C-Joy 100x 

Conventional zoom lenses generally have a cam groove cut right through the cam barrel, restricting the angle of rotation to 180 degrees to maintain the strength of the barrel and the precision of the groove. With high magnification zoom lenses an angle of rotation greater than 180 degrees is essential and generally results in large diameter cam pipes and large and heavy lenses.

Now there is a cam barrel developed with an internal cam groove that provides the required rotation angle while maintaining the strength of the barrel and the precision of the groove. This cam has required the development of advanced machinery for its production.

For the internal focusing system, the seven lenses of the first focus lens group are separated into groups of four and three lenses, which provides for rapid and accurate focusing on an object. As the front lens do not rotate, a polarizing filter can be used.

The internal 2x Magnifier (extender) lens provides for focal length from 1000 mm to 2000 mm which can be operated remotely. Thus an image can be instantly expanded to 2x.

Day and night applications

The focal point remains almost under visible ray or 400nm to the near infrared ray of 900nm (IR) and within the focus area of 10mm - 1000mm. Across this range readjustment of focus should not be necessary. Additionally, when using the 2x extender, lens back adjustment is not necessary as the focus point of IR light and visible light are the same at the wide end. Focusing will be required under IR light for focal lengths of 70 - 450 mm. For the ranges of 20 - 70 mm and 450 - 2000 mm focusing is not necessary.

The galvanic iris may be changed from manual to auto, or auto to manual by remote control. The manual function allows for opening and closing under specific conditions such as strong light.

The flange back of this lens can be adjusted within the range of + 1.5 mm to - 1.5 mm for camera without lens back adjustment.

Lenses and cameras are usually turned to make a connection. The C-mount can be set to allow connection by turning the C-mount only.

Multi-coated lenses which normally are designed for use with visible ray deteriorate in transmittance performance from around 700nm. These lenses are all coated with wide band coating which provides for high performance from visible 400nm to IR 1,000nm.

The lens controller has functions for zoom, focus, auto and manual switches, iris trimmer, and 2x expander switch. A speed adjustment trimmer provides for ease of operation with zooming, focusing and iris operation.

Lens Support with Linear Ball Bearing Bushings

Variator and compensator lens groups operate with the support of ball bearings bushings. They move smoothly, lightly, and precisely on a shaft. The use of such bushings is a first in the CCTV field.

Microscopes and telescopes are used to enlarge an object image, but, even with high quality microscopes, it is difficult to get a sharp image when long distance is involved. Thus while quality remains an important aspect in lens selection, the over-riding criterion is suitability of application in given situations.

For clear images over long distances, the primary concern is for lenses with the longest possible focal length. Such lenses will be needed in situations such as:

• Searching floating wreckage on the sea

• Providing an early check of approaching object

• Observing distant, difficult access situations

• Watching city from highest tower / building

• Monitoring various types of stadiums

• Observing wild animals

• Making astronomical observations

• adapting for day and night camera

The 100x is a super zoom lens, is ideally suited for the above needs, and is compact, lightweight, provides for day and night application, and is of superior optical quality.

Movie of 1000 mm / 2000 mm lens at 164 feet / 328 feet (1.85 MB)

Movie 1000 mm / 2000 mm lens at 853 feet (2.13 MB)

Movie of Infrared / Night vision 1000 mm / 2000 mm lens at 164 feet / 426 feet (4.58 MB)

Movie of various clips of 1000 mm / 2000 mm lenses and distances (3.18 MB)

(various distances are as follows, 8 miles, 18.6 miles and 176469.4 miles)

C-Joy 50x

Expensive super low dispersion glass which has been used for TV broadcast lenses is used in the frontal part of the lens to eliminate in an ideal manner the secondary aberration occurring at the telephoto side.

The system allows cam grooves to be cut by easier gradients. This will allow the cam barrel to be increased relative to that of the conventional system. An increase in precision in the direction of the optical axis has made it possible for an ideal optical performance to be achieved at a value almost identical with that of the design.

With a decrease of load to the zooming and focusing motors, the overall durability has significantly been enhanced.

The progress in the use of 3CCD cameras is remarkable in recent years. Provided with a high resolving power, the lens will allow to fully utilize the camera's performance to obtain images in bright colors with high resolution.

The camera employs an extender system which has been used by TV broadcast zoom lenses in contrast to conventional extenders attached to the rear end of a lens. This extender incorporated into its optical system itself from the designing stage to ensure that an optical extender most appropriate for the lens should be developed.

Moreover, use of a motorized system for moving of the extender has allowed it to be remotely controlled.

These cameras have solved the problem of a deterioration of the center performance around halfway of the zooming range with compensator.

The deterioration is a characteristic commonly observed in telescopic lenses with a high magnifying power. As a  result of this advanced optical technology, the compensator prevents the deterioration from occurring and achieves a high resolution over the entire zooming range.

Movie of night and day side by side comparison using a 50x Lens with IR light (2.45 MB)

(distances are 393 ft, 820 ft, 1148 ft, 1968 ft)

C-Joy 30x

At 11.8 inches focal length, chromatic aberration, through .00001 inches to .00003 inches, is small enough for 24 hour high class surveillance by day and night camera.

