IPC 7 English version
 
G02-G02B00654
  G02B 7/00 - G02B 13/26  

SECTION G – PHYSICS


G 02OPTICS (making optical elements or apparatus B24B, B29D 11/00, C03, or other appropriate subclasses or classes; materials per se, see the relevant places, e.g. C03B, C03C)


G 02 BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS (G02F takes precedence; optical elements specially adapted for use in lighting devices or systems thereof F21V 1/00 to F21V 13/00; measuring-instruments, see the relevant subclass of class G01, e.g. optical rangefinders G01C; testing of optical elements, systems, or apparatus G01M 11/00; spectacles G02C; apparatus or arrangements for taking photographs or for projecting or viewing them G03B; sound lenses G10K 11/30; electron and ion "optics" H01J; X-ray "optics" H01J, H05G 1/00; optical elements structurally combined with electric discharge tubes H01J 5/16, H01J 29/89, H01J 37/22; microwave "optics" H01Q; combination of optical elements with television receivers H04N 5/72; optical systems or arrangements in colour television systems H04N 9/00; heating arrangements specially adapted for transparent or reflecting areas H05B 3/84) [1,7]


Notes

(1)In this subclass, the following terms or expressions are used with the meanings indicated:

 –"simple lens or prism" means a single lens or prism;

 –"compound lens or prism" means an optical member, the constituents of which either are close together without air-space or (except in group G02B 11/00) are "in broken contact", i.e. with the air-space between the constituents having no essential optical influence;

 –"objective" means a lens or an optical system designed to produce a real image of a real object;

 –"eyepiece" means a lens or an optical system designed to produce a virtual image for viewing by the eye or by another optical system;

 –"front" or "rear" is determined by looking from the more distant conjugate.

(2)Attention is drawn to the Notes following the titles of class B81 and subclass B81B relating to "micro-structural devices" and "micro-structural systems". [7]


Subclass Index

OPTICAL ELEMENTS 

Characterised by their structure: lenses; light guides; other elements 

G02B 3/00; G02B 6/00; G02B 5/00 

Characterised by the material 

G02B 1/00 

OPTICAL SYSTEMS 

General structure: number and arrangements of optical components 

G02B 9/00, G02B 11/00 

Special structures: according to purpose; with variable magnification; with reflecting surfaces 

G02B 13/00; G02B 15/00; G02B 17/00 

Other systems 

G02B 27/00 

STRUCTURAL DETAILS OF ARRANGEMENTS COMPRISING LIGHT GUIDES AND OTHER OPTICAL ELEMENTS 

G02B 6/00 

OPTICAL APPARATUS 

Condensers 

G02B 19/00 

Microscopes 

G02B 21/00 

Telescopes, periscopes, instruments for viewing the inside of hollow bodies, viewfinders, aiming or sighting devices 

G02B 23/00 

Eyepieces, magnifying glasses 

G02B 25/00 

Other apparatus 

G02B 27/00 

CONTROL OF LIGHT 

G02B 26/00 

MOUNTINGS, ADJUSTING MEANS, LIGHT-TIGHT CONNECTIONS 

G02B 7/00 


1/

00Optical elements characterised by the material of which they are made (compositions of optical glasses C03C 3/00); Optical coatings for optical elements

1/

02.made of crystals, e.g. rock-salt, semiconductors (G02B 1/08 takes precedence)

1/

04.made of organic materials, e.g. plastics (G02B 1/08 takes precedence)

1/

06.made of fluids in transparent cells

1/

08.made of polarising materials

1/

10.Optical coatings produced by application to, or surface treatment of, optical elements (G02B 1/08 takes precedence)

1/

11..Anti-reflection coatings  [6]

1/

12..by surface treatment, e.g. by irradiation


3/

00Simple or compound lenses (artificial eyes A61F 2/14; spectacle lenses or contact lenses for the eyes G02C; watch or clock glasses G04B 39/00)

3/

02.with non-spherical faces (G02B 3/10 takes precedence)

3/

04..with continuous faces that are rotationally symmetrical but deviate from a true sphere

3/

06..with cylindrical or toric faces

3/

08..with discontinuous faces, e.g. Fresnel lens

3/

10.Bifocal lenses; Multifocal lenses

3/

12.Fluid-filled or evacuated lenses

3/

14..of variable focal length


5/

00Optical elements other than lenses (light guides G02B 6/00; optical logic elements G02F 3/00) [4]

5/

02.Diffusing elements; Afocal elements

5/

04.Prisms

5/

06..Fluid-filled or evacuated prisms

5/

08.Mirrors

5/

09..Multifaceted or polygonal mirrors  [6]

5/

10..with curved faces

5/

12.Reflex reflectors

5/

122..cube corner, trihedral or triple reflector type  [2]

5/

124...plural reflecting elements forming part of a unitary plate or sheet  [2]

5/

126..including curved refracting surface  [2]

5/

128...transparent spheres being embedded in matrix  [2]

