Laser manufacturers use the focus lens in order to adjust the size of the laser so it can travel from the laser head, to the fiberoptic, the handpiece and finally reach the patientâ??s skin. It is very important that the focus lens are spotlessly clean, free of dust and scratches. Dust and scratches on their surface will cause the laser to burn them gradually, prevent full laser emission, and can misdirect part of the laser, which can cause other components to be burned. We strongly recommend keeping the focus lens in good condition. Additionally, keep your work area spotlessly clean in order to avoid dust particles which can be detrimental to aesthetic laser equipment.
These are premium and quality custom made focus lenses that are made exactly by the manufacturers requirements. These focus lenses have been applied with AR coating to achieve optimum durability and transmitting of the laser beam. This will create better treatment results and allow your machine to be more time efficient.
Micro Spherical Lenses
Under the condition of high refractive index, some optical components can achieve short focal length. Therefore, the micro lens becomes an ideal choice in the field of high precision applications.
Through years of accumulated processing know-how technologies and production capacity, high standard thin film coating performance and strict testing requirements, Photonchina provides customers with one of the world's smallest but excellent micro lenses products, which have been widely used in various medical devices (endoscope lens, for example), precision surveying and optical communications instruments.
From design, manufacturing to optical coating, from endoscope lens, capsule lens to special-required rod lens, from single mini lens to glued lenses system, engineers in Photonchina implement strict production process to ensure stable quality, competitive price as well as responsive lead time.
A variety of optical glass or other materials, such as BK7, N-SF11, H-LAF76, Fused Silica and so on are available for customers design. H-LaF53, for instance, has often been used in endoscope lens or capsule lens production. We have a wide range of lenses in shape: convex, concave, biconvex, meniscus etc.
Material : N-SF11H-LaF53H-LaF76
Fused Silicon etc.
Radius of Curvaturemm R0.25R
Diametermm 0.5 5 Tolerancemm 0.005 0.05
Lengthmm L0.5 L30 Tolerancemm 0.020.06
Thickness tolerancemm 0.01 0.1 Surface Quality 10/580/50
Flaness /20/4 Off centering 110
Optical coating : Upon request
Photonchina produces the smallest rod lenses for customers at home and abroad.
Micro rod lenses: 0.5-1.8mm diameter, 1.0-25mm length, with one end of designated curvature radius and another end of arbitrary angle.
Both ends of arbitrary radii or angle are also available. Highly customized products for a wide range of applications from medical device, fiber communications, optical display and surveying equipment.
What is more, we can provide unique rod-shaped glued lenses by combining special gluing/cementing technics and edging skill. These glued/cemented rod lenses subassembly can be made of up to four single micro rod lenses with various combination. Rod lens assembly systems are able to provide images with greater brightness, contrast and color reproduction than conventional lenses.
Rigid endoscope, for instance, which usually has a series of high-resolution optical glass rod lenses, can be forward viewing (0 degrees) or angled (10120 degrees) to allow visualization out of the axis of the telescope and increase the FOV by rotating the instrument. The optical quality of lens-generated images of rigid endoscopes still surpasses that of the fiber-optic or digital images produced by flexible scopes.
High performance optical coatings for rod lenses are provided.
Optical glass material NBK7, N-SF11 from Schott, Corning 7980 etc, are all available.
Material : N-SF11H-LaF53H-LaF76
Fused Silicon etc.
Radius of Curvaturemm R0.25R
Diametermm 0.5 5 Tolerancemm 0.005 0.05
Lengthmm L0.5 L30 Tolerancemm 0.020.06
Thickness tolerancemm 0.01 0.1 Surface Quality 10/580/50
Flaness /20/4 Off centering 110
Optical coating : Upon request
whose base plate material is PMMA, also known as pressure afterburner lenses, sub-afterburner lenses, in fact, refers to the general term of PMMA sheet after electroplating, using plastic lenses instead of glass lenses, has the advantages of light weight, not easy to break, easy shaping and processing, easy coloring, etc., the momentum of development is increasing, and has become a kind of technology in lens production. Plastic sheets can generally be made into: single-sided mirror, double-sided mirror, taped mirror, paper mirror, semi-lens, etc. can be done according to different requirements. For example, mobile phones and TV screens are visible everyday.
Because acrylic is difficult to produce and its cost is high, there are many substitutes of high quality and low price in the market. These substitutes, also known as acrylic, are actually ordinary organic or composite boards (also known as sandwich boards). Ordinary organic board is cast with ordinary organic glass cracking material and pigment. Its surface hardness is low, and it is easy to fade. After polishing with fine sand, the polishing effect is poor. The composite board has only a very thin acrylic surface and ABS plastics in the middle. It is easy to delaminate due to thermal expansion and contraction in use. The true and false acrylic can be identified from the slight chromatic aberration and polishing effect of the plate section.
1. Architectural Applications: Shop Window, Soundproof Doors and Windows, Lighting Hood, Telephone Booth, Decorative Color Mirror, etc.
