- Welcome to TopFreeBiz.com:
- Join Now |
- Sign In |
- Contact Us
Hot Products
conversion lenses for digital camera
We supply camera lenses,OEM.Our camera lenses include wide angle lens,fisheye lens,telephoto lens,custom lens,projector lens,OEM,adapter ring,adapter tube etc..All camera lenses are fit for Canon,Nikon,Olympus,JVC,Kadak,Fuji,Casio and so on.Beside,we supply OEM service ...
Beamsplitters
Beamsplitter Cube is a more sophisticated type consisting of two right- angle prisms cemented together at their hypotenuse faces. The cemented face of one prism is coated. Before cementing, with a metallic or dielectric layer having the desired reflecting properties, both i...
projector lens
All conversion lenses are fit for Canon,Nikon,Olympus,JVC,Kadak,Fuji,Casio and so on.Beside,we supply OEM service.
Adapter Rings
" Adapter ring is used between camera(or projector) and lenses,it could mount kinds of conversion lenses,such as telephot lens,wide angle lens,fisheye lens,and so on.Adapter rings are labeled from the camera to the filter. For example, a 25.5mm to 46mm step up ring is used ...
fisheye lens
Fisheye lens distorts straight lines into ridiculous curves. Straight lines, depending on where they are in the photo can be pulled a lot, a little, or not at all. The farther they are from the the center line of the photo, the more distortion there is. The closer the line ...
Telephoto Lens
25mm,27mm,28mm,30mm,30.5mm,34mm,37mm,43mm,46mm,49mm,52mm,55mm,58mm,62mm,72mm 2.0X telephoto lens; 37mm 2.5X and 3.0X telephoto lens; 52mm 3.0X telephoto lens;
Powell Lenses
Powell lenses is used to generate straight line. With aspherical curvature on its apex, the output line from powell lenses is even distribution of energy. For comparision, Cylindrical lenses generate gaussian beam profiles with hot-spot centre points and fading edges. The u...
ball
General Specifications Material N-BK7 Diameter tolerance ±0.1mm Surface quality 80-50 S/D Cylindricity minimum 1μm Surface flatness λ/2@632.8nm Clear aperture >90%
Convex-Concave Lenses
Specifications Material: N-BK7 Diameter tolerance: +/-0.1mm Design wavelength: 546.1nm Focal tolerance: +/-2% surface quality : 60-40 S/D Centration: 3 arcmin Surtace flatness: λ/4 @633nm Clear aperture: 90% Bevel: Protective bevel
Cemented Prisms
Material:BK7 or UV grade fused silica Dimension Tolerances:+/-0.1mm Clear Aperture >80% Surface Quality:60/40 Scratch/DigSurface Flatness:lambda/4 at 633nm Angle Tolerance:60 degree+/-3 minutes Chamfer:0.3mm+/-0.1mm Coatings Optional
Cubic prism
Material BK7 Grade A optical glass Dimension Tolerance +/-0.2mm Beam Deviation Up to 30 arc seconds Angle Tolerance Up to 5 arc seconds Flatness Up to 4 @633nm Surface Quality 60/40 scratch and dig Chamfer 0.3mm+/-0.1mm Coating AR coating available
Dispersing Prism
*Material BK7 or UV grade fused silica *Dimension Tolerances +/-0.1mm *Clear Aperture >80% *Surface Quality:60/40 Scratch/Dig*Surface Flatness lambda/4 at 633nm *Angle Tolerance 60 degree+/-3 minutes *Chamfer 0.3mm+/-0.1mm *Coatings Optional
Penta Prisms
Material:BK7 glass or UV grade fused silicaDimension Tolerances:+/-0.1mmAngle Tolerance:+/-3 minutes Clear Aperture:>90% Surface Quality:20/10 Scratch/DigSurface Flatness:lambda/4 Chamfer:0.3+/-0.1mmCoating:Optional
Right Angle prisms
Rectangular prisms are used to deflect a beam of light through 90 or 180 degrees. This can be used as component to create various optical devices. BK-7 can be used for a range between the visible and infrared light. fused-silica an be used for a range between ultraviolet an...
