This standard specifies the basic requirements for the types, specifications, dimensions, physical properties, appearance requirements and testing methods of photochromic glass lens blanks. This standard is applicable to photochromic glass lens blanks that change to gray, brown, (including base colors). GB 9105-1988 Photochromic Glass Lens Blanks GB9105-1988 Standard download decompression password: www.bzxz.net

UDC 681.42: 666. 22
National Standard of the People's Republic of China
GB9105-88
The glass blanks of photochromic spectacle lens Issued on 1988-04-30
Implementation on 1988-1001
Issued by the State Bureau of Standards
National Standard of the People's Republic of ChinabzxZ.net
The giass blanks of photochromic spectacle lcns1. Subject content and scope of application
UDC 68142
GB9105-88
This standard specifies the basic requirements for the types, specifications and dimensions, physical properties, appearance requirements and testing methods of photochromic glass lens blanks.
This standard applies to the rough-cut of photochromic glass lenses that change to gray or brown (including those with base colors). 2
Terms and symbols
Original transmittance, the transmittance of the sample before irradiation with the excitation light, is represented by To. Five-minute transmittance, the transmittance of the sample after irradiation with the excitation light for five minutes, is represented by 1It5. Darkening amplitude, the difference between the original transmittance of the sample before irradiation and the five-minute transmittance, is represented by △TD. Half-revitalization time, the time required for the five-minute transmittance to recover to 2/2 of the sum of the original transmittance and the five-minute avoidance ratio after the sample stops irradiation, is represented by tHw.
Mirror power of rough-cut reference surface, the radius of curvature of the rough-cut reference surface is converted into mirror power to distinguish it from the refractive power of the lens, and is represented by D. Product classification
According to the original color tone before irradiation, it is divided into brown and gray with base color; brown and gray without base color. Specifications and dimensions
Diameter series
52, 56, 60, Φ 65, g 70 mm. Rough reference surface mirror series +3.00D, +4.00D+500D, +600D. Thickness series 30, 35, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 80mm. Technical requirements
Refractive index and birefringence shall comply with the provisions of Table 1. Table
Item name
Refractive index (nd)
Birefringence, nm /cm
Superior product
1.5230±0.0020
Original transmittance (T) shall comply with the provisions of Table 2. Approved by the Ministry of Light Industry of the People's Republic of China on April 30, 1988 1
First-class products
>15000
Qualified products
Implemented on October 1, 1988
No primary color brown, gray
Not less than
With primary color brown, gray
Not less than
GB 9105-88
Light color performance
No primary color brown, gray: With primary color brown, gray Five-minute transmittance TD: 5: Must be within the range of 15%~50%. 4.3.1
The half-brightness time HW shall comply with the provisions of Table 3 according to the darkening range. Table
Darkening Range
Less than 40%
40% ~ 55%
Greater than 55%
Superior Products
Half-revitalization Time
First-class Products
The five-minute transmittance consistency tolerance of the same batch of products shall comply with the provisions of Table 4, Table
Project Name
The same batch consistency tolerance
Superior Products
The rough specifications and dimensions tolerance shall comply with the provisions of Table 5. Table
Project Name
Superior Products
Diameter tolerance
Center thickness tolerance
Thickness run difference
Reference surface mirror difference
The rough surface defect index shall comply with the provisions of Table 6. 4
First-class products
First-class products
0～04
Qualified products
Qualified products
Qualified products
0~～05
0～+04
Broken edge (total area on the intermediate cylinder)
Lack of edge (any part around)
Knife marks [depth)
Explosion (axial direction of cylinder)
Indicators of bubbles and streaks shall comply with the provisions of Table 7, item
Bubbles")
Superior products
Inside and outside the quality range
Not allowed
GB 910588
Superior product
Not allowed
Not allowed
First-class product
Quality medical
>@005mm
Not allowed
Quality solid
2 pieces allowed
First-class product
Not allowed
Not allowed
Quality adjustment
Qualified product
<15mma
Less than 5% of the true diameter|| tt||Qualified products
Quality egg circle outside
>Φ005mm
Not allowed
4 allowed
Note: 1) The quality diagram refers to the circle with the center of the roughness as the fixed center and 70% of the roughness radius as the radius, and the rest is called the quality circle outside. 2) The bubble depth is less than the specified index of the shear mark and will not be evaluated. 5
Test method
The refractive index is tested with any refractive index test with an accuracy of not less than ±5×10". The maximum optical path difference of the edge part of 5% of the roughness diameter is measured by a polarimeter on the axial direction of the lens (or sealed sample comparison). The original transmittance is measured by a light color performance tester, and the test length is 540~560mml. Light color performance test
5.4.1 The light color performance tester must meet the following conditionsa. Use a war lamp as the excitation light source:
b The illumination value of the sample perpendicular to the excitation light beam is 100,000 grams (1x):c. The temperature control range of the test sample room is 250 ± 0.5°C:d The excitation light source must be at a 45-degree angle to the optical axis of the sample being tested. See Appendix B (reference) Figure B1 for the schematic diagram of the tester. The diameter of the light spot irradiated on the sample crystal must be within the range of 10 to 15 mm or the corresponding area range:3
e. The test light bar must be smaller than the excitation light irradiation light bar. GB9105-88
5.4.2 The test sample requires that the sample be prepared with a thickness of 2.0 ± 0.1 mm, a thickness difference of no more than 0.02 mm, and a surface finish of 0.008 (14). No bubbles, streaks, impurities, etc. are allowed in the sample being tested to ensure the test accuracy. 5.4.3
The five-minute transmittance and half-revitalization time are tested with a photochromic performance tester. The diameter tolerance of the measuring disc of the specified size is measured with a vernier caliper.