The smaller size of the Raymax 30x zoom lens provides:

• a simple control system

• cost reductions

• 24 hour surveillance without a watchman

• high resolution, high contrast

• long distance 24 hour surveillance

Type 1 lens: Generally, zoom lenses have a focusing problem, specifically with the short focal length, especially where there is a difference between visible ray and near infrared ray back focal length. Type 1 lenses counter this difference by a series of original, optical calculations. On the other hand, for long focal length positions the back focal length may be adjusted by focusing, both for visible ray and infrared ray.

This type of lens is therefore suitable for day and night conditions. However, during zooming there will be some unavoidable defocusing which must be corrected by applying a mechanical compensation method (CAM). CAM has to be created for either visible ray or near infrared ray.

Type 2 lens: This lens was developed to overcome the difficulties of the type 1 zoom lens. The back focal length of the long focal length is virtually the same for both visible ray and near infrared ray operation. This eliminiates the need for refocusing. Moreover, with this lens there will be no defocusing (image shift) during zooming including that of night operation under IR illumination.

C-JOY 18X

The advanced optical design of the 18x infrared corrected zoom lens, offers perfect correction of color aberration. To achieve this, a special infrared multicoated optical glass was designed. This affects a wide range, from the visible light to the near infrared, something almost impossible to achieve with conventional methods. This camera gives you a clear, in-focus picture at all times, 24 hours a day.

Recent technological progress in CCTV cameras produces a day/night or high sensitivity HAD Cameras. This makes it possible to offer daytime monitoring in color and night time monitoring in black and white. It also allows monitoring in total darkness when using infrared illumination. But conventional CCTV lenses cannot focus completely in the infrared area, this results in a delay of the advance of camera technology.

That's why the 18x was developed, a CCTV lens perfect to work with day/'night or high sensitivity HAD cameras. Using a surveillance system that combines the zoom lens with day/night cameras eliminates the need to re-adjust the focus position. Once focused, the image will remain perfectly sharp.

Since conventional CCTV lenses are being designed for the visible spectrum, once used in the (near) infrared. This will produce an out of focus and blurry image, even after re-adjusting the lens. The 18x has extremely fine resolution in near infrared because there is no offset of focus position from visible light to near infrared. It provides a clear image because there is no drop in its recognition ability.

Brightness in a lens is indicated by the F number. Another factor affecting brightness in addition to the F number is the transmission factor. The transmission factor is important because of the large number of separate lenses put together to create the compound lens that is a zoom lens. Special coating technology is necessary for increasing the transmission factor in the broad light band from visible to near infrared.

The 18x CCTV zoom lens for use in high performance infrared was created by taking advantage of a large number of advanced design and production technologies. This lens is a major advance in the security field.

Model Number: Y18Z86RAF

Mount: C Mount

Zoom Ratio: 18x

Focal Length:  .33 inches-6 inches

Iris Range: F2.5-360

Angle of View: 1/2"- 40.8-2.4 degrees

                        1/3"- 31.2-1.8 degrees

Focus Range: 6.5 feet

Object Dimensions at M.O.D.: 1/2" 4.8 feet-3.2 inches

                                                1/3" 4.5 inches-2.4 inches

Filter Thread- M 2.4 inches X 0.02 inches

Dimension (H X V X L): 2.97 inches X 2.5 inches X 6 inches

Weight: 1.9 pounds

C-Joy 10x

The advanced optical design of the 10x infrared corrected zoom lens, offers perfect correction of color aberration. To achieve this, a special infrared multicoated optical glass was designed. This affects a wide range, from the visible light to the near infrared, something almost impossible to achieve with conventional methods. This camera gives you a clear, in-focus picture at all times, 24 hours a day.

Recent technological progress in CCTV cameras produces a day/night or high sensitivity HAD Cameras. This makes it possible to offer daytime monitoring in color and night time monitoring in black and white. It also allows monitoring in total darkness when using infrared illumination. But conventional CCTV lenses cannot focus completely in the infrared area, this results in a delay of the advance of camera technology.

That's why the 10x was developed, a CCTV lens perfect to work with day/'night or high sensitivity HAD cameras. Using a surveillance system that combines the zoom lens with day/night cameras eliminates the need to re-adjust the focus position. Once focused, the image will remain perfectly sharp.

Since conventional CCTV lenses are being designed for the visible spectrum, once used in the (near) infrared. This will produce an out of focus and blurry image, even after re-adjusting the lens. The 10x has extremely fine resolution in near infrared because there is no offset of focus position from visible light to near infrared. It provides a clear image because there is no drop in its recognition ability.

Brightness in a lens is indicated by the F number. Another factor affecting brightness in addition to the F number is the transmission factor. The transmission factor is important because of the large number of separate lenses put together to create the compound lens that is a zoom lens. Special coating technology is necessary for increasing the transmission factor in the broad light band from visible to near infrared.

The 10x CCTV zoom lens for use in high performance infrared was created by taking advantage of a large number of advanced design and production technologies. This lens is a major advance in the security field.

Model Number: Y10Z85RAF

Mount: C Mount

Zoom Ratio: 10x

Focal Length:  .33 inches-1.1 feet

Iris Range: F1.5-360

Angle of View: 1/2"- 41.3-4.3 Degrees

                        1/3"-31.5-3.2 Degrees

Focus Range: 1.6 yards

Object Dimensions at M.O.D.: 1/2" 3.7 feet-4.4 inches

                                                1/3" 2.7 feet-3.3 inches

Filter Thread- M62 X 0.02 inches

Dimension (H X V X L): 2.9 inches X 2.5 inches X 5.3 inches

Weight: 1.81 pounds