阅读说明：本技术 显示保护头盔成像位置调整方法 (Method for adjusting imaging position of display protection helmet ) 是由 娄红涛 沈伟 董冉 李文阳 陈英 邓媛媛 胡洪涛 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种显示保护头盔成像位置调整方法,夹持模块伸入显示保护头盔将显示保护头盔上左、右、后三侧的特征点定位固定,从而保证正确佩戴显示保护头盔时的姿态,对比模块伸入显示保护头盔内并模拟理论眼位,理论眼位的位置根据显示保护头盔的型号匹配,显示保护头盔的显示部件被激活后,投射的图像信息经过显示镜片反射至理论眼位上,操作人员对图像信息采点并拟合出实际成像位置的中心点,若实际成像位置的中心点偏离理论眼位的中心点在一定范围内,则判定为合格,否则判定为不合格并调整显示保护头盔的零部件直至合格。该方法可以具象的模拟理论眼位,精确测量实际成像位置与理论眼位的位置位差,方便快速调整显示保护头盔成像位置。(The invention discloses an imaging position adjusting method of a display protection helmet, wherein a clamping module extends into the display protection helmet to position and fix characteristic points of the left side, the right side and the rear side of the display protection helmet, so that the posture of the display protection helmet when the display protection helmet is worn correctly is ensured, a comparison module extends into the display protection helmet and simulates a theoretical eye position, the position of the theoretical eye position is matched according to the model of the display protection helmet, after a display part of the display protection helmet is activated, projected image information is reflected to the theoretical eye position through a display lens, an operator collects points of the image information and fits the central point of an actual imaging position, if the central point of the actual imaging position deviates from the central point of the theoretical eye position within a certain range, the central point is judged to be qualified, otherwise, the central point is judged to be unqualified, and parts of the display protection helmet are adjusted until the central point is qualified. The method can simulate the theoretical eye position, accurately measure the position difference between the actual imaging position and the theoretical eye position, and conveniently and quickly adjust and display the imaging position of the protective helmet.)

1. A method for adjusting the imaging position of a display protection helmet is characterized in that: the imaging position is accurately measured through a measuring device, the measuring device comprises a clamping module and a comparison module, the clamping module extends into a display protection helmet to position and fix characteristic points of the left side, the right side and the rear side of the display protection helmet, so that the posture of the display protection helmet when the display protection helmet is worn correctly is guaranteed, the comparison module extends into the display protection helmet and simulates a theoretical eye position, the position of the theoretical eye position is matched according to the model of the display protection helmet, after a display part of the display protection helmet is activated, projected image information is reflected to the theoretical eye position through a display lens, an operator collects points of the image information and fits the central point of an actual imaging position, if the central point of the actual imaging position deviates from the central point of the theoretical eye position within a certain range, the imaging position is judged to be unqualified, and parts of the display protection helmet are adjusted to be qualified.

2. The method for adjusting the imaging position of a display protection helmet as claimed in claim 1, wherein: the theoretical eye position is provided with a plurality of layers of concentric circles by taking the central point as the center of the circle.

3. The method for adjusting the imaging position of a display protection helmet as claimed in claim 1, wherein: before projecting the image information, firstly pasting a paper board on a theoretical eye position, and directly carrying out point fitting on the image information on the paper board by an operator.

4. The method for adjusting the imaging position of a display protection helmet as claimed in claim 1, wherein: the clamping module and the comparison module are both installed on the base, the clamping module comprises clamping support rods distributed on the left side, the right side and the rear side of the base and positioning screws installed at the top of the clamping support rods through embedding sleeves, the positioning screws are used for being matched with mounting holes on the corresponding side of the display protection helmet, and the comparison module comprises a comparison support rod and a replaceable theoretical eye position installed on the upper portion of the comparison support rod, which are arranged on the front side of the base.

5. The method for adjusting the imaging position of a display protection helmet as claimed in claim 4, wherein: the theoretical eye position is matched with the comparison supporting rod through a pin and is fixedly connected with the comparison supporting rod through a screw.

6. The method for adjusting the imaging position of a display protection helmet as claimed in claim 4, wherein: the clamping support rod is arranged on the base through a countersunk head screw.

7. The method for adjusting the imaging position of a display protection helmet as claimed in claim 4, wherein: the contrast bracing piece passes through cylindric lock and base cooperation.

Technical Field

The invention belongs to the field of pilot helmets, and particularly relates to a method for adjusting an imaging position of a display protection helmet.

Background

The display protection helmet matched with the airplane can provide a display picture for the pilot besides playing a basic protection role, so that the pilot can observe the flight navigation and attack aiming information superposed on an external scene through the display lens. At present, the phenomenon that a pilot observes a fuzzy and easily feels eyestrain due to the fact that the imaging position of the display protection helmet is not located at the exit pupil position exists, and the imaging position of the display protection helmet can be adjusted only by repeated testing due to the fact that the imaging position cannot be accurately measured.

Disclosure of Invention

The invention aims to provide a method for adjusting the imaging position of a display protection helmet, which can simulate a theoretical eye position, can accurately measure the position difference between an actual imaging position and the theoretical eye position, and can conveniently and quickly adjust the imaging position of the display protection helmet.

