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Cláudia Deccó, José Santos-Victor, José Gaspar, Niall Winters Instituto Superior Técnico Lisbon, Portugal {ccgdecco,jasv,jag,niall}@isr.ist.utl.pt Omniviews Review Meeting IST, Lisbon, September, 2001 MIRROR DESIGN: Principles and Tools Vertical and Horizontal Resolution Mirrors

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mirror design principles and tools
Cláudia Deccó, José Santos-Victor, José Gaspar, Niall Winters

Instituto Superior Técnico

Lisbon, Portugal

{ccgdecco,jasv,jag,niall}@isr.ist.utl.pt

Omniviews Review Meeting

IST, Lisbon,

September, 2001

MIRROR DESIGN:Principles and Tools
mixed mirror
MIXED MIRROR
  • Conventional Camera
  • Log Polar Camera
mixed mirror design
Mixed Mirror Design

Blind zone

Benefit: Enhanced Resolution for more complex environments

slide7

DIFFERENT METHODOS OF DERIVATIONS

(dh/d)t/dh/d) n for distances = [100 200 300 400] (cm)

Analytic derivation

Diff

Centered derivation

slide8

MIXED MIRROR PROTOTYPE

  • Ultra Precision Lathe
  • Rank Pneumo
  • Model ASG-2500 (Aspheric Surface Generator)
  • Repeatibility de 10nm
  • Precision de 5nm
  • 50kg of maximum load on the plaque
  • Position control made by an interferometer of HeNe HP
  • Controler: AB 8200
slide9

MIXED MIRROR

  • Specs

Radius : 3cm

Fovea field of view : 28-52 degrees

Retina field of view : 80-115 degrees

f : 25mm

height: 70cm

distance (d): 200cm

slide10

Astigmatism

Field Curvature

In: E. Hecht, “Optics”, Addison-Wesley

slide11

CONCLUSIONS

  • General principles of mirror designs
  • Specifications matching the various applications
  • Mixed mirror and flexible design tools
  • Mirro realization