2. Advertising applications: light boxes, signboards, signboards, exhibition shelves, etc. 3. Traffic applications: train, car backup mirror, car lens, etc.
4. Medical applications: baby care box, various surgical medical appliances and civilian articles: handicraft, cosmetic mirror, bracket, aquarium, toy mirror, etc.
5. Industrial applications: instrument surface plate and cover, etc.
6. Lighting applications: fluorescent lamp, Pendant lamp, Street lampshade LED reflector, acrylic reflector, etc.
If you need proofing, please give specific size specifications drawings.
Optical Lens Assemblies
Optical AssembliesÂ
PARAMETER:
The F15-300mm zoom lens is mainly used in visible light band to detect specific targets or regions and transmit TV images and focal length information in real time.
The f15-300mm zoom lens is mainly used in visible light band to detect specific targets or regions and transmit TV images and focal length information in real time.
1. Applied environmentÂ
  Â
Teperature
() Visibility
Km Relative humidity
(%)
Visible light imaging 25 15 80
Enhance to penetrate the fog
25 1-8 80%
2. Main performace
2.1 Sensor:Â Digital 1/1.8 "color CCD.
2.2Â Illumination adjustment range:Â 10~1104lx).
2.3 The smallest view: 1.7°.
2.4Â Optical magnification ratio: 20X, consecutive magnification.
2.5Â Imaging range:Â 20m~.
2.6 Frame frequency:Â 50Hz.
The F15-300mm zoom system is composed of visible light zoom lens, control circuit board and power supply circuit board. The visible light zoom lens includes CCD, optical lens, diaphragm, potentiometer, micro-dc motor, CAM and other structural parts.
3 Optical lens design
3.1Â Zoom lens system is an optical system in which the focal length changes within a certain range and the image plane remains fixed. In general, the relative aperture is constant during zoom.For imaging system, continuous zoom optical system is the best way to solve the problem of large field search and small field resolution. The ratio of the two ultimate focal lengths in the zoom range, namely the ratio of the long focal length to the short focal length, is called magnification ratio, also known as multiplier. In consideration of the secondary spectrum requirements, the plan of the small relative aperture of the long focal length is adopted (that is, the relative aperture also changes during the zoom process).
3.2Â The optical system USES a continuous zoom lens with a focal length of 15mm~300mm.
No. Parameters Item Design Result
1 Zoom ratio 20x
2 Focal length f=15mm~300mm
4 Horizontal field 1.27°~24.9°
5
Visual discrimination(Design value) Short focus(Wide field of view) 200lp/mm
Long focus(Wide field of view) 180lp/mm
6
OTF Characteristic frequency 145lp/mm MTF 0.2
Achromatic lenses are normally made of BK7, fused silica and CaF2.
Special focusing systems can be designed by Photonchinaâ??s engineer team.
Sizes from smallest diameter of 3mm to biggest of over 100mm are all available.
Normal Achromatic Lens
Super Small Achromatic Lens
Super small Achromatic Lenses for your specific application provide excellent wavefront quality, super small spot size and improved modulation transfer function (MTF).
Feature
Small diameter size up to 3mm
Short focal length, such as 5mm
Strict quality control, excellent quality
AR-coating, mounts services
Micro Lens (Ultra small lens)
Because of the ultra-small size of this kind of lens (outer diameter 0.5mm-5mm, length: 1mm-20mm), micro lens or ultra-small lens often requires special processing technology, unique production know-how and special optical fixture, etc.
Photonchina provides various sizes of micro lens with an array of applications including active devices, wavelength division multiplexer ( WDM) and fiber lasers (see C-lens, G-lens) in fiber communications, endoscopy for medical and industrial use, capsule endoscope, etc. Its new application fields are still expanding.
A variety of optical glass or other materials, such as N-SF11, H-LAF76, Fused Silica and so on are available for customerâ??s design. H-LaF53, for instance, has often been used in endoscope lens or capsule lens production. The outer diameter of micro lens covers 0.5mm to 5.0mm with any radius of curvature that can be made. We have a wide range of lenses in shape: convex, concave, biconvex, meniscus etc.
Photonchina can provide unique rod-shaped glued lens by combining special gluing technics and edging skill. This rod lens has excellent eccentricity and clear aperture index. From design, manufacturing to optical coating, from endoscope lens, capsule lens to special-required rod lens, engineers in Photonchina implement strict production process to ensure stable quality, good yield, competitive price as well as responsive lead time.
Product Name:Realkoko Tri Color Contact Lenses Manufacturer New Three Tone 14 mm Contact Lens Green Ringlight Contact Lenses
Material:HEMA, MMA, NVP, AIBN and colorant
Power Range:From 0.00D to -6.00D, each step 0.25D;above -6.00D, each step 0.50D
Water Content:40 %
Base Curve (mm):8.40mm ~ 8.60mm
Diameter (mm):14.00mm ~ 14.50mm
Center Thickness:0.06mm ~ 0.12mm
Disposal Period:within one year.
Expiry Date:5 years
Package:PP blister package
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