting a quality professional report on
tolerancing.






6
10/25

2h lec

Technical drawings
Understand the use of datum
surfaces, used for reference

LN12
Midterm report due

Create threeview orthographic
projections
Use center lines, leaders,
callouts,
Correctly specify dimensions and
tolerances on drawings
sketch isometric layout for simple solids


Reading

Optomechanical drawing standards
ANSI Y14.5 convention
GD&T conventions
ISO 10110

ISO 10110
HW5 PPT
PDF

Use ANSI Y14.5 convention to specify tolerances for
straightness, flatness, roundness, profile, perpendicularity,
parallelism, concentricity, position, and runout.
Specify basic dimensions and
tolerances using GD&T conventions
Know how optical components are
specified with ISO10110


1h lec

Statics
Statics
Definition of force, moment,
static equilibrium
Familiarity with methods of
joints and sections for frames and machines

LN13

Statics
Create free body diagram
Apply static equilibrium to
determine reaction forces
Determine constraint conditions
for simple cases


1h ws

Mechanical design
Creating engineering drawings

Installation and getting started with AutoCAD







7
11/8

2h lec

Kinematic constraints
Understand principles of
kinematic constraint
Understand usefulness and
limitations of semikinematics
Stress and strain
Understand normal and shear
stress and strain, Poisson effect
Definition of material properties
E, G, E_{B }, n, s_{y} , s_{PEL} s_{ULT}

LN14
Y23
LN15
Y7.47
Y413
HW6
HW6 PPT
In order to stay on the schedule please start working
on HW6 so it will be ready by Nov. 10.

Kinematic Constraints
S Define kinematic and
semikinematic interfaces
S Calculate stiffness and stress
for point contacts
Stress and Strain
Calculate elongation due to
normal loads
Determine effective stiffness for
combination of series – parallel load paths
Use bulk
modulus to determine stiffness of constrained layer


1h ws

Intro to mechanical design software

Final project design meeting and planning:
Design of a simple mount for the lens/imager system
designed in part 1 of the project based on the operation conditions
stated in the project proposal.



1h

Student presentations

2 of the groups will present their midterm project
design. Instructor will choose two of the best reports to be presented so
other groups can take advantage of their experience.







8
11/10

1h lec

Deflections under loading
Understand solid mechanics of
deformations for beams with simple loading – axial, shear, torsion,
bending

LN16
Proposal review and discussion / approval

Calculate I, J for simple
geometry, look it up for more general cases
Use tables to determine angular
and lateral deflections of beams for simple loading
Use superposition to determine
beam deflections for more general cases
Use superposition to solve
problems that have overconstraint
Apply Maxwell’s reciprocity to
simple cases
Calculate stiffness for simple
geometry, determine resonant frequency
Assess stability for Euler
buckling


1h lec

Thermal Distortions
Understand thermal expansion
Know about materials with very
low CTE

LN16
Y14.5
V pp 8195

Calculate thermal distortion for simple
cases
Apply material conductivity to
determine thermal gradient, heat flux
Apply thermal diffusivity to
determine conductive time constant
Athermalize using different materials, geometry


0.5h lec

Optical materials and athermalization
Know approximate values of all
common material constants for BK7
Familiarity with special issues
for common classes of materials,

LN17
Y3
Y15.16

Calculate change in focus due to
temperature for simple optical systems
Athermalize mechanical distances, optical systems


0.5h
lec

Mechanical Materials
Know approximate values of all
common material constants for aluminum
Familiarity with special issues
for common classes of materials
knowledge of important constants

LN18
V pp 648
Y3.4



0.5h lec

Fasteners
Definitions of metric and English
fasteners
Familiarity with types and
sources of specialty hardware

Will post later

Use tables to find dimensions and
torque settings for common fasteners
Find and procure fasteners and
specialty hardware


0.5h lec

Adhesives
Familiarity with classes of
adhesives, issues, methods

LN21
V pp 648 &121129
Y3.5

Calculate stiffness for
elastomeric adhesives
Calculate thermally induced
stress for simple bonded joints

9
11/10

1h lec

Shock and Vibration
Dynamic response for
Massspringdamper system
Definition of PSD, acceleration
spectrum

LN19
V pp 96113
Y pp 4554

Estimate performance of vibration
isolation system
Estimate shock loading for simple
case


1h lec

Flexures and adjustments
Understand 6 DoF
constraints, adjustments
Understand use of flexures to
constrain some and allow other degrees of freedoms
Use of flex pivots, blade
flexures
Use of geometry, differential
flexure for small motions.

LN22

Specify use of shims, preloaded
screws pushpull screws for adjustments
Use liquid pinning for stable
connection
Choose materials for flexures
Calculate stiffness for simple
flexures


1h lec

Stages and motion control
Understand elements of any
translation or rotation stage
Understand geometry of hexapod
for motion control

LN23
V pp 117161

Calculate effect of angle coupled
through Abbe offset
Trade off different issues and be
able to choose stages

linear stage

rotary stage

tilt stage


1h ws


Project progress check


10
11/15

1h lec

Concepts for mounting optical
elements
Understand how to define 6 DoF constraints
Understand issues for choosing
glassmetal interface

control of position and geometry, coupled with manufacturing
tolerance

limit stress due to thermal and shock loading

LN24
V: PP166311

Choose between mounting concepts:
clamping and bonding
Estimate thermal survival for
bonded joints


1h lec
1h ws

Mounting of lenses
Separate the functions of the
mount: safe constraint and dimensional precision.
Understand the techniques used to
achieve tolerances that are tighter than the machining precision
Mounting of windows
Mounting techniques for windows

Y4 & 5
Developing an alignment plan for an optomechanical
system

Design simple lens barrel for
multiple lenses
Understand difference between
mechanical and optical surfaces of a lens and how to mount them with
required accuracy
Calculate stresses for pressure windows


1h

Mirror mounts
Understand basics for controlling
mirror errors
 fully constrain the rigid
body degrees of freedom
 not over constrain and
distort the mirror
 allow thermal expansions
 avoid applying moments
Sources of error for mirror
mounts

Y8
V: pp 243311

Defining simple bonded or clamped
mount for small mirror
Estimating performance of simple
bonded or clamped mirror mount

11
11/22

1h lec

Stray light analysis
Description of stray light and scattered light.
Introduction to suppression techniques. Optical black
finishes.
Reflectance and BRDF


How to minimize the stray light,
Ability to interpret the effect of the stray light in
system performance data.


1h lec

Optomechanical Systems
Familiarity with systemlevel
design, tradeoffs
Familiarity with incorporation of
assembly and alignment plan as part of system design

Y14
Final stages of the design, reviews, generating repots



2h

Overview and wrap up. Concluding remarks.
Course evaluation

Final exam report / Final interview and presentations
in design review format

Reporting and presentation, managing a design review.

