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Light adjustment device and inter-substrate distance measurement method for light adjustment device

A technology of distance measurement and light adjustment, which is applied in the direction of using optical devices, measuring devices, apertures, etc., and can solve the problems of not being able to measure the space interval of blade parts and ensuring the accuracy of the space that cannot be easily confirmed.

Active Publication Date: 2016-11-16
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the structure described in this gazette, after being assembled into a device, it is not possible to measure the interval of the space in which the blade members operate with high precision in a short time, and it is not easy to confirm whether the required precision space is ensured.

Method used

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  • Light adjustment device and inter-substrate distance measurement method for light adjustment device
  • Light adjustment device and inter-substrate distance measurement method for light adjustment device
  • Light adjustment device and inter-substrate distance measurement method for light adjustment device

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Experimental program
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Embodiment approach 1

[0031] Figure 1 to Figure 10 Embodiment 1 of this invention is shown.

[0032] First, refer to Figure 1 ~ Figure 3 , the basic configuration of the light adjustment device will be described. here, figure 1 It is an exploded perspective view showing the basic configuration of the light adjustment device in the direction of the optical axis, figure 2 It is a perspective view showing the basic configuration of the light adjustment device, image 3 It is a sectional view showing the state of the space formed between the first substrate and the second substrate of the light adjustment device.

[0033] The light adjusting device is a device for adjusting light, and the adjustment mentioned here includes light amount adjustment and pupil adjustment by an aperture, light amount adjustment by an ND filter, light concentration adjustment by a lens, and polarization-based adjustment. The polarization adjustment of the optical filter, the wavelength band adjustment based on the co...

Embodiment approach 2

[0092] Figure 11 It is a figure which shows Embodiment 2 of this invention, and is a perspective view which shows the structure of a light adjustment device. In this second embodiment, the same reference numerals and the like are attached to the same parts as those in the above-mentioned first embodiment, and explanations thereof are appropriately omitted, and only differences will be mainly described.

[0093] In the above-mentioned first embodiment, the diameter of the second substrate 2 is set to be larger than the diameter of the first substrate 1, but in this embodiment, the diameter of the second substrate 2 is substantially the same as the diameter of the first substrate 1. A portion corresponding to the notch 1c protrudes the second substrate 2 in the radially outer direction to form a protruding portion 2d.

[0094] According to such second embodiment, substantially the same effect as that of the above-mentioned first embodiment can be obtained, and the size of the ...

Embodiment approach 3

[0097] Figure 12 and Figure 13 It is a figure which shows Embodiment 3 of this invention, Figure 12 is a perspective view showing the configuration of the light adjustment device, Figure 13 It represents the first substrate 1, the second substrate 2 and the spacer 3 in the light adjustment device Figure 12 13-13 sectional view of . In this third embodiment, the same reference numerals and the like are assigned to the same parts as those in the first and second embodiments described above, and explanations thereof are appropriately omitted, and only differences will be mainly described.

[0098] In the above-mentioned Embodiments 1 and 2, the first portion to be measured for measuring the distance from the first substrate 1 side to the spacer 3 is set on the first substrate 1, and is used to measure the distance from the first substrate 1 side. The second portion to be measured at a distance from the second substrate 2 is provided on the second substrate 2, but in this...

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Abstract

A light adjustment device provided with a first substrate (1), a second substrate (2), a spacer (3) for forming a space for disposing a light adjustment unit between the first substrate (1) and second substrate (2), a notch (1c) provided such that measurement light (ML) for measuring the distance of the space reaches the spacer (3), and a periphery extension part (2c) provided such that the measurement light (ML) reaches the second substrate (2).

Description

technical field [0001] The present invention relates to an optical adjustment device in which an optical adjustment unit is arranged in a space between substrates, and a method for measuring a distance between substrates of the optical adjustment device. Background technique [0002] Imaging devices having an imaging function are widely used in various fields, but among them there is a field of compact imaging devices having a relatively small shape. Some examples of such small imaging devices include electronic endoscopes including microscopic video endoscopes, optical microscopes equipped with imaging functions, portable devices equipped with imaging functions, and the like. [0003] Conventional compact imaging equipment has adopted fixed focus lenses, fixed aperture stops, fixed characteristic filters, etc. as optical elements such as lenses, apertures, and optical filters in order to prioritize miniaturization. [0004] On the other hand, in recent years, high image qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B9/02G03B11/00G03B17/12
CPCG03B9/04G03B9/02G01B11/14
Inventor 冲田龙彦
Owner OLYMPUS CORP
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