Focal with K9l Lens Spherical Optical Plano-Concave Lens

• Customization: Available
• Usage: Lighting, Medical, Optical, Photography
• Type: Concave Lens
• Model NO.: yt139
• Transmittance: >95%
• Shape: Single-lens
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS
• Customized: Customized
• Coating: EMI
• Transport Package: Carton
• Specification: 1.5mm-300mm
• Trademark: YuTai
• Origin: Changchun
• HS Code: 9001909090
• Production Capacity: 50000/Year
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 1.000kg
• Lead Time: 30 days (1 - 100 Pieces) ; To be negotiated ( > 100 Pieces)

Product Description

Spherical lenses are transparent in nature, as they are made up of glass or clear plastic. Hence, they refract light as light can pass through them completely. Light undergoes a change in speed on entering a lens and again on emerging out of it.
Spherical lenses offer simplicity and cost-effectiveness for less demanding applications.

is compose of a plane and concave surface, has a negative focal length and negative spherical aberration, which often can be used to expand beam or increase focal length, and balance out aberrations of other lenses in the system. The used materials include BK7, SF11, UV-fused silica, and CaF2,etc.
 

What is a ?

Spherical lenses are so named because the surface is a section of a sphere. Thus, the radius of curvature is constant across the entire lens. The spherical surface causes light to converge (from a convex surface) or to diverge (from a concave surface), with the amount of focusing power proportional to the index of refraction of the glass.

How Does Optical Spherical Lens Work?

Plano-convex lenses are used for applying focus to an optical system, and collimating diverging light beams. … Low spherical aberration is obtained if the lens is orientated in a way that causes the collimated beam to enter or exit the curved surface, thereby making the plano side face towards the point source or focus.

 

Materials	BK7, Fused Silica,Ge,Si, CaF2...
Diameter	1.5-300mm
Diameter Tolerance:	+/-0.02 mm
Thickness Tolerance	0+/-0.02mm
Centring Error	<3 Arc minute
Surface Quality:	60-40,,40-20,20-10
Surface Figure:	λ/10@633nm
Clear Aperture	90%
Coating:	Specified by customers

 

It is also available to supply the coating wavelength curve, such as AR coating,BBR coating,filter coating and so on.


Changchun Yutai Optics Co.,Ltd. is a manufacturer with ISO9001 certification. We are specialized in high-performance optical components
include lens, mirrors, filters, windows and prisms which are specified by customers. Yutai's items are widely used in imaging, defense, medical,
laser and industry market. As a fast-growing supplier in Optics, Yutai Optics has quickly established itself as a leader in optical components with advanced technology and quality control ability as Yutai aims to provide professional service and good quality items to meet customers' request.
Yutai already established long-term relation with many powerful companies all over the world.



 

• Q: What are your main products?
• A: Optical lens,mirrors,windows,filters,prisms
•  
• Q: How long is your delivery time?
• A: In general delivery time is about one month for custom produced optics.except stock ones or some special optics.
•  
• Q: Do you provide samples ? is it free or extra ?
• A: We can provide free samples if we have stock optics as your request,while custom produced samples are not free.
•  
• Q:What is your MOQ ?
• MOQ is 10pcs for most of the optics, while MOQ could be only one piece if you need a element in big dimention.
•  
• Q: What is your terms of payment ?
• T/T,L/C,VISA,Paypal,Alipay or Negotiation.