BS 7012-4.1-1998
光學顯微鏡.顯微鏡物鏡和物鏡旋座規范.螺紋類型有效值(4/5in和1/36in)已作廢

Light microscopes - Specification for microscope objective and nosepiece screw threads - Screw thread type RMS (4/5 in x 1/36 in)

BS 7012-4.1-1998 發布歷史

This part of ISO 8038 specifies the dimensions of screw thread type RMS as one type of thread for connecting a microscope objective to the nosepiece. NOTE 1 The values given in this part of ISO 8038 conform, except for the length of the thread lug, to the internationally used screw thread laid down by the Microscopical Society of London in 1858, and published [1] as the Royal Microscopical Society Standard (RMS Standard) in 1936. The use of this screw thread is recommended for microscopes unless other fittings are required for optical or design reasons. NOTE 2 A specific combination of eyepiece, objective and tube lens (if provided, e.g. infinity optics) is frequently used to correct aberrations. Therefore the combination of an objective from one manufacturer, although conforming to this part of ISO 8038, and an eyepiece from another manufacturer may cause loss of image quality. Objectives and eyepieces of one manufacturer can be combined with microscopes of another manufacturer if they conform to this part of ISO 8038 and also to ISO 9345-1 [2]. note:1) The maximum length of the thread lug according to this part of ISO 8038 is 5 mm. The RMS Standard specifies the length of the thread as 3,175 mm and length of the guide cylinder as 2,540 mm, giving a total of 5,715 mm.

BS 7012-4.1-1998由英國標準學會 GB-BSI 發布于 1998-03-15，并于 1998-03-15 實施，于 2011-06-30 廢止。

BS 7012-4.1-1998 在中國標準分類中歸屬于: N32 放大鏡與顯微鏡，在國際標準分類中歸屬于: 37.020 光學設備。

BS 7012-4.1-1998的歷代版本如下：

• 1998年03月15日 BS 7012-4.1-1998 光學顯微鏡.顯微鏡物鏡和物鏡旋座規范.螺紋類型有效值(4/5in和1/36in)

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標準號

BS 7012-4.1-1998

發布日期

1998年03月15日

實施日期

1998年03月15日

廢止日期

2011-06-30

中國標準分類號

N32

國際標準分類號

37.020

發布單位

GB-BSI

代替標準

BS ISO 8038-2011

適用范圍

This part of ISO 8038 specifies the dimensions of screw thread type RMS as one type of thread for connecting a microscope objective to the nosepiece. NOTE 1 The values given in this part of ISO 8038 conform, except for the length of the thread lug, to the internationally used screw thread laid down by the Microscopical Society of London in 1858, and published [1] as the Royal Microscopical Society Standard (RMS Standard) in 1936. The use of this screw thread is recommended for microscopes unless other fittings are required for optical or design reasons. NOTE 2 A specific combination of eyepiece, objective and tube lens (if provided, e.g. infinity optics) is frequently used to correct aberrations. Therefore the combination of an objective from one manufacturer, although conforming to this part of ISO 8038, and an eyepiece from another manufacturer may cause loss of image quality. Objectives and eyepieces of one manufacturer can be combined with microscopes of another manufacturer if they conform to this part of ISO 8038 and also to ISO 9345-1 [2]. note:1) The maximum length of the thread lug according to this part of ISO 8038 is 5 mm. The RMS Standard specifies the length of the thread as 3,175 mm and length of the guide cylinder as 2,540 mm, giving a total of 5,715 mm.