subminiature prisms
Material:BK7 glass or UV grade fused silicaDimension Tolerances:+/-0.1mmAngle Tolerance:+/-3 minutes Clear Aperture:>90% Surface Quality:20/10 Scratch/DigSurface Flatness:lambda/4 Chamfer:0.3+/-0.1mmCoating:Optional
Wedge Prisms
"Wedge prism is an optical element having plane-inclined surfaces, usually the faces are inclined toward one another at very small angles. Wedges divert light toward their thicker portions.Wedge prism is commonly used in laser system for eliminating the reflections from the...
mirrors (round or square)
"Flat mirror,concave mirror,convex mirror,hot mirror,cold mirror,laser mirror,dielectric mirror,metal coated HR mirror,hyperbolical mirror etc.. Specifications of our mirror as follow: *Material:BK7 A glass, Quartz, CaF2,crystals or others*Parallelism: r in*Clea penture:90%...
Aspherical lens
Material:BK7 or other optical materialSize:10mm-200mmFringes:lambda/2Center Thickness:15nm-25nmDispersion round:0.03mm-0.2mmCentration:3 arc minSurface Quality:60-40 Scratch/DigClear Aperture:90%Coating:Available upon Request Place of Origin:Jilin in ChinaModel No:1Bran...
Little Spherical lens
Material:BK7 or other materialsFocal length:+/-1%Length tolerance:+0.0 - -0.1mmWidth tolerance:+0.0 - -0.1mmCenter thickness tolerance:+/-0.1mmSurface Figure:lambda/2 at 633nm on plano sideSurface quality:60-40 stratch/digClear Apenture:>90%Chamfer:0.25mm at 45 degree typic...
Meniscus lens
Meniscus Lens can increase the NA of the system while only adding slightly to the total spherical aberrations. The Negative Meniscus Lens is used to increase the focal length of another lens while maintaining the angular resolution of the optical assembly. This lens shape i...
Bi-convex lens
Double-Convex Lens, also named Bi-Convex Lens, is most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object (conjugate ratio) distances is between 0.2 to 5. It is used in beam expanders,. Projection optics systems, opti...
plano concave lens
"*Material:BK r other materials*Foca ength:+/-1%*Lengt olerance:+0.0 ~ -0.1mm*Widt olerance:+0.0 ~ -0.1mm*Cente hicknes olerance:+/-0.1mm*Surfac igure:lambda/2 at 633nm on plano side*Surfac uality:60-4 tratch/dig*Clea penture>90%*Chamfer:0.25mm at 45 degrees typical*Coating...
Plano convex
"Specification of our plano-convex spherical lenses as follow:*Material:Bk r other materials*Foca ength:+/-1%*Lengt olerance:+0.0 ~ -0.1mm*Widt olerance:+0.0 ~ -0.1mm*Cente hicknes olerance:+/-0.1mm*Surfac igure:lambda/2 at 633nm on plano side*Surfac uality:60-4 tratch/dig*...
Plano-Concave Lenses (UV Fused Silica)
"Specifications Material: UV Fused Silica Diameter tolerance: +/-0.1mm Design wavelength: 546.1nm Focal tolerance: +/-2% surface quality : 60-40 S/D Centration: 3 arcmin Surtace flatness: λ/4 @633nm Clear aperture: 90% Bevel: Protective bevel " Place of Origin:Jilin in ...
Plano-Convex Lenses (UV Fused Silica)
"Specifications Material: UV Fused Silica Diameter tolerance: +/-0.1mm Design wavelength: 546.1nm Focal tolerance: +/-2% surface quality : 60-40 S/D Centration: 3 arcmin Surtace flatness: λ/4 @633nm Clear aperture: 90% Bevel: Protective bevel " Place of Origin:Jilin in ...