The center thickness tolerance is measured with a thickness dial gauge or a thickness caliper at the center of the lens roughness. The thickness difference is measured with a thickness dial gauge or a thickness caliper at the maximum difference in thickness of the lens roughness edge (excluding chamfers). The reference surface mirror tolerance is measured by placing a reference sample with a radius error of less than 0.02mm on the spherical surface of the lens, and using a wire gauge to detect the gap. Rough surface defects
Rough surface defects (except scissor marks) are measured with a ruler and a magnifying glass with a magnification of 10 times. Scissor marks are measured visually (or compared with the specified sample). 5.6.2
Detection of bubbles and streaks
5.7.1 Bubbles are visually inspected with a 60W incandescent lamp under a black background. 5.7.2
The stripes (including photosensitive stripes) shall be visually inspected under sunlight or after irradiation with a xenon lamp. 6
Inspection rules
Products shipped out of the factory shall be inspected and accepted according to the technical requirements specified in this standard. Products of one specification delivered in the same batch are considered a batch. 6.1
Acceptance by the consignee shall be in accordance with this standard.
6.2. For products with special specifications, a separate agreement may be made according to the requirements of both the supplier and the buyer. 6.3 The acceptance of the physical properties and appearance requirements of the raw materials shall be in accordance with the normal sampling plan of GB2828 "Batch-by-Batch Inspection Count Sampling Procedure and Sampling Table (Applicable to the Inspection of Continuous Batches)", and its inspection level and AQL are as follows: the inspection level of each requirement for physical properties is S-3, and the qualified quality level is AQL=6.5. See Appendix A (Supplement) Table A1. The inspection level of each requirement for appearance is I, and the qualified quality level is AQL=40. See Appendix A (Supplement) Table A2. Marking, packaging, transportation, storage
Marking.
Each specification of the product is packed in a certain quantity and marked with the product name, specification, quantity, batch number, packaging date and product grade. The packaging box should be filled and packed tightly. The large packaging box should be marked with the product name, trademark, variety, specification, batch number, quantity, weight, and grade.2
Manufacturer name. The box must be marked with "Glass is fragile, handle with care", "Moisture-proof" and other signs. 7.3 The maximum number of large packaging boxes per box cannot exceed 500 pairs (net weight about 25kg). 7.4
When transporting, be careful to handle with care, protect from rain and moisture. 7.5
When storing, pay attention to ventilation and dryness to prevent moisture. Product batch (N)
151~280
281 ~ 500
501 1200
1201 ~- 3200
3201 ~ 10000
10001 -- 35000
Product batch (N)
151 - 280
281 ~ 500
501 ~ 1200
1201 ~ 3200
3201 ~ 10000
10001 ~ 35000
GB9105—88
Xie Lu A
Acceptance of physical properties and appearance of raw materials
(Supplement)
Acceptance of physical properties
Sample size of sleeve sample
Sample size of replacement sample
Number of qualified judgment
(Ac)
A2 Acceptance of appearance
Number of qualified judgment
(Ac)
AQL 65
Number of unqualified judgment
(Re）
AQL- 40
Number of failed shots
1 Test light source
Additional instructions:
GB9105-88
Schematic diagram of the test principle of the light color performance tester (reference part)
2-Sample
3-Receiver
4 Excitation light source
This standard is proposed by the Daily Necessities Industry Bureau of the Ministry of Light Industry of the People's Republic of China. This standard is under the jurisdiction of the China Glass Industry Standardization Quality Inspection Center. 3
5-Recording device
This standard was drafted by the Glass Industry Science and Technology Research Institute of the Ministry of Light Industry, Beijing No. 603 Factory, Jiedu No. 208, and Fengyang Color Glass.
The main drafters of this standard are: Zhou Wenquan, Han Kehuo, Xu Side, Zhou Mingcheng, Huang Qinhao, and Zhu Zhu. China
People's Republic
National Standard
Photochromic Glass Lenses
GB 9105-88
Published by China Light Industry Press
Distributed by the Editorial and Publishing Committee of Light Industry Standardization (Address: No. 12, Guanghua Road, Chaowai, Beijing) All rights reserved. No reproduction allowed
Print run 1-1000
Book number 155019.2339 Price 1.50 yuan
88901689
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