Severity: 8192
Message: Creation of dynamic property CI_URI::$config is deprecated
Filename: core/URI.php
Line Number: 101
Backtrace:
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Router::$uri is deprecated
Filename: core/Router.php
Line Number: 127
Backtrace:
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$benchmark is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$hooks is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$config is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$log is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$utf8 is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$uri is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$exceptions is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$router is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$output is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$security is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$input is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$lang is deprecated
Filename: core/Controller.php
Line Number: 75
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$load is deprecated
Filename: core/Controller.php
Line Number: 78
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$db is deprecated
Filename: core/Loader.php
Line Number: 396
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_DB_mysqli_driver::$failover is deprecated
Filename: database/DB_driver.php
Line Number: 371
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 132
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 292
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 166
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 235
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 315
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 356
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 282
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 289
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 304
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 314
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 315
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 316
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 317
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 375
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 110
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start(): Session cannot be started after headers have already been sent
Filename: Session/Session.php
Line Number: 143
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$session is deprecated
Filename: core/Loader.php
Line Number: 1283
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 23
Function: __construct
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$dashboard_model is deprecated
Filename: core/Loader.php
Line Number: 358
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 24
Function: model
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$main_model is deprecated
Filename: core/Loader.php
Line Number: 358
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 25
Function: model
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$login_model is deprecated
Filename: core/Loader.php
Line Number: 358
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 26
Function: model
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Page::$pagination is deprecated
Filename: core/Loader.php
Line Number: 1283
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 29
Function: library
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$benchmark is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$hooks is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$config is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$log is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$utf8 is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$uri is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$exceptions is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$router is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$output is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$security is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$input is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$lang is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$load is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$db is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$session is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$dashboard_model is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$main_model is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$login_model is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$pagination is deprecated
Filename: core/Loader.php
Line Number: 931
Backtrace:
File: /home/seo1rank/coeoptics.com/application/controllers/Page.php
Line: 98
Function: view
File: /home/seo1rank/coeoptics.com/index.php
Line: 315
Function: require_once
COE Optics' optical lenses are designed to meet the demanding requirements of laser electro-optic applications, and all of our BK7 material is from annealed optical glass and are polished to tight tolerances using master test plates to ensure minimum wavefront distortion.
An optical lens is an optical device that focuses on or disperses a light beam by means of refraction. A simple optical lens consists of a single piece of optical material while a compound lens consists of several simple lenses (elements), usually arranged along a common axis. COE Optics optical Lenses are mainly made from materials such as sapphire, optical glass, fused silicon and IR material: Silicon and Germanium. A lens can focus light to form an image, unlike a prism, which refracts light without focusing.
Optical lenses are classified by the curvature of the two optical surfaces. An optical lense is biconvex (or double convex, or just convex) if both surfaces are convex. If both surfaces have the same radius of curvature, the lens is bi-convex. A lens with two concave surfaces is biconcave (or just concave). If one of the surfaces is flat, the lens is Plano-convex or Plano-concave depending on the curvature of the other surface. A lens with one convex and one concave side is convex-concave or meniscus. It is this type of lens that is most commonly used in corrective lenses.
If the optical lens is biconvex or Plano-convex, a collimated beam of light passing through the optical lens converges to a spot (a focus) behind the lens. In this case, the lens is called a positive or converging lens. For a thin lens in air, the distance from the lens to the spot is the focal length of the lens, which is commonly represented by f in diagrams and equations. An extended hemispherical lens is a special type of Plano-convex lens, in which the lens's curved surface is a full hemisphere and the lens is much thicker than the radius of curvature.
If the optical lens is biconcave or Plano-concave, a collimated beam of light passing through the optical lens is diverged (spread); the lens is thus called a negative or diverging lens. The beam, after passing through the lens, appears to emanate from a particular point on the axis in front of the lens. For a thin lens in air, the distance from this point to the lens is the focal length, though it is negative with respect to the focal length of a converging lens.
Convex-concave (meniscus) lenses can be either positive or negative, depending on the relative curvatures of the two surfaces. A negative meniscus lens has a steeper concave surface and is thinner at the centre than at the periphery. Conversely, a positive meniscus lens has a steeper convex surface and is thicker at the centre than at the periphery. An ideal thin lens with two surfaces of equal curvature would have zero optical power, meaning that it would neither converge nor diverge light. All real lenses have nonzero thickness, however, which makes a real lens with identical curved surfaces slightly positive. To obtain exactly zero optical power, a meniscus lens must have slightly unequal curvatures to account for the effect of the lens' thickness.
Our diameters are from 1.50 mm to 400 mm. They can be uncoated or multi-layer AR coated.
| Attribute | Specification |
| Radius | R≥1.5 |
| Centration | ≥1’ |
| Diameter | 1.50~400nm |
| Surface Figure | 2λ~λ/10 |
| Surface Quality | 80/50~10/5 |
| Bevel | 0.25mm at 45 deg |
| Coating | Single or Multi-layer films |
We have lots of Optical Lenses in our stock and pls check with our sales for details.
| Optical lenses | Plano-convex (PCX) | Ø12.7mm*FL20 |
| Optical lenses | Plano-convex (PCX) | Ø12.7mm*FL30 |
| Optical lenses | Plano-convex (PCX) | Ø15mm*FL20 |
| Optical lenses | Plano-convex (PCX) | Ø15mm *FL30 |
| Optical lenses | Plano-convex (PCX) | Ø15mm*FL40 |
| Optical lenses | Plano-convex (PCX) | Ø15mm *FL50 |
| Optical lenses | Plano-convex (PCX) | Ø15mm*FL60 |
| Optical lenses | Plano-convex (PCX) | Ø25.4*40m |
| Optical lenses | Plano-convex (PCX) | Ø25.4*50m |
Contact us
Hotline: +8625 8361 6456
Add： No1001 Fuying Rd(Union East U-Valley #19 building),Jiangning District,Nanjing 211100,P.R.China
Tel：+86 25 83616456 Ext. 8008
Contact person：Rena Jin
Email：sales@coeoptics.com
