Optical element and method for producing the same

An optical element, tetragonal technology, used in optical elements, optics, instruments, etc.

Inactive Publication Date: 2011-04-06
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, off-axis light that is not conducive to object formation passes through the first lens group G1, is incident on the second lens g

Method used

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  • Optical element and method for producing the same
  • Optical element and method for producing the same
  • Optical element and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Example

[0106] first embodiment

[0107] (Instances of two-dimensional configurations of structures as straight lines and hexagonal lattice patterns: refer to Figure 4A to Figure 4F )

[0108] (Structure of Optical Elements)

[0109] Figure 4A is a schematic plan view showing an example of the configuration of the optical element 1 according to the first embodiment of the present invention. Figure 4B is shown Figure 4A An enlarged plan view of a portion of the optical element 1 shown in . Figure 4C is along Figure 4B The cross-sectional view of the trajectory T1, T3, ... in the. Figure 4D is along Figure 4B Cross-sectional views of trajectories T2, T4, ... in . Figure 4E is shown in the form corresponding to Figure 4B Schematic diagram of the modulated waveform of the laser beam used in the latent images of trajectories T1, T3, ... shown in . Figure 4F is shown in the form corresponding to Figure 4B A schematic diagram of the modulation waveform of the laser bea...

Example

[0198] second embodiment

[0199] (Example of the two-dimensional configuration of the structure as a straight line and a square lattice pattern: refer to Figure 17A to Figure 17F )

[0200] [Structure of optical element]

[0201] Figure 17A is a schematic plan view showing an example of the configuration of an optical element according to a second embodiment of the present invention. Figure 17B is shown Figure 17A An enlarged plan view of a portion of the optical element shown in . Figure 17C is along Figure 17B Cross-sectional views of trajectories T1, T3, ... in . Figure 17D is along Figure 17B Cross-sectional views of trajectories T2, T4, ... in . Figure 17E is shown in the form corresponding to Figure 17B Schematic diagram of the modulated waveform of the laser beam used in the latent images of trajectories T1, T3, ... shown in . Figure 17F is shown in the form corresponding to Figure 17B Schematic diagram of the modulated waveform of the laser beam...

Example

[0219] third embodiment

[0220] (Instances where the structure is configured in a circular arc or hexagonal lattice pattern in two dimensions: refer to Figure 20A to Figure 20D )

[0221] [Arrangement of Optical Components]

[0222] Figure 20A is a schematic plan view showing an example of the configuration of an optical element according to a third embodiment of the present invention. Figure 20B is shown Figure 20A An enlarged plan view of a portion of the optical element shown in . Figure 20C is along Figure 20B Cross-sectional views of trajectories T1, T3, ... in . Figure 20D is along Figure 20B Cross-sectional views of trajectories T2, T4, ... in .

[0223] The optical element 1 of the third embodiment is different from the first embodiment in that the trajectories T each have an arc shape and the structures 3 are arranged in an arc. like Figure 20B As shown, the structures 3 are configured to form a quasi-hexagonal lattice pattern, wherein the centers ...

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Abstract

The invention discloses an optical element having an anti-reflection function and a method for producing the same. The optical element includes a base having a first main surface and a second main surface; a plurality of structures composed of projections or recesses and arranged on the first main surface at a fine pitch equal to or less than the wavelength of visible light for which the amount of reflection is to be reduced; and a light-absorbing layer that absorbs the light and that is disposed on the second main surface, wherein the structures are arranged so as to form a plurality of rows of tracks on the first main surface and form a hexagonal lattice pattern, a quasi-hexagonal lattice pattern, a tetragonal lattice pattern, or a quasi-tetragonal lattice pattern, and the structures each have an elliptical cone shape or a truncated elliptical cone shape, the major axis direction of which is a direction in which the tracks extend.

Description

[0001] References to related applications [0002] The present application contains subject matter related to Japanese Priority Patent Application JP 2009-203178 filed in the Japan Patent Office on Sep. 2, 2009, the entire content of which is hereby incorporated by reference. technical field [0003] The present invention relates to optical elements and methods for manufacturing optical elements. More specifically, the present invention relates to an optical element in which a plurality of structures are arranged at a fine pitch equal to or smaller than the wavelength of light whose reflection amount is to be reduced. Background technique [0004] like figure 1 As shown, in a lens barrel 101 of an optical instrument such as a camera or a telescope, external light L1 incident from a lens 102 is diffusely reflected at the end faces of the lens 102 and the lens 103 . For example, since the diffusely reflected light component L2 generated at the end face propagates to the lens...

Claims

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Application Information

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IPC IPC(8): G02B1/11
CPCG02B27/0018G02B1/118
Inventor 远藤惣铭林部和弥
Owner SONY CORP
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