鏡頭焦距測試圖簡介

　　分辨率測試卡鏡頭焦距測試圖TE100用于調整相機鏡頭，檢查后焦距和分辨率，并確認枕形和桶形失真。它包括一個西門子之星，以及幾個黑白線對勾勒出箭頭形狀組成。

　　鏡頭焦距測試圖功能

　　1、照相機鏡頭的調整

　　2、檢查后焦距

　　3、檢查分辨率

　　4、確認枕形和桶形失真

　　鏡頭焦距測試圖使用方法

　　借助低透射濾光片和低水平的照明確保相機調制光圈打開位置沒有過度調節。

　　a)光學聚焦：調整焦距到最大變焦距離。

　　b)后焦距：通過調節相機鏡頭的機械螺絲到聚焦在最短焦距，并交替進行優化光學聚焦。

　　c)后焦距：如果焦點從一個信道到另一個信道的最大和最短焦距個別的回升管必須在光軸機械調整。

　　1.選擇白色通道。設置光學聚焦在最大焦距。在最短焦距和發散焦點調整W-通道回升管直到最佳聚焦的實現。如果有必要優化通過交替調整光學聚焦。

　　2.調整不變光學聚焦和最短焦距的紅色和藍色回升管，直到實現最佳測量聚焦。圖像對焦(對焦調整)調整后焦距得到全焦段(放大)和恒定距離對象。

　　圖像格式由4空心箭頭鏈接。10個各自寬度為畫面高度0.5%的黑線和白線分別位于圖畫格式內外?？梢酝ㄟ^線的輔助讀取圖像被調整箭頭提示、枕形和桶形失真。

　　從75線開始線條圖形在左側部分由25行到450行進展。在右側欄的圖像以MHz為單位進行縮放，從1MHz開始到8MHz結束。條圖形以5√2因子步進。

　　Introduction to lens focal length test chart

　　Lens focal length test chart TE100 is used to adjust the camera lens, check the back focus and resolution, and confirm the pillow and barrel distortion. It consists of a star of Siemens, as well as several black and white lines that outline the shape of the arrows.

　　Lens focal length test chart function

　　1, the camera lens adjustment

　　2, check the back focal length

　　3, check the resolution

　　4, to confirm the pillow and barrel distortion

　　Lens focal length test chart using the method

　　With the low transmittance filter and low level of illumination to ensure that the camera modulation aperture open position is not over-adjusted.

　　a) Optical focus: adjust the focal length to the maximum zoom distance.

　　b) Back focus: Adjust the camera lens by adjusting the camera's lens to focus on the shortest focal length and alternately optimize the optical focus.

　　c) Back focus: If the focus is from one channel to another, the maximum and shortest focal lengths of the individual recoil tubes must be mechanically adjusted on the optical axis.

　　1. Select the white channel. Set the optical focus at the maximum focal length. Adjust the W-channel riser at the shortest focal length and divergence focus until the best focus is achieved. If it is necessary to optimize the optical focus by alternately adjusting.

　　2. Adjust the invariant optical focus and the shortest focal length of the red and blue recoil tubes until the best measurement focus is achieved. Image Focus (Focus Adjustment) Adjusts the focal length to get full focus (magnified) and constant distance objects.

　　The image format is linked by 4 hollow arrows. 10 black and white lines each with a width of 0.5% of the screen are located inside and outside the picture format. Can be read by the auxiliary image of the line by adjusting the arrow prompt, pincushion and barrel distortion.

　　Line lines start from line 75 on the left side from 25 to 450 rows. The image on the right side of the column is scaled in MHz, starting at 1MHz and ending at 8MHz. The bar graph is stepped by the 5√2 factor.