5/

13...plural curved refracting elements forming part of a unitary body  [2]

5/

132...with individual reflector mounting means  [2]

5/

134....including a threaded mounting member  [2]

5/

136..plural reflecting elements forming part of a unitary body (G02B 5/124 takes precedence)  [2]

5/

18.Diffracting gratings

5/

20.Filters (polarising elements G02B 5/30; filters specially adapted for photographic purposes G03B 11/00)

5/

22..Absorbing filters

5/

23...Photochromic filters  [2]

5/

24...Liquid filters (G02B 5/23 takes precedence)  [2]

5/

26..Reflecting filters (G02B 5/28 takes precedence)

5/

28..Interference filters

5/

30.Polarising elements (light-modulating devices G02F 1/00)

5/

32.Holograms used as optical elements (processes or apparatus for producing holograms G03H)  [2]


6/

00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings  [4,6]

6/

02.Optical fibre with cladding (G02B 6/16 takes precedence; mechanical structures for providing tensile strength and external protection G02B 6/44)  [4]

6/

04.formed by bundles of fibres (G02B 6/24 takes precedence)  [4]

6/

06..the relative position of the fibres being the same at both ends, e.g. for transporting images  [4]

6/

08...with fibre bundle in form of plate  [4]

6/

10.of the optical waveguide type (G02B 6/24 takes precedence; devices or arrangements for the control of light by electric, magnetic, electro-magnetic or acoustic means G02F 1/00; transferring the modulation of modulated light G02F 2/00; optical logic elements G02F 3/00; optical analogue/digital converters G02F 7/00; stores using opto-electronic devices G11C 11/42; electric waveguides H01P; transmission of information by optical means H04B 10/00; multiplex systems H04J 14/00)  [4]

6/

12..of the integrated circuit kind (production or processing of single crystals C30B; electric integrated circuits H01L 27/00)  [4]

6/

122...Basic optical elements, e.g. light-guiding paths  [6]

6/

124....Geodesic lenses or integrated gratings  [6]

6/

125....Bends, branchings or intersections  [6]

6/

126...using polarisation effects  [6]

6/

13...Integrated optical circuits characterised by the manufacturing method  [6]

6/

132....by deposition of thin films  [6]

6/

134....by substitution by dopant atoms  [6]

6/

136....by etching  [6]

6/

138....by using polymerisation  [6]

6/

14..Mode converters  [4]

6/

16..Optical fibre with cladding (mechanical structures for providing tensile strength and external protection G02B 6/44)  [4]

6/

17...with polarisation-maintaining properties  [6]

6/

18...with core or cladding having graded refractive index  [4]

6/

20...with non-solid core or cladding  [4]

6/

22...core or cladding comprising multiple layers  [4]

6/

24.Coupling light guides (for electric waveguides H01P 1/00)  [4,5]

6/

245..Removing protective coverings of light guides before coupling  [5]

6/

25..Preparing the ends of light guides for coupling, e.g. cutting  [5]

6/

255..Splicing of light guides, e.g. by fusion or bonding  [5]

6/

26..Optical coupling means (G02B 6/36, G02B 6/42 take precedence)  [4]

6/

27...with polarisation selective and adjusting means (polarisation elements in general G02B 5/30; polarisation systems in general G02B 27/28; optical polarisation multiplex systems H04J 14/06)  [6]

6/

28...having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals  [4]

6/

287....Structuring of light guides to shape optical elements with heat application (G02B 6/255 takes precedence)  [6]

6/

293....with wavelength selective means (for optical elements in use, see the relevant subgroups of this subclass; optical wavelength-division multiplexing systems H04J 14/02)  [6]

6/

30...for use between fibre and thin-film device  [4]

6/

32...having lens focusing means  [4]

6/

34...utilising prism or grating  [4]

6/

35...having switching means (optical switching in general G02B 26/08; by changing the optical properties of the medium G02F 1/00)  [6]

6/

36..Mechanical coupling means (G02B 6/255, G02B 6/42 take precedence)  [4,5]

6/

38...having fibre to fibre mating means  [4]

6/

40...having fibre bundle mating means  [4]

6/

42..Coupling light guides with opto-electronic elements  [4]

6/

43...Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections (light-emissive or light-sensitive semiconductor devices H01L 27/00, H01L 31/00, H01L 33/00; semiconductor lasers monolithically integrated with other components H01S 5/026)  [6]

6/

44.Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables (cables incorporating electric conductors and optical fibres H01B 11/22)  [4]

6/

46.Processes or apparatus adapted for installing optical fibres or optical cables (installation of cables containing electric conductors and optical fibres H02G)  [6]

6/

48..Overhead installation  [6]

6/

50..Underground or underwater installation; Installation through tubing, conduits or ducts  [6]

6/

52...using fluid, e.g. air  [6]

6/

54...using mechanical means, e.g. pulling or pushing devices  [6]

   G02B 7/00 - G02B 13/26