Catadioptric Lenses

The C2504007VNS Catadioptric lens was developed for a prominent client in Europe. The lens is ruggedized, a-thermal design and has an excellent image across the entire field and operates in the Vis, NIR 7 SWIR spectral ranges.

The low f/number provides a bright and crisp image with little vignetting.

Effective baffling provides excellent stray light rejection, good contrast and a high MTF at low spatial frequencies.
The lens has a standard c-mount.

The design is exceptionally compact with the total distance from the front of the lens to image plane being less than 115mm and outside diameter of 80mm.

The image diameter of 14mm gives a field diameter 3.2 °.
A 2/3’’ CCD provides a horizontal field angle of 2.0°.

With a 5μm pixel sensor, at the Nyquist frequency of 100cy/mm, the lens achieves >35% modulation on-axis and 30% on the edge of the field. The M80x1 thread on the lens barrel provides extremely solid mounting of the lens in a flange, thereby isolating all such stresses from the optical components.

The C2505005VN Catadioptric lens was developed for use as a Gunner and Commander sight in a well-known South-African tank for missile guidance.

The lens is ruggedized, a-thermal design and has an excellent image across the entire field. It operates in both the Visual and NIR spectral ranges, but this can be extended to the SWIR range.

Effective baffling provides excellent stray light rejection, good contrast and a high MTF at low spatial frequencies.
The lens has a standard C-Mount.

The total distance from the front of the lens to image plane is less than 110mm while the total diameter of 62mm ensures a very compact and sturdy design.

This specific lens is fitted with 2x mounting rings which electrically isolates the camera assembly from the frame. The horizontal field angle is 2.0° with a 2/3 ‘’ CCD.

With a 5μm pixel sensor, at the Nyquist frequency of 100cy/mm, the lens achieves 30% modulation on-axis and 25% on the edge of the field.

The C3504006VNS Catadioptric lens was developed for a prominent client in Europe.The lens is ruggedized, a-thermal design and has an excellent image, being diffraction limited across the entire field and three spectral ranges.

The low f/number provides a bright and crisp image with little vignetting.

Effective baffling provides excellent stray light rejection, good contrast and a high MTF at low spatial frequencies.
The lens has a standard c-mount.

The design is compact with the total distance from the front of the lens to image plane being 210mm, and the outside diameter is 108 mm.
The image diameter of 12mm gives a field diameter 2degrees. A 2 /3” CCD provides a horizontal field angle of 1.4°.

With a 5μm pixel sensor, at the Nyquist frequency of 100cy/mm, the lens achieves 30% modulation on-axis and 27% on the edge of the field.

The M108x1 thread on the lens barrel provides extremely solid mounting of the lens in a flange, thereby isolating all such stresses from the optical components.

The C5506007VNS Catadioptric lens was developed for a prominent client in Europe.
The lens is ruggedized, a-thermal design and has an excellent image across the entire field and operates in the Visual, NIR and SWIR spectral ranges.
The lens has a standard c-mount.
The total distance from the front of the lens to image plane is less than 213mm while the total diameter of 109mm reveals and elegant design.
The 14mm image diameter provides a diagonal field angle of 1.5°, and 2 /3’’ CCD covers a horizontal field angle of 0.9°.
With a 5μm pixel sensor, at the Nyquist frequency of 100cy/mm, the lens achieves 25% modulation on-axis and the 20% on the edge of the field.

The length can be shortened to about 150mm if the image height can be reduced to 12mm instead of the present 28 mm diameter.
The new Field diameter will be 2.4°.

The C3506104VN Catadioptric lens was developed for helicopter mounted stabilized platforms.
The lens is ruggedized, a-thermal design and has an excellent image across the entire field and operates in the Visual and NIR spectral ranges. Depending on AR coating, SWIR can be included as well.
The lens has a standard c-mount and weighs 680g.
The total distance from the front of the lens to image plane is 125mm and outside diameter is 67mm. The lens is fitted with a flange on the barrel for solid three-point-mounting. The diameter of this flange is 86 mm and isolates any stresses from the optical components.
The image diameter of 8mm gives a field angle of 1.6°.
A 1/2’’ CCD provides a horizontal field angle of 1.05°.
With a 5μm pixel sensor, at the Nyquist frequency of 100cy/mm, the lens achieves >30% modulation on-axis and 25% on the edge of the field.