Custom Optical Units

Multi-Magnification Optical Units

Two (or more) different magnifications in one optical system.
Suitable for rough positioning of object by low magnification, and precise positioning by high magnification.
Multi-Magnification Optical Units

Example: Dual view optical units
Used for applications such as flip-chip bonding machines.
Enables measurement of the bonding position from upper view and lower view at once with a high degree of accuracy.

Example: Dual view optical units

fθ Lenses

Used for applications such as constant velocity scanning of laser beams with polygon mirrors. When the rotational scanning converts into the linear scanning, it is expressed by the relation "y=f×θ", therefore it is called a f×θ=fθ(f- theta) lens.
f-theta Lens

Far Infrared (IR) Lenses

Mass-production of silicon and germanium lenses for IR lens applications is available. Far infrared lenses are used for applications such as thermal measurement lens units.
Chalcogenide glass lenses under development (lower right image)
Far-infrared lenses are used as components in thermal measurement, automotive driving safety, etc.

Possible shapes and diameter of lens
Shape Bi-convex lens, Bi-concave lens
Convex lens, Concave lens,
Meniscus lens
Diameter 5 to 180mm
Far Infrared (IR) Lenses

UV Lens Units

UV lenses enable monitoring of invisible scratches, particles, or stains on transparent or metal surfaces by using scatter characteristics of UV light.
UV lens unit (cross-section) Near-UV inspection machine
Near-UV Lenses
Magnification : 0.2X to 0.6X
Effective F-no. : 7.4 to 10.2
Image-object distance : 176.1 to 105.1mm
Working distance : 132.0 to 51.3mm
TV distortion : 0.1% or less
Monitor resolution power : 1000 TV lines or over
Depth of field : ±7mm(0.2X) to ±1mm(0.6X)
Wave length : 320 to 420nm
(365nm <BASIC>)
Image field size (max) : 1/2 inches
Mount type : C-mount
Dimensions : φ36 x 26.6mm (0.2x) to
36.3mm (0.6x)