Catadioptric Lenses

Overview

Most of the lenses in this range provide a diffraction limited performance over the total field of view and spectral range for which they are designed. The images are large (>10mm diameter) and because the performance is diffraction limit, they can be used with any CCD to a maximum of 2/3”.

These lenses have been ruggedised and a-thermalised to maintain performance specification over a temperature range of at least -20°C to 60°C.

Special care is taken in the mechanical design to provide effective baffling, thereby minimising glint and the “white-washing” of images when bright sources such as the sun illuminate the front of the lens.

Every lens is tested and the measured MTF graph is supplied with the lens. Note that due to manufacturing tolerances the actual MTF performance is typically 5 to 10% lower than the design graph.

NOTE: CHROMAR Technology preserves the right to change any design or specification in order to improve a product or to more closely reflect actual performance, however, all effort will be made to maintain form and fit while improving function and performance.

List of Chromar Catadioptric Lenses

EFL	f/#	ImgHt(semi)	Spectral Ranges	Notes
100	1.5	5	NIR SWIR MWIR	Designed only
100	1.5	5	VIS NIR SWIR	Designed only
100	2	5	VIS NIR SWIR	Designed only
100	5	4	UV VIS NIR SWIR	Designed only
150	4	7	VIS NIR SWIR	Designed only
170	4.3	8	VIS NIR SWIR	Built for space applications
183	3.2	5	MWIR LWIR	Designed only
200	5	5	VIS NIR SWIR	Designed only
200	6	5	VIS NIR SWIR	Designed only
200	8	2	VIS NIR	Designed only
250	4	5	VIS NIR SWIR	Built two demo models
250	4	5	VIS NIR SWIR MWIR	Designed only
250	5	5	VIS NIR SWIR	Built several hundred
250	7	5	VIS NIR SWIR	Designed only
270	7	3	VIS NIR	Built
285	3.4	14	VIS NIR SWIR	Built for space applications, very compact, large 28 mm image diameter.
300	4	5	VIS NIR SWIR	Designed only
300	7	5	VIS NIR SWIR	Designed only
310	6	4	VIS NIR	Built
320	4	10	VIS NIR SWIR MWIR	Designed only
345	4.2	14	VIS NIR SWIR	Designed only
350	4	6.4	VIS NIR SWIR	Built
350	6.4	4	VIS NIR SWIR	Built
500	4	11	VIS NIR SWIR MWIR	Designed only
550	6	6	VIS NIR SWIR	Built, 14 mm image diameter
550	4	11	VIS NIR SWIR	Designed for space application
600	6	18	VIS NIR SWIR	Designed for space application
640	4.4	11	VIS NIR SWIR	Designed for space application
800	5	17	VIS NIR SWIR	Designed for space application
800	7	17	VIS NIR SWIR	Designed for space application
860	6	16	VIS NIR SWIR	Designed for space application