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Shutter with large aperture

It is a technology of light and shutter, which is applied in the direction of shutter, optics, camera, etc. It can solve the problems of no practical operability, cumbersome overall structure, and low space utilization rate, and achieve good rigidity, simple structure, easy overall installation and The effect of disassembly

Inactive Publication Date: 2013-11-20
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, this design is impossible to achieve the same movement of the synchronous conveyor belts on both sides of the base in practice, which will easily cause the blades to get stuck
And the overall structure is cumbersome, the space utilization rate is low, and it is not practical

Method used

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Experimental program
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Effect test

Embodiment Construction

[0018] like figure 1 As shown, including base 1 is the base of the whole mechanism, 1 motor base 13, 1 driven wheel base 3, 1 tensioning wheel seat 10, 1 driving wheel one 11, one driving wheel two 12, 1 slave Driving wheel one 4, one driven wheel two 5, one pair of synchronous transmission one 7, one pair of synchronous belt two 6 are installed on one side of the base. Motor base 13 and driven wheel base 3 are installed on base 1 left and right sides, driving wheel one 11 and driving wheel two 12 concentric shafts are fixed on the motor base 13, driven wheel one 4 and driven wheel two 5 concentric shafts are fixed on slave On the driving wheel base 3, adjust the motor base 13 and the waist hole on the driven wheel base 3 to ensure that the upper part of the synchronous conveyor belt 26 is connected to the pulley and the upper part is horizontal and at the same level as the upper surface of the base 1. Here, in order to reduce the quality of the shutter, the active The first ...

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Abstract

The invention discloses a shutter with a large aperture, comprising a base and a blade driving mechanism arranged at one side of the base, wherein the base is provided with a central hole with the same exposure area with the shutter, and the blade driving mechanism consists of two synchronous conveyor belt wheel sets comprising two driving wheels, two driven wheels and two synchronous conveyor belts. The two driving wheels are arranged on a motor base fixed on the base through the same central shaft, the two driven wheels are arranged on a driven wheel base fixed on the base through the same central shaft, the synchronous conveyor belts are arranged on the driving wheels and the driven wheels, a tensioning wheel is fixedly arranged on the base and at the inner sides of the driving wheels and the driven wheels, the upper half parts of the two synchronous conveyor belts are fixed on positions slightly higher than the upper surface of the base, gaps are remained between the upper half parts of the two synchronous conveyor belts and used for fixedly installing blades, and one ends of the two blades are respectively fixed on the upper parts of the two synchronous conveyor belts through synchronous belt connecting pieces. The aperture of the shutter is up to phi 200mm, and the exposure time can be set according to the actual demands.

Description

technical field [0001] The invention belongs to the field of optical detection instrument design, in particular to a large-diameter synchronous pulley shutter device. Background technique [0002] Traditional telescopes are limited by the aperture of the primary mirror and the size of the detector target surface, so there is not much demand for the aperture of the shutter. Generally, the demand can be met by purchasing foreign shutters with an aperture of less than φ100mm. With the increase of the aperture of the main mirror of the telescope and the target surface of the detector, the demand for the aperture of the shutter is further increased, and the shutter that meets the requirements of the aperture and size of the required aperture cannot be purchased through foreign purchases, prompting us to Invent a shutter that meets the requirements of use. [0003] Traditional shutter structures include leaf shutters and center shutters. The basic principle of the leaf shutter i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B9/40
Inventor 胡家文马文礼黄金龙汪旋
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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