The technical scheme adopted by the invention is as follows:

a method for adjusting the imaging position of a display protection helmet comprises accurately measuring the imaging position by a measuring device, wherein the measuring device comprises a clamping module and a comparison module, the clamping module extends into the display protection helmet to position and fix the characteristic points of the left, right and back sides of the display protection helmet, thereby ensuring the posture of the display protection helmet when the display protection helmet is worn correctly, the comparison module extends into the display protection helmet and simulates a theoretical eye position, the position of the theoretical eye position is matched according to the model of the display protection helmet, after a display part of the display protection helmet is activated, the projected image information is reflected to the theoretical eye position through the display lens, an operator collects points of the image information and fits the central point of the actual imaging position, if the central point of the actual imaging position deviates from the central point of the theoretical eye position within a certain range, judging the helmet to be qualified, otherwise judging the helmet to be unqualified, and adjusting the parts of the display protection helmet until the helmet is qualified.

Furthermore, a plurality of layers of concentric circles are arranged on the theoretical eye position by taking the central point as the center of the circle.

Further, before image information is projected, a paper board is attached to a theoretical eye position, and an operator directly performs point fitting on the image information on the paper board.

Furthermore, the clamping module and the comparison module are both installed on the base, the clamping module comprises clamping support rods distributed on the left side, the right side and the rear side of the base and positioning screws installed at the tops of the clamping support rods through embedding sleeves, the positioning screws are used for being matched with mounting holes on the corresponding side of the display protection helmet, and the comparison module comprises a comparison support rod and a replaceable theoretical eye position installed on the upper portion of the comparison support rod, which are arranged on the front side of the base.

Further, theoretical eye position is through pin and contrast bracing piece cooperation, link firmly with contrast bracing piece through the screw.

Further, the clamping support rod is installed on the base through a countersunk head screw.

Further, the contrast bracing piece passes through the cylindric lock and cooperates with the base.

The invention has the beneficial effects that:

the method can simulate the theoretical eye position, can accurately measure the position difference between the actual imaging position and the theoretical eye position, and is convenient and rapid to adjust and display the imaging position of the protective helmet.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention for adjusting an imaging position of a display protection helmet.

Fig. 2 is a front view of a measuring device in an embodiment of the present invention.

Fig. 3 is a top view of a measuring device in an embodiment of the invention.

In the figure: 1-display protective helmet; 2-a display member; 3-display lens; 4-a comparison module; 41-theoretical eye position; 42-pin; 43-screws; 44-contrast support bar; 45-cylindrical pins; 5-a clamping module; 51-a set screw; 52-embedding; 53-clamping the support bar; 54-countersunk head screws; 6-base.

Detailed Description

The invention is further illustrated by the following figures and examples.

A method for adjusting an imaging position of a display protection helmet comprises the steps of accurately measuring the imaging position through a measuring device, wherein the measuring device comprises a clamping module 5 and a comparison module 4, as shown in figure 1, the clamping module 5 extends into the display protection helmet 1 to position and fix characteristic points on the left side, the right side and the rear side of the display protection helmet 1 so as to ensure the posture when the display protection helmet 1 is worn correctly, the comparison module 4 extends into the display protection helmet 1 and simulates a theoretical eye position 41, the position of the theoretical eye position 41 is matched according to the model of the display protection helmet 1, after a display part 2 of the display protection helmet 1 is activated, projected image information is reflected to the theoretical eye position 41 through a display lens 3, an operator collects points and fits the central point of an actual imaging position, if the central point of the actual imaging position deviates from the central point of the theoretical eye position 41 within a certain range, judging the helmet to be qualified, otherwise judging the helmet to be unqualified and adjusting the parts of the display protection helmet 1 until the helmet is qualified.

As shown in fig. 1 and 2, in the present embodiment, a plurality of layers of concentric circles are provided on the theoretical eye position 41 around the center point. The distance and direction of the actual imaging position from the center point of the theoretical eye position 41 can be quickly obtained by multiple layers of concentric circles. According to the deviation distance and the direction, the parts of the display protection helmet are correspondingly purposefully adjusted, and the adjustment efficiency of the display protection helmet is improved.

In this embodiment, before projecting the image information, a cardboard is attached to the theoretical eye position 41, and an operator directly performs point fitting on the cardboard for the image information, which is convenient for operation.

As shown in fig. 1 to 3, in the present embodiment, the clamping module 5 and the comparison module 4 are both mounted on the base 6, the clamping module 5 includes clamping support rods 53 distributed on the left, right and rear sides of the base 6, and a set screw 51 mounted on the top of the clamping support rods 53 through an insert 52, the set screw 51 is used for matching with a mounting hole on the corresponding side of the display protection helmet 1, and the comparison module 4 includes a comparison support rod 44 arranged on the front side of the base 6 and a replaceable theoretical eye position 41 mounted on the upper portion of the comparison support rod 44.

As shown in fig. 1 and 2, in the present embodiment, the theoretical eye position 41 is matched with the comparison support rod 44 through the pin 42, and is fixedly connected with the comparison support rod 44 through the screw 43, so that the positioning accuracy is ensured.

As shown in fig. 2, in the present embodiment, the clamping support bar 53 is mounted on the base 6 by means of a countersunk screw 54.

As shown in fig. 2, in the present embodiment, the contrast support bar 44 is engaged with the base 6 by a cylindrical pin 45.

The method can simulate the theoretical eye position, can accurately measure the position difference between the actual imaging position and the theoretical eye position 41, and is convenient for quickly adjusting and displaying the imaging position of the protective helmet 1.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.