Constant Focus Lens

Constant Focus Lens

Specific day camera systems developed by Vision Technologies for military applications evolved from an adaptation of our patented Constant Focus Lens™ optical technology. The heart of this technology is the ability to provide simultaneous focus from 1/4" to infinity (provides constant depth of field) with 0.005% to 2.0% edge distortion (dependant on lens type and Field of View (FOV)). The lack of edge distortion provided by the Constant Focus Lens™ gives a more accurate representation of target size and dimension, significantly enhancing the optical clarity of any day camera used in combination with this lens. This is invaluable in enabling an operator to acquire a clear, in focus image upon target detection.

 

1/3" 68 Degree CCD Constant Focus™ Lens

Lens Type:   Compact miniature objective lens
Angular Field of View:   68 degrees
Depth of Field:   25mm-infinity
Max. Distortion:   Less than 1/2 of 1%
F#:   11
Iris:   fixed
Dimensions:   9mm OD. x 7mm Lg.
Part No.:   LEN-1006-00

1/3" 40 Degree CCD Constant Focus™ Lens

Lens Type:   Compact miniature objective lens
Angular Field of View:   40 degrees
Depth of Field:   Changes with F-stop
Max. Distortion:   Less than 1/2 of 1%
F#:   2.8, 4, 5.6, 8, 11
Iris:   fixed
Dimensions:   9mm OD. x 7.4mm Lg.
Part No.:   LEN-4506-4510-00

1/3" CCD 4x Constant Focus™ Lens

Lens Type:   Compact miniature objective lens
Angular Field of View:   15.5 degrees
Depth of Field:   Changes with F-stop
Max. Distortion:   Less than 1/2 of 1%
F#:   2.8, 4, 5.6, 8, 11
Iris:   fixed
Dimensions:   9mm OD. x 14.3mm Lg.
Part No.:   LEN-2405-00

1/2" CCD 4x Constant Focus™ Lens

Lens Type:   Compact miniature objective lens
Angular Field of View:   15.5 degrees
Depth of Field:   Changes with F-stop
Max. Distortion:   Less than 1/2 of 1%
F#:   2.8, 4, 5.6, 8, 11
Iris:   fixed
Dimensions:   14mm OD. x 16.6mm Lg.
Part No.:   LEN-2305-00

1/3" 40 Degree (Horizontal) Constant Focus™ Lens

Lens Type:   Compact miniature Objective Lens
Angular field of View:   40 degrees
Depth of field:   1 meter - Infinity
Max. Distortion:   2% on Average
F#:   1.8
Iris:   Fixed
Dimensions:   12mm OD x 19mm lg.

1/2" CCD 100mm Folded Lens

Angular Field of View:   4 degrees
F#:   4
Iris:   fixed
Dimensions:   55mm OD. x 55mm Lg.
Part No.:   LEN-5005-00

 

 

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