(0)G02B:5/5:
IPC6
SECTION G - PHYSICS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B
6/6
<<   >>   G02B025/00 - G02B027/62  

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/ 00 Eyepieces; Magnifying glasses (simple lenses G 02 B 3/00)

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/ 02 • with means for illuminating object viewed  

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/ 04 • affording a wide-angle view, e.g. through a spy-hole  
 

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/ 00 Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating (mechanically operable parts of lighting devices for the control of light order F 21 V; specially adapted for measuring characteristics of light G 01 J; devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements G 02 F 1/00; control of light in general G 05 D 25/00; control of light sources H 01 S 3/10, H 05 B 37/00 to H 05 B 43/00) [4]

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/ 02 • for controlling the intensity of light [4]  

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/ 04 • • by periodically varying the intensity of light, e.g. using choppers [4]  

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/ 06 • for controlling the phase of light (G 02 B 26/08 takes precedence) [4]  

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/ 08 • for controlling the direction of light (in light guides G 02 B 6/35) [4]  

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/ 10 • • Scanning systems (for special applications, see the relevant places, e.g. G 03 B 27/32, G 03 F 3/08, G 03 G 15/04, G 09 G 3/00, H 04 N) [4]  

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/ 12 • • • using multifaceted mirrors [6]  
 

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/ 00 Other optical systems; Other optical apparatus (means for bringing-about special optical effects in shop-windows, showcases A 47 F, e.g. A 47 F 11/06; optical toys A 63 H 33/22; designs or pictures characterised by special light effects B 44 F 1/00)

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/ 01 • Head-up displays [6]  

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/ 02 • Viewing or reading apparatus (stereoscopic systems G 02 B 27/22; of the projection type G 03 B; slide-changing apparatus G 03 B)  

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/ 04 • • having collapsible parts  

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/ 06 • • with moving-picture effect  

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/ 08 • • Kaleidoscopes  

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/ 09 • Beam shaping, e.g. changing the cross-sectioned area, not otherwise provided for [6]  

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/ 10 • Beam splitting or combining systems (mixing and splitting light signals using optical waveguides G 02 B 6/28; polarising systems G 02 B 27/28) [4]  

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/ 12 • • operating by refraction only  

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/ 14 • • operating by reflection only  

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/ 16 • • used as aids for focusing  

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/ 18 • for optical projection, e.g. combination of mirror and condenser and objective  

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/ 20 • • for imaging minute objects, e.g. light-pointer  

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/ 22 • for producing stereoscopic or other three-dimensional effects (in microscopes G 02 B 21/22; viewing apparatus G 02 B 27/02)  

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/ 24 • • involving reflecting prisms and mirrors only  

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/ 26 • • involving polarising means  

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/ 28 • for polarising (used in stereoscopes G 02 B 27/26)  

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/ 30 • Collimators  

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/ 32 • Fiducial marks or measuring scales within the optical system  

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/ 34 • • illuminated  

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/ 36 • • adjustable  

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/ 40 • Optical focusing aids (beam splitting or combining systems G 02 B 27/10)  

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/ 42 • Diffraction optics (G 02 B 27/60 takes precedence) [3]  

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/ 44 • • Grating systems; Zone plate systems (G 02 B 27/46 takes precedence; spectrometry G 01 J) [3]  

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/ 46 • • Systems using spatial filters (character recognition G 06 K 9/00) [3]  

Note
 

In this group, the filter may be in any plane, e.g. the image or the Fourier transfer plane. [3]

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/ 48 • Laser speckle optics (speckle suppression in holography G 03 H 1/32) [3]  

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/ 50 • Optics for phase object visualisation [3]  

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/ 52 • • Phase contrast optics (in microscopes G 02 B 21/14) [3]  

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/ 54 • • Schlieren-optical systems [3]  

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/ 56 • Optics using evanescent waves, i.e. inhomogeneous waves [3]  

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/ 58 • Optics for apodization or superresolution; Optical synthetic aperture systems [3]  

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/ 60 • Systems using moire fringes (means for converting the output of a sensing member using diffraction gratings G 01 D 5/38) [3]  

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/ 62 • Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems (adjusting means being part of the system to be assembled G 02 B 7/00) [3]  

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/ 64 • Imaging systems using optical elements for stabilisation of the lateral and angular position of the image (focusing systems G 02 B 7/04; adjustment of optical system relative to image or object surface G 03 B 5/00) [3]  

 

 

 
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