Double-Concave Cylindrical lens
SpecificationsMaterial:BK7or other optical materialsDimension Tolerance:+0.0~-0.1mmCenter Thickness:+/-0.2mmSurface Quality:60/40 Scratch/DigSurface Figure:lambda/2Clear Aperture:>90%Parallelism:Chamfer:0.25mm at 45 degrees typicalCoating:Optional Place of Origin:Jilin ...
long cylindrical lens
SpecificationsMaterial:BK7or other optical materialsDimension Tolerance:+0.0~-0.1mmCenter Thickness:+/-0.2mmSurface Quality:60/40 Scratch/DigSurface Figure:lambda/2Clear Aperture:>90%Parallelism:Chamfer:0.25mm at 45 degrees typicalCoating:Optional Place of Origin:Jilin ...
achromatic lens
"Achromatic Lens is an achromatic consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. Specification of our achromatic lens as follow:*Material:BK7 and ZF2(or according to your request)*Dia.:+0/-0.05*Center th...
Colour Optical Filters
Product Name:Colour Optical FiltersOptical Filter is used to change the strength of the incident light; color temperature chip is used to correct color temperature, it is difficult to transform color temperature of different light sources for the cameras required 3200K, so ...
Optical glasses lens
TopWell Hardware Industrial Co., Ltd is one of the biggest exporters of eyeglass frames, sunglasses, eyewear lens, reading glasses in Jiangsu Province, China. Our main products are Titanium frames, Aluminium magnesium frames, Stainless steel frames, Acetate frames, TR90 fra...
PRISM BAR SET
Excellent for measuring:- Fusional Reserves – which can help in your diagnosis of binocular vision problems. Phorias & Squints – which can improve the accuracy of your estimations & monitoring. ...
20 D ASPHERICAL LENS
It is used Binocular Indirect Ophthalmoscope, which is perfectly corrected for field curvature, astigmatic aberrations and coma – delivering the best retinal image and perfect image clarity across the entire field of view for unsurpassed fundus examinations. Place of O...
optical lens
Model: Bl-1611 Specifications:16Xh10.6mm Material:Lens Optical Grade PMMA PC heat-resistance:100°Cbeam angle: 15 °Capplication field: spot lamp, projection light， Stage lighting ,Street lights Decorative light LED lens,optical lens,High power led lens,PMMA lens ...
cree led lens
Model: BL-22.5Q Specifications: 22.5Xh15.8mm Material: Lens Optical Grade PMMA PC heat-resistance:100 beam angle: 45 application field: spot lamp, projection light Stage lighting Street lights Decorative light LED lens,optical lens,High power led lens,PMMA len...
led lens
Model: BL-2211O Specifications: 22Xh9.6mm Material: Lens Optical Grade PMMA PC heat-resistance:100 beam angle: 30 application field: spot lamp, projection light Stage lighting Street lights Decorative light LED lens,optical lens,High power led lens,PMMA lens ...
cree led lens
Model: BL-2010M Specifications: 119.8X11.6mm Material: Lens Optical Grade PMMA PC Heat-resistance:100 beam angle: 10 application field: spot lamp, projection light Stage lighting Street lights Decorative light LED lens,optical lens,High power led lens,PMMA len...
led lens of cree
Model: BL-2211O Specifications: 22Xh9.6mm Material: Lens Optical Grade PMMA PC heat-resistance:100 beam angle: 30 application field: spot lamp, projection light Stage lighting Street lights Decorative light Place of Origin:Guangdong in China
led lens
Model: BL-22.5Q Specifications: 22.5Xh15.8mm Material: Lens Optical Grade PMMA PC heat-resistance:100 beam angle: 45 application field: spot lamp, projection light Stage lighting Street lights Decorative light LED lens,optical lens,High power led lens,PMMA len...
lenses
We can supply you: 1. GLASS LENS (index 1.523, 1.70, 1.80, 1.90 uncoated & A/R, size 65/70 mm) 2. CR-39 LENS (index 1.499, 1.56, 1.61, 1.67, 1.74 uncoated, H/C, H/M/C, size: 65/70/72 mm) 3. BIFOCAL LENS (glasses & CR-39. round-top bifocal, flat-top bifocal) 4. PROGRESSI...
Plano-Convex Cylindrical Lens
Plano-convex cylindrical lens,plano-concave cylindrical lens,bi-convex cylindrical lens,bi-concave cylindrical lens,meniscus cylindrical lens,long cylindrical lens,special cylindrical lens etc..Specifiction of our cylinderical lens as follow:*Material BK7 or other optical m...
